Title :
Realizing an electronically tunable reflectarray using varactor diode-tuned elements
Author :
Hum, Sean V. ; Okoniewski, Michael ; Davies, Robert J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Calgary Univ., Alta., Canada
fDate :
6/1/2005 12:00:00 AM
Abstract :
Electronically tunable reflectarrays hold significant promise as cost effective architectures for RF beamforming applications. The successful operation of these arrays depends on the phase agility of the cells used to realize the array. This letter describes the design of an electronically tunable reflectarray based on a novel cell architecture that provides a large degree of phase agility. Experimental results demonstrating the beamforming capabilities of the array at 5.8 GHz are presented.
Keywords :
circuit tuning; design; microstrip antenna arrays; microwave antenna arrays; reflector antennas; varactors; 5.8 GHz; RF beamforming; electronically tunable reflectarray; microstrip arrays; novel cell architecture; phase agility; reflectarray antenna; varactor diode-tuned elements; Antenna measurements; Array signal processing; Communication system control; Diodes; Light scattering; Microstrip antenna arrays; Microstrip antennas; Phased arrays; Reflector antennas; Varactors; Antenna arrays; microstrip arrays; reflectarray antenna; reflector antennas;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2005.850561