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CRITICAL COUPLING OF THE INVERTED-F ANTENNA BY INCREASING EFFECTIVE INDUCTANCE

Title
CRITICAL COUPLING OF THE INVERTED-F ANTENNA BY INCREASING EFFECTIVE INDUCTANCE
Author
김형동
Keywords
PIFA; impedance matching; critical coupling; effective inductance; mobile antenna
Issue Date
2011-04
Publisher
Wiley-Blackwell
Citation
Microwave and Optical Technology Letters, 2011, 53(4), P.737-740
Abstract
In this letter, a novel feed structure that can achieve critical coupling in a planar inverted-F antenna (PIFA) is proposed. The proposed structure considerably increases the effective inductance simply by inserting a branch capacitance between the feed line and the shorting pin of the conventional planar inverted-F antenna without structural change to the antenna or ground plane. The extremely low profile PIFA for the GSM900 band is designed to verify the proposed feed structure for critical coupling. The designed PIFA fully covers the GSM 900 band for VSWR < 3. Also, a good omnidirectional radiation pattern was obtained at its operating frequency. (C) 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53: 737-740, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25839
URI
https://onlinelibrary.wiley.com/doi/abs/10.1002/mop.25839
ISSN
0895-2477
DOI
10.1002/mop.25839
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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