Broadband spatially combined amplifier array using tapered slot transitions in waveguide

被引：36
作者：
Alexanian, A
York, RA
机构：
[1] Department of Electrical Engineering, Univ. of California at Santa Barbara, Santa Barbara
来源：
IEEE MICROWAVE AND GUIDED WAVE LETTERS | 1997年 / 7卷 / 02期
基金：
美国国家科学基金会;
关键词：
power amplifiers; spatial power combining; tapered slot antennas; waveguide transitions;
D O I：
10.1109/75.553053
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：
Most reported spatially combined or quasioptical amplifier arrays exhibit resonant narrowband performance (<10%) and have not addressed thermal management issues, We report a waveguide-based spatial combining scheme using broadband tapered-slot transitions, capable of realizing full waveguide band coverage (40% fractional bandwidth) with good thermal properties, An X-band prototype using eight medium-power GaAs monolithic microwave integrated circuits (MMIC's) produced an output power of 2.4 W and 9-dB power gain at 1-dB compression, with a combining efficiency of 68% and <+/-1-dB gain variation over the full waveguide band (8-12 GHz).
引用
收藏
页码：42 / 44
页数：3
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