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"Power Amplifier Linearization Using Rf Feedback"
Abstract: A power amplifier adapted to operate with simultaneous high efficiency and high linearity by using a RF feedback path to create an input predistortion signal. This power amplifier mainly includes a main amplifier (MA21), two splitters (SP21, SP31), one combiner (CO21), one subtracter (SU21), two phase shifters (PH21, PH31), one attenuator (AT21) and one error amplifier (EA21). The splitters, subtracter and combiner are designed in the form of 90-degree or quadrature hybrid couplers. A quadrature hybrid can be implemented with any lumped or transmission-line elements and has an important advantage compared to the in-phase splitter that at equal values of reflection coefficients from loads connected to the in phase and 90° phase shift terminals, the reflection wave is lacking at the main input terminal and, consequently, the input voltage standing wave ratio of a quadrature hybrid does not depend on the equal load mismatch level.
Notices, Deadlines & Correspondence
Patent Information
Applicants
ALCATEL LUCENT
Inventors
1. ANDREI GREBENNIKOV
2. FLORIAN PIVIT
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 1635-delnp-2011-Form-3-(03-08-2011).pdf | 2011-08-03 |
| 2 | 1635-delnp-2011-Correspondence Others-(03-08-2011).pdf | 2011-08-03 |
| 3 | 1635-DELNP-2011-Correspondence Others-(09-09-2011).pdf | 2011-09-09 |
| 4 | Abstract.jpg | 2011-10-20 |
| 5 | 1635-delnp-2011-GPA.pdf | 2011-10-20 |
| 6 | 1635-delnp-2011-Form-5.pdf | 2011-10-20 |
| 7 | 1635-delnp-2011-Form-3.pdf | 2011-10-20 |
| 8 | 1635-delnp-2011-Form-2.pdf | 2011-10-20 |
| 9 | 1635-delnp-2011-Form-18.pdf | 2011-10-20 |
| 10 | 1635-delnp-2011-Form-1.pdf | 2011-10-20 |
| 11 | 1635-delnp-2011-Drawings.pdf | 2011-10-20 |
| 12 | 1635-delnp-2011-Description (Complete).pdf | 2011-10-20 |
| 13 | 1635-delnp-2011-Correspondence-others.pdf | 2011-10-20 |
| 14 | 1635-delnp-2011-Claims.pdf | 2011-10-20 |
| 15 | 1635-delnp-2011-Abstract.pdf | 2011-10-20 |
| 16 | 1635-delnp-2011-Form-3-(21-06-2013).pdf | 2013-06-21 |
| 17 | 1635-delnp-2011-Correspondence Others-(21-06-2013).pdf | 2013-06-21 |
| 18 | 1635-DELNP-2011-Form-3-(18-02-2014).pdf | 2014-02-18 |
| 19 | 1635-DELNP-2011-Correspondence-Others-(18-02-2014).pdf | 2014-02-18 |
| 20 | 1635-DELNP-2011-FER.pdf | 2017-03-21 |
| 21 | 1635-DELNP-2011-Proof of Right (MANDATORY) [19-09-2017(online)].pdf | 2017-09-19 |
| 22 | 1635-DELNP-2011-PETITION UNDER RULE 137 [19-09-2017(online)].pdf | 2017-09-19 |
| 23 | 1635-DELNP-2011-Retyped Pages under Rule 14(1) (MANDATORY) [20-09-2017(online)].pdf | 2017-09-20 |
| 24 | 1635-DELNP-2011-OTHERS [20-09-2017(online)].pdf | 2017-09-20 |
| 25 | 1635-DELNP-2011-FORM 3 [20-09-2017(online)].pdf | 2017-09-20 |
| 26 | 1635-DELNP-2011-FER_SER_REPLY [20-09-2017(online)].pdf | 2017-09-20 |
| 27 | 1635-DELNP-2011-DRAWING [20-09-2017(online)].pdf | 2017-09-20 |
| 28 | 1635-DELNP-2011-COMPLETE SPECIFICATION [20-09-2017(online)].pdf | 2017-09-20 |
| 29 | 1635-DELNP-2011-2. Marked Copy under Rule 14(2) (MANDATORY) [20-09-2017(online)].pdf | 2017-09-20 |
| 30 | 1635-DELNP-2011-OTHERS-200917.pdf | 2017-09-22 |
| 31 | 1635-DELNP-2011-Correspondence-200917.pdf | 2017-09-22 |
| 32 | 1635-DELNP-2011-FORM 3 [23-04-2018(online)].pdf | 2018-04-23 |
| 33 | 1635-DELNP-2011-FORM 3 [23-04-2018(online)]-1.pdf | 2018-04-23 |
| 34 | 1635-DELNP-2011-PETITION UNDER RULE 137 [31-07-2019(online)].pdf | 2019-07-31 |
| 35 | 1635-DELNP-2011-PatentCertificate05-08-2019.pdf | 2019-08-05 |
| 36 | 1635-DELNP-2011-IntimationOfGrant05-08-2019.pdf | 2019-08-05 |
Search Strategy
| 1 | SearchStrategy_16-02-2017.pdf |