Measurement of Load-Pull Performance in the Power Smith Tube Using a Tunable Varactor Matching Network

被引：0
作者：
Rezayat, Sarvin [1 ]
Baylis, Charles [1 ]
Marks, Robert J., II [1 ]
Viveiros, Ed [2 ]
机构：
[1] Baylor Univ, Waco, TX 76798 USA
[2] US Army, Res Lab, Adelphi, MD 20783 USA
来源：
PROCEEDINGS OF THE 2017 TEXAS SYMPOSIUM ON WIRELESS AND MICROWAVE CIRCUITS AND SYSTEMS (WMCS) | 2017年
关键词：
power-added efficiency; adjacent-channel power ratio; load-pull; power amplifiers; Smith Chart; optimization; adaptive radar; convex optimization; EFFICIENCY;
D O I：
暂无
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：
Future radar transmitters will require a fast reconfiguration of their radio-frequency circuitry in order to adapt to changes in operating frequency and spectral output while maintaining high power-added efficiency. In this paper, transistor load-pull measurement results are displayed in the Power Smith Tube using measurements from a tunable-varactor matching network. Measuring load-pull characteristics and plotting them in the Power Smith Tube is a preliminary step toward the implementation of the Power Smith Tube in real-time optimization using the tunable-varactor network. Visualization of the tunable-matching network load-pull results can be used as an aid in designing for optimum power-added efficiency while meeting adjacent-channel power ratio requirements.
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