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Design of Compact Circularly Polarized RFID Antenna for Gain Optimization


Nithiba.P , PB college of engineering ; Srinivasan.S, PB college of engineering


RFID, high permittivity, high gain dielectric substrate, circularly polarized antenna


Radio Frequency Identification (RFID) systems have been widely used in industries due to its various advantages. The RFID systems demand low cost and low profile antennas. Circularly polarized truncated corner square patch antennas offer a potential solution for many applications. It becomes popular and widely used because of its ease of analysis and fabrication, low cost, light weight, easy to feed and their attractive radiation characteristics. In this project, a single feed patch antenna has been designed for RFID applications by involving parametric study. The size of the proposed antenna is reduced by employing a dielectric substrate with high permittivity. The single feed truncated corner circularly polarized antenna is designed and simulated on Ansys HFSS simulation software at 2 to 5 GHz with a high gain, return loss and also with better bandwidth. As a vital and integrated part of the radio-frequency identification (RFID) system, RFID antennas have been received much attention over years, and their design is very urgent and significant. In fact, the development of RFID antenna is of theoretical significance and practical value for the RFID system. A circularly polarized corner truncated antenna is very simple in construction when compared to conventional Microstrip fabrication technique.

Other Details

Paper ID: IJSRDV3I30782
Published in: Volume : 3, Issue : 3
Publication Date: 01/06/2015
Page(s): 1171-1175

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