Antenna device
By positioning a metal element perpendicular to the chip antenna's current flow, the antenna device enhances V-polarized waves to ensure uniform signal directivity and reliable wireless communication despite human body interference.
JP7810615B2Active Publication Date: 2026-02-03KK TOKAI RIKA DENKI SEISAKUSHO
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Patent Information
- Application Number
- JP2022107598
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2022-07-04
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2042-07-04
AI Technical Summary
Technical Problem
Chip antennas face challenges in achieving uniform signal directivity in all directions around the substrate plane due to current flow parallel to the substrate, which weakens H-polarized waves and makes them susceptible to human body interference, affecting wireless communication reliability.
Method used
Incorporating a metal element on the substrate perpendicular to the current flow direction of the chip antenna, resonating with the electric field to enhance V-polarized waves and form uniform signal directivity.
Benefits of technology
The configuration achieves substantially uniform signal directivity in all directions, maintaining reliable wireless communication even in the presence of human body interference by enhancing V-polarized waves.
✦ Generated by Eureka AI based on patent content.
Abstract
To form an approximately equal signal directivity to all circumferential directions of the substrate plane with a simple configuration.SOLUTION: An antenna device is provided, comprising a chip antenna disposed on a substrate and a metal element disposed above or below the chip antenna in a direction perpendicular to the plane of the substrate.SELECTED DRAWING: Figure 3
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