A slotted-waveguide power amplifier for spatial power-combining applications

被引：22
|
作者：
Bashirullah, R [1 ]
Mortazawi, A [1 ]
机构：
[1] N Carolina State Univ, Dept Elect & Comp Engn, RF Elect Res Lab, Raleigh, NC 27695 USA
来源：
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2000年 / 48卷 / 07期
关键词：
amplifier; quasi-optical; slotted waveguide;
D O I：
10.1109/22.848497
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 power-amplifier array based on a slotted-waveguide power divider is presented for quasi-optical applications. The advantages of this structure are its low profile and ease of Fabrication. Furthermore, efficient heat sinking of power devices is achieved. An X-band version of the power amplifier using eight MESFET's was designed and fabricated. An output power of 14 W was obtained. At 10 GHz, the amplifier gain and power-combining efficiency were 6.7 dB and 88%, respectively. The 3-dB bandwidth for the circuit was approximately 5%, This technique has the potential to meet the increasing demand for solid-state power amplifiers used in millimeter-wave communications and radar systems.
引用
收藏
页码：1142 / 1147
页数：6
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