caa a22 4500 477124119 CHVBK 20180405111644.0 cr unu---uuuuu 170330e19970401xx s 000 0 eng 10.1007/BF02677948 doi (NATIONALLICENCE)springer-10.1007/BF02677948 Thermistor controlled gunn oscillator at Ka-band [Elektronische Daten] [R. Dixit, Bani Hazra, A. Kush] Frequency drift of Gunn oscillators is a major cause of concern in most of the Millimeter wave communication systems. This paper describes a simple and cost effective technique to arrest the frequency drift of a Ka band Gunn oscillator within 15 MHz for the operating temperature range of 0°C to 60°C as against a typical drift of about 50 to 100 MHz for free running Gunn oscillator for the same temperature range. At the ambient, the oscillator remains within ±1 MHz from switching on to stabilization. The temperature variation is sensed with a small thermistor bead placed close to the diode and a correction voltage is applied to the bias to compensate for the frequency drift. This compensation circuit also takes into account the non-linear behaviour of the thermistor and the Gunn oscillator with the temperature. Plenum Publishing Corporation, 1997 Dixit R. Defence Electronics Applications Laboratory, Raipur Road, 248 001, Dehradun aut Hazra Bani Defence Electronics Applications Laboratory, Raipur Road, 248 001, Dehradun aut Kush A. Defence Electronics Applications Laboratory, Raipur Road, 248 001, Dehradun aut International Journal of Infrared and Millimeter Waves Kluwer Academic Publishers-Plenum Publishers 18/4(1997-04-01), 859-864 0195-9271 18:4<859 1997 18 10762 https://doi.org/10.1007/BF02677948 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02677948 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dixit R. Defence Electronics Applications Laboratory, Raipur Road, 248 001, Dehradun aut NATIONALLICENCE 700 1- Hazra Bani Defence Electronics Applications Laboratory, Raipur Road, 248 001, Dehradun aut NATIONALLICENCE 700 1- Kush A. Defence Electronics Applications Laboratory, Raipur Road, 248 001, Dehradun aut NATIONALLICENCE 773 0- International Journal of Infrared and Millimeter Waves Kluwer Academic Publishers-Plenum Publishers 18/4(1997-04-01), 859-864 0195-9271 18:4<859 1997 18 10762 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer