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A LOW-PHASE-NOISE CMOS VCO FOR K-BAND APPLICATION

MEI-LING YEH

Department of Electrical Engineering, National Taiwan Ocean University, Keelung 202, Taiwan, R.O.C.

Corresponding author.

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YAO-CHIAN LIN

Department of Electrical Engineering, National Taiwan Ocean University, Keelung 202, Taiwan, R.O.C.

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, and

CHUNG-CHENG CHANG

Department of Electrical Engineering, National Taiwan Ocean University, Keelung 202, Taiwan, R.O.C.

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https://doi.org/10.1142/S0218126613500400Cited by:1 (Source: Crossref)

Abstract

A new high figure-of-merit (FOM) and low-phase-noise 20.73-GHz voltage-controlled oscillator is designed for K-band applications in this paper. The capacitive feedback technique is used for the low-phase-noise VCO design. The VCO can be tuned from 20.817 GHz to 20.266 GHz. The measured phase noise is -115.57 dBc/Hz at 1 MHz offset from the carrier frequency. The corresponding FOM is calculated to be -190 dBc/Hz. The VCO is implemented with the TSMC 0.18 μm one-poly-six-metal 1.7 V mixed-signal/RF CMOS technology, and the chip size is 0.51 × 0.74 mm².

This paper was recommended by Regional Editor Krishna Shenai.

Keywords:

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