Circularly Polarised Hexagonal Patch Antenna With Polygonal Slot for RFID Applications
Abstract
A compact single feed circularly polarized microstrip patch antenna for RFID applications is proposed. Antenna geometry includes a regular hexagon shaped patch with a polygonal slot embedded at the centre. The slot accounts for circular polarization and an area reduction of 22.5 %. It is fabricated on FR4 substrate with dielectric constant 4.4 and size 50 mm x 50 mm x 1.6 mm. The measured results include 10dB impedance bandwidth of 5.5 % at the center frequency of 2.42 GHz, a return loss of 32 dB, minimum axial ratio of 1.82 dB, axial ratio bandwidth of 7.5%, gain of 4.9 dBi with a broadside radiation characteristic for the RHCP antenna. These results are well in tune with the simulated results and the proposed design is suitable for RFID reader antenna applications.
Keywords
circularly polarized, hexagonal patch antenna, polygonal slot, RFID
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
P. K. C, V. P. V, V. R, M. Ameen and V. K, "Circularly Polarised Hexagonal Patch Antenna With Polygonal Slot for RFID Applications," in Journal of Communications Software and Systems, vol. 12, no. 2, pp. 122-128, June 2016, doi: 10.24138/jcomss.v12i2.84
@article{k-c2016circularlypolarised,
author = {Prakash K. C and Vinesh P. V and Vivek R and Mohammad Ameen and Vasudevan K},
title = {Circularly Polarised Hexagonal Patch Antenna With Polygonal Slot for RFID Applications},
journal = {Journal of Communications Software and Systems},
month = {6},
year = {2016},
volume = {12},
number = {2},
pages = {122--128},
doi = {10.24138/jcomss.v12i2.84},
url = {https://doi.org/10.24138/jcomss.v12i2.84}
}