A Low Phase Noise Microwave Oscillator Using Split Ring Resonators

Author

Jung, Jinse ; Cho, Choon Sik ; Lee, Jae W. ; Kim, Tae Hwan ; Tae Hwan

Author_Institution

Sch. of Electron., Telecommun. & Comput. Eng., Hankuk Aviation Univ., Goyang

fYear

2006

fDate

10-15 Sept. 2006

Firstpage

95

Lastpage

98

Abstract

The split ring resonators (SRRs) are utilized to implement a microwave oscillator in this paper. Since the SRRs provide a sharp band reject characteristic, a high Q-factor is realizable for microwave oscillators. Several identical SRRs are simultaneously employed to obtain as large as high reflection coefficient as possible which generates the oscillation condition incorporated with a microwave transistor. The output power is obtained as 10.6 dBm at 5.2 GHz with 2.0 V DC supply and 18 mA current consumption. Due to the sharp performance of the resonators, the phase noise is observed excellently around -115 dBc/Hz at 1 MHz offset. DC-RF conversion efficiency is measured 30.7 % and the figure of merit is 178.72 dB. Since further miniaturization of the resonators is possible adjusting the proposed configuration, this kind of oscillator can easily be adapted to the MMIC fabrication

Keywords

microstrip resonators; microwave oscillators; phase noise; 18 mA; 2.0 V; 5.2 GHz; DC-RF conversion efficiency; Q-factor; high reflection coefficient; low phase noise microwave oscillator; microwave transistor; sharp band reject characteristic; split ring resonators; Acoustic reflection; High power microwave generation; Microwave generation; Microwave oscillators; Microwave transistors; Optical ring resonators; Phase noise; Power generation; Q factor; Ring oscillators; SRRs; microwave oscillator; phase noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2006. 36th European

Conference_Location

Manchester

Print_ISBN

2-9600551-6-0

Type

conf

DOI

10.1109/EUMC.2006.281208

Filename

4057755