A compact-size microstrip spiral resonator and its application to microwave oscillator

This letter presents a compact size microstrip spiral resonator and its application to a low phase noise oscillator. This resonator has stopband characteristics to be used in the series feedback oscillator topology. The whole circuit area of the proposed resonator is within 1/10 wavelength, which re...

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Bibliographic Details
Published in:IEEE microwave and wireless components letters 2002-10, Vol.12 (10), p.375-377
Main Authors: Lee, Young-Taek, Lim, Jong-Sik, Kim, Chul-Soo, Ahn, Dal, Nam, Sangwook
Format: Article
Language:English
Subjects:
Applied sciences
Circuit properties
Circuits
Cost engineering
Costs
Coupling circuits
Electric, optical and optoelectronic circuits
Electronics
Equivalent circuits
Exact sciences and technology
Laboratories
Microstrip resonators
Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits
Microwave oscillators
Microwaves
MMICs
Noise
Oscillators
Phase noise
Q factor
Resonators
Spirals
Wavelengths
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Summary:This letter presents a compact size microstrip spiral resonator and its application to a low phase noise oscillator. This resonator has stopband characteristics to be used in the series feedback oscillator topology. The whole circuit area of the proposed resonator is within 1/10 wavelength, which results in the reduction of the circuit area and cost. A 10-GHz oscillator incorporated with this resonator was designed, fabricated and measured. It shows low phase noise performance of -95.4-dBc/Hz at 100 kHz offset.
ISSN:1531-1309
2771-957X
1558-1764
2771-9588
DOI:10.1109/LMWC.2002.804556