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US 6,184,815 B2Granted
Transmission line electromagnetic reflection reduction treatment
OwnerMarvin Lee Carlsoninventor
Life of this patent
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Abstract
A transmission line electromagnetic reflection reduction treatment is disclosed herein. This invention relates to radar cross section reduction in vehicles including aircraft, submarines, warships, tanks, troop carriers, and mobile weapons, and reduction of electromagnetic (EM) interference from civil engineering structures including bridges, buildings, power lines, and antennas.
Claims23
A structure to attenuate reflection of electromagnetic radiation of a given frequency range from a plurality of surfaces coming together at an edge, comprising:
- a. a long continuous strip of conductive material where the width of said strip is less than ¼ wavelength at the maximum frequency in the given frequency range,
- b. a dielectric spacer that maintains not greater than ¼ wavelength separation at the maximum frequency in the given frequency range, between said edge and said strip,
- whereby the electromagnetic return signal from said edge is significantly reduced.
A structure to attenuate reflection of electromagnetic radiation of a given range of frequencies comprising:
- a plurality of long continuous strips of conductive material where the width of said strips is less than ¼ wavelength at the maximum frequency in the given frequency range, and
- b. a dielectric spacer that maintains a separation of less than ¼ wavelength at the maximum frequency in the given frequency range between reflecting structure and said strips and,
- c. said plurality of strips are separated from each other by less than ½ wavelength at the maximum frequency in the given frequency range,
- whereby the electromagnetic return signal from said structure is significantly reduced.
1 more element
Dependencies are inferred from the claim text.