DESC:BACKGROUND
Technical Field
[0001] The embodiments herein generally relate to a telecommunication system and more particularly, relate to a system and method for receiving a first frequency band signal (for example, S-band signal) using a receiver of a second frequency band signal (for example, L-band receiver).
Description of the Related Art
[0002] In the field of telecommunication technology, a signal-receiving module is an important component for receiving signals that are transmitted from a Global Navigation Satellite System (GNSS). The signal may be an L-band or S-band which is a part of the microwave band of electromagnetic spectrum. The L-band signal covers frequencies ranging from 1 to 2 gigahertz (GHz) and the S-band signal covers frequencies ranging from 2 to 4 gigahertz (GHz). An existing telecommunication system utilizes the S-band signal for transmitting information from an antenna to a base station as the S-band signal produces uninterrupted location information of a device (vehicle, or mobile) at high spatial and temporal resolution. The S-band signal is used in reliable communication over large areas, such as airport surveillance radar for air traffic control, weather radar, surface ship radar, and communications satellites. Conventionally, a single-band receiving system receives a signal transmitted from a satellite. The single-band receiving system includes a receiver to receive only one type of frequency band of signal from satellites. In order to receive different bands of radio frequency signals, a multiband receiving system is required.
[0003] The existing multiband receiving system includes a multiband receiver that receives N number of different band signals from one or more satellites using an antenna and an independent receiving (RX) line for carrying each signal. For example, the different band signals may be L1, L5, L2, and S-band. Also, the existing multiband receiving system requires separate receiving (RX) lines for each radio frequency (RF) band to carry the signals from the antenna to analog to digital converter to extract information from the received signal. For example, the existing multiband receiving system requires a dedicated S-band receiver, a dedicated L1-band receiver, a dedicated L2-band receiver, a dedicated L5-band receiver to receive the corresponding radio frequency band signal. An occurrence of signal interference between signals is experienced in the existing multiband receiving system while receiving different bands of radio frequency signals simultaneously using separate receiving (RX) lines for each band of radio frequency (RF) signal. This might cause a temporary loss of a signal or may affect the quality of the signals. To reduce the occurrence of interference between different types of radio frequency band signals the existing multiband receiving system requires additional components including at least one equalizer, booster, and shielding arrangement which makes the system design more complex, and requires more power consumption to maintain the different band receivers.
[0004] In conventional approaches, the received RF signal is processed by converting it either to an intermediate frequency (IF) and then to baseband or directly to baseband using a mixer and a local oscillator. The resulting signal is then filtered, amplified, and prepared for digitization by an ADC. While these approaches offer high selectivity and sensitivity, they come with disadvantages such as circuit complexity, higher power consumption, and susceptibility to noise in the case of IF conversion. Direct conversion methods, on the other hand, may suffer from issues like DC offset, I/Q imbalance, and limited dynamic range.
[0005] Hence, there is a need for an improved system and method that efficiently receives and processes RF signals while addressing the limitations of conventional approaches, such as circuit complexity, noise susceptibility, and signal imbalance.
SUMMARY
[0006] In view of a foregoing, an embodiment herein provides a system for receiving a first frequency band signal using a receiver of a second frequency band signal. The system includes a frequency processing circuit that is connected to an antenna. The frequency processing circuit includes (i) a low noise amplifier that is configured to receive the first frequency band signal from the antenna; (ii) a frequency mixer that is configured to receive the first frequency band signal from the low noise amplifier and combine the first frequency band signal with a reference frequency signal to generate a mixer output, the reference frequency signal is equal to a frequency difference between a first frequency band and a second frequency band, the mixer output includes a sum frequency component and a difference frequency component; and (iii) a filter that is connected to the frequency mixer and configured to isolate the difference frequency component by removing the sum frequency component from the mixer output, the difference frequency component represents the first frequency band signal shifted to the second frequency band. The system further includes a receiver of the second frequency band signal that is configured to receive the difference frequency component from the filter, thereby receiving the first frequency band signal using the receiver of the second frequency band signal.
[0007] In some embodiments, the first frequency band signal includes at least one of S-band, C-band, or X-band, and the second frequency band signal includes L-band.
[0008] In some embodiments, the sum frequency component is generated when frequencies of the first frequency band signal and the reference frequency signal are mixed together by the frequency mixer. The difference frequency component is generated when the frequencies of the first frequency band signal and the reference frequency signal are subtracted by the frequency mixer.
[0009] In some embodiments, the frequency processing circuit includes a voltage control oscillator (VCO) that generates the reference frequency signal by calculating a difference in the frequencies of the first frequency band and the second frequency band.
[0010] In some embodiments, the low noise amplifier is configured to amplify the first frequency band signal from the antenna by increasing the amplitude of the first frequency band signal and filtering noise from the first frequency band signal.
[0011] In some embodiments, the frequency processing circuit includes an amplifier that is connected between the filter and the receiver of the second frequency band signal. The amplifier is configured to amplify the difference frequency component and transmit the amplified difference frequency component to the receiver of the second frequency band signal.
[0012] In some embodiments, the system further includes a signal processing circuit that is connected to the receiver of the second frequency band signal and configured to process the difference frequency component to decode the information associated with the first frequency band signal.
[0013] In one aspect, a method for receiving a first frequency band signal using a receiver of a second frequency band signal is provided. The method incudes (i) providing a frequency processing circuit connected to an antenna, where the frequency processing circuit includes a low noise amplifier, a frequency mixer, and a filter; (ii) receiving, using the low noise amplifier, the first frequency band signal from the antenna; (iii) receiving, using the frequency mixer, the first frequency band signal from the low noise amplifier and combining the first frequency band signal with a reference frequency signal to generate a mixer output, where the reference frequency signal is equal to a frequency difference between the first frequency band and the second frequency band, and the mixer output includes a sum frequency component and a difference frequency component; (iv) isolating, using the filter, the difference frequency component by removing the sum frequency component from the mixer output, where the difference frequency component represents the first frequency band signal shifted to the second frequency band; and (v) receiving, using the receiver of the second frequency band signal, the difference frequency component from the filter, thereby receiving the first frequency band signal using the receiver of the second frequency band signal.
[0014] In some embodiments, the method includes generating, using a voltage control oscillator (VCO), the reference frequency signal by calculating a difference in the frequencies of the first frequency band and the second frequency band.
[0015] In some embodiments, the method includes processing, using a signal processing circuit that is connected to the receiver of the second frequency band signal, the difference frequency component to decode the information associated with the first frequency band signal.
[0016] The system of the present disclosure is designed to receive multiple bands of radio frequency (RF) signals and extract information using an L-band receiver, thereby eliminating the need for a dedicated independent RF receiver such as S-band, L1-band, L5-band, or L2-band receivers. This information can be utilized in various applications, including surface ship radar, weather radar, navigational assistance, vessel identification and tracking, air traffic control, inflight Wi-Fi, and spacecraft telemetry. By reducing the need for separate RF receivers for different bands, the system minimizes the space required for installation. The system of the present disclosure enables accurate extraction of information from S-band signals using the L-band receiver without introducing distortion. Additionally, the system prevents interference between different RF bands, a common issue in existing setups that rely on multiple RF receivers to transmit signals from the antenna to an analog-to-digital converter. As the necessity for a dedicated RF receiver is eliminated, the energy required to simultaneously receive multiple band signals from the antenna is reduced.
[0017] Further, the system of the present disclosure eliminates the need for intermediate frequency (IF) or direct baseband conversion, thereby reducing circuit complexity, power consumption, and noise susceptibility. Unlike IF conversion methods, the system of the present disclosure minimizes noise interference, and compared to direct conversion methods, the system avoids issues such as DC offset, I/Q imbalance, and limited dynamic range. This streamlined approach ensures efficient signal processing with enhanced performance and reliability.
[0018] These and other aspects of the embodiments herein will be better appreciated and understood when considered in conjunction with the following description and the accompanying drawings. It should be understood, however, that the following descriptions, while indicating preferred embodiments and numerous specific details thereof, are given by way of illustration and not of limitation. Many changes and modifications may be made within the scope of the embodiments herein without departing from the spirit thereof, and the embodiments herein include all such modifications
BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The embodiments herein will be better understood from the following detailed description with reference to the drawings, in which:
[0020] FIG. 1 illustrates a system for receiving a first frequency band signal using a receiver of a second frequency band signal according to some embodiments herein;
[0021] FIG. 2 is an exemplary view of a system for receiving a S-band signal using a L-band receiver according to some embodiments herein;
[0022] FIG. 3 is method for receiving a first frequency band signal using a receiver of a second frequency band signal according to some embodiments herein;
[0023] FIG. 4A is a block diagram that illustrates a simulation of S-band reception using a L-band receiver according to some embodiments herein; and
[0024] FIG. 4B is graphical representation that illustrates simulation results on a simulation of S-band reception using a L-band receiver according to some embodiments herein.
DETAILED DESCRIPTION OF THE DRAWINGS
[0025] The embodiments herein and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments that are illustrated in the accompanying drawings and detailed in the following description. Descriptions of well-known components and processing techniques are omitted .so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.
[0026] As mentioned, there is a need for an improved system and method to efficiently receive and process radio frequency (RF) signals without any issues such as circuit complexity, noise susceptibility, and signal imbalance. The embodiments herein achieve this by proposing a system and method for receiving different (or any) bands of radio frequency (RF) signals using a specific receiver (for example, L-band receiver). In other words, the embodiments relate to a system and method for receiving a first frequency band signal using a receiver of a second frequency band signal. Referring now to the drawings, and more particularly to FIGS. 1 through 4B, where similar reference characters denote corresponding features consistently throughout the figures, there are shown preferred embodiments.
[0027] As used herein, several terms are defined below:
[0028] The term “radio frequency (RF) band” refers to a radio frequency spectrum that includes the set of frequencies of the electromagnetic framework ranging from 30 Hz to 300 GHz which is divided into several ranges, or bands, and given labels, such as low frequency (LF), medium frequency (MF) and high frequency (HF).
[0029] The term “S-band signal” refers to a part of the microwave band of the electromagnetic spectrum covering frequencies from 2 to 4 gigahertz (GHz).
[0030] The term “L-band signal” refers to a part of the microwave band of the electromagnetic spectrum covering frequencies from 1 to 2 gigahertz (GHz).
[0031] The term “L1-band signal” refers to a part of the microwave band of the electromagnetic spectrum that uses the frequency 1575.42 megahertz (MHz).
[0032] FIG. 1 illustrates a system 100 for receiving a first frequency band signal using a receiver of a second frequency band signal according to some embodiments herein. The system 100 includes an antenna 102, a frequency processing circuit 104, a receiver of a second frequency band signal 106, and a signal processing circuit 108 which are connected with each other. The frequency processing circuit 104 further includes a low noise amplifier (LNA) 110, a frequency mixer 112, a voltage control oscillator (VCO) 114, a filter 116, and an amplifier 118.
[0033] The antenna 102 is configured to receive a first frequency band signal from a signal transmission station. The first frequency band signal may include at least one of radio frequency (RF) signals or non-ionizing electromagnetic fields (EMF), such as radio waves, microwaves, infrared radiation (IR), and visible light. In some embodiments, the first frequency band signal is RF signal. The first frequency band signal may include at least one of S-band, C-band, or X-band. In some embodiments, the first frequency band signal is S-band signal. The S-band signal is a part of the microwave band of the electromagnetic spectrum covering frequencies from 2 to 4 gigahertz (GHz). The S-band signal includes a frequency of 2.492GHz. The telecommunication signal transmission station may be at least one of a global navigation satellite system (GNSS), a broadcasting station, a radio detection and ranging, (RADAR), a global positioning system (GPS), or any related telecommunication signal transmission systems. The antenna 102 is selected from a group consisting of an active antenna, a passive antenna, a patch antenna, a helical antenna, and a choke-ring antenna.
[0034] The frequency processing circuit 104 is configured to receive the first frequency band signal from the antenna 102 to amplify the first frequency band signal using the low noise amplifier (LNA) 110. The low noise amplifier 110 may be configured to amplify the first frequency band signal by increasing the amplitude of the first frequency band signal and filtering noise from the first frequency band signal. The low noise amplifier 110 may amplify the first frequency band signal without degrading a signal-to-noise ratio (SNR) of the first frequency band signal. The low-noise amplifier (LNA) 110 may be implemented as either a bipolar junction transistor (BJT) LNA or a metal-oxide-semiconductor field-effect transistor (MOSFET) LNA, and is specifically designed as an S-band LNA. In some embodiments, the low noise amplifier 110 is designed as a S-band low-noise amplifier.
[0035] The frequency mixer 112 is configured to receive the first frequency band signal that is amplified from the low noise amplifier 110 and combine the first frequency band signal with a reference frequency signal to generate a mixer output. The mixer output includes a sum frequency component, and a difference frequency component. The reference frequency signal is equal to a frequency difference between a first frequency band and a second frequency band. The first frequency band may be associated with the first frequency band signal (for example, S-band signal). In some embodiments, a frequency of the first frequency band is 2.492GHz. The second frequency band may be associated with the second frequency band signal. In some embodiments, the second frequency band signal is L-band signal. In some embodiments, a frequency of the second frequency band is 1.575 GHz. The reference frequency signal may be generated by the voltage control oscillator 114. In some embodiments, the voltage control oscillator 114 generates the reference frequency signal by calculating a difference in the frequencies of the first frequency band and the second frequency band. In some embodiments, the reference frequency signal has a frequency of 917 MHz (that is, 2.492 GHz-1.575 GHz). The voltage control oscillator 114 may be of a Clapp voltage control oscillator or Colpitts voltage control oscillator.
[0036] The frequency mixer 112 may generate the sum frequency component by mixing the frequencies of the first frequency band signal and the reference frequency signal together. The frequency mixer 112 may generate the difference frequency component by subtracting the frequencies of the first frequency band signal and the reference frequency signal. The frequency mixer 112 may be at least one of a passive mixer, an active mixer, an unbalanced mixer, a single balanced mixer, a double balanced mixer, a triple balanced mixer, or Gilbert cell mixer. The frequency mixer 112 may be a non-linear device.
[0037] The filter 116 is connected with the frequency mixer 112 and configured to receive the mixer output including the sum frequency component and the difference frequency component from the frequency mixer 112. The filter 116 is further configured to isolate the difference frequency component by removing the sum frequency component from the mixer output. The difference frequency component represents the first frequency band signal shifted to the second frequency band. The filter 116 may be at least one a high pass filter, a low-pass filter, an all-pass filter, a band pass filter, or a notch filter.
[0038] The amplifier 118 is connected between the filter 116 and the receiver of the second frequency band signal 106. The amplifier 118 is configured to amplify the difference frequency component and transmit the amplified difference frequency component to the receiver of the second frequency band signal 106. The amplifier 118 may increase the signal strength of the difference frequency component, thereby increasing the sensitivity of the receiver of the second frequency band signal 106. The amplifier 118 may be at least one of a broadband amplifier, a linear amplifier, a low noise amplifier, a RF amplifier, a variable gain amplifier, Class C, Class B, Class AB, a solid-state power amplifier, a transconductance amplifier, or a coaxial RF high power amplifier.
[0039] The receiver of the second frequency band signal 106 is configured to receive the amplified difference frequency component from the amplifier 118. That is, the receiver of the second frequency band signal 106 receives the first frequency band signal that is shifted to the second frequency band. The receiver of the second frequency band signal 106 further transmits the difference frequency component to the signal processing circuit 108 for further processing. The receiver of the second frequency band signal 106 may be a standalone external unit or a standard, off-the-shelf component.
[0040] The signal processing circuit 108 is configured to receive the difference frequency component from the receiver of the second frequency band signal 106 and process the difference frequency component to decode the information associated with the first frequency band signal. The signal processing unit 108 may include at least one of an analog-to-digital converter (ADC), a digital signal processor, a digital-to-analog converter (DAC), or a memory unit.
[0041] Thus, the system 100 receives the first frequency band signal using the receiver of the second frequency band signal 106.
[0042] FIG. 2 is an exemplary view of a system 200 for receiving a S-band signal using a L-band receiver according to some embodiments herein. The system 200 includes an antenna 202, a frequency processing circuit 204, and a L-band receiver 206. The frequency processing circuit 204 further includes S-band low noise amplifier (LNA) 208, a voltage control oscillator (VCO) 210, a frequency mixer 212, a filter 214, and an amplifier 216.
[0043] The antenna 202 receives the S-band signal from a signal transmission station. The S-band low noise amplifier 208 of the frequency processing circuit 204 receives the S-band signal from the antenna 102 and amplifies the S-band signal by increasing the amplitude of the S-band signal and filtering noise from the S-band signal. The voltage control oscillator 210 generates a reference frequency signal (or local carrier signal) by calculating a difference in the frequencies of S-band and L1-band (that is, S-L1). The frequency of the S-band is of 2.492GHz and the frequency of the L1-band is of 1.575 GHz, hence the reference frequency signal (S-L1) is calculated as 2.492GHz - 1.575 GHz = 917MHz.
[0044] The frequency mixer 212 receives the amplified S-band signal (S) from the S-band low noise amplifier 208 and the reference frequency signal (S-L1) from the voltage control oscillator 210 as input. The frequency mixer 212 further combines the S-band signal (S) with the reference frequency signal (S-L1) to generate a mixer output. The mixer output includes a sum frequency component, and a difference frequency component. The frequency mixer 212 generates the sum frequency component by mixing the frequencies of the S-band signal (S) and the reference frequency signal (S-L1) together. That is, the sum frequency component is an up-converted signal which is [S+(S-L1)] = [2S-L1] band signal, i.e., [2.492+(0.917)] = 3.412GHz (falls within S-band range: 2 GHz to 4 GHz). The frequency mixer 212 generates the difference frequency component by subtracting the frequencies of the S-band signal (S) and the reference frequency signal (S-L1). That is, the difference frequency component is a down-converted signal which is [S-(S-L1)] = [L1] band signal, i.e., [2.492-(0.917)] = 1.575 GHz (falls within L-band range: 1 GHz to 2 GHz).
[0045] The filter 214 that is connected with the frequency mixer 212 receives the mixer output including the sum frequency component [2S-L1] and the difference frequency component [L1] from the frequency mixer 212 and isolates the difference frequency component [L1] by removing the sum frequency component [2S-L1] from the mixer output. The difference frequency component represents the S-band signal shifted to the L-band.
[0046] The amplifier 216 amplifies the difference frequency component [L1] and transmits the amplified difference frequency component [L1] to the L-band receiver 206. The L-band receiver 206 receives the amplified difference frequency component [L1] from the amplifier 216 to extract information in the S-band signal without distortion using a signal processing unit. Thus, the system 200 receives the S-band signal using the L-band receiver 206. With this approach, a need for a dedicated S-band receiver for receiving the S-band signal is eliminated. This approach further reduces the system complexity and lowers power consumption.
[0047] FIG. 3 is method for receiving a first frequency band signal using a receiver of a second frequency band signal according to some embodiments herein. At step 302, a frequency processing circuit including a low noise amplifier 110, a frequency mixer 112, a voltage control oscillator 114, and a filter 116 and a receiver of the second frequency band signal 106 is provided. At step 304, a first frequency band signal is received from a signal transmission station using an antenna 102. At step 306, the first frequency band signal is received from the antenna 102 and is amplified using the low noise amplifier (LNA) 110.
[0048] At step 308, a reference frequency signal is generated by calculating a difference in the frequencies of a first frequency band and a second frequency band using the voltage control oscillator 114. At step 310, the first frequency band signal that is amplified from the low noise amplifier 110 and the reference frequency signal from the voltage control oscillator 114 are received at the frequency mixer 112. At step 312, the first frequency band signal is combined with the reference frequency signal using the frequency mixer 112 to generate a mixer output that includes a sum frequency component and difference frequency component.
[0049] At step 314, the mixer output including the sum frequency component and the difference frequency component is received from the frequency mixer 112 and is filtered using the filter 116 to isolate the difference frequency component from the sum frequency component. At step 316, the difference frequency component is amplified and the amplified difference frequency component is transmitted to the receiver of the second frequency band signal 106 using the amplifier 118. At step 318, the amplified difference frequency component from the amplifier 118 is received using the receiver of the second frequency band signal 106. Thus, the first frequency band signal is received using the receiver of the second frequency band signal 106.
[0050] In some embodiments, the method further includes processing, using a signal processing circuit 108 that is connected to the receiver of the second frequency band signal 106, the difference frequency component to decode the information associated with the first frequency band signal.
[0051] FIG. 4A is a block diagram that illustrates a simulation of S-band reception using a L-band receiver according to some embodiments herein. The block diagram shows a system 200 of FIG. 2 that includes a frequency processing circuit including a mixer, and a local oscillator (LO). The system 200 of FIG. 2 is simulated in Simulink to demonstrate the proof of concept, where the input is an S-band signal that, when mixed with a local oscillator (LO) frequency of 915 MHz, translates the information to the L1 band at 1.575 GHz.
[0052] The S-band modulated signal at 2.497 GHz is fed into the mixer, where it is combined with the LO signal from the LO at 915 MHz using a low-side injection method. This mixing process generates two frequency components: a sum frequency and a difference frequency. A filter is used to isolate the difference frequency component or the downconverted L1-band signal at 1.575 GHz, which is then processed by the L-band receiver. The system 200 of FIG. 2 effectively utilizes the L-band receiver to decode the S-band signal by converting it to the operational frequency range of the receiver.
[0053] FIG. 4B is graphical representation that illustrates simulation results on a simulation of S-band reception using a L-band receiver according to some embodiments herein. The graphical representation depicts a frequency spectrum of the signals at various stages of a frequency processing circuit, including an input S-band signal, a local oscillator (LO) frequency, and a resulting downconverted L1-band signal. The output L1-band signal is successfully received and decoded by a traditional L1 RFIC receiver, removing the necessity for a dedicated S-band receiver and effectively transforming the existing L1-band receiver into a multi-band receiver capable of handling both L1 and S-band signals.
[0054] As shown in FIG. 4B, the graphical representation highlights the successful conversion of the S-band signal to the L-band frequency range, with the shape of the peaks in the graph remaining consistent, demonstrating the fidelity of the conversion process and the effectiveness of the system 100 in utilizing an L-band receiver for S-band signal processing.
[0055] The foregoing description of the specific embodiments will so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications without departing from the generic concept, and, therefore, such adaptations and modifications should be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the appended claims.
,CLAIMS:I/We Claim:

1. A system (100) for receiving a first frequency band signal using a receiver of a second frequency band signal (106), wherein the system (100) comprising,
a frequency processing circuit (104) that is connected to an antenna (102), wherein the frequency processing circuit (104) comprises
a low noise amplifier (110) that is configured to receive the first frequency band signal from the antenna (102);
characterized in that,
a frequency mixer (112) that is configured to receive the first frequency band signal from the low noise amplifier (110) and combine the first frequency band signal with a reference frequency signal to generate a mixer output, wherein the reference frequency signal is equal to a frequency difference between a first frequency band and a second frequency band, wherein the mixer output comprises a sum frequency component, and a difference frequency component; and
a filter (116) that is connected to the frequency mixer (112) and configured to isolate the difference frequency component by removing the sum frequency component from the mixer output, wherein the difference frequency component represents the first frequency band signal shifted to the second frequency band; and
a receiver of the second frequency band signal (106) that is configured to receive the difference frequency component from the filter (116), thereby receiving the first frequency band signal using the receiver of the second frequency band signal (106).

2. The system (100) as claimed in claim 1, wherein the first frequency band signal comprises at least one of S-band, C-band, or X-band, and the second frequency band signal comprises L-band.

3. The system (100) as claimed in claim 1, wherein the sum frequency component is generated when frequencies of the first frequency band signal and the reference frequency signal are mixed together by the frequency mixer (112), wherein the difference frequency component is generated when the frequencies of the first frequency band signal and the reference frequency signal are subtracted by the frequency mixer (112).

4. The system (100) as claimed in claim 1, wherein the frequency processing circuit (104) comprises a voltage control oscillator (VCO) (114) that generates the reference frequency signal by calculating a difference in the frequencies of the first frequency band and the second frequency band.

5. The system (100) as claimed in claim 1, wherein the low noise amplifier (110) is configured to amplify the first frequency band signal from the antenna (102) by increasing the amplitude of the first frequency band signal and filtering noise from the first frequency band signal.

6. The system (100) as claimed in claim 1, wherein the frequency processing circuit (104) comprises an amplifier (118) that is connected between the filter (116) and the receiver of the second frequency band signal (106), wherein the amplifier (118) is configured to amplify the difference frequency component and transmit the amplified difference frequency component to the receiver of the second frequency band signal (106).
7. The system (100) as claimed in claim 1, wherein the system (100) comprising a signal processing circuit (108) that is connected to the receiver of the second frequency band signal (106) and configured to process the difference frequency component to decode the information associated with the first frequency band signal.

8. A method for receiving a first frequency band signal using a receiver of a second frequency band signal (106), wherein the method comprising,
providing a frequency processing circuit (104) that is connected to an antenna (102), wherein the frequency processing circuit (104) comprises a low noise amplifier (110), a frequency mixer (112), and a filter (116);
receiving, using the low noise amplifier (110), the first frequency band signal from the antenna (102);
characterized in that,
receiving, using the frequency mixer (112), the first frequency band signal from the low noise amplifier (110) and combining the first frequency band signal with a reference frequency signal to generate a mixer output, wherein the reference frequency signal is equal to a frequency difference between a first frequency band and a second frequency band, wherein the mixer output comprises a sum frequency component, and a difference frequency component;
isolating, using the filter (116), the difference frequency component by removing the sum frequency component from the mixer output, wherein the difference frequency component represents the first frequency band signal shifted to the second frequency band; and
receiving, using, the receiver of the second frequency band signal (106), the difference frequency component from the filter (116), thereby receiving the first frequency band signal using the receiver of the second frequency band signal (106).
9. The method as claimed in claim 8, wherein the method comprising, generating, using a voltage control oscillator (VCO) (114), the reference frequency signal by calculating a difference in the frequencies of the first frequency band and the second frequency band.

10. The method as claimed in claim 8, wherein the method comprising processing, using a signal processing circuit (108) that is connected to the receiver of the second frequency band signal (106), the difference frequency component to decode the information associated with the first frequency band signal.

Dated this January 6th, 2025

Arjun Karthik Bala
(IN/PA 1021)
Agent for Applicant