A K-band monolithic broadband low phase noise voltage controlled oscillators using HBT-HEMT cascode topology

2013 ◽  
Author(s):  
Shu-Yan Huang ◽  
Chih-Chun Shen ◽  
Yu-Cheng Liu ◽  
Yen-Han Liao ◽  
Hong-Yeh Chang ◽  
...  
Keyword(s):  
Phase Noise ◽  
Noise Voltage ◽  
Voltage Controlled Oscillators ◽  
Low Phase Noise ◽  
K Band

A novel biasing technique for low phase noise voltage controlled oscillators

2018 ◽  
Vol 72 ◽  
pp. 120-125
Author(s):  
Ihsan F.I. Albittar ◽  
Hakan Dogan ◽  
Mehmet T. Ozgun
Keyword(s):  
Phase Noise ◽  
Noise Voltage ◽  
Voltage Controlled Oscillators ◽  
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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