Title :
Leaky-waves in a metamaterial-based two-dimensional structure for a conical beam antenna application
Author :
Allen, Catherine A. ; Caloz, Christophe ; Itoh, Tatsuo
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Abstract :
A two-dimensional periodic mushroom structure is proposed as a leaky-wave antenna with a conical beam. To the author´s knowledge, this is the first 2D leaky wave antenna demonstrated experimentally. The structure can be modelled as a composite right/left-handed (CRLH) transmission line and exhibits both backward and forward leakage. The radiation patterns for the antenna are shown and demonstrated a scanning range of 15°-33° in the backward region and 27°-63° in the forward region.
Keywords :
antenna radiation patterns; conical antennas; leaky wave antennas; transmission lines; 2D leaky wave antenna; 2D periodic mushroom structure; CRLH transmission line; backward leakage; conical beam antenna; forward leakage; leaky-wave antenna; metamaterial-based 2d structure; periodic structures; radiation patterns; Antenna radiation patterns; Bandwidth; Directional antennas; Frequency; Geometry; Leaky wave antennas; Metamaterials; Performance analysis; Periodic structures; Proposals;
Conference_Titel :
Microwave Symposium Digest, 2004 IEEE MTT-S International
Print_ISBN :
0-7803-8331-1
DOI :
10.1109/MWSYM.2004.1335878
