Continuous-wave radar responder having two-position switches

Details Continuous-wave radar responder having two-position switches Continuous-wave radar responder having two-position switches

1980-05-09

1982-11-09

Hubler, Malcolm F.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

455 7, 455 19, 343 68R, G01S 1380

Patent

active

043587631

ABSTRACT:
The invention relates to C-W radar responders, having a carrier of some gigahertz whose amplitude is modulated between some dozens and some hundreds of kilohertz. Such a responder comprises means for sampling the signal it receives in such a manner that the sampling theorem is satisfied with respect to the amplitude-modulation frequency. The responder comprises at least an aerial, a radio-frequency amplifier, a delay line, a clock generator, an input, an output and two switches connected to the input and to the output, respectively, of the amplifier. The operating sequence of the switches, controlled by the clock generator, is such that each sample of the received signal passes through the amplifier more than once before it is re-transmitted.

REFERENCES:
patent: 2957050 (1960-10-01), Barton
patent: 2986707 (1961-05-01), Blecher
patent: 3617913 (1971-11-01), Schmidhauser
patent: 3685050 (1972-08-01), Cartwright
patent: 4072949 (1978-02-01), Van Brunt
patent: 4151525 (1979-04-01), Strauch et al.

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