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AssigneeMassachusetts Institute of Technology
InventorsDaniel R. Cohn, Leslie Bromberg, Benjamin Lax, Ward D. Halverson, Paul P. Woskov
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The structures for confining or guiding high frequency electromagnetic radiation have surfaces facing the radiation constructed of high temperature superconducting materials, that is, materials having critical temperatures greater than approximately 35.degree.K. The use of high temperature superconductors removes the constraint of the relatively low energy gaps of conventional, low temperature superconductors which precluded their use at high frequencies. The high temperature superconductors also provide larger thermal margins and more effective cooling. Devices which will benefit from the structures of the invention include microwave cavities, millimeter-wave/far infrared cavities, gyrotron cavities, mode converters, accelerators and free electron lasers, and waveguides.
Structure for confining or guiding electromagnetic radiation having wavelengths in the range of approximately 10 .mu.m to one centimeter, said structure having surfaces exposed to the radiation and said surface being covered with superconducting materials having critical temperatures greater than 35.degree.K.
Guided transmission line for transmitting radiation having wavelengths less than one centimeter, said transmission line comprising surfaces exposed to the electromagnetic radiation, said surfaces being covered with superconducting materials having critical temperatures greater than 35.degree.K.
Rectangular and circular waveguides for guiding electromagnetic radiation having wavelengths less than one centimeter, said waveguides having surfaces exposed to the radiation, said surfaces being covered with superconducting materials having critical temperatures greater than 35.degree.K.
Mode converter for guiding electromagnetic radiation having wavelengths less than one centemeter, said mode converter having surfaces exposed to the radiation, said surface being covered with superconducting materials having critical temperatures greater than 35.degree.K.
Microwave cavity for confining electromagnetic radiation having wavelengths less than one centimeter, said microwave cavity comprising surfaces exposed to the electromagnetic radiation, said surfaces being covered with superconducting materials having critical temperatures greater than 35.degree.K.
Gyrotron for producing millimeter-wave radiation, said gyrotron comprising surfaces exposed to the radiation, said surfaces being covered with superconducting materials having critical temperatures greater than 35.degree.K.
Dependencies are inferred from the claim text.