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Micro balun design and fabrication at 910 MHz and mobile RFID reader miniaturization thereby
Author(s) -
Kim JongCheol,
Jung JinWoo,
Roh HyoungHwan,
Park JunSeok
Publication year - 2008
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.23617
Subject(s) - balun , miniaturization , ultra high frequency , electrical engineering , microwave , return loss , engineering , fabrication , electronic engineering , telecommunications , antenna (radio) , medicine , alternative medicine , pathology
Abstract This article represents a microchip balun for UHF mobile RFID system at 910 MHz. This balun is designed by transforming coupled transmission lines into lumped‐element equivalent circuit, and thus monolithic elements that are fabricated by IPD technology replace it for entirely miniaturized size. The corresponding balun performs under 3 dB return loss, with nearly 176 (176.42) degree of phase difference characteristic; therefore, this meets the UHF mobile RFID reader system consideration. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 2203–2206, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23617