Low Loss Orthogonal Frequency Coded Surface Acoustic Wave Correlator Filters

Abstract

Low loss orthogonal frequency coded (OFC) surface acoustic wave (SAW) correlator filters are demonstrated for use in conjunction with simultaneous transmit and receive (STAR) radios. Single phase unidirectional transducers (SPUDTs) are used to decrease insertion loss of conventional SAW correlators to facilitate use in the transmitter and receiver of STAR radios.