Self-mixing expendable

Details Self-mixing expendable Self-mixing expendable

1990-04-23

1994-11-29

Sotomayor, John B.

Communications: directive radio wave systems and devices (e.g.,

Radar reflector

With modulation

342 12, 342 13, G01S 738, H04K 300

Patent

active

053694082

ABSTRACT:
This invention is directed to an expendable which includes an electronic circuit for introducing a simulated Doppler frequency shift. When dropped from an aircraft, the expendable is used to confuse hostile radar operations. In the past, the approach has been to use a high frequency electronic switch (PIN diode) and drive oscillator to change the impedance of the expendable antenna. This invention involves a simplification which combines the electronic switch and its drive oscillator into a single semiconductor component. By connecting a feedback circuit from the collector to the base of a high frequency transistor as well as to the two arms of the antenna, the antenna impedance is changed at the transistor oscillating frequency.

REFERENCES:
patent: H646 (1989-06-01), Tsui
patent: 3108275 (1963-10-01), Chisholm
patent: 3894347 (1975-07-01), Sleven et al.
patent: 3911433 (1975-10-01), Redman
patent: 3962657 (1976-06-01), Redman et al.
patent: 4083004 (1978-04-01), Cohn
patent: 4130059 (1978-12-01), Block et al.
patent: 4419669 (1983-12-01), Slager et al.
patent: 4446793 (1984-05-01), Gibbs
patent: 4686534 (1987-08-01), Eddy
patent: 4733236 (1988-03-01), Matosian
patent: 4987418 (1991-01-01), Kosowsky et al.
patent: 5036323 (1991-07-01), Cain et al.

Affiliated with

Also associated with

Rating

Self-mixing expendable does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Self-mixing expendable, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-mixing expendable will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-76307