Capacitive top-loading of a mobile phone antenna for size reduction

Jesper Thaysen, Kaj Bjarne Jakobsen

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


Capacitive top loading for size reduction of the Planar Inverted F Antenna (PIFA) is presented in this paper. A measured 39% reduction from 1.8 to 1.22 GHz of the resonant frequency is accomplished by using a 1.1 pF distributed capacitor. The simulated –6 dB bandwidth is 9% with a peak radiation efficiency of 90%.
Original languageEnglish
Title of host publicationJINA 2004, International Symposium on Antennas
Publication date2004
Publication statusPublished - 2004


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