Title :
A circularly polarized square slot antenna for wireless applications
Author :
Rezaeieh, Sasan Ahdi ; Abbak, Mehmet ; Akdum, Ibrahim
Author_Institution :
Istanbul Tech. Univ., Istanbul, Turkey
Abstract :
A new design of a single layer coplanar waveguide (CPW)-fed, circularly polarized square slot antenna with a fork shape feedline is presented. By choosing proper dimensions of the feedline and grounded patch elements, two orthogonal resonant modes with 90°phase difference for circular polarization (CP) operation can be excited. Predicted results are validated through experiments. The measured 3dB axial ratio bandwidth is 36% (2112-3056 MHz) for lower band I and 9% (5292-5837 MHz) for band II. Also total measured impedance bandwidth is 7810MHz. The peak gain of the antenna is measured as 4.35 dBi.
Keywords :
antenna feeds; microwave antennas; radio networks; slot antennas; CPW-fed; circular polarized square slot antenna; fork shape feedline; frequency 5292 MHz to 5837 MHz; gain 3 dB; wireless applications; Antenna feeds; Antenna measurements; Bandwidth; Broadband antennas; Shape; Slot antennas; circular polarization; compact antenna; multiband antenna;
Conference_Titel :
Telecommunications Forum (TELFOR), 2011 19th
Conference_Location :
Belgrade
Print_ISBN :
978-1-4577-1499-3
DOI :
10.1109/TELFOR.2011.6143704
