A 100-ELEMENT PLANAR SCHOTTKY DIODE GRID MIXER

被引:18
作者
HACKER, JB
WEIKLE, RM
KIM, M
DELISIO, MP
RUTLEDGE, DB
机构
[1] Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA
基金
美国国家科学基金会; 加拿大自然科学与工程研究理事会;
关键词
D O I
10.1109/22.121732
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
In this work we present a Schottky diode grid mixer suitable for mixing or detecting quasi-optical signals. The mixer is a planar bow-tie grid structure periodically loaded with diodes. A simple transmission line model is used to predict the reflection coefficient of the grid to a normally incident plane wave. The grid mixer power handling and dynamic range scales as the number of devices in the grid. A 10 GHz 100-element grid mixer has shown an improvement in dynamic range of 16.3 to 19.8 dB over an equivalent single-diode mixer. The conversion loss and noise figure of the grid are equal to that of a conventional mixer. The quasi-optical coupling of the input signals makes the grid mixer suitable for millimeter-wave and submillimeter-wave applications by eliminating waveguide sidewall losses and machining difficulties. The planar property of the grid potentially allows thousands of devices to be integrated monolithically.
引用
收藏
页码:557 / 562
页数:6
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