A Size Reduction Technique for Mobile Phone PIFA Antennas Using Lumped Inductors

Jesper Thaysen, Kaj Bjarne Jakobsen

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

A size reduction technique for the planar inverted-F antenna (PIFA) is presented. An 18 nH lumped inductor is used in addition to a small 0.3 cm3 PIFA. The PIFA is located on dielectric foam, 5 mm above a 40 mm × 100 mm ground plane. It is possible to reduce the center frequency (|S11|min) by 33 percent for a fixed physical size. The measured – 6 dB bandwidth is 6.7 percent with a peak radiation efficiency of 88 percent.
Original languageEnglish
JournalMicrowave Journal
Pages (from-to)5
ISSN0192-6225
Publication statusPublished - 2005

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