Multi-mode direction finding antenna

Details Multi-mode direction finding antenna Multi-mode direction finding antenna

1981-08-31

1986-04-22

Lieberman, Eli

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343742, 343845, H01Q 322, H01Q 324, H01Q 326

Patent

active

045845824

ABSTRACT:
An antenna having more than four elements positioned in a predetermined regular pattern with equal angles between adjacent elements and a mode former connected to the elements to shift signals from the elements by first equal electrical angles and superimposing the signals to provide a first output mode and shifting the signals by second equal electrical angles and superimposing the signals to provide a second output mode, the two output modes providing sufficient information to determine the direction of the radiated signal impinging on the antenna.

REFERENCES:
patent: 3718935 (1973-02-01), Ranghelli et al.
patent: 4213132 (1980-07-01), Davidson
patent: 4309706 (1982-01-01), Mosko

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