Frequency-doubling amplifying surface wave receiver

Details Frequency-doubling amplifying surface wave receiver Frequency-doubling amplifying surface wave receiver

1988-09-16

1989-06-13

Mottola, Steven

Amplifiers

With solid element wave propagating amplifying device

Phonon type

330 46, H03F 700

Patent

active

048396079

ABSTRACT:
An amplifying surface wave receiver for a surface wave element composed of a material which has the piezo effect and which can be rendered electrically conductive by local doping wherein a doped region is formed at the upper portion of an insulating substrate body (8) which forms the surface wave element and said doped region forms a conductive channel (7) between at least two contact electrodes (3, 3') which have a defined distance from each other and in the channel thus formed the occurring piezo charges are positioned so as to modulate the conductivity of the channel. One pole terminal of a voltage source (4) is connected to one of the contact electrodes (3) and the other pole terminal is connected to the other contact electrode (3') through an alternating current detector (5).

REFERENCES:
patent: 4233530 (1980-11-01), Mikoshiba et al.
Article, "Monolithic GaAs Acoustic Charge Transport Devices", by Hoskins et al, 1982, Ultrasonics Symposium, pp. 456-460.

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