Spherical cavity mode transcendental control methods and systems

Details Spherical cavity mode transcendental control methods and systems Spherical cavity mode transcendental control methods and systems

1996-01-29

1998-03-24

Pascal, Robert

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333232, H01P 1207

Patent

active

057317500

ABSTRACT:
The present invention discloses a microwave filter (10) for controlling the degenerate resonant modes of a spherical cavity resonator (12). The spherical cavity resonator (12) has an inner spherical surface (14) which defines a spherical cavity (16). A first and a second set of tuning elements (18) extend inward from the inner spherical surface (14) of the resonator (12) into the spherical cavity (16). One of the first set of tuning elements is located near an electromagnetic field peak, either a radial electric field peak or a surface magnetic field peak, of at least one of the degenerate modes for tuning a resonance thereof. One of the second set of tuning elements is located between electromagnetic field peaks, either radial electric or surface magnetic field peaks, of degenerate modes in at least one pair of the degenerate modes for intercoupling thereof.

REFERENCES:
patent: 2890421 (1959-06-01), Currie et al.
patent: 3697898 (1972-10-01), Blachier et al.
patent: 4410865 (1983-10-01), Young et al.

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