Description:
FORM 2

THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENT RULES, 2003

Complete Specification
(See section 10 and rule 13)

1.Title of the Invention :

ANTENNA ARRAY PANELS ON A CYLINDRICAL SURFACE SUITED FOR A POD TO REALIZE ASOJ, ASPJ OR RWR

2. Applicant Name : Big Bang Boom Solutions Private Limited

Nationality : Indian

Address : KG Pinnacle, 9th Floor, Gandhi Street, Adambakkam, Chennai 600088

3. Preamble to the Description :
The following specification particularly describes the invention and the manner in which it is to be performed.

DESCRIPTION

1. Field of Invention:
The novel antenna arrangement, comprising antenna array panels on a cylindrical surface, could be utilized for implementing an Active Electronically Scanned Array (AESA) specifically for deployment within a pod. Typical applications where the AESA could be deployed include an airborne-standoff jammer (ASOJ), an airborne self-protect jammer (ASPJ), and a radar warning receiver (RWR).

2. Background of the Invention
Various jamming systems and techniques have been developed in electronic warfare. These systems are designed to disrupt or deceive adversarial RF sources, such as RADAR, to protect aircraft from detection or targeting. Existing jamming systems often rely on a single centralized unit for emitting jamming signals, limiting their effectiveness and coverage.
Some prior art jamming systems employ planar or monopole antennas for emitting jamming signals. These antennas are typically used individually or in small arrays and provide limited coverage and functionality. Additionally, previous jamming systems may be unable to selectively jam or deceive specific threats based on their mode of operation or angle of arrival (AoA).
Other related prior art includes jamming systems that employ multiple antennas and arrays for enhanced coverage and interference. However, these systems can only sometimes accurately determine the precise AoA of the threat or provide simultaneous surveillance and jamming capabilities.
Furthermore, existing jamming systems may consume significant power and need more efficiency in terms of power utilization, limiting their operational capabilities and endurance. In summary, while there are prior art solutions addressing jamming and deception techniques, there remains a need for a more effective, versatile, and efficient jamming system that provides enhanced coverage, accurate threat detection, and mode-specific jamming or deception capabilities.

BRIEF SUMMARY OF THE INVENTION
A novel jammer design is being described that consists of two pods, each placed under one wing of an aircraft. The jammer is built using a cylindrical mast that is placed within the pod. The frequency of operation for the jammer ranges from 0.5 GHz to 18 GHz and is split into four bands named band 1, band 2, band 3, and band 4. Each band is divided into 18 channels, with channel 10 being 500 MHz wide, and the remaining channels being 1 GHz wide. The channels are logical collections of antennas forming one antenna array and are associated with one RF beam. There are two types of channels, surveillance, and tracking/jamming, with 18 channels of each type per pod. The antennas used for the broadside array are planar, while the antennas used for the end-fire array are monopoles with a bandwidth of 1 GHz. The planar antenna dimensions vary from 7.5 cm by 7.5 cm to 1.5 cm by 1.5 cm, while the base dimensions of the monopole antenna do not exceed 1.5 cm by 1.5 cm. The host cylinder of the pod has a dimension of 240 cm in length and 45 cm in diameter and is divided into six regions.

The system includes multiple non-planar arrays, a front array, a rear array, and various bands for different channels. The non-planar arrays provide 120 degrees of azimuth coverage for subbands 2, 3, and 4, while the front and rear arrays provide coverage for all channels in the direction of flight and opposite the direction of flight, respectively. The five arrays together provide overlapping coverage of 480 degrees and mutually exclusive coverage of 360 degrees for all four bands. The power consumption of one pod is 10 kW, and the system is designed to provide a J/S greater than 20 dB. The effective radiated power and antenna array gain vary for the different bands but exceeds 70 dBm implying that the jamming range is 400 km.

The system operates by simultaneously listening for signals on multiple frequencies and then checking these signals for threat signatures, such as RADAR signatures. If a threat signature is detected, the system checks whether the RADAR is in search or track mode and selects either a deception or jamming mode accordingly. The system then uses the track beam to determine the precise angle-of-arrival (AoA) of the threat and uses either an interferometric algorithm or the angle of the fine beam to improve the AoA measurement.
If the chosen mode is jamming, the system transmits a continuous RF signal towards the adversarial RF source in cooperation with the coarse beam module that tracks the source. The Jamming is stopped when the surveillance beam module signals the end of RF transmission from the adversarial RF source. If the chosen mode is deception, the system uses the track beam to transmit echo signals towards the adversarial RF source, with sufficient J/S to create deception in the angle, velocity, or range of the threat. The surveillance beam module continues to track the adversarial RF source in both jamming and deception modes.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a three-dimensional view of Jammer and Pod
Fig. 2 is a three-dimensional view illustrating the podded architecture
Fig. 3 is a perspective view of the host cylinder
Fig. 4 is a front view of host cylinder
Fig. 5 is a fragmentary three-dimensional view of the host cylinder showing the transceiver housing unit
Fig. 6 is a two-dimensional layout of Antennae in Non Planar Array 3
Fig. 7 is a two-dimensional layout of Antennae in Non Planar Array 1
Fig. 8 is a two-dimensional layout of Antennae in Front Panel
Fig. 9 is a two-dimensional layout of Antennae in Rear Panel
Fig. 10 is a three-dimensional view showing the azimuth coverage by one pod

DETAILED DESCRIPTION OF THE INVENTION

A. Overview

1. The antenna array panel that we have conceived overcomes the below challenges.
1. Provide an azimuth coverage of 360 degrees.
2. Provide tracking and jamming of up to 18 targets simultaneously.
3. Provide a wide frequency range of operation from 0.5 GHz to 18 GHz.
4. Provide jamming of medium power radars located up to a distance of 400 km.
5. Capable of being airborne. Hence, a typical airborne payload's size, weight, and power constraints must be satisfied.
6. Render minimal alteration to the aircraft structure.

B. Overall construction

2. The jammer is conceived using a cylindrical mast 1 and placed within a pod 2.

3. There are two pods, one placed under the right wing 3 and the other under the left wing 4.

C. Bands and channels

4. The frequency of operation is from 0.5 GHz to 18 GHz.
5. The operating frequency is split into bands.
6. The bands are named band 1, band 2, band 3, and band 4.
7. The frequency of operation of band 1 is from 0.5 GHz to 1.5 GHz.
8. The frequency of operation of band 2 is from 1.5 GHz to 4.5 GHz.
9. The frequency of operation of band 3 is from 4.5 GHz to 10 GHz.
10. The frequency of operation of band 4 is from 10 GHz to 18 GHz.
11. The entire band is divided into 18 channels.
12. Each channel is 1 GHz wide except for channel ten which is 500 MHz wide.
13. A channel is a logical collection of antennas forming one antenna array.
14. A channel is associated with one RF beam.
15. The number of channels limits the maximum number of targets detected or tracked simultaneously.
16. The channel allocation is presented below.
17. Channel 1 is 0.5 GHz to 1.5 GHz.
18. Channel 2 is 1.5 GHz to 2.5 GHz.
19. Channel 3 is 2.5 GHz to 3.5 GHz.
20. Channel 4 is 3.5 GHz to 4.5 GHz.
21. Channel 5 is 4.5 GHz to 5.5 GHz.
22. Channel 6 is 5.5 GHz to 6.5 GHz.
23. Channel 7 is 6.5 GHz to 7.5 GHz.
24. Channel 8 is 7.5 GHz to 8.5 GHz.
25. Channel 9 is 8.5 GHz to 9.5 GHz.
26. Channel 10 is 9.5 GHz to 10 GHz.
27. Channel 11 is 10 GHz to 11 GHz.
28. Channel 12 is 11 GHz to 12 GHz.
29. Channel 13 is 12 GHz to 13 GHz.
30. Channel 14 is 13 GHz to 14 GHz.
31. Channel 15 is 14 GHz to 15 GHz.
32. Channel 16 is 15 GHz to 16 GHz.
33. Channel 17 is 16 GHz to 17 GHz.
34. Channel 18 is 17 GHz to 18 GHz.
35. There are two types of channels, namely surveillance and tracking/jamming.
36. Surveillance channels are receive-only arrays, while tracking/jamming channels are transceiver arrays.
37. There are a total of 18 surveillance channels and a total of 18 tracking/jamming channels per pod.
38. Two types of arrays are utilized: the broadside Array and the end-fire Array.
39. In a broadside array, the radio wave propagates perpendicular to the surface of the Array. In contrast, the radio wave propagates parallel to the array surface in an end-fire array.
40. The antennas used for the broadside Array are planar. The bandwidth of each planar antenna in a band is greater than or equal to its band's bandwidth.
41. The antennas used for the end-fire Array are monopoles with a bandwidth of 1 GHz.
42. Band 1 and band 2 has both broadside and end-fire arrays, while bands 3 and 4 have only broadside arrays.
43. Band 1 is further divided into sub-band1 and sub-band 2.
44. The sub-band 1 ranges from 0.5 GHz to 1 GHz (named channel 1a).
45. The sub-band 2 ranges from 1 GHz to 1.5 GHz (named channel 1b).

D. Antenna dimension

46. The planar antenna dimension for the sub-band 2 broadside Array is 7.5 cm by 7.5 cm.
47. The planar antenna dimension for the band-2 broadside Array is 4 cm by 4 cm.
48. The planar antenna dimension for the band-3 broadside Array is 3 cm by 3 cm.
49. The planar antenna dimension for the band-4 broadside Array is 1.5 cm by 1.5 cm.
50. The base dimension of a monopole antenna of an end-fire array does not exceed 1.5 cm by 1.5 cm.

E. External structure of host cylinder

51. The antenna arrays are located on the surface of the host cylinder of dimension 240 cm in length and 45 cm in diameter.
52. The host cylinder forms the core of the pod.
53. The host cylinder surface is divided into six regions: Non-Planar Array 1 5, Non-Planar Array 2 6, Non-Planar Array 3 7, Front Array 8, Rear Array 9, and an empty panel 10.
54. The dimension of the rectangular boundary Non-Planar Array 1 is 32 cm 22 by 240 cm 26.
55. The dimension of the rectangular boundary Non-Planar Array 2 is 32 cm by 240 cm.
56. The dimension of the rectangular boundary Non-Planar Array 3 is 32 cm 15 by 240 cm 16.
57. The diameter of the circular boundary of the Front Array is 45 cm.
58. The diameter of the circular boundary of the Rear Array is 45 cm.
59. The dimension of the empty panel is 32 cm by 240 cm.
60. While Non-Planar Array 1, Non-Planar Array 3, Front Array, and Rear Array host broadside arrays, Non-Planar Array 2 hosts an end-fire array.
61. Each antenna is placed on an outer surface of a transceiver housing unit (THU).
62. The THU 11,13,14 projects out of the cylinder's surface and has a projection length of 15 cm 12. The size of the THU's base is the same as that of the antenna dimension for a broadside array.
63. The length and breadth of THU's base of an end-fire array is 5 cm by 5 cm.
64. A THU can host either a surveillance antenna or a tracking antenna.
65. When the THU hosts a surveillance antenna, then the THU accommodates an RF transceiver module and a low noise amplifier (LNA).
66. When the THU hosts a tracking antenna, then the THU accommodates an RF transceiver module, a power amplifier, and a low noise amplifier (LNA).
67. Surveillance channels 2,3 and 4, located on Non-Planar Array 3, have 40 antennas each 17.
68. Tracking channels 2,3 and 4, located on Non-Planar Array 3, have 64 antennas each 18.
69. The tracking beams produced by channels 2,3, and 4 have been found through MATLAB simulation to have a beamwidth of 6 degrees by 6 degrees.
70. Surveillance channels 5 to 10, located on Non-Planar Array 3, have 15 antennas each 19.
71. Tracking channels 5 to 10, located on Non-Planar Array 3, has 34 antennas each 20.
72. The tracking beams produced by channels 5 to 10 have been found through MATLAB simulation to have a beamwidth of 9 degrees by 9 degrees.
73. Surveillance channels 11 to 18, located on Non-Planar Array 1, have 48 antennas each 21 23.
74. Tracking channels 11 to 18, located on Non-Planar Array 1, have 112 antennas each 22 24.
75. Surveillance channel 1b located on Non-Planar Array 1 have 36 antennas 25.
76. The surveillance beams produced by channels 1a have been found through MATLAB simulation to have a beamwidth of 9 degrees by 9 degrees.
77. The tracking beams produced by channels 11 to 18 have been found through MATLAB simulation to have a beamwidth of 5 degrees by 5 degrees.
78. Surveillance channel 1, located on Non-Planar Array 2, has 18 antennas.
79. Tracking channel 1, located on Non-Planar Array 2, has 30 antennas.
80. Surveillance channel 2, located on Non-Planar Array 2, has 54 antennas.
81. Tracking channel 2, located on Non-Planar Array 2, has 90 antennas.
82. Surveillance channels 2 and 4 on Front Array have 18 antennas each 35.
83. Surveillance channels 2 and 4 on Front Array can be reconfigured either as channels 3 and 4 or 2 and 3.
84. Surveillance channels 5, 6, and 7 on Front Array have 15 antennas each 33
85. Tracking channels 5, 6, and 7 on Front Array have 35 antennas each 34
86. The tracking beams produced by channels 5,6 and 7 have been found through MATLAB simulation to have a beamwidth of 9 degrees by 9 degrees.
87. Surveillance channels 5,6 and 7 can be reconfigured as channels 8,9, and 10, respectively.
88. When channels 5,6, and 7 are configured on the left-winged pod Front Array, channels 8, 9, and 10 are on the right-winged pod Front Array.
89. When channels 8,9, and 10 are configured on the left-winged pod Front Array, channels 5, 6, and 7 are on the right-winged pod Front Array.
90. Surveillance channels 11, 13, 15, and 17 on Front Array have 32 antennas each 36.
91. Tracking channels 11, 13, 15, and 17 on Front Array have 94 antennas each 37.
92. The tracking beams produced by channels 11, 13, 15, and 17 have been found through MATLAB simulation to have a beamwidth of 9 degrees by 9 degrees.
93. When channels 11, 13, 15, and 17 are configured on the left-winged pod Front Array, channels 12, 14, 16, and 18 are on the right-winged pod Front Array.
94. When channels 12, 14, 16, and 18 are configured on the left-winged pod Front Array, channels 11, 13, 15, and 17 are on the right-winged pod Front Array.
95. Surveillance channels 2 and 4 on Rear Array have 18 antennas each 35.
96. Surveillance channels 2 and 4 on Rear Array can be reconfigured either as channels 3 and 4 or 2 and 3.
97. Surveillance channels 5, 6, and 7 on Rear Array have 15 antennas each 33.
98. Tracking channels 5, 6, and 7 on Rear Array have 35 antennas each 34.
99. The tracking beams produced by channels 5,6 and 7 have been found through MATLAB simulation to have a beamwidth of 9 degrees by 9 degrees.
100. Surveillance channels 5,6 and 7 can be reconfigured as channels 8,9, and 10, respectively.
101. When channels 5,6, and 7 are configured on the left-winged pod Rear Array, channels 8, 9, and 10 are on the right-winged pod Rear Array.
102. When channels 8,9, and 10 are configured on the left-winged pod Rear Array, channels 5, 6, and 7 are on the right-winged pod Rear Array.
103. Surveillance channels 11, 13, 15, and 17 on Rear Array have 32 antennas each 36.
104. Tracking channels 11, 13, 15, and 17 on Rear Array have 94 antennas each 37.
105. The tracking beams produced by channels 11, 13, 15, and 17 have been found through MATLAB simulation to have a beamwidth of 9 degrees by 9 degrees.
106. When channels 11, 13, 15, and 17 are configured on the left-winged pod Rear Array, channels 12, 14, 16, and 18 are on the right-winged pod Rear Array.
107. When channels 12, 14, 16, and 18 are configured on the left-winged pod Rear Array, channels 11, 13, 15, and 17 are on the right-winged pod Rear Array.
108. In summary
1. Non-planar array 1 supports channel 1b, 11, 12, 13, 14, 15, 16, 17 and 18.
2. Non-planar array 2 supports channel 1,2,3 and 4.
3. Non-planar array 3 supports channel 2,3,4,5,6,7,8,9 and 10.
4. Front array supports channel 2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17 and 18.
5. Rear array supports channel 2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17 and 18.

F. 360 degree azimuth coverage

109. The Non Planar Array 1 of one pod, say the left-winged pod, provides an azimuth coverage of 120 degrees for subband-2 (of Band 1) and band 4 towards the left or right of the direction of flight 38.
110. Therefore the Non Planar Array 1 of both pods provides an azimuth coverage of 120 degrees towards the left and the right of the direction of flight for subband-2 (of Band 1) and band 4 if the arrays are placed in opposite directions, i.e., if either of the below conditions is satisfied:
1. Non Planar Array 1 of both the wings face each other (kept inwards)
2. Non-Planar Array 1 of both the wings face away from each (outwards)
111. The Non Planar Array 3 of one pod, say the left-winged pod, provides an azimuth coverage of 120 degrees for bands 2 and 3 towards the left or right of the direction of flight 39.
112. Therefore the Non Planar Array 3 of both pods provides an azimuth coverage of 120 degrees towards the left and the right of the direction of flight for band 2 and band 3 if the arrays are placed in opposite directions, i.e., if either of the below conditions is satisfied:
1. Non Planar Array 3 of both the wings face each other (kept inwards)
2. Non-Planar Array 3 of both the wings face away from each (outwards)
113. The Front Array of one pod, say the left-winged pod, provides an azimuth coverage of 120 degrees for 50 % of channels of band 2 (only surveillance), band 3, and band 4 40.
114. The Front Array of the other pod provides an azimuth coverage of 120 degrees for the remaining 50 % of channels of band 2 (only surveillance), band 3, and band 4.
115. Therefore the Front Array of both pods provides azimuth coverage of 120 degrees for all the channels of bands 2 (only surveillance), 3, and 4 in the direction of flight.
116. The Rear Array of one pod, say the left-winged pod, provides an azimuth coverage of 120 degrees for 50 % of channels of band 2 (only surveillance), band 3, and band 4 41.
117. The Rear Array of the other pod provides an azimuth coverage of 120 degrees for the remaining 50 % of channels of band 2 (only surveillance), band 3, and band 4.
118. Therefore the Rear Array of both pods provides azimuth coverage of 120 degrees for all the channels of bands 2 (only surveillance), 3, and 4 in the direction opposite to the flight.
119. The Non Planar Array 2 of one pod, say the left-winged pod, provides an azimuth coverage of 120 degrees for subband-1 (of Band 1), subband-2(of Band 1, only tracking), and 50% of channels of band 2 towards and opposite to the direction of flight 42.
120. The Non Planar Array 2 of the other pod, the right-winged pod, provides an azimuth coverage of 120 degrees for subband-1 (of Band 1),subband-2(of Band 1, only tracking), and 50% of the remaining channels of band 2 towards and opposite to the direction of flight.
121. Therefore the Non Planar Array 1 of both pods provides an azimuth coverage of 120 degrees towards and opposite to the direction of flight for subband-1 (of Band 1), subband-2(of Band 1, only tracking), and band 2.
122. To summarize, the five arrays provide a overlapped azimuth coverage of 480 degrees for all the bands 1, 2, 3 and 4, effectively providing a mutually exclusive coverage of 360 degrees for all the bands 1,2 3 and 4.
I. Functionality
123. The system listens for RF signals of different frequencies (0.5 to 18 GHz) simultaneously on all its surveillance beams.
124. Surveillance beam is steered back and forth through the azimuth of 120 deg and elevation of 60 deg
125. Received RF signals with power levels above a preset threshold is checked for threat signatures (RADAR) signatures (frequency, PRI, pulse width, waveform modulation).
126. RF signals flagged as matching a RADAR signature, is further checked for type of RADAR operation, namely, search or track mode of operation (target radar beam width, antenna scan revisit time).
127. If mode of operation is search, deception mode is chosen else Jamming mode is chosen.
128. The track beam channel produces a track beam and scans through the angle returned by surveillance beam. The precise angle-of-arrival (AoA) measurements of threat bearing is determined using the track beam.
129. Rx signal SNR is high – phases of signal detected on sub-array elements + interferometric algorithm is used for improving AoA
130. Rx signal SNR is low – angle of fine beam is AoA
131. The surveillance beam keeps tracking the adversarial RF source if the chosen mode of operation is Jamming
132. Based on the received signal strength, an appropriate Jamming power to Signal (J/S) power ratio is computed.
133. If Jamming mode is selected RF energy is continuously transmitted using the track beam directed towards the adversarial RF source in co-operation with the coarse beam module that tracks the adversarial RF source. The Jamming is stopped when the surveillance beam module signals the end of RF transmission from the adversarial RF source.
134. If deception mode is chosen employing the track beam in the direction returned by the direction finder - angle, velocity or range deception echo signals (with sufficient J/S) is transmitted towards the adversarial RF source.

, Claims:CLAIMS
We Claim :
1. An antenna array panel for airborne standoff jammer(ASOJ), airborne self protect jammer (ASPJ) and with a frequency of operation between 0.5 GHz and 18 GHz comprising:
two identical cylindrical masts, each such mast placed within a pod and mounted under the body of a flying object;
said cylindrical mast divided into six regions for a 180 degree azimuth coverage and including Non-Planar Array 1 5, Non-Planar Array 2 6, Non-Planar Array 3 7, Front Array 8, Rear Array 9, and an empty panel 10 and densely packed with miniaturized antennae on the outer surface of the cylindrical mast;
each antenna mounted on an outer surface of a transceiver housing unit (THU), said THU 11,13,14 projects out of the cylinder's surface and has a projection length of about 15 cm 12;
multiple non-planar arrays, a front array, a rear array, and various bands for different channels;
wherein the operating frequency range ( 0.5 GHz to 18 GHz) is split into four bands being band-1, band-2, band-3 and band-4 and each said band divided into 18 channels with each channel being atleast one GHz wide;
wherein channels are logical collections of antennas forming one antenna array and are associated with one RF beam.

2. The antenna array panel for airborne standoff jammer(ASOJ), airborne self protect jammer (ASPJ) as claimed in claim 1, wherein, there are planar arrays and non-planar arrays and include two types of channels, surveillance, and tracking/jamming, with 18 channels of each type per pod; wherein one non-planar array is configured as end-fire array and the other non-planar arrays and planar arrays are broadside arrays.

3. The antenna array panel for airborne standoff jammer(ASOJ), airborne self protect jammer (ASPJ) as claimed in claim 1, wherein the antennas used for the broadside array are planar, while the antennas used for the end-fire array are monopoles with a bandwidth of 1 GHz each and said planar antenna dimensions vary from 7.5 cm by 7.5 cm to 1.5 cm by 1.5 cm, while the base dimensions of the monopole antenna do not exceed 1.5 cm by 1.5 cm.

4. The antenna array panel for airborne standoff jammer(ASOJ), airborne self protect jammer (ASPJ) as claimed in claim 1, wherein, the non-planar arrays provide 120 degrees of azimuth coverage for subbands 2, 3, and 4, while the front and rear arrays provide coverage for all channels in the direction of flight and opposite the direction of flight, respectively and all the five arrays together provide overlapping coverage of 480 degrees and mutually exclusive coverage of 360 degrees for all four bands.

5. The antenna array panel for airborne standoff jammer(ASOJ), airborne self protect jammer (ASPJ) as claimed in claim 1, wherein the power consumption of one pod is 10 kW, and the system is configured to provide a J/S greater than 20 dB and wherein the effective radiated power and antenna array gain exceeds 70 dBm thereby providing jamming range of about 400 km.

6. The antenna array panel for airborne standoff jammer(ASOJ), airborne self protect jammer (ASPJ) as claimed in claim 1, wherein the frequency of operation of band 1 is from 0.5 GHz t 1.5 GHz, frequency of operation of band 2 is from 1.5 GHz to 4.5 GHz, frequency of operation of band 3 is from 4.5 GHz to 10 GHz, frequency of operation of band 4 is from 10 GHz to 18 GHz, and each such band is divided into 18 channels and each said channel is 1 GHz wide except for channel ten which is 500 MHz wide.

7. The antenna array panel for airborne standoff jammer(ASOJ), airborne self protect jammer (ASPJ) as claimed in claim 1, wherein front arrays have the least structural dimensions and therefore the channels of a band in these arrays are configured to operate 50 % of channels in the front array of one pod and the remaining 50 % in the other pod's front array.

8. The antenna array panel for airborne standoff jammer(ASOJ), airborne self protect jammer (ASPJ) as claimed in claim 1, wherein rear arrays have the least structural dimensions and therefore the channels of a band in these arrays are configured to operate 50 % of channels in the rear array of one pod and the remaining 50 % in the other pod's rear array.

9. The antenna array panel for airborne standoff jammer(ASOJ), airborne self protect jammer (ASPJ) as claimed in claim 1, wherein, the arrays in each of the cylindrical mast are arranged such the cylindrical mast can be interchanged between the pods, whereby, a single model of the cylindrical mast can function correctly in either pod.

10. The antenna array panel for airborne standoff jammer(ASOJ), airborne self protect jammer (ASPJ) as claimed in claim 6, wherein, Band 1 is divided into sub-band 1 and sub-band 2 with respective ranges of 0.5 GHz to 1 GHz and 1 GHz to 1.5 GHz for optimum utilization of space and effective coverage at lower frequencies.

Dated this the 01st September 2023

Senthil Kumar B
Agent for the applicant
IN/PA-1549