논문 국내 국제전문학술지(SCI급) An Integrated Low-loss Lumped-element Quadrature Coupler Using a Distributed Model
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2020-06
- 저자명 이동호,Ahn, H (Ahn, Hyunjin),Nam, I (Nam, Ilku),Lee, O (Lee, Ockgoo)
- 학술지명 JOURNAL OF SEMICONDUCTOR TECHNOLOGY AND SCIENCE
- 발행처명 IEEK PUBLICATION CENTER
- 발행국가 국내
- 논문언어 외국어
- 전체저자수 4
홈페이지논문 초록 (Abstract)
This paper presents a distributed model of a lumped-element quadrature coupler that accounts for the distributed nature of parasitic elements. The required capacitors in the constitution of lumped-element quadrature couplers can be properly considered using the proposed distributed model. An integrated low loss lumped-element quadrature coupler is implemented using the proposed model. The modeled responses are compared with the corresponding measured responses; they exhibit good agreement. The measured insertion loss for both direct and coupled ports is 3.23 dB at 5.5 GHz. The variation in the insertion loss is +/- 0.3 dB with a phase imbalance of less than 0.95 degrees across a 760-MHz bandwidth.