Title :
A novel metamaterial CRLH ZOR circular patch antenna capacitively coupled to a circular ring
Author :
Yoo, Seongryong ; Kahng, Sungtek ; Jang, Geonho ; Mok, Se-gyoon ; Anguera, Jaume ; Choi, Jaehoon
Author_Institution :
Dept. of Inf. & Telecomm. Eng., Univ. of Incheon, Incheon, South Korea
Abstract :
In this paper, a novel circular patch antenna is proposed to have Zeroth Order Resonance(ZOR) generated based on the Metamaterial Composite Right- and Left-Handed(CRLH) structure. Making the in-phase electric field over the entire antenna other than a half-wavelength as the fundamental resonance mode of a ordinary microstrip patch or its positive multiple, the metallic patch is suggested to be capacitively coupled with only one surrounding circular ring, different from the previous 1D ZOR antennas commonly having several metal cells in line. The performance of the proposed antenna is simulated by a 3D field solver that inputs the sizes of the physical structure corresponding to the equivalent circuit designed to have ZOR at 2.4 GHz. Consequently, the resonance frequency, the gain and the antenna efficiency are observed 2.4 GHz, 5 dB and 98%, respectively. Besides, the important property of the proposed antenna is addressed as the combination of the low-cost low-profile as an advantage of microstrip patch antennas, and the omni-directional field pattern typical of monopole antennas.
Keywords :
UHF antennas; composite materials; equivalent circuits; metamaterial antennas; metamaterials; microstrip antennas; monopole antennas; omnidirectional antennas; 3D field solver simulation; circular ring; composite right and left handed; efficiency 98 percent; equivalent circuit design; frequency 2.4 GHz; gain 5 dB; in-phase electric field; metallic patch antenna; metamaterial CRLH ZOR circular patch antenna; microstrip patch antenna; monopole antenna; omnidirectional field pattern; resonance mode; zeroth order resonance; Antenna radiation patterns; Equivalent circuits; Metamaterials; Microstrip; Microstrip antennas; Patch antennas; Circular patch antenna; Lowprofile; Metamaterial CRLH; ZOR;
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.2011.5996463