Title :
Reconfigurable patch antennas for steerable reflectarray applications
Author :
Gianvittorio, John P. ; Rahmat-Samii, Yahya
Author_Institution :
Electr. Eng. Dept., Univ. of California, Los Angeles, CA
fDate :
5/1/2006 12:00:00 AM
Abstract :
Reconfigurable reflectarrays have been designed with patch elements which can vary the reflected phase by varying the height of the patches. These patches have been designed using a periodic method of moments simulation. Reflectarrays incorporating elements of varying heights have been built and tested. The first design is a 33 element array comprised of stacked patches which operates at 7.31 GHz. The second design is a 120-element dipole array over a ground plane which operates at 5.2 GHz. Microelectrical, mechanical systems actuation technology could be used to implement these designs and a potential concept is suggested
Keywords :
beam steering; dipole antenna arrays; method of moments; micromechanical devices; microstrip antenna arrays; reflector antennas; 120-element dipole array; 5.2 GHz; 7.31 GHz; Microelectrical system; ground plane; micromechanical systems actuation technology; patch element; periodic method of moment; reconfigurable patch antenna; steerable reflectarray application; Dielectric substrates; Dipole antennas; Feeds; Mechanical systems; Micromechanical devices; Moment methods; Patch antennas; Phased arrays; Reflector antennas; Resonance; Microelectrical, mechanical systems (MEMS) utilization; phase shifters; reflectarray; reflector antenna;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2006.874311
