Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1980-11-03
1982-12-28
Tubbesing, T. H.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343 16M, 343119, 343895, G01S 332, H01Q 136
Patent
active
043664830
ABSTRACT:
A receiver for locating a source of RF radiation received by a four-arm spiral antenna having an angular measurement frame normal to the antenna axis, including a detection circuit for detecting signals received from each of the spiral arms in response to receipt of RF radiation by the antenna; a first comparison circuit for comparing signals detected from a first opposite pair of the spiral arms to produce a first signal that is proportional to a first function of the frequency of the received RF radiation and the angular displacement of the radiation source in the measurement frame; a second comparison circuit for comparing signals detected from the remaining opposite pair of the spiral arms to produce a second signal that is proportional to a second function of the frequency of the received RF radiation and the angular displacement of the radiation source in the measurement frame; and a processing circuit for processing the first and second signals to produce third and fourth signals that are proportional to the angular displacement and independent of the frequency of the received RF radiation.
REFERENCES:
patent: 3013265 (1961-12-01), Wheeler
patent: 3175217 (1965-03-01), Kaiser, Jr. et al.
patent: 3229293 (1966-01-01), Little et al.
patent: 3246331 (1966-04-01), Royal
patent: 3344425 (1967-09-01), Webb
patent: 3381297 (1968-04-01), Zisler et al.
patent: 3566407 (1971-02-01), Trippe
patent: 3683385 (1972-08-01), Corzine et al.
Brustad John T.
Hagedon Gary L.
Callan Edward W.
General Dynamics Pomona Division
Johnson Edward B.
Martin Neil F.
Tubbesing T. H.
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