Design of Multi-Functional Transmitarray with Active Linear Polarization Conversion and Beam Steering Capabilities

This study designed a multi-functional reconfigurable transmitarray with switchable polarization and beam steering capabilities using only PIN diode having ON/OFF switching ability. The simulation confirmed that the proposed architecture is capable of 2D scanning up to ±45° for elevation azimuth while maintaining or converting linear when operating within X-band. performance was verified through far-field pattern measurement near-field antenna system by producing an 8 × unit cell arrangement. maximum level gain be 14.5 dBi, sidelobe below dBc, loss 1.28 dB, isolation above 14.7 dB. It can utilized design technique radar demanding small size, weight, power, cost (SWaP-C) characteristics based on simplified composition.