Wave transmission lines and networks – Coupling networks – With impedance matching
Patent
1975-05-29
1976-08-17
Smith, Alfred E.
Wave transmission lines and networks
Coupling networks
With impedance matching
235181, 310 98, 333 72, H03H 926, H03H 930, G06G 719, H01L 4110
Patent
active
039756963
ABSTRACT:
Solid-state diodes constituted by a semiconductor 3 and an insulated electrode 1 are aligned upon a piezoelectric substrate 4 at the surface of which there propagate the acoustic waves induced by the signals applied to transducers 7 and 8. With each diode there is associated a capacitor whose dielectric is constituted by a portion of the substrate 4; 9 designates the terminals of the electrodes 2 and 5 between which a voltage pulse is applied, in order to charge up the capacitors, after a first high frequency signal has been applied to the transducer 7. Thus, there is stored the high frequency signal at the terminals of the capacitor. During discharge of the capacitor, a second signal is applied to one of the transducers 7 or 8. At 9, there is picked off either the correlation or the convolution of the stored signal and the second signal.
REFERENCES:
patent: 3675140 (1972-07-01), Fang et al.
patent: 3691406 (1972-09-01), Mize
patent: 3792321 (1974-02-01), Seifert
patent: 3826932 (1974-07-01), Wang
patent: 3833867 (1974-09-01), Solie
patent: 3851280 (1974-11-01), Staples
"Thomson-CSF"
Nussbaum Marvin
Plottel Roland
Smith Alfred E.
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