Expansion joint for wave guides

Details Expansion joint for wave guides Expansion joint for wave guides

1979-03-26

1981-01-27

Nussbaum, Marvin L.

Wave transmission lines and networks

Long line elements and components

Waveguide elements and components

333 33, 333208, 333257, H01P 106, H01P 130

Patent

active

042478383

ABSTRACT:
The expansion joint includes a first component and a second component which have the same inside dimensions as the wave guide and are free to move longitudinally with respect to each other, the first component having exclusively a wave guide structure, the second component including a trap positioned at least partially between said components and outside the first component, the electric length of said trap being equal to half the wavelength of the central frequency transmitted by the wave guide, said components being separated longitudinally at the trap by a distance which varies when the length of the wave guide varies. The trap can be folded to reduce its bulk.
Application to long wave guides.

REFERENCES:
patent: 2473834 (1949-06-01), Tuller
patent: 2523320 (1950-09-01), Mieher et al.
patent: 2837723 (1958-06-01), Krantz et al.
patent: 4020431 (1977-04-01), Saunders

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