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Design and Implementation of a Broadband Single Layer Circularly Polarized Reflectarray Antenna

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2 Author(s)
Malfajani, R.S. ; Dept. of Electr. & Comput. Eng., Tarbiat Modares Univ., Tehran, Iran ; Atlasbaf, Z.

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.

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Antennas and Wireless Propagation Letters, IEEE  (Volume:11 )