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To compact ring branch‐line coupler using nonuniform transmission line
Author(s) -
Hosseini F.,
Hosseini M. KhalajAmir,
Yazdany M.
Publication year - 2009
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.24703
Subject(s) - microwave , transmission line , electric power transmission , line (geometry) , wireless , hybrid coupler , electrical engineering , transmission (telecommunications) , ring (chemistry) , microwave transmission , function (biology) , electronic engineering , physics , telecommunications , engineering , power dividers and directional couplers , mathematics , geometry , chemistry , organic chemistry , evolutionary biology , biology
A compact ring Branch‐Line Coupler (BLC) with size reduction of about 50%(in circuit area) of conventional BLCs at frequency 2 GHz is introduced. The coupler is designed by using nonuniform transmission lines (NTL) instead of Uniform Transmission Lines in each arm. The normalized width w (z)/h function of the NTLs is expanded in a truncated Fourier series. The reduced size couplers are potential building blocks for the growing wireless communication markets. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2679–2682, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24703
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