A 38% Tuning Range 6-GHz Fully Integrated VCO

Nobuyuki ITOH
Shin-ichiro ISHIZUKA
Kazuhiro KATOH
Yutaka SHIMIZU
Koji YONEMURA

Publication
IEICE TRANSACTIONS on Electronics   Vol.E85-C    No.8    pp.1604-1606
Publication Date: 2002/08/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section LETTER (Special Issue on High-Performance Analog Integrated Circuits)
Category: 
Keyword: 
fully integrated VCO,  SiGe,  6 GHz,  high tuning range,  

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Summary: 
A 6 GHz integrated VCO using SiGe BiCMOS process has been studied. The integrated inductors were realized by third metal with 3 µm thickness aluminum and its Q=20 at 6 GHz. The amplifier consisted of bipolar transistor. Tuning range was 38% with 0 V to 3 V tuning voltage. Phase noise of -100 dBc/Hz was obtained at 1 MHz offset from carrier frequency. The current consumption of VCO was 4.9 mA at 3 V power supply.