Design of low phase-noise voltage-controlled oscillator using tunable evanescent-mode cavity

2014 ◽  
Author(s):  
Yuhao Liu ◽  
Akash Anand ◽  
Xiaoguang Liu
Keyword(s):  
Phase Noise ◽  
Noise Voltage ◽  
Voltage Controlled Oscillator ◽  
Evanescent Mode ◽  
Low Phase Noise

An 11 GHz low‐phase‐noise voltage‐controlled oscillator

2012 ◽  
Vol 29 (2) ◽  
pp. 90-95 ◽  
Author(s):  
Mei‐Ling Yeh ◽  
Yao‐Chian Lin ◽  
Wei‐Chieh Chang
Keyword(s):  
Phase Noise ◽  
Noise Voltage ◽  
Voltage Controlled Oscillator ◽  
Low Phase Noise

scholarly journals K-Band Low Phase Noise VCO Based on Q-Boosted Switched Inductor

Electronics ◽  
2019 ◽  
Vol 8 (10) ◽  
pp. 1132 ◽  
Author(s):  
Zhe Chen ◽  
Ji-Xin Chen ◽  
Pinpin Yan ◽  
Debin Hou ◽  
Fang Zhu
Keyword(s):  
Resonance Frequency ◽  
Phase Noise ◽  
Quality Factor ◽  
Eddy Current ◽  
Noise Voltage ◽  
Secondary Coil ◽  
Voltage Controlled Oscillator ◽  
Bicmos Process ◽  
Low Phase Noise ◽  
K Band

In this article, the development of the K-band low phase noise voltage-controlled oscillator (VCO) based on Q-boosted switched inductor is presented. Compared with the conventional switched inductor, the eddy current will be decreased using a 2-turn secondary coil, and then the dissipated power from the switch on-resistance will also be decreased, leading to a boosted inductor Q at switch ON-state. The equivalent inductance, quality factor, and self-resonance frequency at switch ON/OFF states are analyzed and derived. For comparison, K-band VCOs have been designed and fabricated in a 130nm BiCMOS process with the Q-boosted and conventional switched inductors. Measured results show that the phase noise has been typically improved by 2–5dB at 100 kHz and 1 MHz offset at switch ON-state, using the Q-boosted switched inductor.

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