Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1976-11-11
1978-02-07
Tubbesing, T. H.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343 73, G01S 902
Patent
active
040729427
ABSTRACT:
Apparatus for the detection of buried objects comprising a broadband, high resolution short pulse transmitter and a bistatic or monostatic noncontacting antenna for radiating the transmitted signal through the ground for reflection from a buried object, a sampling type receiver which reduces the bandwidth and center frequency of the received signal, and a locking circuit controlled by the first reflection from the ground or soil surface to thereby lock the range sweep to the soil surface and eliminate the effects of antenna height variations.
REFERENCES:
patent: 3392384 (1968-07-01), Wesch
patent: 3967282 (1976-06-01), Young et al.
Calspan Corporation
Jaffe Allen J.
Tubbesing T. H.
Zobkiw David J.
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