Physics
Scientific paper
Sep 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991ppmto..10..229x&link_type=abstract
Publ. Purple Mt. Obs., Vol. 10, No. 3, p. 229 - 236
Physics
Scientific paper
A W-band phase-locked Gunn oscillator has been developed for using as a local oscillator for Purple Mountain Observatory 13.7 m millimeter-wave radio telescope. Two kinds of Gunn oscillators and the harmonic mixer of the PLO system are constructed. The operating range is 40 GHz and the output power is greater than 5 mW over its operating range. The output signal of servo amplifier in PLO controls the bias voltage of Gunn oscillator to phase lock the Gunn oscillator over more than 100 MHz tuning range.
Chen Shanhuai
Din Zhugao
Li Min
Lue Xun
Shi Shengcai
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