Passive retroreflective doppler shift system

Details Passive retroreflective doppler shift system Passive retroreflective doppler shift system

1982-02-17

1985-05-14

Tubbesing, T. H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 8, G01S 1358, H01Q 1516

Patent

active

045175691

ABSTRACT:
A retroreflector system which permits the superposition of wide-band dopp-shifts upon a signal incident on a retroreflective device before the search signal is reemitted and returned to the signals source of origin. The retroreflector system has a multisurfaced retroreflective device having at least one activated reflective surface along with other rigid surfaces in which the activated reflective surfaces have vibrational and/or rotational movement imposed thereon by modulating means to establish doppler shifted components to the reemitted search signal.

REFERENCES:
patent: 2391914 (1946-01-01), McElhannon
patent: 2443643 (1948-06-01), Schelleng
patent: 2461005 (1949-02-01), Southworth
patent: 3019430 (1962-01-01), Pedersen et al.
patent: 3154784 (1964-10-01), Allen
patent: 3158862 (1964-11-01), Chisholm
patent: 3305863 (1967-02-01), Jacobs
patent: 3660843 (1972-05-01), Wolff
patent: 4233605 (1980-11-01), Coleman
patent: 4370654 (1983-01-01), Krutsch

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