Title :
Sectored-beam reflectarray antenna with pattern reconfiguration by using RF-MEMS switches
Author :
Carrasco, Eduardo ; Barba, Mariano ; Encinar, José A. ; Arrebola, Manuel
Author_Institution :
Electromagn. & Circuit Theor. Dept., Univ. Politec. de Madrid (UPM), Madrid, Spain
Abstract :
A reflectarray antenna with pattern reconfiguration which can be used in base stations for point-to multipoint applications is presented at 10.40 GHz. By the introduction of control elements based on RF-MEMS, the radiation pattern can be switched between three 30-degree sectors or a 60-degrees sector in the azimuth plane, with a squared cosecant shape in the elevation plane. The antenna consists of 364 aperture-coupled elements which have been gathered by pairs with the aim of reducing the number of electronic control devices and their associated feeding lines.
Keywords :
antenna feeds; antenna radiation patterns; microswitches; microwave antenna arrays; reflectarray antennas; RF-MEMS switch; antenna radiation pattern; aperture-coupled element; azimuth plane; base station; electronic control device; elevation plane; feeding line; frequency 10.40 GHz; pattern reconfiguration; point-to multipoint application; sectored-beam reflectarray antenna; squared cosecant shape; Antenna radiation patterns; Azimuth; Delay lines; Micromechanical devices; Reflector antennas; Shape; MEMS devices; aperuture-coupling; reconfigurable-beam; reflectarray antennas;
Conference_Titel :
Antennas and Propagation (EUCAP), 2012 6th European Conference on
Conference_Location :
Prague
Print_ISBN :
978-1-4577-0918-0
Electronic_ISBN :
978-1-4577-0919-7
DOI :
10.1109/EuCAP.2012.6206009
