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W-CDMA 단말기용 고효율 다중 모드 Balanced 전력증폭기
A Highly Efficient Multi-Mode Balanced Power Amplifierfor W-CDMA Handset Applications
- 김운하;
- 박성환;
- 박홍종;
- 권영우;
- 김정현
초록
A highly efficient multi-mode balanced power amplifier(PA) structure is proposed for W-CDMA handset applications. The proposed PA has 2-stage amplifier configuration and the stage-bypass and load impedance switching techniques were applied to enhance power efficiency at medium power level as well as low output power level. Using the two techniques, four highly efficient power modes were realized. To demonstrate the usefulness of the proposed structure, a GaAs HBT balanced PA module was designed, fabricated, and measured.
키워드
Balanced Power Amplifier; Efficiency; Load Insensitive; Load Mismatch; MMIC; W-CDMA
- 제목
- W-CDMA 단말기용 고효율 다중 모드 Balanced 전력증폭기
- 제목 (타언어)
- A Highly Efficient Multi-Mode Balanced Power Amplifierfor W-CDMA Handset Applications
- 저자
- 김운하; 박성환; 박홍종; 권영우; 김정현
- 발행일
- 2012-05
- 저널명
- 한국전자파학회 논문지
- 권
- 23
- 호
- 5
- 페이지
- 606 ~ 612
- 언어
- KOR
- 출판사
- 한국전자파학회
- 발행국가
- 대한민국
- 분량
- 7 페이지
- ISSN
- E 2288-226X
P 1226-3133