Title :
Design and Implementation of a Broadband Single Layer Circularly Polarized Reflectarray Antenna
Author :
Malfajani, Reza Shamsaee ; Atlasbaf, Zahra
Author_Institution :
Dept. of Electr. & Comput. Eng., Tarbiat Modares Univ., Tehran, Iran
fDate :
7/4/1905 12:00:00 AM
Abstract :
The design and implementation of a broadband single-layer circularly polarized reflectarray antenna is presented in this letter. Each element in the proposed reflectarray consists of a circular microstrip patch attached to four variable-length phase delay lines to achieve more than 650° of linear phase for frequencies in the range 9.6-11.2 GHz. Measurement results show 15.5% 3-dB gain bandwidth and 14.6% 3-dB axial-ratio bandwidth.
Keywords :
broadband antennas; delay lines; electromagnetic wave polarisation; linear antenna arrays; microstrip antenna arrays; microwave antenna arrays; reflectarray antennas; broadband single layer circularly polarized reflectarray antenna; circular microstrip patch antenna; frequency 9.6 GHz to 11.2 GHz; gain 3 dB; linear phase antenna; variable-length phase delay line; Bandwidth; Broadband antennas; Delay lines; Microstrip; Microstrip antennas; Reflector antennas; Circular microstrip patch; circular polarization; phase delay lines; reflectarray antenna;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2012.2213570
