Telescoping multiband antenna

Details Telescoping multiband antenna Telescoping multiband antenna

1985-04-10

1987-04-14

Lieberman, Eli

Communications: radio wave antennas

Antennas

Active sleeve surrounds feed line

343903, 343730, H01Q 918

Patent

active

046582606

ABSTRACT:
A plural band telescopic antenna, including a band for frequencies much higher than the frequencies of the AM/FM band, is realized by making one telescopic section into a dipole high frequency antenna with its coaxial cable feed line extending through the telescopic antenna to the feed point of the one section. A double-tuned dipole embodiment and different arrangements for coupling the feed line through a rotational drive force applying mechanism are shown. In one embodiment, the line feed is also used for coupling mechanical extension and retraction forces to the one section.

REFERENCES:
patent: 2365886 (1944-12-01), Lehmann
patent: 3139620 (1964-06-01), Leidy
patent: 3229298 (1965-01-01), Morgan
patent: 3371348 (1965-02-01), Simons
patent: 3541557 (1970-11-01), Miley
patent: 4095229 (1978-06-01), Elliott
patent: 4117492 (1978-09-01), Arnold
patent: 4323902 (1982-04-01), Hussey
patent: 4325069 (1982-04-01), Hills
patent: 4593289 (1986-06-01), Newcomb
Antenna Engineering Handbook, McGraw Hill Book Company, 1961, H. Jasik, pp. 22-2 through 22-14.

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