Antenna Structure Resonating with Metal Casing Slits and Slots
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Solution Overview
Problem
Metallic housings in notebook computers interfere with antenna performance due to shielding effects, and traditional antenna placement around display panels limits the reduction of external frame sizes.
Innovation Solution
An antenna structure with a metal casing featuring slits and slots, where an antenna assembly with a substrate and antenna pattern forms loops that resonate with the metal casing to generate frequency bands, allowing for effective antenna performance while being integrated into the metal housing, and is placed on the sides to reduce the external frame width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If metal housing is used to replace plastic material, then appearance design and aesthetics are improved, but antenna performance deteriorates due to shielding effect
Solution Approach 1:
The patent converts the harmful shielding effect of the metal housing into a beneficial resonance effect. By designing the antenna pattern to resonate with the metal housing structure, the housing that originally blocked signals now enhances antenna performance through resonant coupling, allowing the antenna to operate effectively within the metal enclosure.
2Reliability
If antenna is disposed around display panel, then antenna performance is improved, but external frame size cannot be reduced
Solution Approach 1:
The patent transitions the antenna from a two-dimensional planar pattern to a three-dimensional structure that utilizes the vertical space within the metal housing. By forming loops that extend in multiple dimensions and coupling with the three-dimensional metal housing structure, the antenna achieves good performance without occupying the horizontal space around the display panel, thus allowing smaller external frames.
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 favorable performance despite being in a metal housing and allows for a thinner external frame by optimizing antenna placement and design, enabling efficient frequency band generation and reduced frame width.
Implementation Method 1
The antenna pattern resonates with the slit and the slot to generate a first frequency band and a second frequency band, respectively
Data Source
AI summary
An antenna structure including a metal casing and an antenna assembly is provided. The metal casing has a slit and a slot adjacent to each other. A length of the slit is greater than a length of the slot, and a width of the slit is less than a width of the slot. The antenna assembly is located in the metal casing and near the slit and the slot. An antenna assembly includes a substrate and an antenna pattern. The antenna pattern is disposed on the substrate and encloses a closed zone. The antenna pattern includes a feed end and a ground end to form a first loop and a second loop. Orthographic projections of the antenna pattern and the enclosed closed zone on the metal casing overlap with the slot. The antenna pattern resonates with the slit and the slot to generate a first frequency band and a second frequency band. An electronic device having the antenna structure is further provided.