Compact and wideband 180° hybrid using vertically coupled CPW balun with lumped elements | Zendy

Wei Kai | Zendy; Lee MoonQue | Zendy

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Compact and wideband 180° hybrid using vertically coupled CPW balun with lumped elements

Author(s) -

Wei Kai,

Lee MoonQue

Publication year - 2013

Publication title -

microwave and optical technology letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.304

H-Index - 76

eISSN - 1098-2760

pISSN - 0895-2477

DOI - 10.1002/mop.27592

Subject(s) - balun , wideband , power dividers and directional couplers , hybrid coupler , bandwidth (computing) , microwave , wilkinson power divider , electronic engineering , engineering , electrical engineering , fractional bandwidth , frequency divider , telecommunications , band pass filter , antenna (radio)

A new compact and wideband 180° hybrid is proposed. The proposed structure stems from the idea of converting a balun into a 180° hybrid by adding an in‐phase power divider. In order to achieve wide bandwidth and miniaturized size, a lumped power divider and a vertically coupled CPW balun with lumped elements are used. For verification, the proposed 180° hybrid is designed at 917 MHz. The measurement shows that the bandwidth of CMRR greater than 25 dB is increased by 84 % compared with that of the conventional ring hybrid. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1328–1331, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27592

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