Compact optoelectronic oscillator with ultra-low phase noise performance

1999 ◽  
Vol 35 (18) ◽  
pp. 1554 ◽  
Author(s):  
Ji Yu ◽  
X.S. Yao ◽  
L. Maleki
Keyword(s):  
Phase Noise ◽  
Noise Performance ◽  
Optoelectronic Oscillator ◽  
Phase Noise Performance ◽  
Low Phase Noise

A novel complementary Colpitts differential CMOS VCO with low phase noise performance

2009 ◽  
Vol 40 (12) ◽  
pp. 1698-1704 ◽  
Author(s):  
Chien-Cheng Wei ◽  
Hsien-Chin Chiu ◽  
Yi-Tzu Yang ◽  
Jeffrey S. Fu
Keyword(s):  
Phase Noise ◽  
Noise Performance ◽  
Phase Noise Performance ◽  
Low Phase Noise

Low Phase Noise Feedback Oscillators Utilizing High-Q SIW Filter with Dielectric Loading

Frequenz ◽  
2019 ◽  
Vol 73 (1-2) ◽  
pp. 1-6
Author(s):  
Hao Zhang ◽  
Wei Kang ◽  
Wen Wu
Keyword(s):  
Phase Noise ◽  
Feedback Loop ◽  
Peak Frequency ◽  
Harmonic Suppression ◽  
Noise Performance ◽  
Lower Phase ◽  
High Q ◽  
Dielectric Loading ◽  
Phase Noise Performance ◽  
Low Phase Noise

Abstract High-Q substrate integrated waveguide (SIW) resonator and its application to low phase noise oscillators are focused in this paper. By drilling air holes in the substrate, SIW bandpass filters (BPFs) with high Q factor could be achieved. This SIW filter is embedded into the feedback loop to be treated as a frequency stabilization element in designing the oscillator. The complex quality factor (Qsc)-peak frequency of the filter is chosen as the final oscillation frequency to obtain low phase noise performance. Moreover, air boxes are utilized instead of the air holes in the substrate to design another oscillator with lower phase noise performance and good harmonic suppression. Two low phase noise oscillators based on fourth-order SIW BPFs with dielectric loading have been studied, demonstrated and fabricated to verify the design concept.

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