Communications equipment filters

The filter for communication devices addresses thickness and weight challenges by using a foldable base plate to form a cavity and position resonators, resulting in a slim and lightweight design with reduced insertion loss.

JP2025527624AActive Publication Date: 2025-08-22KMW INC
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Patent Information

Application Number
JP2025511313
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-08-23
Filing Date
2023-08-24
Publication Date
2025-08-22
Estimated Expiration
2043-08-24

AI Technical Summary

Technical Problem

Conventional radio frequency filters face challenges in reducing thickness and weight due to the use of bonding processes and additional conductive structures, limiting their application in slim antenna devices and increasing insertion loss.

Method used

A filter for communication devices is constructed using a foldable conductive base plate that forms a cavity and positions resonators within, eliminating the need for bonding and joining processes, thereby reducing thickness and insertion loss.

Benefits of technology

The filter achieves a slim and lightweight design by constructing a cavity through folding, improving communication reliability and reducing the size of antenna devices without increasing weight.

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Abstract

The advantages of this type of connector include ease of slim manufacturing, reduced insertion loss, and improved resonance characteristics. The filter for a communication device includes a base plate made of a conductive material that is manufactured in an unfolded state and foldable to form a cavity therein and, when folded, position a plurality of resonators protruding a predetermined length in a thickness direction or width direction within the cavity. The plurality of resonators include a resonating characteristic end whose tip portion integrally connects the tips of a pair of other portions that extend from within the cavity in the thickness direction.
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Citation Information

Patent Citations

  • High-pass filter

    WO2020027355A1

  • JPS3511962B1