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A compact branch‐line coupler using defected ground structures
Author(s) -
MaddahAli Mohsen,
Dalili Oskouei Hamid,
Forooraghi Keyvan
Publication year - 2008
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.23118
Subject(s) - microwave , rat race coupler , line (geometry) , hybrid coupler , electrical engineering , reduction (mathematics) , engineering , materials science , optoelectronics , telecommunications , power dividers and directional couplers , geometry , mathematics
A compact branch‐line coupler (BLC) with a size reduction of about 70% of a conventional BLC has been introduced. The coupler has been designed using a defected ground structure (DGS). No bonding wire or via holes have been used. The simulation results have been verified by measurement with good agreement. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 386–389, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23118