Dipole antenna fed by coaxial active rod

Details Dipole antenna fed by coaxial active rod Dipole antenna fed by coaxial active rod

1979-12-20

1981-03-03

Lieberman, Eli

Communications: radio wave antennas

Antennas

Active sleeve surrounds feed line

343821, H01Q 916

Patent

active

042544220

ABSTRACT:
An antenna for transmission or reception of broadcast signals has a primary element and a secondary element coupled to one another capacitively and inductively. The primary element has a continuous center conductor surrounded by a concentric conductor interrupted at its midpoint to present two adjacent feed line terminals. The corresponding outer ends of the conductors are electrically joined. The secondary element is parallel to the primary element and overlaps its complete length. It is preferably tubular, to encase and seal the primary element.

REFERENCES:
patent: 2648768 (1953-08-01), Woodward
patent: 2700112 (1955-01-01), Jasik
patent: 3419872 (1968-12-01), St. Vrain et al.
patent: 3611397 (1971-10-01), Poliakoff
The ARRL Antenna Book, Published by American Radio League Inc., 1977, pp. 30, 31, 65-67.

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