Low pass harmonic absorber

Details Low pass harmonic absorber Low pass harmonic absorber

1976-10-29

1978-06-20

Smith, Alfred E.

Wave transmission lines and networks

Automatically controlled systems

With control of equalizer and/or delay network

333 22R, 333 81B, H01P 120, H01P 126, H01P 512

Patent

active

040964574

ABSTRACT:
A microwave low pass harmonic absorber having a main waveguide which passes a desired fundamental frequency. A plurality of shunt waveguides are disposed on the walls of the main waveguide for providing an absorptive path for the harmonic energy. Each of the shunt waveguides includes at least one ridge for lowering the cutoff frequency of the shunt waveguide. In another embodiment, the shunt waveguides include two ridges disposed opposite each other.

REFERENCES:
patent: 2590511 (1952-03-01), Craig et al.
patent: 3187277 (1965-06-01), Wantuch
patent: 3353123 (1967-11-01), Met
patent: 3593220 (1971-07-01), Rooney
Lance-"Introduction to Microwave Theory and Measurements", McGraw Hill, New York 1964; title page & pp. 96-97.

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