DocumentCode :
1889351
Title :
Self-diplexed antenna based on metamaterials for RFID application
Author :
Ugarte-Mufioz, E. ; Herraiz-Martinez, Francisco Javier ; GonzaJez-Posadaa, V. ; Segovia-Vargas, Daniel
Author_Institution :
Dept. of Signal Theor. & Commun., Carlos III Univ. of Madrid, Madrid
fYear :
2007
fDate :
24-26 Sept. 2007
Firstpage :
1
Lastpage :
4
Abstract :
In this paper a self-diplexed antenna is proposed for a RFID transponder application. The development cycle is divided into two stages: antenna design and filters design. The antenna is based on a square microstrip patch filled with metamaterial structures. The inclusion of these structures allows simultaneous operation over several frequencies, which can be arbitrarily chosen. The antenna working frequencies are chosen to be 2.45 GHz (receiver) and 1.45 GHz (transmitter). In addition, the antenna is fed through two orthogonal coupled microstrip lines, which provides high isolation between both ports (> 20 dB). Some filters based on left-handed particles are coupled to the antenna feeding microstrip lines have been included to avoid undesired interferences. This approach avoids using of an external filter or diplexer, providing high size reduction and a compact self-diplexed antenna.
Keywords :
antenna feeds; metamaterials; microstrip antennas; microstrip filters; microstrip lines; multiplexing equipment; radiofrequency identification; transponders; RFID transponder application; filter design; frequency 1.45 GHz; frequency 2.45 GHz; metamaterial; orthogonal coupled microstrip line; self-diplexed antenna design; square microstrip patch antenna feed; Antenna feeds; Filters; Frequency; Metamaterials; Microstrip antennas; Radiofrequency identification; Receiving antennas; Transmitters; Transmitting antennas; Transponders;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Applied Electromagnetics and Communications, 2007. ICECom 2007. 19th International Conference on
Conference_Location :
Dubrovnik
Print_ISBN :
978-953-6037-50-6
Electronic_ISBN :
978-953-6037-51-3
Type :
conf
DOI :
10.1109/ICECOM.2007.4544449
Filename :
4544449
Link To Document :
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