Quasi-passive, non-radioactive receiver protector device

Details Quasi-passive, non-radioactive receiver protector device Quasi-passive, non-radioactive receiver protector device

1990-05-16

1992-03-17

Gensler, Paul

Wave transmission lines and networks

Resonator-type breakdown discharge systems

313309, 313601, H01P 114

Patent

active

050972316

ABSTRACT:
A receiver protector device includes a sealed discharge chamber containing one or more pairs of spaced-apart, conical electrodes and an ionizable gas. A field emission array is mounted in the discharge chamber to provide a source of free electrons which assist in initiating a discharge when an RF input signal exceeds a desired threshold power level. The field emission array includes a substrate, a plurality of generally conical emitters distributed on the substrate, a conductive gate layer for extracting electrons from the emitters and a dielectric layer between the gate layer and the substrate. When a bias voltage is applied to the gate layer, electrons are extracted from the emitters. The field emission array can be mounted adjacent to the electrodes or in a recess in one of the electrodes. The bias voltage can be supplied by a battery mounted on the receiver protector device external to the discharge chamber.

REFERENCES:
patent: 3453478 (1969-07-01), Shoulders et al.
patent: 3644779 (1972-02-01), Goldie
patent: 3665241 (1972-05-01), Spindt et al.
patent: 3710178 (1973-01-01), Johnson et al.
patent: 3755704 (1973-08-01), Spindt et al.
patent: 3858125 (1974-12-01), Nelson et al.
patent: 4780684 (1988-10-01), Kosmahl
C. A. Spindt et al., Applications of Surface Science, vol. 16, 1983, pp. 268-276.
"Product and Engineering Data", Varian Associates, 1989, pp. 29-47.
"The Chip That Adores a Vacuum", The Economist, Aug. 12, 1989, pp. 69-72.

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