Journal of the Korean Institute of Telematics and Electronics D (전자공학회논문지D)

The Institute of Electronics and Information Engineers (대한전자공학회)
권호 표지

Design method of stable RF power amplifiers using 3dB coupled line

3dB coupled line을 이용한 안정한 RF전력증폭기 설계방법

  • 김선욱 (서강대학교 전자공학과) ;
  • 강원태 (서강대학교 전자공학과) ;
  • 강충구 (서강대학교 전자공학과) ;
  • 장익수 (서강대학교 전자공학과)
  • Published : 1997.10.01
Download PDF
⟨ Previous Next ⟩

Abstract

A new design method of stable RF power amplifier using 3dB coupled line is proposed in this thiesis. The proposed method of broadband matching consist of resistive matching circuits at low frequency and lossless matching circuits at microwave band. This design method increase the stability of an amplifier and is suitable for interstage matching. When high power amplifier is designed using this method for PCS base transceiver station, the measured resutls show thst the gain of 18.5dB, and 9W (39.5dBm) output power. We use motorola's MRF6401 for medium power and MRF 6402 for large power and cascaded them.

Keywords