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A Compact Broadband Balun on Multilayer Organic Substrate
Author(s) -
Ta Hai Hoang,
Pham Anh Vu
Publication year - 2013
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.27670
Subject(s) - balun , return loss , insertion loss , broadband , transformer , microwave , materials science , optoelectronics , electrical engineering , amplitude , engineering , telecommunications , optics , physics , voltage , antenna (radio)
We present the design and development of a compact, broadband balun based on a quasi‐lumped LC transformer. The balun is constructed on a multilayer liquid crystal polymer substrate. The balun has a wide range of operating frequency from 0.9 to 3.6 GHz. Within this operating band, the balun achieves a measured insertion loss of less than 1 dB, a measured return loss of better than 10 dB, a measured amplitude imbalance of less than 1 dB and a measured phase imbalance less than 7°. This balun has an extremely compact size of 2 × 2.5 mm 2 . © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1957–1959, 2013