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A microwave HEMT oscillator with a directly coupled port at 4.2 K

✍ Scribed by Moon-Que Lee

Publisher
John Wiley and Sons
Year
2001
Tongue
English
Weight
193 KB
Volume
31
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

An X‐band HEMT oscillator is designed and tested at the cryogenic temperature of liquid helium. The designed oscillator has a directly coupled port in addition to an output port to obtain circuit simplicity. For the novel oscillator configuration, an analytic design formula of the feedback network is derived. The measured data at cryogenic temperature show a significantly improved phase noise and output power compared to the performance of an oscillator operating at room temperature. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 31: 159–162, 2001.

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