A UWB antenna module, a UWB antenna module and a washing apparatus

CN121726753BActive Publication Date: 2026-06-09GOERTEK MICROELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GOERTEK MICROELECTRONICS CO LTD
Filing Date
2026-02-13
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In existing washing equipment, traditional antennas suffer from severe signal aliasing and low signal-to-noise ratio in the resonant cavity environment of stainless steel inner drum, making it difficult to accurately detect parameters such as the moisture content of clothes. Furthermore, directional antennas are large in size and have complex structures, making it difficult to balance performance stability and anti-interference capabilities in a compact space.

Method used

The UWB antenna module employs four microstrip antenna elements. Through the design of "three transmit and one receive" microstrip antenna elements and the spacing between adjacent transmit antenna elements being 0.3 to 0.4 times the target frequency wavelength, combined with a stacked circuit board and a feed network, it achieves directional beam radiation and suppresses multipath reflection interference.

Benefits of technology

Under the constraint of compact size, high-precision non-contact detection is achieved, solving the problems of signal aliasing and multipath interference, ensuring the reliability and stability of detection, and adapting to the installation space of washing equipment.

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Abstract

This application provides a UWB antenna module, a UWB antenna assembly, and a washing device. The UWB antenna module includes: a circuit board comprising a radiating layer and a feeding layer stacked together, the feeding layer integrating a feeding network; and four microstrip antenna elements, each disposed on the radiating layer and connected to the feeding network. The four microstrip antenna elements have identical physical dimensions, and their centers are collinear and arranged horizontally. Each microstrip antenna element includes three transmitting antenna elements and one receiving antenna element arranged sequentially in the horizontal direction. The three transmitting antenna elements are equally spaced, and the center-to-center distance between two adjacent transmitting antenna elements is 0.3-0.4 times the wavelength corresponding to the center frequency of the 9th UWB channel.
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Citation Information

Patent Citations

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