Wireless Headphone UWB Antenna Geometry for Interference Reduction
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Solution Overview
Problem
Current wireless headphones operating in the 2.4 GHz to 2.5 GHz frequency band experience mutual interference with electronic products, limiting their performance and range.
Innovation Solution
An ultra-wideband antenna designed for wireless headphones, operating in the 6 GHz to 9 GHz frequency range, featuring a unique geometry with slots and angled portions to enhance transmission, is integrated into the headband portion, along with a radio frequency module and coaxial cable connection, to increase signal strength and range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wireless headphones use the 2.4 GHz to 2.5 GHz frequency band, then compatibility with existing wireless standards is maintained, but mutual interference with electronic products occurs and transmission range is limited
Solution Approach 1:
The patent changes the operating frequency parameter from the conventional 2.4-2.5 GHz band to the ultra-wideband 6-9 GHz range. This parameter change allows the wireless headphones to operate in a less congested frequency spectrum, avoiding mutual interference with other electronic products while maintaining wireless communication functionality. The antenna structure is specifically designed with slots and angled portions to resonate effectively in this new frequency range.
2Ease of manufacture
If the antenna structure is simplified for ease of manufacture, then production cost decreases, but signal transmission distance and efficiency are reduced
Solution Approach 1:
The antenna is segmented into distinct functional portions: a first portion with slots for frequency selectivity and a second portion with angled main body and extension portions for radiation optimization. This segmentation allows each part to be optimized for its specific function while maintaining overall manufacturability. The slots in the first portion create resonant cavities that enhance signal generation, while the angled structure of the second portion improves radiation pattern without requiring complex assembly.
Solution Approach 2:
The patent introduces angular dimensions to the antenna structure, with the main body portion and extension portion forming angles between 85-135 degrees. This dimensional change from a simple linear or planar design to an angular three-dimensional structure enhances the radiation characteristics and transmission distance. The angled geometry creates multiple reflection paths and improves signal propagation in different directions, extending the effective transmission range while keeping the manufacturing process relatively simple.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The ultra-wideband antenna significantly reduces interference and increases the maximum transmission distance up to 13.5 meters, improving signal efficiency and reducing signal loss, while allowing for better compatibility with electronic devices.
Implementation Method 1
An ultra-wideband antenna designed for wireless headphones, operating in the 6 GHz to 9 GHz frequency range
Data Source
AI summary
An ultra-wideband antenna for a wireless headphone is provided, which includes a first portion and a second portion. One side of the first portion has at least two slots. The second portion is laterally adjacent to and separated from the first portion. The second portion includes a main body portion and an extension portion, and one side of the main body portion is close to the at least two slots, and another side of the main body portion is connected to the extension portion, in which an included angle between the main body portion and the extension portion is in a range of between 85 degrees and 135 degrees. A wireless headphone including the above-mentioned ultra-wideband antenna is also provided.