PHASELOCK SYSTEM FOR MILLIMETER-WAVE GUNN OSCILLATORS USED IN RADIO ASTRONOMY AND LABORATORY SPECTROSCOPY

被引：5

作者：

BESTER, M

机构：

[1] Univ zu Koeln, Physikalisches Inst,, Cologne, West Ger, Univ zu Koeln, Physikalisches Inst, Cologne, West Ger

来源：

INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES | 1986年 / 7卷 / 01期

关键词：

MILLIMETER WAVES - RADIO ASTRONOMY - Equipment - SPECTROSCOPY - Equipment;

D O I：

10.1007/BF01011061

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A frequency-agile heterodyne phaselock loop (PLL) system for millimeter-wave Gunn-effect oscillators between 40 and 110 GHz is described. The Gunn oscillators are phase-locked via the bias in an active second-order servo loop. A facility for fast frequency switching with a maximum rate of 10 kHz and a frequency separation up to 80 MHz is provided. Measurements on the spectral characteristics of a phase-locked Gunn oscillator are presented. The described PLL system is used in radio astronomy and laboratory molecular spectroscopy.

引用

页码：43 / 63

页数：21

共 21 条

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