Dielectric Substrate Antenna Unit for Compact High-Directivity Wireless
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Solution Overview
Problem
Existing Yagi antennas are large in size and primarily used outdoors, making it difficult to apply their high directivity and long-haul communication advantages to smaller wireless coverage devices like ceiling antennas and wireless routers, and they have poor overall receiving performance due to suboptimal antenna unit arrangements.
Innovation Solution
A multi-antenna assembly with antenna units featuring dielectric substrates and conductive directors, where the maximum gain direction aligns with the substrate's surface extension, and the units are arranged to form equilateral or regular triangular prisms with specific angular spacing, enhancing directivity and receiving performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional Yagi antennas are used to achieve high directivity and long-haul communication, then communication performance is improved, but the antenna size becomes large and occupies significant space
Solution Approach 1:
The patent changes the material parameter from traditional metal rods to dielectric substrate with conductor wires, and changes the structural parameter by integrating the reflector into the substrate. This allows maintaining high directivity while significantly reducing antenna size for indoor applications
Solution Approach 2:
The patent uses composite materials consisting of dielectric substrate and conductor wires to replace traditional metal rod structures. The dielectric substrate serves as both the reflector and the mounting base, creating a compact integrated structure that maintains performance while reducing size
2Reliability
If antenna units are arranged to improve receiving performance, then overall system performance is enhanced, but the device complexity increases
Solution Approach 1:
The patent employs asymmetric arrangement of antenna units with specific angular spacing (120 degrees for three units, or 90 degrees for four units) rather than uniform distribution. This asymmetric configuration optimizes receiving performance by creating favorable interference patterns while maintaining manageable system complexity
Solution Approach 2:
The patent transitions from two-dimensional planar arrangement to three-dimensional spatial arrangement by mounting antenna units at specific angles around the vertical axis. This dimensional approach improves receiving performance through spatial diversity while organizing complexity in a structured manner
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 achieves high directivity, broad band coverage, high gain, and easy commissioning, enabling effective wireless communication with improved data transmission performance and miniaturized antenna designs that meet the requirements of new network protocols.
Implementation Method 1
a dielectric reflection surface (1) and at least one antenna group located on the same side of the dielectric reflection surface (1)
Data Source
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AI summary
The present invention relates to an antenna unit, including a dielectric substrate and an antenna conductor attached to the dielectric substrate, where a maximum gain direction of the antenna unit is consistent with an extension direction of a surface of the dielectric substrate. The present invention also relates to an antenna assembly with the antenna unit, a multi-antenna assembly, and a wireless connection device with the antenna unit, the antenna assembly or the multi-antenna assembly. The antenna unit of the present invention has high directivity, and has advantages of broad bands, high gains, and easy commissioning, so that both the multi-antenna assembly and the wireless connection device have high performance.