A Tunable Wideband Frequency Synthesizer Using LC-VCO and Mixer for Reconfigurable Radio Transceivers
2011 ◽
Vol 2011
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pp. 1-7
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This paper proposes a novel wideband LC-based voltage-controlled oscillator (VCO) for multistandard transceivers. The proposed VCO has a core LC-VCO and a tuning-range extension circuit, which consists of switches, a mixer, dividers, and variable gain combiners with a spurious rejection technique. The experimental results exhibit 0.98 to 6.6 GHz continuous frequency tuning with −206 dBc/Hz of FoMT, which is fabricated by using a 0.18 μm CMOS process. The frequency tuning range (FTR) is 149%, and the chip area is 800 μm × 540 μm.
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2012 ◽
Vol 256-259
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pp. 2373-2378
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2019 ◽
Vol 28
(07)
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pp. 1950122
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2018 ◽
Vol 6
(8)
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pp. 53
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2018 ◽
Vol 27
(10)
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pp. 1850158
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