Title :
Aperture-coupled reflectarray element with wide range of phase delay
Author :
Carrasco, E. ; Barba, M. ; Encinar, J.A.
Author_Institution :
Electromagnetism & Circuit Theor. Dept., Univ. Politecnica de Madrid, Spain
fDate :
6/8/2006 12:00:00 AM
Abstract :
An aperture-coupled phase-shifter element providing a very wide range of phase delay is proposed as a unit cell in reflectarrays. A range of phase delay larger than 1600° has been achieved by using a U-shaped true-time delay line. Theoretical results are validated by comparing them with the measurements of two elements in a waveguide simulator, showing good agreement for both phase delay and losses.
Keywords :
aperture-coupled antennas; delay lines; phase shifters; reflector antennas; waveguide antenna arrays; U-shaped true time delay line; aperture coupled reflectarray element; phase delay; phase shifter element; waveguide simulator; Angular velocity; Attitude control; Backstepping; Feedback; Optimal control; Space technology; Space vehicles; Torque control; Uncertain systems; Wheels;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20060472
