A PIN diode controlled variable attenuator using a 0-dB branch-line coupler

被引：27
|
作者：
Sun, KO [1 ]
Choi, MK [1 ]
van der Weide, D [1 ]
机构：
[1] Univ Wisconsin, Dept Elect & Comp Engn, Madison, WI 53706 USA
来源：
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2005年 / 15卷 / 06期
关键词：
attenuator; distributed branch-line coupler; PIN diode controlled variable attenuator;
D O I：
10.1109/LMWC.2005.850568
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：
We describe a simple PIN diode controlled variable attenuator that employs a 0-dB branch line directional coupler. The response of the attenuator was measured between 1.3 GHz and 2.6 GHz. At the center frequency, the attenuation monotonically varied from 0.7 dB to 23 dB with the control voltage, and the distributed branch-line coupler structure resulted in low input reflection. Our attenuator is easier to design, smaller in area than a double hybrid coupled attenuator, and has comparable or better reflection and attenuation performance characteristics.
引用
收藏
页码：440 / 442
页数：3
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