Title
A Low Phase Noise Fbar Based Multiband Vco Design
Abstract
In this letter, design methodlogy of a low phase noise multiband film bulk acoustic resonator (FBAR) based voltage controlled oscillator (FBAR-VCO) is presented. It employs a 1.9 GHz cross-coupled FBAR-VCO core, and extends oscillation to 0.65 GHz, 0.98 GHz, 1.96 GHz and 3.92 GHz by a divider and a multiplier. By analyzing the low frequency instability and proposing the solution based on a capacitor, cross-coupled architecture is employed in 1.9 GHz FBAR-VCO core and phase noise degradation is extensively studied for extended frequencies. By considering the effect of transistors' size on the Q-factor and impedance of FBAR, excellent phase noise and high loop gain are obtained. The post-layout simulation shows the proposed multiband FBAR-VCO achieves the lowest phase noise below -150 dBc/Hz at 1 MHz offset frequency.
Year
DOI
Venue
2013
10.1587/elex.10.20130425
IEICE ELECTRONICS EXPRESS
Keywords
Field
DocType
FBAR, low phase noise, low frequency instability, multiband, VCO
Phase noise,Electronic engineering,Voltage-controlled oscillator,Electrical engineering,Physics
Journal
Volume
Issue
ISSN
10
13
1349-2543
Citations 
PageRank 
References 
1
0.43
0
Authors
8
Name
Order
Citations
PageRank
Guoqiang Zhang120.83
Abhay Kochhar231.19
Keiji Yoshida31811.48
Shuji Tanaka4174.88
Ken-ya Hashimoto5197.86
Masayoshi Esashi6117.07
Haruichi Kanaya71514.15
Ramesh K. Pokharel81814.49