Title :
Design and characterization of a low profile miniaturized UHF PIFA for compact wireless sensor nodes
Author :
Ohnimus, Florian ; Erxleben, Robert ; Tschoban, Christian ; Ndip, Ivan ; Niedermayer, Michael ; Scholtz, Hendrik ; Bonim, Thomas ; Guttowski, Stephan ; Lang, Klaus-Dieter
Author_Institution :
Berlin Inst. of Technol., Tech. Univ. Berlin, Berlin, Germany
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 × 11 mm × 3 mm (0.07λ × 0.03λ × 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.
Keywords :
UHF antennas; planar inverted-F antennas; wireless sensor networks; UHF band; autarkic wireless sensor node; compact wireless sensor nodes; frequency 868 MHz; low profile miniaturized UHF PIFA; miniaturized planar inverted-F antenna; size 11 mm; size 24 mm; size 3 mm; Antenna measurements; Loaded antennas; Resonant frequency; Wireless communication; Wireless sensor networks;
Conference_Titel :
Antennas and Propagation Conference (LAPC), 2010 Loughborough
Conference_Location :
Loughborough
Print_ISBN :
978-1-4244-7304-5
DOI :
10.1109/LAPC.2010.5666160
