低温低噪声相控阵天线放大器

2015 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) Pub Date : 2015-08-01 DOI:10.1109/RFIT.2015.7377892

H. Kayano

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引用次数: 2

摘要

我们研制了一种用于相控阵天线的低温低噪声放大器。通过使用这种低温LNA，低噪声接收天线可以很容易地用于无线应用，如雷达系统，通信系统等。本文描述了一种具有低损耗特性和热隔离特性的RF接口的s波段低温LNA。该射频接口采用真空间隙为1mm的耦合谐振器实现，具有窄带特性。低温LNA在77 K时的噪声温度比室温时的噪声温度提高了不到1/5。

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Cryogenic low noise amplifier for phased array antenna

We have developed a cryogenic low noise amplifier (LNA) for phased array antenna. By using this cryogenic LNA, a low noise receiving antenna can be easily available for wireless applications such as radar systems, communication systems, and so on. In this paper, we describe an S-band cryogenic LNA with an RF interfaces having both low loss characteristic and thermal isolation characteristic. The RF interface is realized by coupling resonators with vacuum gap of 1 mm and also has narrow band characteristic. The noise temperature of the cryogenic LNA at 77 K was improved to less than 1/5 as compared with the noise temperature of the same LNA at room temperature.

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2015 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)

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