Modulator with improved damping

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328 67, H03K 1716

Patent

active

052911438

ABSTRACT:
A modulator with improved damping comprises a charging network which limits the rate at which energy is transferred into a pulse forming network, and a switch to discharge the energy stored in the pulse forming network when the network has charged to a predetermined energy level. The pulse forming network discharges into the primary winding of a transformer which couples the energy to its secondary winding which routes the energy to an RF power generating tube. The modulator also includes an improved damping network which places a diode and resistor electrically in parallel with each other, and both in series with the switch to reduce the magnitude of the post-pulse voltage oscillations.

REFERENCES:
patent: 2686263 (1954-08-01), Konick
patent: 3320491 (1967-05-01), Eckstein, Jr.
patent: 3328703 (1966-02-01), Lee
patent: 3662189 (1972-05-01), Robinson et al.
patent: 4150307 (1979-04-01), Loucks
patent: 4371830 (1983-02-01), Loucks
patent: 4684821 (1987-08-01), Picone et al.
patent: 4803378 (1989-02-01), Richardson
patent: 4812686 (1989-03-01), Morse
Radar Handbook, 2nd Ed., Pulse Modulators, by Merrill I. Skolnik, McGraw-Hill, 1990; pp. 4.32 through 4.39.
Radar Handbook, 1st Ed., Transmitters, by Merrill I. Skolnik, McGraw-Hill, 1970; pp. 7-68 through 7-87.
Introduction to Radar Systems, 2nd Ed., Modulators, by Merrill I. Skolnik, McGraw-Hill, 1980; pp. 214-216.

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