Fundamental design principle of harmonic oscillator = 고조파 발진기 설계의 기초 원리

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A general model of harmonic oscillator is presented. Based on this model, several sources of power loss in harmonic oscillator can be identified. To optimize the output power, fundamental design principle of harmonic oscillator is also presented. Applying this design principle can help to eliminate power losses and effectively increase the output power and DC-to-RF efficiency of harmonic oscillator. A push-push transformer-based oscillator (TBO) topology is adopted as high-power sub-terahertz source in this work. Theoretically, this topology can generate the highest possible harmonic power from a certain transistor. Using 65-nm CMOS technology, a 261 GHz push-push transformer-based oscillator is fabricated. Measurement result shows an output power of -4.7 dBm can be achieved by this oscillator while drawing 15 mA from 1.2 V supply. As the result, this work demonstrates the highest DC-to-RF efficiency among state-of-the-art oscillator around 250 GHz.
Advisors
Lee, Sang-Gugresearcher이상국researcher
Description
한국과학기술원 :전기및전자공학부,
Publisher
한국과학기술원
Issue Date
2016
Identifier
325007
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 전기및전자공학부, 2016.8,[iv, 36 p. :]

Keywords

CMOS▼aharmonic generation principle▼aTerahertz source▼ahigh output power▼atransformer-based oscillator; CMOS▼a고조파 생성 원리▼a테라헤르츠 발생기▼a고출력▼a트랜스포머 기반 발진기

URI
http://hdl.handle.net/10203/266887
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=849924&flag=dissertation
Appears in Collection
EE-Theses_Master(석사논문)
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