Low phase noise oscillator based on complementary split-ring resonators loaded quarter-mode circular SIW cavity

A high Q-factor substrate integrated waveguide (SIW) cavity resonator and its application of X-band low phase noise oscillator is proposed. Complementary split-ring resonators are used to improve the Q-factor of the proposed resonator. The size of the resonator is reduced by using quarter-mode circu...

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Bibliographic Details
Published in:Electronics letters 2017-07, Vol.53 (14), p.933-935
Main Authors: Xu, Jie, Cui, Yinjie, Xu, Zhengbin, Guo, Jian, Qian, Cheng, Li, Wenyuan
Format: Article
Language:English
Subjects:
cavity resonator
cavity resonators
complementary split‐ring resonators loaded quarter‐mode circular SIW cavity
frequency 10.11 GHz
frequency 100 kHz
harmonic rejection
microwave oscillators
Microwave technology
phase noise
quarter‐mode circular SIW cavity
Q‐factor
Q‐factor substrate integrated waveguide
substrate integrated waveguides
X‐band low phase noise oscillator
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Summary:A high Q-factor substrate integrated waveguide (SIW) cavity resonator and its application of X-band low phase noise oscillator is proposed. Complementary split-ring resonators are used to improve the Q-factor of the proposed resonator. The size of the resonator is reduced by using quarter-mode circular SIW cavity. The oscillator based on the proposed SIW cavity resonator can be easily designed and tested. Measured results demonstrate an output frequency of 10.11 GHz and a phase noise of −108.7 dBc/Hz at 100 kHz offset. The oscillator is also able to deliver an output power of 4.6 dBm and harmonic rejection of better than 30 dBc. The proposed oscillator is suitable for low-cost high-frequency systems.
ISSN:0013-5194
1350-911X
1350-911X
DOI:10.1049/el.2017.1829