Transmission system for wireless mobile electronic devices

By designing the coupling between driven and parasitic antenna elements in a wireless microphone device, current concentration at the end of the ground plane is achieved, solving the problems of quasi-isotropic radiation and interference in antenna design, and improving the reliability and communication range of wireless connections.

CN122267490APending Publication Date: 2026-06-23SONOVA AG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SONOVA AG
Filing Date
2025-12-19
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

In wireless microphone devices, antenna design faces the challenge of balancing miniaturization and high performance, especially in achieving quasi-isotropic radiation patterns and reducing environmental interference.

Method used

By setting a driven first antenna element and a parasitic second antenna element at the end of the ground plane, the coupled tuning of the magnetic dipole and electric dipole radiation modes of the two is used to form a near-isotropic radiation pattern, reducing the current concentration at the end of the ground plane to reduce interference.

Benefits of technology

It achieves more reliable wireless connectivity and a greater communication range, reduces the antenna's sensitivity to environmental interference, and meets the performance requirements of compact devices.

✦ Generated by Eureka AI based on patent content.

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Abstract

A transmission system for a wireless mobile electronic device is provided, comprising a ground plane (20), a first antenna element separate from the ground plane and implemented as a strip (30) comprising a feed end (31) configured to be coupled to a transceiver (60) to feed RF signals to the first antenna element, and a free end (32), wherein the strip comprises a first arm (33) comprising the feed end and a second arm (34, 36, 38) extending from the first arm at an angle, and a second antenna element (40) separate from the first antenna element, shorted to the ground plane to act as a parasitic element. The first antenna element and the second antenna element are positioned adjacent to each other at an end (23) of the ground plane, wherein the second arm of the first antenna element is pointing towards the second antenna element, and wherein the arrangement formed by the first antenna element and the second antenna element does not have a plane of symmetry.
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