A 250 GHZ PLANAR LOW-NOISE SCHOTTKY RECEIVER

被引：2

作者：

ALIAHMAD, WY ^{[1
]}

BISHOP, WL ^{[1
]}

CROWE, TW ^{[1
]}

REBEIZ, GM ^{[1
]}

机构：

[1] UNIV VIRGINIA,DEPT ELECT ENGN,SEMICOND DEVICE LAB,CHARLOTTESVILLE,VA 22901

来源：

INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES | 1993年 / 14卷 / 04期

关键词：

D O I：

10.1007/BF02084284

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 planar quasi-optical Schottky receiver based on the quasi-integrated horn antenna has been developed and tested over the 230-280 GHz bandwidth. The receiver consists of a planar GaAs Schottky diode placed at the feed of a dipole-probe suspended on a thin dielectric membrane in an etched-pyramidal horn cavity. The diode has a 1.2 mum anode diameter and a low parasitic capacitance due to the use of an etched surface channel. The antenna-mixer results in a measured DSB conversion loss and noise temperature at 258 GHz of 7.2dB +/- 0.5dB and 1310K +/- 70K, respectively, at room temperature. The design is compatible with SIS mixers, and the low cost of fabrication and simplicity makes it ideal for submillimeter-wave imaging arrays requiring a 10-20% bandwidth.

引用

页码：737 / 748

页数：12

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