Mobile Terminal Antenna Configuration for Reduced Interference
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In mobile terminals, the reduction in bezel size complicates antenna placement and leads to interference between antennas operating at different frequency bands, affecting wireless communication performance.
Innovation Solution
The implementation of an additional Wi-Fi antenna with a shared ground line and a radiator design that minimizes mutual interference by altering the radiation pattern and electric field distribution, allowing for efficient operation even when antennas are closely spaced.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the bezel size is reduced to increase display area, then the display area is improved, but antenna placement becomes complicated and interference between antennas increases
Solution Approach 1:
The patent introduces a third dimension by placing antennas on the side surfaces of the terminal body rather than only on the front and back faces. This spatial reconfiguration allows antennas to be positioned away from the display area while maintaining compact form factor, thereby resolving the conflict between reduced bezel size and antenna placement requirements.
Solution Approach 2:
The patent divides the antenna system into multiple independent antennas with different frequency characteristics, placing them at different locations on the terminal body. This segmentation allows each antenna to operate independently with optimized positioning, reducing mutual interference while accommodating the reduced bezel design.
2Productivity
If multiple antennas are configured to transmit and receive more data, then data transmission capability is improved, but mutual interference between antennas increases
Solution Approach 1:
The patent utilizes the side surfaces of the terminal body as additional spatial dimensions for antenna placement. By positioning antennas on lateral surfaces rather than confining them to front and back faces, the patent achieves greater spatial separation between multiple antennas, enabling simultaneous operation with reduced interference while maintaining enhanced data transmission capability.
Solution Approach 2:
The patent employs asymmetric positioning of antennas with different frequency characteristics at different locations on the terminal body. This asymmetric arrangement optimizes the spatial relationship between antennas to minimize coupling and interference, allowing multiple antennas to operate simultaneously for enhanced data transmission.
Data Source
Figure 1A
Figure 1b~1c
Figure 2
AI summary
A mobile terminal, which comprises: a case including an electric component mounting part therein; a middle frame mounted on the case; a main board mounted on the case; a first antenna spaced apart from and arranged in parallel to the middle frame, and having a first end that is open and a second end connected to the middle frame; a first feed line connected to a first part of the first antenna so as to transmit a signal; a ground line connected to a second part of the first antenna and performing grounding; a second antenna connected to the ground line; and a second feed line connected to the second antenna, increases the number of Wi-Fi antennas, thereby enabling data transmission speed to become faster.