Bit Error Rate Performance of Quadrature Modulation Transmission Using Reconfigurable Frequency Selective Surfaces

摘要

A low-complexity radio transmitter is implementedudand evaluated using a novel direct antenna modulation (DAM)udtechnique incorporating a reconfigurable antenna. The antennauduses reconfigurable frequency selective surfaces (FSS) to directlyudphase modulate a radio frequency carrier wave with a quadratureudphase shift keying (QPSK) modulation. A hardware-in-the-loopuddemonstration of the transmitter in a single in single out (SISO)udcommunications system has been developed. To achieve a BERudof 10−4udthe proposed system required only 4dBm extra transmitudpower compared with instrument grade transmission.ud