Compact Coupled-Resonance Antenna for Wideband UAV Integration
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Solution Overview
Problem
Existing large-bandwidth antennas have complex structures that hinder miniaturization, making them unsuitable for small devices like unmanned aerial vehicles and remote controllers.
Innovation Solution
An antenna design featuring a substrate with first and second radiators on one surface and a third radiator on the opposite surface, forming a coupled resonance point, along with feed lines, to achieve a larger bandwidth in a smaller volume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If complex structural designs are used to achieve larger bandwidths, then bandwidth is improved, but device complexity increases and miniaturization becomes difficult
Solution Approach 1:
The patent utilizes the third dimension by placing radiators on both the front surface and back surface of the substrate. The first radiator is on the front surface, the second radiator is on the back surface, and the third radiator is also on the back surface, creating a three-dimensional spatial arrangement that achieves large bandwidth without increasing planar complexity
Solution Approach 2:
The antenna is segmented into multiple independent radiators (first, second, and third radiators) that can be independently designed and optimized. Each radiator contributes to different frequency bands, allowing the overall bandwidth to be expanded through the combination of segmented elements rather than a single complex structure
2Adaptability or versatility
If complex structural designs are used to achieve larger bandwidths, then bandwidth is improved, but volume increases making miniaturization difficult
Solution Approach 1:
By transitioning from a two-dimensional planar arrangement to a three-dimensional configuration with radiators on both surfaces of the substrate, the patent achieves large bandwidth within a compact volume. The vertical separation between front and back surface radiators provides additional electromagnetic space without increasing the overall footprint or thickness significantly
Solution Approach 2:
The multiple radiators are nested within a compact substrate structure, with the first, second, and third radiators arranged in a space-efficient manner on the front and back surfaces. This nested arrangement allows all radiator elements to be contained within a small volume, achieving miniaturization while maintaining large bandwidth
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 allows for miniaturization while maintaining a larger bandwidth, improving antenna performance and reducing interference, suitable for small devices.
Implementation Method 1
the first radiator, the second radiator and the third radiator form a coupled resonance point
Data Source
AI summary
The present disclosure provides an antenna, a wireless signal processing device, and an unmanned aerial vehicle. The antenna includes: a substrate having a first surface and a second surface opposite the first surface; a first radiator and a second radiator disposed on the first surface, the first radiator and the second radiator facing opposite each other, the first radiator being located at one end near a head of the substrate, and the second radiator being located at one end near a root of the substrate; a third radiator disposed on the second surface, the third radiator being mirror symmetric with a portion of a structure of the first radiator and conducting with the second radiator, so that the first radiator, the second radiator and the third radiator form a coupled resonance point; and a feed line connected with the first radiator, the second radiator and the third radiator.