Accession Number:

ADD005566

Title:

Proximity Fuze Jammer.

Descriptive Note:

Patent,

Corporate Author:

DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s):

Report Date:

1978-10-17

Pagination or Media Count:

4.0

Abstract:

This patent describes a system for jamming continuous wave radar type proximity fuzes used on surface-to-air missiles where the fuze requires an increase in return signal power level and a rapid frequency change for detonation. The system basically includes a receiver, amplifier, and transmitter. A received fuze signal is filtered and square wave modulated then sent to a first traveling wave tube for amplification. The signal is then amplified again by a second traveling wave tube which is modulated by a transit time modulator which continuously varies the phase shift through the tube in a linear fashion. The linear variation in phase shift is the equivalent of a displacement in the frequency signal being amplified. The signal is then reradiated to the missile giving the fuze a target sensing causing it to predetonate.

Subject Categories:

  • Radio Countermeasures
  • Ammunition and Explosives

Distribution Statement:

APPROVED FOR PUBLIC RELEASE