Title :
A voltage controlled dielectric resonator oscillator with frequency doubler for wireless CATV
Author :
Ryu, K.K. ; Ji, H.K. ; Jang, J.H. ; Lee, Y.D. ; Min, H.K. ; Oh, E.D. ; Hong, U.S.
Author_Institution :
Dept. of Electron. & Commun. Eng., Kwangwoon Univ., Seoul, South Korea
Abstract :
A K-band (18.0-26.5 GHz) oscillator is designed and implemented by an HMIC (hybrid microwave integrated circuit), which is composed of a dielectric resonator, a GaAs MESFET, and a frequency doubler. A quarter wave length open stub is used in the frequency doubler to suppress the fundamental frequency of 12.875 GHz which is the output of the dielectric resonator oscillator and the output matching network is optimized for its second harmonic frequency of 25.75 GHz. This oscillator exhibits an output power of 0.17 dBm, a fundamental frequency suppression of -30.5 dBc, and a tuning range of 40.2 MHz.
Keywords :
community antenna television; dielectric resonator oscillators; frequency multipliers; hybrid integrated circuits; microwave integrated circuits; microwave oscillators; voltage-controlled oscillators; 12.875 GHz; 18 to 26.5 GHz; 25.75 GHz; 40.2 MHz; GaAs; HMIC; III V semiconductor; K-band oscillator; MESFET; SHF; frequency doubler; fundamental frequency suppression; hybrid microwave integrated circuit; output matching network; output power; quarter wave length open stub; second harmonic frequency; tuning range; voltage controlled dielectric resonator oscillator; wireless CATV; Dielectrics; Gallium arsenide; Hybrid integrated circuits; K-band; MESFET integrated circuits; Microwave integrated circuits; Microwave oscillators; Resonant frequency; Voltage control; Voltage-controlled oscillators;
Conference_Titel :
Communications, 1999. APCC/OECC '99. Fifth Asia-Pacific Conference on ... and Fourth Optoelectronics and Communications Conference
Conference_Location :
Beijing, China
Print_ISBN :
7-5635-0402-8
DOI :
10.1109/APCC.1999.825018
