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The Journal of The Korea Institute of Intelligent Transport Systems Vol.9 No.6 pp.105-112

π-형 병렬 스터브 전송선로를 이용한 WLAN용 이중대역 Wilkinson 전력 분배기에 대한 연구

조원근,김동식,하동익,조형래

A Study on dual-band Wilkinson power divider with π-shaped parallel stub transmission lines for WLAN

Won-Geun Jo,Dong-Seek Kim,Dong-Ik Ha,Hyung-Rae Cho

Abstract

Recently, wireless communication systems have been developed and the circuits which operate with the broad-band for multiband uses were introduced. However, broad-band circuits have problems that inevitably increase the size. Dual-band circuit operates only two frequency, therefore, it will be able to miniaturize through unnecessary decreased elements. The Wilkinson power divider is the one of the most commonly used components in wireless communication system for power division. Nowaday, the Wilkinson power divider is also demanded dual-band. In this paper, I propose miniaturized dual-band Wilkinson power divider operating at 2.45 GHz and 5.2 GHz for IEEE 802.11n standard. Proposed dual-band Wilkinson power divider is used in parallel stub line. The design is accomplished by transforming the electrical length and impedance of the quarter wave sections of the conventional Wilkinson power divider into dual band -shaped sections.