Antenna Structure With Segmented Radiating Portions For Isolation
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Solution Overview
Problem
Designing an antenna structure for electronic devices with full-screen designs poses a challenge in maintaining clearance areas without compromising antenna performance, particularly in ensuring isolation and radiation efficiency.
Innovation Solution
The antenna structure incorporates a housing with strategically placed radiating portions, feed portions, and ground portions, along with matching circuits and load circuits, to optimize impedance matching and isolation between radiating elements, allowing for effective operation in multiple frequency bands while preventing interference from electronic components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the antenna structure uses traditional designs with electronic components, then the device can achieve basic wireless communication, but the clearance area of the antenna is compressed and isolation between radiating elements deteriorates
Solution Approach 1:
The antenna structure is divided into multiple independent radiating portions (first radiating portion, second radiating portion, third radiating portion) with distinct functions and frequency ranges. Each portion is spatially separated and independently fed, allowing them to operate simultaneously without mutual interference while maintaining adequate clearance area.
Solution Approach 2:
The patent utilizes three-dimensional spatial arrangement by placing radiating portions at different locations on the housing (front surface, side surfaces, back surface) and using multiple ground portions at different heights and positions. This dimensional distribution enables adequate isolation between elements while preserving overall antenna clearance area.
2Adaptability or versatility
If the antenna structure incorporates multiple radiating portions for wide bandwidth, then frequency coverage is improved, but device complexity increases
Solution Approach 1:
The antenna structure achieves multi-functionality by designing three radiating portions that can operate across different frequency bands (sub-6GHz, 24GHz, 38GHz) simultaneously. Each radiating portion serves multiple communication standards (5G NR, Wi-Fi, Bluetooth), allowing a single antenna system to handle diverse wireless communication needs without requiring separate antenna structures for each frequency band.
3Volume of moving object
If electronic components are placed close to the antenna, then device compactness is improved, but radiation efficiency decreases due to interference
Solution Approach 1:
Multiple ground portions are introduced as intermediary elements between the radiating portions and electronic components. These ground portions act as shielding barriers that block electromagnetic interference from electronic components while maintaining compact device layout. The ground portions are strategically positioned to provide isolation without increasing overall device volume.
Data Source
AI summary
An antenna structure includes a border frame, a first feed portion, a second feed portion, and two ground portions. The border frame includes a first gap and a second gap passing through the border frame, thereby defining a first radiating portion and a second radiating portion. The first feed portion is electrically coupled to the first radiating portion to supply an electric current to the first radiating portion. The second feed portion is electrically coupled to the second radiating portion to supply an electric current to the second radiating portion. The two ground portions are disposed between the first feed portion and the second feed portion and separated from each other. The two ground portions are electrically coupled to the first radiating portion or the second radiating portion.