Filter with coating layer and shielding layer
JP7884460B2Inactive Publication Date: 2026-07-03KYOCERA AVX COMPONENTS CORP
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- KYOCERA AVX COMPONENTS CORP
- Filing Date
- 2021-05-04
- Publication Date
- 2026-07-03
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Technical Problem
Passive filter devices are susceptible to electromagnetic interference, which can adversely affect their performance.
Method used
A filter design incorporating a monolithic substrate with conductive layers, a coating layer, and a shielding layer to provide electromagnetic shielding, with specific dimensions and materials to enhance performance characteristics.
Benefits of technology
The filter exhibits improved performance with a narrow bandpass frequency range and excellent out-of-band rejection, including insertion loss responses greater than 10 dB per GHz, and is suitable for frequencies above 10 GHz.
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Smart Images
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Abstract
The filter may include a monolithic substrate and at least one conductive layer formed above a top surface of the monolithic substrate and along at least a portion of one or more of a first top edge of the monolithic substrate or a second top edge of the monolithic substrate. A cover layer may be disposed above the top surface of the monolithic substrate. A shielding layer may connect to one or more of the conductive layers at the first top edge or the second top edge of the monolithic substrate. The shielding layer may include a first portion formed above a first side surface of the cover layer, a second portion formed above the top surface of the cover layer, and a third portion formed above the second side surface of the cover layer.
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