Communications: radio wave antennas – Antennas – Active sleeve surrounds feed line
Patent
1977-06-14
1978-09-19
Lieberman, Eli
Communications: radio wave antennas
Antennas
Active sleeve surrounds feed line
343830, 343895, H01Q 944
Patent
active
041157834
ABSTRACT:
A new type of radiating structure with rugged high frequency design comprng essentially a single hybrid monopole which utilizes capacitive coupling from a open-ended transmission line to accomplish its broadband characteristics. The monopole is a metal conductor concentric with the transmission line and is separated from a ground plane by an adjustable gap that may be effectively used for fine tuning the antenna. By utilizing helical springs as the conductors this hybrid monopole antenna has self-erecting or pop-up design capability.
REFERENCES:
patent: 2487567 (1949-11-01), Lindenblad
patent: 2512704 (1950-06-01), Willoughby
patent: 2613319 (1952-10-01), Lisbin et al.
Edelberg Nathan
Elbaum Saul
Gibson Robert P.
Lieberman Eli
The United States of America as represented by the Secretary of
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