Small Meandered PIFA for Wireless Interrogation of Passive Sensors in a Cavity

Conference: EuCAP 2009 - 3rd European Conference on Antennas and Propagation
03/23/2009 - 03/27/2009 at Berlin, Germany

Proceedings: EuCAP 2009

Pages: 4Language: englishTyp: PDF

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Tourette, S.; Collin, G.; Thuc, P. Le; Luxey, C.; Staraj, R. (Laboratoire d’Electronique, Antennes et Télécommunications, Université de Nice-Sophia Antipolis, CNRS; 250 rue Albert Einstein, Bât. 4, 06560 Valbonne, France)
Tourette, S. (SENSeOR, Parc du "Font de l’Orme" - Lot no 3; 694, Avenue du Docteur Maurice Donat, 06250 Mougins, France)

In this paper, we present a Meandered Planar Inverted-F Antenna (MPIFA) with a small ground plane dedicated to be associated with a Surface Acoustic Wave (SAW) sensor and positioned in a cavity for temperature wireless measurements. A capacitive technique is proposed to feed the MPIFA and increase its bandwidth. The design of the antenna is presented as well as wireless interrogation results of the temperature sensor.