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학술지 An 800-MHz LC-VCO with a Linear Control Characteristics in a 130-nm CMOS Technology
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저자
이희동, 정재호, 이광천
발행일
201308
출처
Microwave and Optical Technology Letters, v.55 no.8, pp.1972-1975
ISSN
0895-2477
출판사
John Wiley & Sons
DOI
https://dx.doi.org/10.1002/mop.27723
협약과제
12VI1700, 차세대 이동통신 서비스를 위한 다양한 셀구축 환경에 적용이 가능한 초소형 RF 단위모듈 기반 다중대역(Multi-Band) 다중모드(Multi-RAT) 기지국용 RU(Radio Unit)개발, 이광천
초록
A semilinear LC-voltage-controlled oscillator (VCO) topology is proposed. To exploit a linear frequency tuning, the LC-VCO adopts the variable capacitance block of the varactor devices and the PMOS transistors. This block has the capacitance characteristics which are approximately inversely proportional to the square of the VCO control voltage. The proposed LC-VCO is implemented in a 130-nm CMOS technology. The measurement results show a semilinear frequency range of 503-873 MHz and a phase noise of -128 dBc/Hz at 1 MHz offset frequency. Power consumption is about 2 mA from a 1.2 V supply. Copyright © 2013 Wiley Periodicals, Inc.
KSP 제안 키워드
CMOS Technology, Capacitance characteristics, Control characteristics, Frequency Range, Frequency tuning, LC voltage controlled oscillator(LC-VCO), Power Consumption, VCO Control Voltage, Variable capacitance, Voltage controlled oscillator(VCO), linear control