Title :
A Ku-band reflectarray using variable rings and slots on the ground plane
Author :
Oh, Seong-Won ; Ahn, Chi-Hyung ; Chang, Kai
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
A unit cell composed of a microstrip ring and a slot on the ground plane is presented. The phase response range of the unit cell at 18 GHz is over 440° with a smooth phase variation. A Ku band reflectarray is designed and measured at 18 GHz to verify its performance. The maximum gain and half-power beam width is 31.7 dB and 4.7°, respectively. The reflectarray gives a high gain despite of some leakage wave to back side.
Keywords :
leaky wave antennas; microwave antenna arrays; reflector antennas; Ku-band reflectarray; frequency 12 GHz to 18 GHz; ground plane slots; leakage wave; microstrip ring; phase variation; unit cell; variable rings; Antenna measurements; Gain; Microstrip; Microstrip antenna arrays; Microstrip antennas; Reflector antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2010 IEEE
Conference_Location :
Toronto, ON
Print_ISBN :
978-1-4244-4967-5
DOI :
10.1109/APS.2010.5560979
