Title :
Miniaturized zeroth order resonance antenna over a reactive impedance surface
Author :
Dong, Yuandan ; Toyao, Hiroshi ; Itoh, Tatsuo
Author_Institution :
Dept. of Electr. Eng., Univ. of California, Los Angeles, Los Angeles, CA, USA
Abstract :
A miniaturized zeroth order resonance (ZOR) antenna designed on a reactive impedance surface (RIS) is proposed and presented. It is essentially a composite right/left-handed (CRLH) structure which enables the miniaturization by pushing down the left-handed (LH) region. This is achieved by increasing the LH inductor using a shorted meander line. The RIS consists of two-dimensional periodic printed metallic patches. It is an inductive surface which can also miniaturize the antenna size and improve the radiation efficiency. The antenna radiates omni-directional waves in the horizontal plane. Simulated and measured results are provided, which show a good consistency.
Keywords :
antenna radiation patterns; inductors; metamaterials; omnidirectional antennas; LH inductor; composite right-left-handed structure; inductive surface; miniaturized zeroth order resonance antenna; omnidirectional wave radiation; radiation efficiency; reactive impedance surface; shorted meander line; two-dimensional periodic printed metallic patch; Antenna measurements; Antenna radiation patterns; Impedance; Reflection; Surface impedance; Transmission line measurements;
Conference_Titel :
Antenna Technology (iWAT), 2011 International Workshop on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-9133-9
DOI :
10.1109/IWAT.2011.5752282
