Title :
Broadband design of three-layer printed reflectarrays
Author :
Encinar, Jose A. ; Zornoza, J. Agustín
Author_Institution :
Electromagnetism & Circuit Theor. Dept., Polytech. Univ. of Madrid, Spain
fDate :
7/1/2003 12:00:00 AM
Abstract :
A method is proposed to design three-layer printed reflectarrays with patches of variable size for broadband operation. The patch dimensions are adjusted by an optimization routine to achieve the required phase distribution in a given frequency band. A 1-meter reflectarray was designed, and significant bandwidth and gain stability improvements were obtained.
Keywords :
antenna radiation patterns; broadband antennas; microstrip antenna arrays; optimisation; reflector antennas; bandwidth; broadband design; frequency band; gain stability; grounded substrate; microstrip reflectarray; optimization routine; patch dimensions; phase distribution; planar antenna array; radiation patterns; three-layer printed reflectarrays; variable size patches; Bandwidth; Delay lines; Feeds; Frequency; Microstrip antenna arrays; Nonhomogeneous media; Optical reflection; Planar arrays; Propagation delay; Stability;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2003.813611
