Range Improvement in Single-Beam Phased Array Radars by Amplifier Impedance Tuning

被引：3

作者：

Rodriguez-Garcia, Pedro ^{[1
]}

Sifri, Jack ^{[2
]}

Calabrese, Caleb ^{[3
]}

Baylis, Charles ^{[3
]}

Marks, Robert J., II ^{[3
]}

机构：

[1] Raytheon, Dallas, TX 75243 USA

[2] Keysight Technol, Santa Rosa, CA USA

[3] Baylor Univ, Waco, TX 76798 USA

来源：

2021 IEEE TEXAS SYMPOSIUM ON WIRELESS AND MICROWAVE CIRCUITS AND SYSTEMS (WMCS) | 2021年

关键词：

cognitive radar; power amplifiers; radar phased array beamforming; radio spectrum management; reconfigurable circuits; ANTENNA;

D O I：

10.1109/WMCS52222.2021.9493282

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Significant radar range degradation can be incurred due to variations in antenna impedance from changing array scan angle. Element-wise reconfigurable impedance tuners can be used to optimally match the power amplifier device; however, the impedance matching can also affect the array pattern. In this paper, the effects of element-wise impedance tuning on the transmitted power and on the array pattern are studied, and an approach is recommended for the element-wise implementation of impedance tuners. Examples of impact on array pattern and transmitted power are given using simulation of a designed switched-stub impedance tuner. As a result of these experiments, guidelines are developed for the creation of real-time circuit optimization techniques in the array elements.

引用

页数：6

共 13 条

[1] Allen J, 1962, IRE Trans. on Ant. and Prop., V10, P566, DOI DOI 10.1109/TAP.1962.1137903
[2] [Anonymous], 2010, ANTENNA ARRAYS COMPU, DOI 10.1002/9780470937464.ch1
[3] Baylis C, 2019, IEEE INT SYMP ELEC, P448, DOI [10.1109/ISEMC.2019.8825209, 10.1109/isemc.2019.8825209]
[4] Calabrese C, 2020, 2020 IEEE INTERNATIONAL RADAR CONFERENCE (RADAR), P94, DOI [10.1109/RADAR42522.2020.9114834, 10.1109/radar42522.2020.9114834]
[5] An RF electronically controlled impedance tuning network design and its application to an antenna input impedance automatic matching system
de Mingo, J
Valdovinos, A
Crespo, A
Navarro, D
García, P
[J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2004, 52 (02) : 489 - 497
[6] A New Method for Matching Network Adaptive Control
Gu, Qizheng
Morris, Arthur S., III
[J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2013, 61 (01) : 587 - 595
[7] Luther J. J., 2011, Proceedings of the 2011 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, P3291, DOI 10.1109/APS.2011.5997238
[8] WIDE-ANGLE IMPEDANCE MATCHING OF A PLANAR ARRAY ANTENNA BY A DIELECTRIC SHEET
MAGILL, EG
WHEELER, HA
[J]. IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 1966, AP14 (01) : 49 - &
[9] An intelligently controlled RF power amplifier with a reconfigurable MEMS-varactor tuner
Qiao, DJ
Molfino, R
Lardizabal, SM
Pillans, B
Asbeck, PM
Jerinic, G
[J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2005, 53 (03) : 1089 - 1095
[10] An Electronically Tunable High-Power Impedance Tuner With Integrated Closed-Loop Control
Semnani, Abbas
Abu Khater, Mohammad
Wu, Yu-Chen
Peroulis, Dimitrios
[J]. IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2017, 27 (08) : 754 - 756

← 1 2 →