Apparatus and methods for launching and screening electromagneti

Details Apparatus and methods for launching and screening electromagneti Apparatus and methods for launching and screening electromagneti

1976-12-30

1978-09-12

Smith, Alfred E.

Wave transmission lines and networks

Miscellaneous

Multipactor applications

333 98R, 333 98M, H01P 116, H01P 300

Patent

active

041141210

ABSTRACT:
A screen for a dipole-mode waveguide is described. The screen is in the form of a metal cylinder, with or without longitudinal gaps, and this screen is useful with the type of dipole-mode waveguide formed by a generally cylindrical structure of elongated parallel spaced apart conductors. External radial vanes and an internal diametric vane for the structure are also described for suppressing unwanted modes at the launching point, as is a slot launching arrangement for launching the dipole mode without exciting unwanted modes.

REFERENCES:
patent: 2677055 (1954-04-01), Allen
patent: 3668574 (1972-06-01), Barlow
patent: 3845426 (1974-10-01), Barlow
patent: 3990026 (1976-11-01), Barlow
Barlow, "Screened Surface Waves and some Possible Applications", Proc. IEEE, vol. 112, No. 3, Mar. 1965, pp. 477-482.
King, "Transmission Line Theory", McGraw-Hill, 1955, pp. 35-39.
Beam et al., "Shielded Dielectric Rod Waveguides", AIEE Trans., vol. 70, 1955, pp. 874-880.

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