High-Power Broadband Antenna.
Patent, Filed 21 Dec 94, patented 4 Feb 97,
DEPARTMENT OF THE NAVY WASHINGTON DC
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A high-power broadband antenna comprises an impedance matching transformer electrically coupled to a radio fre- quency source generating an input signal having a base wavelength corresponding to die 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 cot- 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 die high-power broadband antenna over the frequency bandwidth of the input signal.
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