Title :
Reflectarray antennas using single layer polarization independent multi-resonant unit cells
Author :
Niroo-Jazi, Mahmoud ; Chaharmir, M.R. ; Shaker, Jafar ; Sebak, Abdel Razik
Author_Institution :
Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, QC, Canada
Abstract :
The investigation results of a single layer reflectarray (RA) antenna are presented and discussed. The design frequency of the RA is set at 12 GHz, and it consists of 20×20 polarization independent resonant unit cells (UCs), which are illuminated by a circular horn antenna placed at F=200 mm to obtain F/D=0.77. The UCs are composed of three resonant elements, a cross loop surrounded by two concentric circular rings. The obtained results demonstrate that the proposed new UC provides a large linear phase variation range of at least 700°. The designed RA antenna offers a gain of at least 27.5 dB for an aperture area of 10Λ×10λ at the operating frequency.
Keywords :
horn antennas; reflectarray antennas; RA antenna; UC; circular horn antenna; concentric circular rings; cross loop; linear phase variation range; reflectarray antennas; single layer polarization independent multiresonant unit cells; Antenna radiation patterns; Broadband antennas; Broadband communication; Fabrication; Feeds; Gain; Reflector antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6904731
