Tuned unidirectional surface wave transducer

摘要: A surface acoustic wave device having a unidirectional input transducer is provided with an tuning circuit which eliminates the reactive portions of device's impedance. The has pair ports, each exhibits impedance A∠φ. series including reactances magnitude A(sinφ+cosφ) and A(sinφ-cosφ) respectively, connected to ports. An alternative parallel disclosed whose are A/(sinφ+cosφ) A/(sinφ-cosφ) respectively.