Title :
Antennas for electronic beam steering and focusing at millimeter wavelengths
Author :
Räisänen, A.V. ; Ala-Laurinaho, J. ; Chicherin, D. ; Du, Z. ; Generalov, A. ; Karttunen, A. ; Lioubtchenko, D. ; Mallat, J. ; Tamminen, A. ; Zvolensky, T.
Author_Institution :
Dept. of Radio Sci. & Eng., Aalto Univ., Espoo, Finland
Abstract :
This paper discusses the prospects of millimeter-wave beam steering antennas, such as tuneable high-impedance surface, dielectric rod waveguide with an integrated phase shifter, tuneable leaky-wave antenna, active reflectarray, and shaped lens antenna with an integrated switched feed array. In these antennas the necessary phase change for antenna elements can be achieved using various electronically tuneable elements, but in our case MEMS are used. Some early results of our investigations are presented.
Keywords :
antenna feeds; beam steering; dielectric waveguides; leaky wave antennas; micromechanical devices; millimetre wave antenna arrays; millimetre wave phase shifters; reflectarray antennas; MEMS; active reflectarray; antenna elements; dielectric rod waveguide; electronic beam focusing; electronic beam steering; electronically tuneable elements; integrated phase shifter; integrated switched feed array; millimeter wavelengths; millimeter-wave beam steering antennas; shaped lens antenna; tuneable high-impedance surface; tuneable leaky-wave antenna; Antennas; Arrays; Beam steering; Lenses; Micromechanical devices; Surface impedance; Surface waves;
Conference_Titel :
Electromagnetics in Advanced Applications (ICEAA), 2012 International Conference on
Conference_Location :
Cape Town
Print_ISBN :
978-1-4673-0333-0
DOI :
10.1109/ICEAA.2012.6328815
