Grounded Antenna Structure With Noise Suppression for Tight Layouts
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Solution Overview
Problem
Designing antennas in mobile communication devices with limited space is challenging due to interference from nearby circuits and metal environments, leading to reduced antenna efficiency and increased resonance frequencies.
Innovation Solution
An antenna device with a noise suppression part connected to the antenna structure through a common grounding part, positioned at a predetermined distance, effectively suppressing unnecessary resonance noises and improving performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If antennas are placed close to circuits and metal components in limited space, then device integration is improved, but antenna efficiency deteriorates due to interference and resonance
Solution Approach 1:
A noise suppression part is introduced as an intermediary component between the antenna and surrounding metal environments. This noise suppression part includes a grounding structure that is electrically connected to the antenna's grounding terminal, creating a shielding effect that blocks interference from circuits and metal components while allowing the antenna to maintain its radiation function
Solution Approach 2:
The patent utilizes the grounding system to convert harmful interference into beneficial noise suppression. By connecting the noise suppression part to the grounding terminal, interference signals are directed to ground through the suppression structure, transforming the harmful electromagnetic interference into a controlled grounding path that protects the antenna
2Reliability
If noise suppression structures are added to eliminate resonance, then antenna performance is improved, but device complexity increases
Solution Approach 1:
The noise suppression part is merged with the existing grounding system of the antenna. The suppression structure shares the grounding terminal with the antenna, combining two functions (noise suppression and grounding) into a single integrated structure rather than adding separate independent components
Solution Approach 2:
The grounding terminal serves multiple functions simultaneously: it provides the necessary grounding for the antenna's operation and also serves as the connection point for the noise suppression part. This multi-functionality reduces the need for additional dedicated grounding structures
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 solution enhances antenna efficiency by eliminating interference, maintaining performance in harsh environments without increasing size or cost, using a laser direct forming process for efficient fabrication.
Implementation Method 1
The noise suppression part is disposed at one side of the antenna structure... The noise suppression part and the antenna structure are separately disposed
Implementation Method 2
The noise suppression part is connected to the antenna structure through a common grounding part
Data Source
AI summary
An antenna device and an electronic apparatus are provided. An antenna device includes an antenna structure and a noise suppression part. The noise suppression part is disposed at one side of the antenna structure. The noise suppression part and the antenna structure have a predetermined distance therebetween. The noise suppression part is connected to the antenna structure through a common grounding part. The noise suppression part and the antenna structure are separately disposed.