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

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

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...

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Veröffentlicht in:Microwave and optical technology letters 2013-06, Vol.55 (6), p.1328-1331
Hauptverfasser: Wei, Kai, Lee, Moon-Que
Format: Artikel
Sprache:eng
Schlagworte:
180° hybrids
baluns
coupled lines
in-phase power dividers
miniaturization
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Zusammenfassung: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
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.27592