Multiple mitered circular waveguide bend

Wave transmission lines and networks – Long line elements and components – Waveguide elements and components

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Details

343890, 333254, H01P 102

Patent

active

045648263

ABSTRACT:
A device for providing a low VSWR match at a bend between two straight circular waveguides has an odd number of at least three circular waveguide sections of approximately equal length along their axes mitered at both of their ends, the length chosen to be an odd multiple of a quarter guide wavelength at the desired operating frequency, and the waveguide sections being mitered so that the device is symmetrical about the bisecting plane of the bend. The ratios of the angles between the adjacent waveguide sections around the bend are approximately binomial coefficients in order to obtain a maximally flat passband.

REFERENCES:
patent: 2583401 (1952-01-01), Weltmer
patent: 2708686 (1955-05-01), Bernard et al.
patent: 3672202 (1972-06-01), Barber
patent: 3977706 (1976-08-01), Schneider

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