Title :
A New Broadband Single-Layer Dual-Band Reflectarray Antenna in X- and Ku-Bands
Author :
Hamzavi-Zarghani, Zahra ; Atlasbaf, Zahra
Author_Institution :
Electr. & Comput. Eng. Dept., Tarbiat Modares Univ., Tehran, Iran
Abstract :
A center-fed single-layer, dual-band reflectarray antenna is presented in this letter. Each element in this reflectarray antenna consists of a square ring and a patch, with slots on it. The proposed antenna operates in two bands (X and Ku), and it uses only one horn antenna as feed, in a fixed position. By varying the size of elements, the required phase shifts in X- and Ku-bands are obtained. Measurements show a maximum gain of 23.4 dB at 8.2 GHz with 33%, 3-dB bandwidth and 17%, 1-dB bandwidth and a maximum gain of 25.7 dB at 13.2 GHz with 30%, 3-dB bandwidth and 14%, 1-dB bandwidth.
Keywords :
broadband antennas; horn antennas; microstrip antenna arrays; microwave antenna arrays; multifrequency antennas; reflectarray antennas; Ku-band; X-band; bandwidth 13.2 GHz; bandwidth 8.2 GHz; broadband reflectarray antenna; gain 1 dB; gain 23.4 dB; gain 25.7 dB; gain 3 dB; horn antenna; phase shifts; single-layer dual-band reflectarray antenna; Bandwidth; Broadband antennas; Dual band; Horn antennas; Microstrip; Microstrip antennas; Reflector antennas; Dual-band; microstrip; reflectarray antenna; single-layer;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2014.2374351
