Antenna Radiation Element with Parasitic Elements for Beam Control
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Solution Overview
Problem
The existing antenna radiating elements have complex structures, making them difficult to form and manufacture, and result in high production and maintenance costs due to the need for die-casting integrated forming.
Innovation Solution
The proposed solution involves adding parasitic element assemblies around crosswise disposed dipoles to perform secondary reflection and convergence of radiation signals, allowing the antenna radiating element to be formed using sheet metal parts, simplifying the structure and reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If die-casting integrated forming is used to ensure structural strength, then the antenna radiating element achieves required use strength, but the manufacturing complexity and cost increase significantly
Solution Approach 1:
The antenna radiating element is divided into multiple independent components: dipoles, parasitic elements, and a supporting plate. These segmented parts are connected through fastening structures rather than requiring integrated die-casting, thereby reducing manufacturing complexity while maintaining structural strength through modular assembly
Solution Approach 2:
The supporting plate integrates multiple functions: it holds the dipoles and parasitic elements, provides structural support, and serves as a mounting base. By merging these functions into a single component, the overall structure is simplified without compromising strength requirements
2Strength
If die-casting integrated forming is used to ensure structural strength, then the antenna radiating element achieves required use strength, but the production and maintenance costs increase
Solution Approach 1:
By segmenting the antenna radiating element into separate dipoles, parasitic elements, and supporting plate, each component can be manufactured independently using simpler and less expensive processes, avoiding the high cost of die-casting integrated forming while still achieving required strength through proper material selection and connection design
Solution Approach 2:
The fastening structures enable easy assembly and disassembly of the antenna radiating element components, allowing for simplified production processes and reduced maintenance costs through modular replacement rather than complete component replacement
3Volume of moving object
If the antenna width is increased to control beam width and increase gain, then the antenna coverage effect improves, but the antenna volume and weight increase
Solution Approach 1:
Parasitic elements are introduced as intermediary components that interact with the electromagnetic fields generated by the dipoles. These parasitic elements modify the radiation pattern and beam characteristics without requiring physical expansion of the antenna structure, thereby achieving beam width control in a compact volume
Solution Approach 2:
Instead of controlling beam width by increasing antenna width in the horizontal dimension, the invention uses parasitic elements arranged in vertical and spatial configurations to achieve beam shaping. This transitions the problem from a two-dimensional width issue to a three-dimensional spatial arrangement problem, enabling compact design
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
This approach results in a simpler, lighter antenna with reduced volume, achieving a narrower beam width and lower production and maintenance costs, while maintaining effective radiation performance.
Implementation Method 1
a radiation signal transmitted by the dipole (1) is reflected and converged by using the parasitic element assembly (2)
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The present invention discloses an antenna radiating element and an antenna, where the antenna radiating element includes a pair of crosswise disposed dipoles and parasitic element assemblies; the parasitic element assembly is disposed in an included angle formed by two neighboring dipole arms of the crosswise disposed dipoles; the parasitic element assembly is fastened to the dipole; and a radiation signal transmitted by the dipole is reflected and converged by using the parasitic element assembly. In embodiments of the present invention, an antenna radiating element can be formed by additionally disposing parasitic element assemblies around a pair of crosswise disposed dipoles. The antenna radiating element has a very simple structure, may be directly formed by sheet metal parts, and is convenient to process and manufacture. In the embodiments of the present invention, the parasitic element assembly performs secondary reflection and convergence on a radiation signal transmitted by the dipole, so as to generate new radiation, which helps expand a caliber of an original dipole, thereby converging a beam width of an entire antenna on a horizontal plane. This achieves an effect of reducing a volume of the entire antenna, the antenna has a simple structure and a light weight, and therefore both production costs and maintenance costs are reduced.