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Design and Characterization of a Low Profile Miniaturized UHF PIFA for Compact Wireless Sensor Nodes

: Ohnimus, F.; Erxleben, R.; Tschoban, C.; Ndip, I.; Niedermayer, M.; Scholtz, H.; Bonim, T.; Guttowski, S.; Lang, K.-D.

DOI: 10.1109/LAPC.2010.5666160

	Loughborough Antennas and Propagation Conference, LAPC 2010. Conference proceedings : 8 - 9 November 2010, Burleigh Court Conference Centre, Loughborough University, UK New York, NY: IEEE, 2010 ISBN: 978-1-4244-7305-2 ISBN: 978-1-4244-7304-5 pp.257-260
	Loughborough Antennas and Propagation Conference (LAPC) <6, 2010, Loughborough>

	English
	Conference Paper
	Fraunhofer IZM ()

Abstract
In this work, a miniaturized planar inverted-F antenna (PIFA) with low profile on a small ground plane is designed and characterized for integration in a compact autarkic wireless sensor node. The physical size of the antenna is 24 mm x 11 mm x 3 mm (0.07λ x 0.03λ x 0.01λ) including the small ground plane and operates in the UHF band at 868 MHz with a -10 dB impedance bandwidth of 9 MHz. The antenna gain is -12 dBi. The resonance frequency and input impedance can be easily tuned by altering the meander length and shorting post position, respectively. Simulation and measurement results are presented.

: http://publica.fraunhofer.de/documents/N-154004.html