Helical antenna array with resonant cavity and impedance matchin

Details Helical antenna array with resonant cavity and impedance matchin Helical antenna array with resonant cavity and impedance matchin

1984-06-27

1987-07-14

Sikes, William L.

Communications: radio wave antennas

Antennas

With coupling network or impedance in the leadin

343895, H01Q 136, H01Q 140

Patent

active

046805915

ABSTRACT:
An antenna is formed of four arrays each having sixteen helical antenna elements with probes located within a common resonant cavity. Thus cavity is used to combine all the outputs of elements.
The elements of array are arranged over the surface of box such that the probes are located at the voltage antinodes of the resonance field patterns in order to maximize the coupling efficiency. Likewise the output probe for each cavity 6 is also located at a voltage antinode; output probe enables the signal combined in cavity to pass into a waveguide, also connected to other arrays and, for passage to the television receiver.

REFERENCES:
patent: 2847672 (1958-08-01), Giffin et al.
patent: 2863148 (1958-12-01), Gammon et al.
patent: 3509572 (1970-04-01), Barbano
patent: 3623118 (1971-11-01), Monser
patent: 4197545 (1980-04-01), Favaloro et al.
patent: 4322731 (1982-03-01), Drabowitch
patent: 4356497 (1982-10-01), Dudome
patent: 4400703 (1983-08-01), Shiokawa et al.

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