High-power broadband antenna

Details High-power broadband antenna High-power broadband antenna

1994-12-21

1997-02-04

Le, Hoanganh T.

Communications: radio wave antennas

Antennas

With lumped reactance for loading antenna

343722, 343858, H01Q 900

Patent

active

056003358

ABSTRACT:
A high-power broadband antenna comprises an impedance matching transformer electrically coupled to a radio frequency source generating an input signal having a base wavelength corresponding to the lowest frequency of the input signal. The impedance transformer is electrically coupled to at least two vertical antenna sections. Each antenna section comprises a plurality of substantially collinear electrically conductive radiating elements fixed to an electrical insulator mounted on a horizontal ground plane. Each radiating element has a length appropriate to effect optimum overall efficiency of the high-power broadband antenna over the frequency bandwidth of the input signal. At least two loading elements are each electrically coupled between the radiating elements in each antenna section. Each loading element comprises a parallel combination of a resistor, an inductor, and a capacitor to effect optimum overall efficiency of the high-power broadband antenna over the frequency bandwidth of the input signal.

REFERENCES:
patent: 3774221 (1973-11-01), Francis
patent: 3803615 (1974-04-01), Goodbody
patent: 3984839 (1976-10-01), Ray, Jr.
patent: 4545059 (1985-10-01), Spinks, Jr. et al.
patent: 5111213 (1992-05-01), Jahoda et al.
patent: 5173713 (1992-12-01), Yves et al.
patent: 5233362 (1993-08-01), Villaseca et al.
Abramo, "Broadband, High-Power, 2-30 MHz, Twin-Whip Antenna", NCCOSC RDTE V Technical Document 2597, Jan. 1994.
Halpern et al., "A Study of Whip Antennas for Use in Broadband HF Communication Systems", RM Associates, Feb. 1986.

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