SMALL INDUCTOR LOADED MOBILE P...

SMALL INDUCTOR LOADED MOBILE PHONE ANTENNASMALL INDUCTOR LOADED MOBILE PHONE ANTENNA
J. Thaysen1,2 and K. B. Jakobsen1
1

Technical University of Denmark, www.dtu.dk 2 Nokia Denmark, www.nokia.com jth@oersted.dtu.dk

Abstract: In this paper a size reduction technique of the Planar Inverted-F Antenna (PIFA) is presented. Using an 18 nH lumped inductor in addition to a small 0.3 cm3 PIFA located on a 5 mm thick dielectric foam above a 40 × 100 mm2 ground plane it is possible to reduce the resonant frequency by 33 % for a fixed physical size. The measured