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Broadband coupled‐line balun on a defected ground structure
Author(s) -
Kim M.
Publication year - 2012
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.27120
Subject(s) - balun , broadband , microstrip , microwave , insertion loss , bandwidth (computing) , common mode signal , electrical engineering , engineering , materials science , topology (electrical circuits) , optoelectronics , electronic engineering , telecommunications , digital signal processing , antenna (radio) , analog signal
A novel microstrip balun topology based on common‐mode rejection is introduced. The balun is constructed with a short section of coupled line placed above a defected ground structure. Measurements on a PCB sample indicate a successful conversion from single end to differential mode showing 0.7 dB of insertion loss at 3 GHz along with 1‐dB bandwidth that extends from 0.7 to 5.6 GHz. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2575–2577, 2012; this online at wileyonlinelibrary.com. DOI 10.1002/mop.27120