COMMUNICATION SYSTEM

By positioning the antenna structure with a gap smaller than the radio wave wavelength and directional characteristics parallel to the mounting surface, wireless communication is maintained effectively in low-height enclosures.

DE102021100343B4Active Publication Date: 2026-03-12DENSO CORP
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Patent Information

Application Number
DE102021100343
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Priority Date
2020-01-15
Filing Date
2021-01-12
Publication Date
2026-03-12
Estimated Expiration
2041-01-12

AI Technical Summary

Technical Problem

Wireless communication within an enclosure becomes difficult when the enclosure is reduced in size and height, as the distance between the antenna opening surface and the enclosure wall becomes smaller than the wavelength of the radio wave used, leading to propagation difficulties.

Method used

The antenna structure is positioned such that the gap between its outer shell and the enclosure wall is smaller than the radio wave wavelength, with directional characteristics parallel to the mounting surface, allowing radio waves to propagate effectively.

Benefits of technology

This configuration enables stable wireless communication within a low-height enclosure by ensuring radio waves propagate in a direction parallel to the mounting surface, enhancing communication probability and stability.

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Abstract

communication system arranged in a housing and comprising several communication devices (2, 4) that communicate wirelessly with each other, wherein - the multiple communication devices include a specific communication device that is arranged on a mounting surface (501); - the specific communication device has at least one antenna structure, and the at least one antenna structure contains at least one antenna (21, 41); - the at least one antenna structure is arranged between the mounting surface and a predetermined wall surface (301) of the enclosure (200), and the predetermined wall surface is one of the wall surfaces of the enclosure; - which has at least one antenna structure with an outer shell; - a gap between the outer shell of the at least one antenna structure and the predetermined wall surface of the housing is smaller than a wavelength of a radio wave used in the wireless communication of the multiple communication devices; and - the at least one antenna of the specific communication device has a directional effect in a direction parallel to the mounting surface.
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