Multi-Element Antenna Structure for Wide High-Frequency Bandwidth
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Solution Overview
Problem
Electronic devices, such as notebook computers, face challenges in achieving high-frequency bandwidth due to insufficient antenna structure design, which affects communication quality.
Innovation Solution
The antenna structure includes a first radiating element, a second radiating element, a third radiating element, and a grounding element, with specific configurations such as opposite directions, electrical connections, and predetermined gaps to enhance frequency bandwidth, allowing for high-frequency operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the antenna structure is designed to meet low profile height requirement, then the device thickness is reduced, but the high frequency bandwidth becomes insufficient
Solution Approach 1:
The antenna structure is divided into multiple radiating elements (first, second, and third radiating elements) with different configurations. Each element contributes to different frequency bands, allowing the compact antenna to achieve wide bandwidth coverage from low to high frequencies through segmented functional design
Solution Approach 2:
The grounding portion is designed with multi-directional extensions (first, second, third, fourth, and fifth sections extending in different directions). This spatial dimensionality change allows the compact antenna structure to achieve enhanced bandwidth without increasing profile height, by utilizing spatial arrangement rather than simple linear expansion
2Device complexity
If traditional antenna structures are used, then the device structure is simple, but the communication quality deteriorates due to insufficient high frequency bandwidth
Solution Approach 1:
The antenna is segmented into multiple radiating elements and grounding sections, where each segment serves specific frequency ranges. This segmentation enables the antenna to maintain reliable communication quality across wide bandwidths while keeping the overall structure manageable through modular design
Solution Approach 2:
The antenna structure is designed to perform multiple functions simultaneously - supporting both low frequency and high frequency operations, providing wide bandwidth coverage, and maintaining compact form factor. The multi-functional design ensures reliable communication quality without requiring separate antennas for different frequency bands
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 effectively generates operating frequency bands that meet high-frequency bandwidth requirements, including ranges from 1710 MHz to 2690 MHz and 3 GHz to 6 GHz, improving communication quality.
Implementation Method 1
The first radiating element, the second radiating element and the third radiating element are used to generate a first operating frequency band having a frequency range between 1710 MHz and 2690 MHz and a second operating frequency band ranging from 3 GHz to 4 GHz
Data Source
AI summary
An electronic device and an antenna structure thereof are provided. The antenna structure includes a first, a second and a third radiating element and a grounding element. The first radiating element includes a first and a second radiating portion, a feeding portion and a grounding portion. The grounding portion includes a first, a second, a third, a fourth and a fifth section. The first section is connected between the first radiating portion and the feeding portion. The grounding element is connected with the fourth section and the fifth section. The second radiating element is connected with the grounding element. The second radiating element includes a third radiating portion, and the third and the second radiating portion are coupled with each other. The third radiating element is connected with the feeding portion, and the third radiating element and the first section are coupled with each other.