Title :
Broadband metal-plate lens with short focal length
Author :
Onoue, H. ; Kamiya, Naoyasu ; Suga, R. ; Hashimoto, Osamu
Author_Institution :
Dept. of Electr. Eng. & Electron., Aoyama Gakuin Univ., Sagamihara, Japan
Abstract :
This paper presents a broadband metal-plate lens with a short focal length by considering radiated electric field near a primary radiator. The gain and radiation pattern of the proposed lens antenna was measured to be equivalent characteristics of a conventional lens antenna. As a result, the proposed lens can be moved 35 cm to the primary radiator compared with the conventional lens. Moreover, the gain of the proposed lens antenna is simulated to be higher than 20 dBi up to 10 GHz.
Keywords :
antenna radiation patterns; broadband antennas; geometrical optics; lens antennas; antenna gain; antenna radiation pattern; broadband metal-plate lens antenna; geometrical optics; primary radiator; radiated electric field; short focal length; Antenna measurements; Antenna radiation patterns; Broadband antennas; Horn antennas; Lenses; Metals; Broadband characteristics; Focal length; Geometrical optics; Metal-plate lens;
Conference_Titel :
Radar Conference (EuRAD), 2013 European
Conference_Location :
Nuremberg
