Title :
Ka-band dual mode circularly polarized reflectarray
Author :
Mahmoud, Ali ; Kishk, Ahmed A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, QC, Canada
Abstract :
A double layers dual mode circularly polarized (CP) reflectarray antenna operating in the ka-band is presented. The reflectarray is center fed by a circularly polarized horn. The antenna is analyzed numerically. Angular rotation technique for a crossed slot array element is used to make phase compensation. An excellent CP performance is achieved with high aperture efficiency and wide band gain bandwidth of 16.5 % for 1.5 dB gain variation.
Keywords :
antenna feeds; horn antennas; microwave antenna arrays; millimetre wave antenna arrays; reflectarray antennas; slot antenna arrays; Ka-band dual mode reflectarray; angular rotation; center fed; circularly polarized horn; circularly polarized reflectarray; crossed slot array element; double layers; gain 1.5 dB; phase compensation; reflectarray antenna; Apertures; Arrays; Bandwidth; Gain; Polarization; Substrates; Angular rotation technique; Reflectarray; broadband circular polarization;
Conference_Titel :
Antenna Technology and Applied Electromagnetics (ANTEM), 2014 16th International Symposium on
Conference_Location :
Victoria, BC
DOI :
10.1109/ANTEM.2014.6887718
