Title :
A novel multi-element fractal PIFA with wide pattern coverage for 915 MHz RFID wireless sensors
Author :
Bhuiyan, R.H. ; Dougal, R. ; Ali, M.
Author_Institution :
Dept. of EE, Univ. of South Carolina, Columbia, SC, USA
Abstract :
The performance of a single-element PIFA and a multi-element PIFA are studied and compared to determine their suitability in RFID sensor tags for placement on rotating platforms. Each antenna operates in the 915 MHz frequency band and occupies a maximum area of 90 by 90 sq. mm. It is demonstrated that using the multi-element PIFA in place of the single-element PIFA, 33.33% bandwidth enhancement and superior radiation pattern coverage can be obtained.
Keywords :
UHF antennas; antenna radiation patterns; planar inverted-F antennas; radiofrequency identification; wireless sensor networks; RFID sensor tag; frequency 915 MHz; multielement fractal PIFA; planar inverted-F antenna; single-element PIFA; wide radiation pattern coverage; wireless sensor network; Antenna radiation patterns; Bandwidth; Dipole antennas; Feeds; Fractals; Microstrip antennas; RFID tags; Radiofrequency identification; Transponders; Wireless sensor networks;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2009. APSURSI '09. IEEE
Conference_Location :
Charleston, SC
Print_ISBN :
978-1-4244-3647-7
DOI :
10.1109/APS.2009.5171703
