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A broadband microstrip Marchand balun with vertical coupling structure
Author(s) -
Nam Hee,
Yun TaeSoon,
Lee JongChul
Publication year - 2007
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.22281
Subject(s) - balun , broadband , microstrip , microwave , center frequency , bandwidth (computing) , coupling (piping) , engineering , electrical engineering , electronic engineering , physics , telecommunications , band pass filter , mechanical engineering , antenna (radio)
In this paper, a broadband microstrip Marchand balun is presented. It is implemented by new vertical coupled structure, which is suggested to improve the coupling effect in the conventional coupler. Using this vertical coupling structure, the Marchand balun shows broad bandwidth of larger than 115% at the center frequency of 2.3 GHz. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 752–755, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22281