Folded Side-Mounted UWB Antenna Layout for Compact Positioning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The challenge of miniaturizing ultra-wideband (UWB) antennas in consumer electronic devices is exacerbated by design requirements for miniaturization, lightness, and thinness, limiting space for antenna placement and affecting use convenience.
Innovation Solution
A conductive plate with two plate parts at a specified angle and radiation parts on each part, forming a compact antenna structure with directional radiation capabilities, allowing placement on device sides and improving flexibility and symmetry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the antenna structure is miniaturized to meet design requirements for miniaturization, lightness, and thinness, then the space occupied by the antenna is reduced, but the radiation performance and positioning accuracy deteriorate
Solution Approach 1:
The patent transitions from planar antenna structures to three-dimensional folded structures. The conductive plate is folded along multiple fold lines to create a spatial configuration that occupies less projected area while maintaining adequate electrical path lengths for effective UWB operation. This dimensional transformation allows the antenna to achieve miniaturization without compromising radiation performance
Solution Approach 2:
The antenna design embeds multiple functional elements within a compact folded structure. The conductive plate is folded back on itself, creating nested layers that maximize the use of available three-dimensional space. This nesting approach allows the antenna to maintain its electrical dimensions while reducing its physical footprint in the device housing
2Adaptability or versatility
If the antenna size is reduced, then the flexibility of disposing the antenna in the electronic device is improved, but the positioning accuracy deteriorates
Solution Approach 1:
By folding the conductive plate into three-dimensional configurations, the antenna achieves compact dimensions suitable for placement in various locations within thin electronic devices. The spatial arrangement of the folded structure maintains the necessary electrical characteristics for accurate UWB positioning while enabling flexible disposal options
Solution Approach 2:
The folded conductive plate creates asymmetric current distribution paths that enhance the antenna's directional radiation characteristics. This asymmetry in the folded structure allows for optimized signal transmission in specific directions, improving positioning accuracy despite the reduced overall size
3Volume of moving object
If the conductive plate is folded to reduce antenna projection area, then the miniaturization is achieved, but the structural complexity increases
Solution Approach 1:
The conductive plate is divided into multiple segments by fold lines, allowing each segment to be independently positioned and optimized. This segmentation enables the antenna to achieve complex three-dimensional configurations from a single continuous conductive element, reducing the need for additional separate components while maintaining the desired compact form factor
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 solution reduces antenna size while maintaining radiation performance, enhancing placement flexibility and use convenience in electronic devices.
Implementation Method 1
The first radiation part includes a first side edge and a third side edge that are disposed opposite to each other. The first side edge is electrically connected to the first plate part, and the third side edge is closer to the second radiation part than the first side edge. The second radiation part includes a second side edge and a fourth side edge that are disposed opposite to each other. The second side edge is electrically connected to the second plate part, and the fourth side edge is closer to the first radiation part than the second side edge. In addition, the third side edge and the fourth side edge are spaced away from each other, to form a slot between the third side edge and the fourth side edge. In this way, the antenna structure can radiate a signal through the slot.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
This application discloses an antenna and an electronic device, and relates to the field of communication technologies. The antenna includes a conductive plate and at least three antenna structures. The conductive plate includes two plate parts disposed at a first included angle, and first included angle is less than 180°. Each antenna structure is located on a side that is of the conductive plate and that is away from the first included angle. Each antenna structure includes a first radiation part and a second radiation part, each radiation part is electrically connected to a plate part, and there is a gap between the two radiation parts. In addition, two of the at least three antenna structures are arranged in a first direction, and two of the at least three antenna structures are arranged in a second direction. The first direction and the second direction are set at a specified included angle. The second radiation parts of the antenna structures are located on a same side of a second plate part. This can achieve a positioning function of the antenna, and further helps reduce a size of the entire antenna. The antenna may be disposed on a side surface of the electronic device, to improve use convenience of the electronic device.