Communications: radio wave antennas – Antennas – Logarithmically periodic
Patent
1977-12-27
1979-05-01
Lieberman, Eli
Communications: radio wave antennas
Antennas
Logarithmically periodic
H01Q 1110
Patent
active
041527062
ABSTRACT:
The basic log periodic zig zag antenna is made of one continuous conductor herein vertical wires function as radiators when they are in resonance. Horizontal wires of the antenna are the phasing stubs, which provide the proper phase shift for the radiating elements. Efficiency of the antenna is enhanced by effectively shortening the path between adjacent elements in the active region with a single conductor. Additionally, a vertical conductor between the shortened path conductor and the respective radiating elements reduces the resonance Q of the vertical radiators and functions as a mechanical support for the radiators.
REFERENCES:
patent: 3212094 (1965-10-01), Berry
patent: 3268904 (1966-08-01), Noguchi et al.
patent: 3271775 (1966-09-01), Yang
Barbano Normand
Kuo Samuel C.
Bush Freddie M.
Edelberg Nathan
Gibson Robert P.
Lieberman Eli
The United States of America as represented by the Secretary of
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