Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1997-05-29
2000-02-01
Wong, Don
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343795, 343812, H01Q 928
Patent
active
060208619
ABSTRACT:
An elongated antenna, especially an omnidirectional antenna, has a vertical, elongated rod-like structure with two metal profile elements (10, 20) provided with dipole elements (2) as integral parts thereof. The rod-like structure (1) is surrounded by a tube (3). The antenna elements (2) are coupled in parallel to a single transmission coaxial cable (8). The antenna has a high gain and low losses.
REFERENCES:
patent: 2945231 (1960-07-01), Scheldorf
patent: 3303506 (1967-02-01), Diebold
patent: 3394379 (1968-07-01), Pickles
patent: 5724051 (1998-03-01), Mailandt et al.
Jonsson Stefan
Karlsson Bo
Pettersson John
Allgon AB
Clinger James
Wong Don
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