(A) novel varactor pairs with small switchable capacitance for digitally controlled oscillator applicationsDigitally controlled oscillator를 위한 작은 캐패시턴스가 조절되는 Varactor

This thesis reports a novel varactor pairs with small switchable unit capacitance by controlling digital code word. Two discrete capacitances are determined the difference between the accumulation region capacitance and inversion region capacitance of two PMOS varactors. The reliable linear frequency control by a novel varactor pair is verified with high resolution through the implemented digitally controlled oscillator in 0.18 um CMOS process. The novel varactor pairs make much smaller switchable capacitance than those of other approaches, and hence the DCO achieves the high frequency resolution and low phase noise. Also, identical sizes of PMOS varactor make them robust from process variation.
Advisors
Yoo, Hyung-Joun (유형준)researcher
Publisher
한국과학기술원
Issue Date
2011
Identifier
467963/325007  / 020074359
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 정보통신공학과, 2011.2, [ vi, 49 p. ]

Keywords

스위치 캐패시터; 디지털 제어 varactor; Varactor; Digitally Controlled Varactor; DCO; Varactor Pairs; Switchable Capacitance

URI
http://hdl.handle.net/10203/181235
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=467963&flag=t
Appears in Collection
ICE-Theses_Master(석사논문)
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