2-LEVEL POWER COMBINING USING A LENS AMPLIFIER

被引：19

作者：

SCHOENBERG, JSH ^{[1
]}

BUNDY, SC ^{[1
]}

POPOVIC, ZB ^{[1
]}

机构：

[1] UNIV COLORADO,DEPT ELECT & COMP ENGN,BOULDER,CO 80309

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 1994年 / 42卷 / 12期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1109/22.339785

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：

A two-level quasi-optical power combiner is presented. The combiner consists of a grid oscillator which feeds a transmission amplifier at its focal point. The focal-point feed improves power coupling efficiency over that of a plane-wave feed. A linear 7-element lens amplifier array demonstrates 29 dB of isolation and a 30 degrees continuous scan angle with less than 1 dB power variation at 9.7 GHz. A 24-element two-dimensional lens amplifier array fed by a grid oscillator demonstrates 5.7 dB gain and a 30 degrees scan angle with less than 2dB power variation at 10.25 GHz. When horn-fed, the 24-element lens has an isolation of 17-21 dB over a 3% bandwidth. The grid oscillator, as well as receive and transmit sections of the lens amplifiers, are each fabricated on single substrates, making monolithic millimeter-wave integration of each component possible.

引用

页码：2480 / 2485

页数：6

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