Title :
Metamaterial inspired electrically small patch antenna
Author :
Tamma, Venkata A. ; Wang, Tin-Ei ; Kuester, Edward F. ; Park, Wounjhang ; Holloway, Christopher L. ; Zhou, Ji
Author_Institution :
Dept. of Electr., Comput. & Energy Eng., Univ. Of Colorado at Boulder, Boulder, CO, USA
Abstract :
We present a circular patch antenna that has been miniaturized by use of a magneto-dielectric substrate composed of an array of barium strontium titanate (BST) cubes embedded in Teflon substrate. The patch diameter was reduced by 4.5 times when compared to a traditional λ/2 patch antenna radiating at the same frequency but without the magneto-dielectric substrate. Experimental results agree well with simulations and show that if matched well, the antenna can exhibit two peak gains of 7 dB and 2.7 dB at 2.347 GHz and 2.377 GHz respectively. The antenna radiates with an efficiency of 45 % at 2.435 GHz.
Keywords :
UHF antennas; antenna radiation patterns; barium compounds; metamaterial antennas; microstrip antennas; BST cube array; Teflon substrate; antenna radiation; barium strontium titanate cube array; circular small-patch antenna; frequency 2.347 GHz; frequency 2.377 GHz; frequency 2.435 GHz; gain 2.7 dB; gain 7 dB; magneto-dielectric substrate; metamaterial antenna; Antenna measurements; Arrays; Broadband antennas; Gain; Magnetic resonance; Patch antennas; metamaterial antennas; metamaterials; miniaturized antennas; patch antennas;
Conference_Titel :
Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on
Conference_Location :
Spokane, WA
Print_ISBN :
978-1-4244-9562-7
DOI :
10.1109/APS.2011.5996387
