한국전자파학회논문지 (The Journal of Korean Institute of Electromagnetic Engineering and Science)

  • 제16권8호
  • /
  • Pages.783-789
  • /
  • 2005
  • /
  • 1226-3133(pISSN)
  • /
  • 2288-226X(eISSN)
한국전자파학회 (The Korean Institute of Electromagnetic Engineering and Science)
권호 표지

Diplexer 구조를 이용한 Dual Band 방향성 커플러

A Dual Band Directional Coupler with Feedback Compensation Using Diplexer Structure

  • 김기중 (삼성전기㈜ 중앙연구소) ;
  • 박자영 (삼성전기㈜ 중앙연구소) ;
  • 정영학 (삼성전기㈜ 중앙연구소) ;
  • 배효근 (삼성전기㈜ 중앙연구소) ;
  • 김남흥 (삼성전기㈜ 중앙연구소) ;
  • 김학선 (삼성전기㈜ 중앙연구소)
  • Kim Ki-Joong (Central R&D Institute, Samsung Electro-Mechanics Co., LTD) ;
  • Park Ja-Young (Central R&D Institute, Samsung Electro-Mechanics Co., LTD) ;
  • Jeong Young-Hak (Central R&D Institute, Samsung Electro-Mechanics Co., LTD) ;
  • Bae Hyo-Gun (Central R&D Institute, Samsung Electro-Mechanics Co., LTD) ;
  • Kim Nam-Heung (Central R&D Institute, Samsung Electro-Mechanics Co., LTD) ;
  • Kim Hak-Sun (Central R&D Institute, Samsung Electro-Mechanics Co., LTD)
  • 발행 : 2005.08.01
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초록

본 논문은 glass 기판 위에 RE IPD(Integrated Passive Device) 기술을 이용하여 dual band 방향성 커플러의 새로운 설계와 구현을 하였으며, 이러한 구조는 전력 증폭기의 출력부에 closed loop 전력 제 어용 GSM/GPRS cellular phones에 적용할 수 있다. 커플러는 방향성 향상을 위하여 보상 capacitor를 이용하였으며, 상호 밴드의 간섭을 최소화하기 위하여 새로운 방법의 필터링 구조(diplexer)를 갖는 커플러를 구현하였다.

In this paper, a novel design and implementation of a dual-band directional coupler based on RF IPD(Integrated Passive Device)-on-glass technology is proposed, which can be adopted in GSM/GPRS cellular phones for closed loop power control at the output of the power amplifier. The proposed coupler has a compensation capacitor to improve the directivity, and was designed using a new diplexing structure to minimize the cross-band isolation.

키워드

참고문헌

  1. Michael Dydyk, 'Microstrip directional couplers with ideal performance via single-element compensation', IEEE Trans. On Microwave Theory and Tech., vol. 47, no. 6, pp. 956-961, Jun. 1999 https://doi.org/10.1109/22.769332
  2. G. Schaller, 'Optimization of microstrip directional couplers withlumped capacitors', Arch. Elek. Uebertrag. Tech., vol. 31, pp. 301-307, Jul.-Aug. 1977
  3. C. Kajfez, 'Raise coupler directivity with lumped compensation', Microwaves, vol. 27, pp. 64-70, Mar. 1978
  4. M. Dydyk, 'Accurate design of microstrip directional couplers with capacitive compensation', in IEEE MIT-S Symp. Dig., pp. 581-584, May 1990