scholarly journals Techniques of Power Phase-Noise Optimization of 2.4 / 4.8 GHz CMOS VCO with Switched Capacitor Array Using Bondwire Inductor

2013 ◽  
Vol 3 (3) ◽  
pp. 12-21
Author(s):  
Arivazhagan P
Keyword(s):  
Phase Noise ◽  
Switched Capacitor ◽  
Noise Optimization ◽  
Capacitor Array

Noise optimization of switched-capacitor biquads

1987 ◽  
Vol 22 (3) ◽  
pp. 445-447 ◽  
Author(s):  
H. Walscharts ◽  
L. Kustermans ◽  
W.M. Sansen
Keyword(s):  
Switched Capacitor ◽  
Noise Optimization

A 1.8–2.6 GHz CMOS VCO with switched capacitor array and switched inductor array

2010 ◽  
Vol 31 (2) ◽  
pp. 025001
Author(s):  
Wang Xiaosong ◽  
Huang Shuilong ◽  
Chen Pufeng ◽  
Zhang Haiying
Keyword(s):  
Switched Capacitor ◽  
Capacitor Array

Phase noise optimization in temporal phase-shifting digital holography with partial coherence light sources and its application in quantitative cell imaging

2009 ◽  
Vol 48 (8) ◽  
pp. 1463 ◽  
Author(s):  
Christian Remmersmann ◽  
Stephan Stürwald ◽  
Björn Kemper ◽  
Patrik Langehanenberg ◽  
Gert von Bally
Keyword(s):  
Phase Noise ◽  
Digital Holography ◽  
Cell Imaging ◽  
Phase Shifting ◽  
Partial Coherence ◽  
Light Sources ◽  
Noise Optimization ◽  
Temporal Phase

scholarly journals A Design of Wide-Range and Low Phase Noise Linear Transconductance VCO with 193.76 dBc/Hz FoMT for mm-Wave 5G Transceivers

Electronics ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 935 ◽  
Author(s):  
Arash Hejazi ◽  
YoungGun Pu ◽  
Kang-Yoon Lee
Keyword(s):  
Phase Noise ◽  
Carrier Frequency ◽  
Tuning Range ◽  
Frequency Tuning ◽  
Cmos Process ◽  
Switched Capacitor ◽  
Voltage Controlled Oscillator ◽  
Wide Range ◽  
Layout Area ◽  
Low Phase Noise

This paper presents a wide-range and low phase noise mm-Wave Voltage Controlled Oscillator (VCO) based on the transconductance linearization technique. The proposed technique eliminates the deep triode region of the active part of the VCO, and lowers the noise introduced by the gm-cell. The switch sizes inside the switched capacitor bank of the VCO are optimized to minimize the resistance of the switches while keeping the wide tuning range. A new layout technique shortens the routing of the VCO outputs, and lowers the parasitic inductance and resistance of the VCO routing. The presented method prevents the reduction of the quality factor of the tank due to the long routing. The proposed VCO achieves a discrete frequency tuning range, of 14 GHz to 18 GHz, through a linear coarse and middle switched capacitor array, and offers superior phase noise performance compared to recent state-of-the-art VCO architectures. The design is implemented in a 45 nm CMOS process and occupies a layout area (including output buffers) of 0.14 mm2. The power consumption of the VCO core is 24 mW from the power supply of 0.8 V. The post-layout simulation result shows the VCO achieves the phase noise performances of −87.2 dBc/Hz and −113 dBc/Hz, at 100 kHz and 1 MHz offset frequencies from the carrier frequency of 14 GHz, respectively. In an 18 GHz carrier frequency, the results are −87.4 dBc/Hz and −110 dBc/Hz, accordingly.

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