Single-Layer Quad-Band Printed Reflectarray Antenna with Dual Linear Polarization


A novel single layer, dual linear polarized unit cell is introduced for a quad-band reflectarray antenna in the Ku-band targeted around twelve, 13, 14, and fifteen.5 GHz. The unit-cell design is such that the resultant reflectarray antenna can be thought-about as four different reflectarray antennas, every with a specific beam form, sharing one aperture. As proof-of-concept, two quad-band reflectarray antenna prototypes having a plate size of $20 times 20;textcm^2$ have been designed and fabricated each with a certain beam direction versus frequency. Measurement and simulation results show satisfactory performance of both reflectarray antennas at each frequency.

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