Stacked biconical omnidirectional antenna

Details Stacked biconical omnidirectional antenna Stacked biconical omnidirectional antenna

1995-03-28

1996-07-09

Wimer, Michael C.

Communications: radio wave antennas

Antennas

Wave guide type

343878, 343905, H01Q 1304

Patent

active

055348807

ABSTRACT:
An omnidirectional antenna with minimal gain variation over the 360.degree. azimuth. A plurality of biconical antennas are stacked vertically. A radome covering the antenna and cylindrically encasing the antenna supports the stack of biconical antennas. A bundle of transmission lines is helically wound about the cylindrical periphery of the biconical antennas, preferably at an angle between 37.degree. and 41.degree.. Each biconical antenna is formed by two truncated flared apart reflecting surfaces that are connected by a nonconductive spacing collar between their truncated portions.

REFERENCES:
patent: 2532551 (1950-12-01), Jarvis
patent: 2533236 (1950-12-01), Felsenheld
patent: 2711533 (1955-06-01), Litchford
patent: 2726388 (1955-12-01), Kandoian et al.
patent: 2866194 (1958-12-01), Stavis et al.
patent: 2907032 (1959-09-01), Wheeler
patent: 3124802 (1964-03-01), von Dall'Armi
patent: 3605099 (1971-09-01), Griffith
patent: 3795914 (1974-03-01), Pickles
patent: 3942180 (1976-03-01), Rannou et al.
patent: 3943522 (1976-03-01), Ben-Dov
patent: 5019832 (1991-05-01), Ekdahl
patent: 5204688 (1993-04-01), Loiseau et al.
1984 International Symposium Digest Antennas and Propagation, vol. I, 1984, Boston, MA, pp. 173-176, McNamara et al. "Some Design Considerations for Biconical Antennas".

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