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IPI feeding structure for the gain improvement of IFA  

Oh, Kyu-Jong (Dept. of Health Administration, Gachon University of Medicine and Science)
Son, Tae-Ho (Dept. of Infocom Engineering, Soonchunhyang University)
Publication Information
Journal of Advanced Navigation Technology / v.14, no.6, 2010 , pp. 817-823 More about this Journal
Abstract
Design of IPI feeding structure affecting the antenna gain improvement of mobile phone was investigated. IPI feeder which based on the T matching theory increase line current for internal antenna such as IFA. So IPI feeder makes higher radiation resistance, and also increases the gain with increasing radiation efficiency. To verify IPI feeding effect, feeder is applied to conventional CDMA/DCS dual band IFA. Measurement shows that IPI-IFA has 0.5 ~ 1.4[dBi] higher gain than conventional IFA at CDMA/DCS band. Resonant frequency did not change.
Keywords
Inverted PI(IPI); IFA; IPI-IFA; Internal antenna;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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