Multi-element Mobile Antenna Structure for Metal Interference
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Solution Overview
Problem
Existing mobile device antennas are affected by nearby metal elements, causing interference that impacts wireless communication quality, necessitating a novel solution to enhance performance.
Innovation Solution
A mobile device antenna structure comprising multiple radiation elements and a dielectric substrate, where specific radiation elements are coupled to signal sources and ground voltages, forming a planar antenna structure that extends in various directions, optimizing frequency bands and impedance matching to minimize interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional single antenna is used, then the device structure is simple, but the wireless communication quality is degraded due to metal interference
Solution Approach 1:
The patent divides the antenna system into multiple independent radiation elements (first, second, third, fourth, and fifth radiation elements) with distinct configurations. Each element is positioned and oriented differently to achieve diverse radiation patterns, reducing mutual interference and improving overall communication reliability in the presence of metal components.
Solution Approach 2:
The patent combines multiple radiation elements into a single integrated antenna structure mounted on the dielectric substrate. This merged structure achieves wideband operation and improved radiation gain by leveraging the collective performance of all elements while maintaining a unified physical form factor suitable for mobile devices.
2Reliability
If multiple radiation elements are added to overcome metal interference, then the wireless communication quality improves, but the antenna structure complexity increases
Solution Approach 1:
The antenna structure is designed to perform multiple functions simultaneously: it provides wideband operation across different frequency ranges, achieves impedance matching, and mitigates metal interference effects. The same set of radiation elements serves all these purposes without requiring additional separate components.
Solution Approach 2:
The patent employs a composite structure combining multiple radiation elements with a dielectric substrate. This composite design enables the antenna to achieve superior electromagnetic performance through the synergistic interaction between the metallic radiation elements and the dielectric material, improving radiation gain while managing complexity.
3Adaptability or versatility
If the antenna structure is optimized for wideband operation, then the frequency coverage is improved, but the impedance matching becomes more difficult
Solution Approach 1:
Different radiation elements are configured with specific local characteristics (different orientations, positions, and dimensions) to optimize performance for particular frequency ranges. The first, second, and third elements extend in one direction while the fourth and fifth elements are positioned differently, creating localized optimization zones that collectively achieve wideband operation with manageable impedance matching.
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 antenna structure achieves wideband operations, supporting conventional WLAN and next-generation Wi-Fi 6e, with improved radiation gain and impedance matching, maintaining communication quality even in the presence of metal components.
Implementation Method 1
a first radiation element (110), a second radiation element (120), a third radiation element (130), a fourth radiation element (140), and a fifth radiation element (150... An antenna structure is formed by the first radiation element (110), the second radiation element (120), the third radiation element (130), the fourth radiation element (140), the fifth radiation element (150), and the dielectric substrate (170)
Implementation Method 2
The first radiation element (110), the second radiation element (120), the third radiation element (130), the fourth radiation element (140), and the fifth radiation element (150) are disposed on the dielectric substrate (170)
Data Source
AI summary
A mobile device includes a first radiation element, a second radiation element, a third radiation element, a fourth radiation element, a fifth radiation element, and a dielectric substrate. The first radiation element and the third radiation element are coupled to a signal source. The second radiation element is coupled to a ground voltage. The second radiation element is adjacent to the first radiation element. The first radiation element, the second radiation element, and the third radiation element substantially extend in the same direction. The fourth radiation element is coupled to the ground voltage. The fourth radiation element is between the first radiation element and the second radiation element. The fifth radiation element is coupled to the ground voltage. An antenna structure is formed by the first radiation element, the second radiation element, the third radiation element, the fourth radiation element, the fifth radiation element, and the dielectric substrate.