Title :
Design of a stacked stub-loaded patch element for X-band reflectarray antenna with true time delay
Author :
Sarshar, A. ; Tabari, A.E.
Author_Institution :
Commun. & Comput. Res. Center, Ferdowsi Univ. of Mashhad, Mashhad, Iran
Abstract :
A multilayer reflectarray element consisting of a stacked stub-loaded patch is proposed for X-band linear polarization reflectarray antenna. Geometric parameters of the structure are optimized to achieve better impedance matching between the stub line and the radiating patch. Infinite array method is used for analysis of the reflectarray. The effect of oblique incidence is also investigated on the phase diagram. Obtained results show that the phase curves are nearly smooth for a wide range of phase delays that enable the true time delay effect.
Keywords :
antenna radiation patterns; impedance matching; microstrip antennas; reflectarray antennas; X-band linear polarization reflectarray antenna; geometric parameter; impedance matching; infinite array method; multilayer reflectarray element; phase delay; phase diagram; radiating patch; stacked stub-loaded patch element; stub line; time delay; Antenna arrays; Antenna feeds; Arrays; Bandwidth; Delay effects; Reflectarray; Stub-loaded Patch Element; True Time Delay;
Conference_Titel :
Antennas and Propagation (EuCAP), 2013 7th European Conference on
Conference_Location :
Gothenburg
Print_ISBN :
978-1-4673-2187-7
Electronic_ISBN :
978-88-907018-1-8
