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Dual-band dual-polarized transmitarray for satellite communications

A novel dual-band and dual-polarized transmitarray is proposed for both downlink and uplink frequency bands (12.5/14.25 GHz) of satellite communications. Two 3-layer elements are interlaced in a unit cell for dual-band operation, which achieves more than 300° phase range independently with less than 2 dB insertion loss in both bands. The dual-band transmitarray has achieved high gains of 31.3 dBi and 32.4 dBi with aperture efficiencies of 46.5% and 47.3% in downlink and uplink frequency bands respectively.