ScholarWorks@Soongsil University

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A high-efficiency design for 2.0-2.9 GHz 5-W GaN HEMT Class-E power amplifier using passive Q-constant non-Foster network

Nguyen, D.-A.; Seo, C.; Park, K.S.

ArticleIssue Date2020CitationMicrowave and Optical Technology Letters, v.62, no.2, pp.615 - 624PublisherJohn Wiley and Sons Inc.
High Gain Antenna Miniaturization With Parasitic Lens

Dang, Duy-Ninh; Seo, Chulhun

ArticleIssue Date2020CitationIEEE ACCESS, v.8, pp.127181 - 127189PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
마이크로스트립을 이용한 Balanced CRLH 구조를 이용한 소형화 및 광대역 대역통과 필터Go to Link

당두이닌; 오 녹 덕; 남 형 석; 오인호; 서 철 헌

ArticleIssue Date2020Citation전자공학회논문지, v.57, no.1, pp.36 - 41Publisher대한전자공학회
Low phase noise VCO using microstrip square open loop split ring resonator

Choi, J.; Jung, D.; Seo, C.

ConferenceIssue Date2008Citation2008 Asia Pacific Microwave Conference, APMC 2008ISBN9781424426423PlaceHong Kong
PBG 구조를 이용한 고선형성 Doherty 전력 증폭기 구현에 관한 연구Go to Link

이상만; 서철헌

ArticleIssue Date2005Citation전자공학회논문지 - TC, v.42, no.2, pp.81 - 86Publisher대한전자공학회
Low phase noise VCO using output matching network based on novel harmonic control circuit

Choi, J.; Seo, C.

ConferenceIssue Date2008Citation2008 Asia Pacific Microwave Conference, APMC 2008ISBN9781424426423PlaceHong Kong
Low phase noise push-push VCO using microstrip square open loop resonator and tunable negative resistance

Choi, J.; Jung, D.; Seo, C.

ConferenceIssue Date2008Citation2008 Asia Pacific Microwave Conference, APMC 2008ISBN9781424426423PlaceHong Kong
메타 구조 Broadside Coupled 나선형 공진기를 이용한 저위상 잡음 전압 제어 발진기

한경남; 서철헌

ArticleIssue Date2009Citation한국전자파학회 논문지, v.20, no.9, pp.961 - 965Publisher한국전자파학회
A novel oscillator with very low phase noise using double H-shape metamaterial resonator

Shin, D.; Lee, C.; Park, C.; Moon, Y.; Lee, J.; Seo, C.

ConferenceIssue Date2010Citation2010 Asia-Pacific Microwave Conference, APMC 2010, pp.500 - 503ISBN9784902339222PlaceYokohama
24 GHz CMOS voltage controlled oscillator based on the open loop multiple split ring resonator

Ko, S.; Kim, H.; Choi, J.; Lee, B.; Cho, J.; Seo, C.

ConferenceIssue Date2010Citation2010 Asia-Pacific Microwave Conference, APMC 2010, pp.558 - 561ISBN9784902339222PlaceYokohama
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