Planar Inverted F Antenna Circularly Polarized for RFID applications
Résumé
This article presents a new miniature antenna for UHF RFID reader. Circular polarization and size reduction (70% than a classical patch) of the radiating element are achieved by using a single probe feed and two short circuits. The measured axial ratio bandwidth obtained with the proposed antenna is about 270 MHz (28.2%). This antenna has a total volume of 250 mm × 250 mm × 19 mm.
Mots clés
single probe feed
bandwidth 270 MHz
Antenna measurements
Bandwidth
Polarization
Microstrip antennas
Gain
Planar Inverted F Antenna (PIFA)
RFID reader antenna
UHF RFID reader
RFID applications
miniature antenna
circularly polarized planar inverted F antenna
UHF antennas
radiofrequency identification
antenna feeds
short circuits
circular polarization
size reduction
radiating element
planar inverted-F antennas