Continuously variable surface acoustic wave delay line

Details Continuously variable surface acoustic wave delay line Continuously variable surface acoustic wave delay line

1980-12-30

1982-08-03

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Delay lines including elastic surface wave propagation means

333150, H03H 942, H03H 968, H03H 938

Patent

active

043429718

ABSTRACT:
A surface acoustic wave variable time delay includes a surface acoustic wave device (10) which is secured within a housing (30). The device (10) is provided with an input transducer (12) and an output transducer (16) which are respectfully connected to input lines (14) and output lines (18). An electrostrictive element (20) is secured within housing (30) between an end of device (10) and an interior wall (34) of housing (30). A control signal is applied to electrodes (22, 24) connected to element (20) to vary the size thereof. Element (20) applies a mechanical force to the surface acoustic wave device (10) to alter the distance between the input transducer (12) and output transducer (16) to thereby control the delay time between the signal supplied to the input lines (14) and the output signal at the output lines (18).

REFERENCES:
patent: 3233749 (1966-02-01), Devol
patent: 3723915 (1973-03-01), Adler et al.
patent: 3916348 (1975-10-01), Toda et al.
patent: 3978731 (1976-09-01), Reeder et al.

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