Conductive Casing Antenna Structure for Metal Shell Signal Interference
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Solution Overview
Problem
In electronic devices with metal shells, the limited configuration space makes it difficult to design antennas that are not influenced by the metal shell, leading to compromised signal transmission and reception capabilities.
Innovation Solution
The electronic device integrates a conductive first casing and second casing connected through a first connecting unit, forming an antenna structure with a feeding unit that includes a capacitor component, allowing for electromagnetic signal transmission and reception without the need for an additional antenna, thereby avoiding interference from the conductive casings and enhancing signal quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an additional antenna is configured in the electronic device, then the antenna can transmit and receive electromagnetic signals, but the antenna will be influenced by the metal shell causing signal interference
Solution Approach 1:
The patent merges the antenna function with the existing conductive casings. The first and second casings are electrically connected through a connecting unit to form a dipole antenna structure, eliminating the need for a separate additional antenna and avoiding signal interference from the metal shell.
Solution Approach 2:
The conductive casings serve dual purposes: they provide the structural housing for the electronic device and simultaneously function as the antenna elements for electromagnetic signal transmission and reception.
2Reliability
If the antenna is installed at a peripheral portion of the display screen to avoid metal shell interference, then signal transmission is improved, but the configuration space for the antenna is limited and design difficulty increases
Solution Approach 1:
The existing casings that serve as structural components are made to also function as antenna elements, eliminating the need for separate antenna installation and reducing design complexity.
Solution Approach 2:
The antenna structure is merged with the casing structure, where the connecting unit electrically connects the first and second casings to form a functional dipole antenna without requiring additional space or complex configuration.
3Reliability
If the first casing and second casing are conducted through the first connecting unit, then an antenna structure is formed for signal transmission, but the impedance matching and resonance need to be ensured
Solution Approach 1:
The feeding unit acts as an intermediary component between the signal source and the dipole antenna formed by the casings. It includes a feeding point and a capacitor component that provides impedance matching and ensures proper resonance for efficient electromagnetic signal transmission.
Solution Approach 2:
The capacitor component in the feeding unit adjusts the electrical parameters (impedance and resonance frequency) of the antenna system to achieve optimal signal transmission and reception performance.
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
This configuration enables efficient electromagnetic signal transmission and reception, avoiding interference from the metal casings and improving the device's signal transmission and reception ability, with a resonance ensured by the increased impedance of the feeding unit.
Implementation Method 1
the capacitor component is connected with the feeding point, and the electronic device forms an antenna structure with the first casing, the second casing, the first connecting unit and the feeding unit and delivers an electromagnetic signal via the feeding unit
Implementation Method 2
the electronic device forms an antenna structure with the first casing, the second casing, the first connecting unit and the feeding unit and delivers an electromagnetic signal via the feeding unit
Data Source
AI summary
An electronic device including a first casing, a second casing, at least one first connecting unit and at least one feeding unit is provided. The first casing includes a conductive material. The second casing includes a conductive material. The first casing and the second casing are conducted with each other through the first connecting unit. The feeding unit is electrically connected to the first casing and has a feeding point and a capacitor component, wherein the capacitor component is connected with the feeding point, and the electronic device forms an antenna structure with the first casing, the second casing, the first connecting unit and the feeding unit and transmits an electromagnetic signal via the feeding unit.