Multi-band Antenna Structure for Compact Wireless Devices
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Solution Overview
Problem
The existing antenna structures in wireless communication devices are complex and occupy significant space, making miniaturization challenging due to their bulky design.
Innovation Solution
The proposed antenna structure comprises three antennas (first, second, and third antennas) with unique radiating portions and feed points, allowing for adjustable placement and separate signal feed points, enabling operation in multiple frequency bands without interference, thus achieving a compact and flexible design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional antenna structures are used, then signal reception and transmission across multiple frequency bands is achieved, but the antenna structure becomes complicated and occupies large space
Solution Approach 1:
The patent implements a single antenna structure that can operate across multiple frequency bands (LTE, Wi-Fi, Bluetooth, GPS) by designing a radiating element with multiple feed points. Each feed point is configured to support specific frequency bands, allowing one antenna to perform the function of multiple traditional antennas, thereby reducing structural complexity while maintaining multi-frequency adaptability
2Adaptability or versatility
If traditional antenna structures are used, then signal reception and transmission across multiple frequency bands is achieved, but the antenna occupies large space in the wireless communication device
Solution Approach 1:
The patent merges the functions of multiple antennas into a single integrated antenna structure. By combining multiple feed points and a unified radiating element, the design eliminates the need for separate antenna elements that would otherwise occupy distinct spaces in the device, thereby achieving multi-frequency operation within a compact footprint
Solution Approach 2:
The single antenna structure is designed to universally support multiple frequency bands through its multiple feed points, each configured for specific bands. This universal design replaces what would traditionally require multiple specialized antennas, significantly reducing the total space occupied by antenna systems in the wireless communication device
3Adaptability or versatility
If multiple antennas are used for different frequency bands, then carrier aggregation in LTE-Advanced is supported, but the overall device size increases
Solution Approach 1:
The patent merges multiple antenna functions into a single physical antenna structure with multiple feed points. This consolidation allows carrier aggregation to be supported through signal processing at the feed points rather than through physically separate antennas, thereby enabling LTE-Advanced functionality without increasing device volume
Data Source
AI summary
An antenna structure includes a first antenna with a first feed point feeding current, a first radiating portion, a second radiating portion, and a first ground point. The first radiating portion is electrically connected to the first feed point and receives radiation signals in a first frequency band. The second radiating portion is electrically connected to the first feed point and receives and sends radiation signals in a second frequency band. The first ground point is spaced apart from the first feed point and is electrically connected to the second radiating portion.