Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1975-01-30
1977-01-04
Griffin, Robert L.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343100CS, H04B 714
Patent
active
040016919
ABSTRACT:
In an electronic system for use in a communication system wherein there is radiated a plurality of information carrying electromagnetic first signals each having a radiating source and each having a radiated electromagnetic first reference signal, a transponder operable for receiving all of the electromagnetic signals and for radiating in response thereto a plurality of information carrying electromagnetic second signals corresponding respectively in information content to the first signals and a plurality of electromagnetic second reference signals corresponding respectively to the first reference signals, the transponder comprising a plurality of first antenna means each having output means and each operable for receiving the first signals and the first reference signals and for producing in response thereto a set of corresponding transmission line signals at its output means, and transmission means coupled to the output means of all of the first antenna means and operable for producing from the sets of transmission line signals the second reference signals as well as the second signals, each of the second signals having a spatial electromagnetic power density distribution having a peak value in the direction of each of the sources except for the source for its corresponding first signal for sources angularly spaced apart with respect to said transponder.
REFERENCES:
patent: 3166749 (1965-01-01), Schelleng et al.
patent: 3305864 (1967-02-01), Ghose
patent: 3394374 (1968-07-01), Weiss
patent: 3452356 (1969-06-01), Stoney
patent: 3631494 (1971-12-01), Gans
patent: 3710255 (1973-01-01), Gicca
patent: 3757335 (1973-09-01), Gruenberg
Griffin Robert L.
Marmorek Ernest F.
Ng Jin F.
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