Dual-Surface Antenna Structure for Wider 5G Bandwidth
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Solution Overview
Problem
Current electronic devices, such as tablets and laptops, face challenges in accommodating antenna structures due to insufficient internal space, leading to deficient bandwidth in 5G frequency bands.
Innovation Solution
The proposed antenna structure includes a substrate with separate but coupling radiating elements, a grounding element, and a feeding element, where the second radiating element and first radiating element are positioned on opposite surfaces with overlapping projected areas, allowing for increased bandwidth by optimizing the placement and coupling of these elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the antenna structure uses conventional single-surface radiating elements, then the device can be designed to be thin and light, but the bandwidth is deficient
Solution Approach 1:
The patent transitions from conventional single-surface radiating elements to a three-dimensional structure by placing radiating elements on both the first and second opposite surfaces of the substrate. This dimensional expansion allows the antenna to achieve wider bandwidth while maintaining thin device profile, as the elements utilize space in the Z-direction (thickness direction) rather than requiring larger planar area.
Solution Approach 2:
The patent embeds multiple radiating elements within the substrate thickness, with first radiating elements on the first surface and second radiating elements on the second surface. These nested elements couple with each other through the substrate, creating a compact multi-layer structure that increases bandwidth without significantly increasing the overall device thickness.
2Adaptability or versatility
If the antenna structure places multiple radiating elements on the same surface, then the bandwidth increases, but the device area increases
Solution Approach 1:
Instead of placing multiple radiating elements side-by-side on the same surface (increasing planar area), the patent utilizes the thickness dimension by positioning radiating elements on opposite surfaces of the substrate. This vertical stacking approach increases bandwidth while maintaining a compact footprint area.
Solution Approach 2:
The patent combines multiple radiating elements (first and second radiating elements on each surface) into a single integrated antenna structure that couples together. This merging of elements across the substrate thickness creates a unified broadband antenna system that achieves wide bandwidth without requiring separate large-area elements.
3Adaptability or versatility
If the antenna structure uses overlapping projected areas of radiating elements, then the bandwidth is enhanced, but the structural complexity increases
Solution Approach 1:
The patent achieves bandwidth enhancement through a systematic three-dimensional arrangement where radiating elements on opposite surfaces are positioned with overlapping projected areas. This vertical alignment strategy creates controlled coupling between layers while maintaining manufacturing feasibility through standard PCB-like fabrication processes.
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 design enhances the bandwidth of the antenna structure, effectively addressing the issue of deficient bandwidth in conventional antenna designs by increasing the antenna's operational frequency range and efficiency.
Implementation Method 1
a first radiating element (1) disposed on the substrate and comprising a first radiating portion (11), a second radiating portion (12), a third radiating portion (13), a feeding portion (14), and a grounding portion (15)
Implementation Method 2
the second radiating element and the first radiating element are separate from each other but couple with each other
Data Source
AI summary
An antenna structure and an electronic device are provided. The antenna structure includes a substrate with opposing first and second surfaces, a first radiating element with a first radiating portion and a second radiating portion, a third radiating portion, a feeding portion, and a grounding portion that are connected to the first radiating portion, a second radiating element separate from but coupling with the first radiating portion, a grounding element connected to the grounding portion, and a feeding element. The first radiating portion, the feeding portion, and the grounding portion are disposed on the first surface. The second radiating portion and the third radiating portion are disposed on the second surface. A projected area of the second radiating portion onto the first surface partially overlaps with the feeding portion. A projected area of the third radiating portion onto the first surface partially overlaps with the grounding portion.