Communications: radio wave antennas – Antennas – With electrical shield
Patent
1978-05-26
1980-02-19
Moore, David K.
Communications: radio wave antennas
Antennas
With electrical shield
343767, H01Q 1502, H01Q 152
Patent
active
041897307
ABSTRACT:
A shield for use with a rotatable, elongated, cylindrical transmitter having a cylindrical insulator and a metal cylindrical shield on its exterior with both the insulator and shield having an elongated, slotted opening to permit reception of signals originating from one direction, but which shields signals originating from peripheral directions.
REFERENCES:
patent: 3568208 (1971-03-01), Hatcher et al.
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