采用90 GHz和140 GHz低温接收模块的机载成像系统

1983 13th European Microwave Conference Pub Date : 1983-09-01 DOI:10.1109/EUMA.1983.333271

B. Vowinkel, K. Gruner, H. Suss, W. Reinert

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引用次数: 0

摘要

采用90 GHz和140 GHz低温接收模块的高分辨率机载成像系统已经开发出来。它们由肖特基势垒混频器和GaAs-FET中频放大器组成。DSB接收机噪声温度在90 GHz和140 GHz系统分别为210 K和250 K。两个前端的瞬时带宽均为2.5 GHz。介绍了一些飞行试验的结果。

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Airborne Imaging System using Cryogenic Receiver Modules at 90 and 140 GHz

A high-resolution airborne imaging system has been developed that uses cryogenic receiver modules at 90 and 140 GHz. They consist of Schottky-barrier mixers followed by GaAs-FET IF amplifiers. The DSB receiver noise temperatures are 210 K for the 90 GHz and 250 K for the 140 GHz system. The instantaneous bandwidth is 2.5 GHz for both front-ends. Results of some flight tests are presented.

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1983 13th European Microwave Conference

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