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A Study on dual-band Wilkinson power divider with ${\pi}$-shaped parallel stub transmission lines for WLAN  

Jo, Won-Geun (한국해양대학교 전파공학과)
Kim, Dong-Seek (한국해양대학교 전파공학과)
Ha, Dong-Ik (인트라스)
Cho, Hyung-Rae (한국해양대학교 전파공학과)
Publication Information
The Journal of The Korea Institute of Intelligent Transport Systems / v.9, no.6, 2010 , pp. 105-112 More about this Journal
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 ${\pi}$-shaped sections.
Keywords
Dual-band; wilkinson power divider; ${\pi}$-shaped; parallel stub transmission line; WLAN;
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