Title :
5.8 GHz dual-polarized aperture-coupled microstrip antenna
Author :
Nambi, Subramanian ; Wentworth, Stuart M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Auburn Univ., AL, USA
Abstract :
The paper presents the design of a dual-polarized aperture-coupled microstrip patch antenna suitable for passive 5.8 GHz radio frequency identification (RFID) applications. The antenna provides two orthogonal ports with nearly 30 dB isolation and crosspolarization levels of nearly 20 dB for both ports. Using the orthogonal ports, both transmit and receive functions can be implemented on the same antenna. This type of antenna could be very useful for RFID transponders which have to receive energy from an RFID reader and send back identification information.
Keywords :
antenna radiation patterns; electromagnetic wave polarisation; microstrip antennas; radiofrequency identification; receiving antennas; transmitting antennas; 5.8 GHz; antenna radiation pattern; aperture-coupled antenna; crosspolarization; dual-polarized antenna; dual-polarized aperture-coupled microstrip patch antenna; isolated orthogonal ports; microstrip antenna; passive RFID transponder; passive radio frequency identification; receive antenna; transmit antenna; Aperture antennas; Dielectric substrates; Feeds; Microstrip antennas; Patch antennas; Radiofrequency identification; Receiving antennas; Slot antennas; Transmitting antennas; Transponders;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1551291
