Abstract
This article reports the design and analysis of a wideband, single layer, and dual-polarized microstrip reflectarray for Ku-band applications. The array element is constructed using a crossed dipole enclosed by two cross dipole loops. The element is optimized to exhibit a linear phase response and wide reflection phase range. The reflection characteristic of the unit cell is analyzed using an infinite array approach and the results are presented. A 324-element Ku-band microstrip reflectarray antenna of size 20 × 20 cm2 is simulated, fabricated, and experimentally evaluated. The 2.9-dB gain-bandwidth and aperture efficiency of the reported reflectarray are 45.3% and 35%, respectively. The reflectarray operates in the frequency range of 10.6 to 16.8 GHz.
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