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HTS Cavity and Low Phase Noise Oscillator for Radar Application

Hong LI, Tiefeng SHI, Aisheng HE, Chunguang LI, Zhonglin GONG, Zhengfang FAN, Tiejun LIU, Yusheng HE

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Summary :

A stabilized local oscillator is one of the key components for any radar system, especially for a Doppler radar in detecting slowly moving targets. Based on hybrid semiconductor/superconductor circuitry, the HTS local oscillator produces stable, low noise performance superior to that achieved with conventional technology. The device combines a high Q HTS sapphire cavity resonator (f=5.6 GHz) with a C-band low noise GsAs HEMT amplifier. The phase noise of the oscillator, measured by a HP 3048A noise measurement system, is -134 dBc/Hz at 10 kHz offset at 77 K.

Publication
IEICE TRANSACTIONS on Electronics Vol.E85-C No.3 pp.700-703
Publication Date
2002/03/01
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Issue on Superconductive Electronics)
Category
Microwave Devices and Systems

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