Multi-band Antenna Structure with T-shaped Support for Smartphone Interference
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Solution Overview
Problem
The limited space in smartphones for mounting multiple antennas, such as WiFi, GPS, and LTE antennas, leads to interference issues among them, affecting their functionality.
Innovation Solution
A T-shaped supporting structure with multiple antennas and switching portions, along with specific inductor and capacitor circuits, allows for efficient frequency matching and multi-band operation, reducing spatial requirements and minimizing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple antennas are mounted in the smartphone to satisfy various communication functions, then the communication functionality is improved, but the antenna spacer space is insufficient and interference between antennas occurs
Solution Approach 1:
The patent extends the antenna structure from a two-dimensional plane to a three-dimensional space by adding a vertical supporting portion that protrudes from the base plate. This allows antennas to be arranged in different spatial dimensions (horizontal and vertical), effectively increasing the available mounting space while maintaining compact smartphone dimensions.
Solution Approach 2:
The antenna structure is divided into distinct functional segments: a base plate for mounting, a supporting portion for spatial extension, and multiple antenna elements positioned at different locations. This segmentation allows each antenna to be independently positioned and optimized, reducing mutual interference while utilizing the available space efficiently.
2Adaptability or versatility
If multiple antennas are mounted in the smartphone, then various communication functions are achieved, but the antennas may be influenced by each other so that function of the antennas may be affected
Solution Approach 1:
The supporting portion acts as an intermediary structure that physically separates and spatially isolates the multiple antenna elements. By positioning antennas at different locations on the base plate and extending vertically, the structure reduces electromagnetic coupling and interference between antennas, ensuring each antenna maintains its intended communication function.
Solution Approach 2:
Different regions of the antenna structure are optimized for specific functions: the base plate provides a stable mounting platform with signal sources, the supporting portion provides spatial separation, and antenna elements are positioned at specific locations to minimize mutual interference. This local optimization ensures each antenna operates reliably for its designated communication function.
Data Source
AI summary
An antenna structure of multi-band frequency and simple structure includes a base plate, a supporting portion and an antenna mounted on the supporting portion. The base plate has a signal source thereon. The antenna has an input end. The antenna includes a first antenna, a second antenna and a connecting portion coupled with the first antenna and the second antenna, the antenna also has a first switch portion, a second switch portion and a third switch portion, the base plate has a first circuit and a second circuit. The input end is mounted on the connecting portion, the first switch portion is mounted between the signal source and the input end, the second switch portion is mounted on the first antenna, and the third switch portion is mounted on the second antenna.