Title :
Micro-fabricated high-impedance surface for millimeter wave beam steering applications
Author :
Chicherin, Dmitry ; Dudorov, Sergey ; Sterner, Mikael ; Oberhammer, Joachim ; Räisänen, Antti V.
Author_Institution :
SMARAD Dept. of Radio Sci. & Eng., TKK - Helsinki Univ. of Technol., Helsinki
Abstract :
A multi-layer high-impedance surface has been micro-fabricated and measured in W band. It consists of an array of capacitors placed on a dielectric substrate with a ground plane. Reconfigurability of the effective surface impedance of this structure can be enabled by applying control voltage to the tunable capacitors. Tunable impedance surfaces can be used in phase shifters for a phased array antenna, and directly as a smart beam steering surface.
Keywords :
antenna phased arrays; beam steering; capacitors; microfabrication; micromechanical devices; millimetre wave antenna arrays; millimetre wave phase shifters; multilayers; MEMS; dielectric substrate; microfabricated high tunable-impedance surface; millimeter wave beam steering; multilayer high-impedance surface; phase shifters; phased array antenna; tunable capacitor array; Beam steering; Capacitors; Dielectric measurements; Dielectric substrates; Millimeter wave measurements; Phase shifters; Phased arrays; Surface impedance; Surface waves; Voltage control;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves, 2008. IRMMW-THz 2008. 33rd International Conference on
Conference_Location :
Pasadena, CA
Print_ISBN :
978-1-4244-2119-0
Electronic_ISBN :
978-1-4244-2120-6
DOI :
10.1109/ICIMW.2008.4665714
