Title :
Design of low phase noise K-band Gunn oscillator by using bias filter
Author :
Kang, Sung Min ; Yoon, Mun Kyu ; Park, Sang Jin ; Koo, Kyung Heon
Author_Institution :
Dept. of Electron. Eng., Inha Univ., Inchon, South Korea
Abstract :
A K-band voltage controlled Gunn oscillator has been designed to get the improved phase noise and broad tuning range of 19.8-26.7GHz. The bias voltage of the diode has shown an important effect on the phase noise of the oscillator. For improving the phase noise, this paper used an active filter and a low pass bias choke on the cap of the diodes. The phase noise has been improved by more than 7dB at 100kHz offset from the center frequency compared to that without the bias filter and choke
Keywords :
Gunn oscillators; active filters; circuit tuning; microwave oscillators; phase noise; voltage-controlled oscillators; 19.8 to 26.7 GHz; Gunn oscillator; K-band; active filter; bias filter; center frequency; low pass bias choke; phase noise; tuning range; voltage controlled oscillator; Active filters; Diodes; Frequency; Gunn devices; Inductors; K-band; Phase noise; Tuning; Voltage control; Voltage-controlled oscillators;
Conference_Titel :
Microwave Conference, 2001. APMC 2001. 2001 Asia-Pacific
Conference_Location :
Taipei
Print_ISBN :
0-7803-7138-0
DOI :
10.1109/APMC.2001.985369
