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Dual‐band branch line coupler based on composite right‐/left‐handed transmission lines with series capacitors only
Author(s) -
Park Jinsung,
Lee Yongshik
Publication year - 2010
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.25123
Subject(s) - capacitor , microstrip , microwave , electric power transmission , transmission line , electrical engineering , multi band device , engineering , composite number , series (stratigraphy) , inductor , shunt (medical) , left handed , rat race coupler , hybrid coupler , line (geometry) , electronic engineering , optoelectronics , telecommunications , materials science , voltage , physics , optics , power dividers and directional couplers , mathematics , composite material , medicine , paleontology , antenna (radio) , cardiology , biology , geometry
This article demonstrates, for the first time, a dual‐band branch line coupler based on composite right‐/left‐handed transmission lines with series capacitors only.The complete elimination of shunt inductors provides a potential for the proposed CRLH transmission lines to be applicable to high frequencies, especially without via‐holes in microstrip lines. Experimental results are in excellent agreements with the simulated results. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1046–1048, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25123