Title :
Millimeter wave beam steering with a MEMS-based high impedance surface
Author :
Du, Zhou ; Chicherin, Dmitry ; Räisänen, Antti V.
Author_Institution :
Dept. of Radio Sci. & Eng., Aalto Univ., Aalto, Finland
Abstract :
Beam steering with a MEMS-based high impedance surface has been studied in W band. The steering mechanism is based on the principle of a phase gradient array. Reflection phase properties of a single unit cell structure are analyzed. Radiation pattern of a strip consisting of elements with different impedance is analyzed numerically for two beams of normal and oblique incidence. The steering range is achieved from -45° to 45° with respect to the normal direction.
Keywords :
beam steering; micromechanical devices; millimetre wave circuits; MEMS-based high impedance surface; millimeter wave beam steering; phase gradient array; radiation pattern; reflection phase properties; single unit cell structure; Antenna radiation patterns; Impedance; Micromechanical devices; Reflection; Surface impedance; Surface waves; Tuning; Beam steering; Microelectromechanical devices; Millimeter wave technology; Phase gradient;
Conference_Titel :
Microwave Conference (EuMC), 2011 41st European
Conference_Location :
Manchester
Print_ISBN :
978-1-61284-235-6
