Cavity resonator having ancillary cylinder for suppressing paras

Details Cavity resonator having ancillary cylinder for suppressing paras Cavity resonator having ancillary cylinder for suppressing paras

1977-12-23

1980-02-12

Gensler, Paul L.

Wave transmission lines and networks

Resonators

Cavity resonator

333251, H01P 116, H01P

Patent

active

041886003

ABSTRACT:
A conductive body with a cylindrical cavity, designed to resonate at a certain operating frequency in the TE.sub.01 mode, has an input opening at one end and a conductive insert at the opposite end which alters the effective axial length for parasitic waves propagated in the TM.sub.11 mode. The insert may have the form of a smaller cylinder with a closed end beyond that of the main cavity, increasing the effective length, or of a set of radial vanes reducing the effective length. The insert, in either case, may be axially shiftable to tune the cavity to different resonant frequencies.

REFERENCES:
patent: 2500417 (1950-03-01), Kinzer
patent: 2593155 (1952-04-01), Kinzer
patent: 2593234 (1952-04-01), Wilson
patent: 2632806 (1953-03-01), Preston
patent: 3899759 (1975-08-01), Hines et al.

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