Invention Grant
- Patent Title: Dielectric cavity notch filter
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Application No.: US16904252Application Date: 2020-06-17
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Publication No.: US11431067B2Publication Date: 2022-08-30
- Inventor: Jared Parker Burdick
- Applicant: Knowles Cazenovia, Inc.
- Applicant Address: US NY Cazenovia
- Assignee: Knowles Cazenovia, Inc.
- Current Assignee: Knowles Cazenovia, Inc.
- Current Assignee Address: US NY Cazenovia
- Agency: Loppnow & Chapa
- Agent Matthew C. Loppnow; Roland K. Bowler, II
- Main IPC: H01P1/20
- IPC: H01P1/20 ; H05K3/30 ; H05K1/02

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.
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