Layered Antenna Element Structure for Wide Bandwidth in Low Profile
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional antenna designs face challenges in balancing miniaturization with high performance, particularly in reducing the antenna profile while maintaining wide bandwidth.
Innovation Solution
An antenna element design featuring a first radiator, a second radiator, and a radiator array with specific spatial arrangements and hollow regions, allowing for dual resonances in different frequency bands, thereby broadening the bandwidth and enabling miniaturization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the antenna profile is reduced to achieve miniaturization, then the size of the terminal device is reduced, but the bandwidth of the antenna deteriorates
Solution Approach 1:
The antenna is divided into multiple radiators (first radiator, second radiator, third radiator, fourth radiator) arranged in different layers. Each radiator contributes to different frequency bands, allowing the antenna to achieve wide bandwidth coverage without increasing the overall profile height.
Solution Approach 2:
The patent transitions from a single-layer radiator design to a multi-layer three-dimensional structure. By stacking radiators in different layers with specific spacing, the antenna achieves enhanced bandwidth performance while maintaining a compact profile, effectively utilizing the vertical dimension.
2Adaptability or versatility
If the size of the radiator is increased to improve antenna performance and bandwidth, then the Q value is reduced, but the space occupied by the antenna increases
Solution Approach 1:
Instead of using a single large radiator, the antenna employs multiple smaller radiators distributed across different layers. This segmentation allows the antenna to achieve wide bandwidth through collective resonance effects while maintaining a compact overall volume.
Solution Approach 2:
The patent utilizes vertical layering to distribute radiators in the height direction rather than expanding them horizontally. This dimensional transition allows multiple radiators to coexist in a compact footprint, achieving wide bandwidth without increasing the planar area occupied.
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 design achieves wide bandwidth in multiple frequency bands with a reduced antenna profile, facilitating the miniaturization of electronic devices and improving signal-to-noise ratio through dual polarization.
Implementation Method 1
The first radiator can generate one resonance, and the radiator array can generate another resonance in a lower operating frequency band
Implementation Method 2
The second radiator can generate one resonance, and the first radiator and the radiator array can generate another resonance in a higher operating frequency band
Data Source
AI summary
Antenna elements and electronic devices are provided, including an antenna element includes a first radiator, a second radiator, and a radiator array. The first radiator is connected to a ground plane through a grounding component, the second radiator is spaced from the ground plane and disposed opposite to the ground plane, and the second radiator and the first radiator are spaced apart. The radiator array is spaced from the first radiator and disposed opposite to the first radiator, and is located on a side that is of the first radiator and that is further from the ground plane. The radiator array includes at least two sub-radiators, and the at least two sub-radiators are spaced from each other in an extension direction of a plane on which the radiator array is located. The first radiator includes a first hollow region, and the radiator array includes a second hollow region.