A Fast Impedance Tuner Implementation in a Cognitive Radar for Synchronous Real-Time Optimization in a Congested Environment

被引：2

作者：

Roessler, Justin ^{[1
]}

Egbert, Austin ^{[1
]}

Van Hoosier, Trevor ^{[1
]}

Seguin, Sarah ^{[1
]}

Martone, Anthony ^{[2
]}

Baylis, Charles ^{[1
]}

Marks, Robert J., II ^{[1
]}

机构：

[1] Baylor Univ, Waco, TX 76706 USA

[2] DEVCOM Army Res Lab, Adelphi, MD USA

来源：

2022 IEEE/MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM (IMS 2022) | 2022年

关键词：

tunable circuits and devices; impedance matching; diode lasers; semiconductor switches; cognitive radar; electric components;

D O I：

10.1109/IMS37962.2022.9865597

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：

As S-Band frequencies continue to be reallocated for sharing with wireless communications, radar systems are forced to operate in a spectrum that is becoming increasingly congested and contested. Based on other spectrum users, cognitive radar systems must quickly react, change operating frequency, and reconfigure for best performance to share successfully. A real-time impedance tuner is implemented within a software-defined radar (SDRadar) system demonstrated here for maximizing transmitter output power (and transmission range) in real time when changing frequencies to share spectrum. The SDRadar and reconfigurable impedance tuner are shown to achieve up to 46 percent improvement in range, with synchronous reconfiguration accomplished in less than 10 ms. Considering recent and parallel developments in high-power, quickly reconfigurable impedance tuners, it is becoming apparent that power handling, speed, and performance improvements are expected to revolutionize adaptive radar transmission.

引用

页码：645 / 648

页数：4

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