Antenna Feed Inner Surface Geometry for Smaller, Stronger Support Blocks
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Solution Overview
Problem
Existing antenna feeds are large in size and poor in structural strength, leading to increased material consumption, weight, and vulnerability to damage, while also being costly.
Innovation Solution
A medium support block with a water cup-like shape, featuring a cylindrical body and a unique inner surface configuration with distinct wall segments, reduces the diameter to less than twice the operating frequency wavelength, enhancing structural strength and signal transmission performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the diameter of the medium support block is increased to ensure structural strength, then the structural strength is improved, but the size of the antenna feed increases and material cost increases
Solution Approach 1:
The patent changes the geometric parameters of the medium support block by introducing a multi-segment inner surface with specific angle relationships. The second wall segment has angles greater than both the first and third wall segments, creating an optimized structural configuration that achieves required strength with reduced diameter (maximum diameter not greater than twice the wavelength), thereby resolving the contradiction between structural strength and size.
2Reliability
If the diameter of the medium support block is increased to maintain signal transmission performance, then the signal transmission performance is preserved, but the material consumption and weight increase
Solution Approach 1:
The patent optimizes the inner surface geometry with three distinct wall segments where the second wall segment has angles greater than the first and third segments. This parameter optimization allows the medium support block to maintain signal transmission performance while reducing the maximum diameter to not greater than twice the wavelength, thereby reducing material consumption.
3Strength
If annular grooves or teeth are added to the outer diameter of the medium support block to improve structural features, then the structural features are enhanced, but the processing difficulty and cost increase
Solution Approach 1:
The patent extracts and eliminates the complex annular grooves or teeth from the outer diameter of the medium support block. By removing these complicated structural features while maintaining the optimized inner surface geometry, the patent simplifies the manufacturing process, reduces processing difficulty and cost, while still achieving the required structural strength through the angular configuration of the wall segments.
4Quantity of substance
If the medium support block is reduced in size to reduce material cost, then the material cost decreases, but the structural strength may be compromised
Solution Approach 1:
The patent changes the geometric parameters by creating a multi-segment inner surface configuration where the second wall segment has angles greater than the first and third segments. This parameter optimization allows the medium support block to be reduced in size (maximum diameter not greater than twice the wavelength) while maintaining adequate structural strength through the optimized angular configuration.
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 redesigned medium support block reduces material costs and processing difficulties while maintaining signal transmission performance, improving structural stability and radiation efficiency.
Implementation Method 1
a waveguide, configured to electrically connect a signal to be transmitted
Implementation Method 2
a reflective surface configured to contact the inner surface
Data Source
AI summary
An antenna feed includes a waveguide, a medium support block, and a reflection surface, a smaller end of the medium support block is connected to the waveguide, the reflective surface contacts the inner surface, where the inner surface has at least first, second and third wall segments, where a distance of the second wall segment to the longitudinal axis is greater than a distance of the third wall segment to the longitudinal axis and is smaller than a distance of the first wall segment to the longitudinal axis, where a first angle is defined between the first wall segment and the longitudinal axis, a second angle is defined between the second wall segment and the longitudinal axis, a third angle is defined between the third wall segment and the longitudinal axis, and the second angle is greater than the first angle and greater than the third angle.