Split-Housing Transmission Line for Lightweight Low-Loss Waveguiding
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Solution Overview
Problem
Existing transmission lines, such as metal rectangular waveguides, face challenges in manufacturing ease, miniaturization, and lightening design due to difficulties in mechanical processing, large size, and weight.
Innovation Solution
A transmission line design featuring an outer housing with a split structure, comprising a first and second housing with grooves, an outer conductor with conducting layers, a support plate with the inner conductor, facilitating easy manufacturing and electromagnetic shielding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a metal rectangular waveguide is used as a transmission line, then transmission loss is reduced and power capacity is increased, but manufacturing difficulty increases, size increases, and weight increases
Solution Approach 1:
The outer housing is divided into a first housing and a second housing that are fastened together, allowing separate manufacturing of components that are later assembled. This segmentation enables easier manufacturing while maintaining the structural integrity needed for low transmission loss.
Solution Approach 2:
The patent transitions from a solid metal waveguide structure to a composite structure with conducting layers on groove inner walls, changing the material parameters and structural configuration to achieve both ease of manufacture and acceptable transmission performance.
2Loss of energy
If a metal rectangular waveguide is used as a transmission line, then transmission loss is reduced and power capacity is increased, but size increases and weight increases
Solution Approach 1:
The patent uses composite construction with a housing structure combined with conducting layers deposited on groove surfaces, replacing solid metal with a hybrid structure that reduces weight while maintaining electromagnetic performance characteristics.
Solution Approach 2:
The conducting layers function as thin film structures on the groove inner walls, providing the necessary electromagnetic shielding and conduction properties with minimal material thickness, thereby reducing overall weight compared to solid metal waveguides.
3Loss of energy
If a metal rectangular waveguide is used as a transmission line, then transmission loss is reduced and power capacity is increased, but mechanical processing difficulty increases
Solution Approach 1:
The patent replaces extensive mechanical processing of solid metal with a combination of simpler housing fabrication and conducting layer deposition processes, substituting difficult mechanical working with more manageable manufacturing steps.
Solution Approach 2:
By dividing the structure into a housing and separate conducting layers, the patent enables independent optimization of each component's manufacturing process, avoiding the need for complex integrated mechanical processing required by solid metal waveguides.
4Adaptability or versatility
If the support plate has a large plate surface area, then design flexibility of the inner conductor is improved, but transmission dispersion increases
Solution Approach 1:
The patent optimizes the support plate parameters, specifically using a small thickness while maintaining adequate plate surface area. This parameter adjustment provides design flexibility for the inner conductor while minimizing the plate's impact on transmission characteristics and reducing dispersion effects.
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 manufacturing convenience, allows for miniaturization and lightening, improves signal transmission performance, and reduces transmission dispersion, achieving lower losses and larger bandwidth compared to traditional metal rectangular waveguides.
Implementation Method 1
The first conducting layer and the second conducting layer may play a good electromagnetic shielding role in the inner conductor, and a signal is transmitted in the inner conductor
Data Source
AI summary
A transmission line includes an outer housing, an outer conductor, a support plate, and an inner conductor. The outer housing may include a first housing and a second housing that are fastened to each other. The first housing has a first groove, the second housing has a second groove, and the first groove and the second groove are enclosed to form a path. The outer conductor may include a first conducting layer and a second conducting layer. The first conducting layer is located on an inner wall of the first groove, and the second conducting layer is located on an inner wall of the second groove. The support plate is suspended in the path, and at least a part of an edge of the support plate is fastened between the first housing and the second housing.