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A Low-Voltage 6-GHz-Band CMOS Monolithic LC-Tank VCO Using a Tuning-Range Switching Technique
Akihiro YAMAGISHI Tsuneo TSUKAHARA Mitsuru HARADA Junichi KODATE
Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Vol.E84-A
No.2
pp.559-562 Publication Date: 2001/02/01 Online ISSN:
DOI: Print ISSN: 0916-8508 Type of Manuscript: Special Section LETTER (Special Section on Analog Circuit Techniques Supporting the System LSI Era) Category: Keyword: voltage-controlled oscillator, wireless, CMOS, SIMOX, phase noise,
Full Text: PDF(463.4KB)>>
Summary:
A low-voltage 6-GHz-band monolithic LC-tank VCO has been fabricated using 0.2-µm CMOS/SIMOX process technology. The VCO features a tuning-range switching technique to achieve a wide tuning range. The output frequency range is between 5.71 and 6.21 GHz owing to the tuning-range switch. With the tuning-range switch on or off, the phase noise is about -100 dBc/Hz at 1-MHz offset and about -120 dBc/Hz at 10-MHz offset frequency at the supply voltage of 2 V.
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