GAS-FILLED WAVEGUIDE Russian patent published in 1997 - IPC

FIELD: SHF equipment of transmission lines. SUBSTANCE: invention is related to equipment of SHF transmission lines, it be used to transmit waves of centimeter range in relay lines and other radio engineering systems where transmission of electromagnetic energy (including high-level energies) to distances of tens and hundreds of meters at minimal material expenditures is required or requirement for mobility (time of deployment and closing-down) of feeder path is substantial. Invention is aimed at increased strength and operational reliability of structure of gas-filled metal-and-dielectric waveguide with provision of stability of polarization of field of asymmetric working H₁₁ wave in centimeter range and shape of cross-section of hollow channel of waveguide practically independent of magnitude of excessive pressure of gas. Gas-filled waveguide with current conductive walls of multilayer film foiled material has hollow channel filled with gas and two additional flat waveguides of antiresonance width bordering on it and filled with high-frequency dielectric. Hollow channel is divided into three compartments with the use of two additional dielectric ribbons welded with longitudinal overlapping joints to main foiled ribbons forming walls of hollow channel and additional flat waveguides. One compartment is round section and is filled with gas under excessive pressure and two other compartments adjoining to it in plane of arrangement of additional flat waveguides have triangular shape and are filled with gas under normal pressure. Additional flat waveguides proper are provided with ribbon cable made of high-strength dielectric material. EFFECT: increased strength and operational reliability of gas-filled waveguide. 3 cl