Title :
An Investigation on the gain of folded reflectarray antennas with different F/Ds
Author :
Mei Jiang ; Yan Zhang ; Wei Hong ; Shun Hua Yu
Author_Institution :
State Key Lab. of Millimeter Waves, Southeast Univ., Nanjing, China
Abstract :
In this paper, an investigation on the effect of F/D ratio on gain for folded reflectarray antenna (FRA) is presented. Quantization phase errors which are the major contribution to losses of reflectarray are presented with different F/D ratios. In order to reduce the quantization phase error, a folded reflectarray antenna with high F/D ratio is preferred. A pair of FRAs with F/D of 0.5 and 1 is chosen to fabricated, measured and compared at 42GHz, respectively. A gain improvement of 0.8dB is achieved when the larger F/D, namely 1, is adopted to the antenna.
Keywords :
millimetre wave antenna arrays; millimetre wave phase shifters; quantisation (signal); reflectarray antennas; F-D ratio; bandwidth 42 GHz; folded reflectarray antenna gain; gain 0.8 dB; millimeter-wave band; parabolic antenna; phase shifting surface; quantization phase error reduction; reflectarray losses; wireless communications; Antenna measurements; Gain; Microstrip antennas; Quantization (signal); Reflector antennas; Folded reflectarray antenna; parabolic antenna; phase shifting surface; quantization phase error;
Conference_Titel :
Antennas & Propagation (ISAP), 2013 Proceedings of the International Symposium on
Conference_Location :
Nanjing
Print_ISBN :
978-7-5641-4279-7
