Dielectric Slot Antenna Layout for Uniform High-Frequency Manufacturing
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Solution Overview
Problem
Radial line slot antennas face challenges in large-area manufacturing due to deformation in metal waveguides and reduced slot sizes at higher operating frequencies, making it difficult to maintain design requirements.
Innovation Solution
A slot antenna design featuring a glass dielectric layer with a radiation layer and a shielding layer, where the dielectric layer's thickness is correlated with the electromagnetic wave wavelength, and slots are arranged in loops or spirals with uniform spacing, ensuring efficient electromagnetic wave distribution and reducing size while maintaining waveguide uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If metal waveguides are used in radial line slot antennas, then the antenna achieves low loss and simple structure, but deformation occurs during large-area manufacturing making it difficult to maintain design requirements
Solution Approach 1:
The patent changes the material parameter from metal to dielectric, transforming the waveguide structure into a planar dielectric-based design. This parameter change eliminates the deformation issues inherent in metal waveguide manufacturing while maintaining the desired electromagnetic wave transmission characteristics, thereby resolving the contradiction between ease of manufacture and manufacturing precision.
Solution Approach 2:
The patent employs composite material structures combining dielectric layers with conductive patterns (slots and shielding layers). This composite approach replaces traditional metal waveguides with a hybrid structure that is easier to manufacture on large scales while maintaining dimensional stability and uniformity, thus solving the manufacturing precision problem.
2Volume of moving object
If operating frequency is increased, then antenna size is reduced, but slot sizes become too small making it difficult to maintain design requirements
Solution Approach 1:
The patent changes the structural parameters of the antenna by using dielectric-based waveguides instead of metal waveguides. This allows for scaled-down dimensions at higher frequencies while maintaining manufacturable slot sizes, as the dielectric structure provides better dimensional control and less sensitivity to fabrication tolerances at small scales.
3Manufacturing precision
If dielectric layer thickness is increased, then waveguide uniformity is maintained, but antenna size increases
Solution Approach 1:
The patent optimizes the dielectric layer thickness parameter to achieve a balance between waveguide uniformity and antenna size. By carefully selecting the thickness within a specific range, the design maintains sufficient uniformity for proper waveguide operation while keeping the overall antenna dimensions compact, thus resolving the contradiction between these two parameters.
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 enhances efficiency and reduces size, maintaining waveguide uniformity and allowing for effective electromagnetic wave transmission across a range of frequencies, addressing deformation and size reduction issues in radial line slot antennas.
Implementation Method 1
a thickness of the dielectric layer has a positive correlation with a wavelength of an electromagnetic wave to be transmitted by the slot antenna
Implementation Method 2
a radiation layer on the first surface of the dielectric layer, and having a plurality of slots therein
Implementation Method 3
a first shielding layer on the second surface of the dielectric layer, and electrically connected to the radiation layer
Data Source
AI summary
A slot antenna and a communication device including the slot antenna are provided. The slot antenna includes: a dielectric layer having a first surface and a second surface opposite to each other, a radiation layer on the first surface of the dielectric layer and having a plurality of slots therein, and a first shielding layer on the second surface of the dielectric layer and electrically connected to the radiation layer.