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US 2020/0403286 A1Published application
Dielectric cavity notch filter
AssigneeKnowles Cazenovia, Inc.
InventorJared Parker Burdick
Life of this patent
Estimating the term…
Abstract
A band stop filter can include a circuit board having a first surface and an opposing second surface. The circuit board can have a transmission line on the first surface. The band stop filter can include a dielectric cavity resonator physically coupled to the second surface of the circuit board. The dielectric cavity resonator can have a coupling aperture configured to magnetically couple the dielectric cavity resonator to the transmission line, and to cause excitation of the dielectric cavity resonator in a second order transverse electric (TE) mode.
Claims20
A band stop filter comprising:
- a circuit board having a first surface and an opposing second surface, the circuit board having a transmission line on the first surface;
- and
- a dielectric cavity resonator physically coupled to the second surface of the circuit board, and having a coupling aperture configured to magnetically couple the dielectric cavity resonator to the transmission line, and to cause excitation of the dielectric cavity resonator in a second order transverse electric (TE) mode.
A method comprising:
- providing a circuit board having a first surface and an opposing second surface, the circuit board having a transmission line on the first surface;
- and
- physically coupling a dielectric cavity resonator to the second surface of the circuit board, enabling a coupling aperture of the dielectric cavity resonator to magnetically couple the dielectric cavity resonator to the transmission line, and to cause excitation of the dielectric cavity resonator in a second order transverse electric (TE) mode.
Dependencies are inferred from the claim text.