Communications: radio wave antennas – Antennas – With means for moving directive antenna for scanning,...
Patent
1975-04-28
1976-04-13
Lieberman, Eli
Communications: radio wave antennas
Antennas
With means for moving directive antenna for scanning,...
343868, 343877, 343882, H01Q 702
Patent
active
039507564
ABSTRACT:
The antenna structure possesses a multi-sided configuration with means being provided for equally changing the lengths of at least two sides facing each other to thereby adjustably vary the physical size of the antenna. A parasitic reflector having a similar configuration and means for adjustability is positioned a predetermined distance behind the antenna proper for increasing the gain of the antenna structure.
REFERENCES:
patent: 918255 (1909-04-01), Athearn
patent: 2702345 (1955-02-01), Walter
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