Band-pass Filtering Structure With Periodic Conductive Geometric Structures
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Solution Overview
Problem
Existing band-pass filters exhibit poor wave transmission performance and cut-off performance due to unreasonable structural design.
Innovation Solution
A band-pass filtering structure with a functional layer structure comprising two or more first dielectric layers and a second dielectric layer, featuring periodically arranged first and second conductive geometric structures, including crossly-disposed conductive strips and closed conductive geometric structures, which modulate electromagnetic waves to enhance transmission and attenuation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional band-pass filter structures are used, then the device complexity is low, but the wave transmission performance and cut-off performance are poor
Solution Approach 1:
The filter is divided into multiple functional layers (first dielectric layer with first conductive geometric structures, second dielectric layer with second conductive geometric structures, and third dielectric layer with third conductive geometric structures). Each layer performs specific filtering functions, allowing the complex filtering task to be segmented into manageable parts that collectively achieve superior wave transmission and cut-off performance
Solution Approach 2:
The patent transitions from conventional two-dimensional filter designs to a three-dimensional multi-layer structure. By stacking multiple dielectric and conductive layers in the vertical dimension, the filter achieves enhanced performance without significantly increasing horizontal footprint, effectively using dimensional expansion to resolve the contradiction between performance and complexity
2Reliability
If existing band-pass filter designs are used, then the manufacturing process is simple, but the filtering performance and inhibition are poor
Solution Approach 1:
The patent optimizes specific geometric parameters of the conductive structures (such as the dimensions and arrangements of cross-shaped and ring-shaped patterns) to achieve superior filtering performance. By carefully controlling parameters like conductor width, spacing, and layer thickness, the filter achieves excellent cut-off characteristics and wave transmission performance while maintaining compatibility with standard manufacturing processes
3Loss of energy
If conventional filter structures are used, then the device is easy to operate, but the wave transmission loss is high and attenuation is slow
Solution Approach 1:
The patent employs composite structures combining multiple dielectric materials with different properties and conductive geometric patterns. The combination of first, second, and third dielectric layers with their respective conductive geometric structures creates a composite filtering system that minimizes energy loss through optimized electromagnetic field interaction, achieving low transmission loss and rapid attenuation
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 good wave transmission performance with rapid attenuation and minimal loss, improving the filtering performance of band-pass filters.
Implementation Method 1
the first conductive geometric structures and the second conductive geometric structures are used to modulate electromagnetic waves, so as to deflect a propagation direction of the electromagnetic waves, or transmit waves of an entire frequency band, or even reflect the waves
Data Source
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AI summary
The present invention discloses a band-pass filtering structure and an antenna housing. The band-pass filtering structure includes a functional layer structure, where the functional layer structure includes two or more first dielectric layers and a second dielectric layer that is disposed between two first dielectric layers, a plurality of first conductive geometric structures displayed in a periodical arrangement are disposed on the first dielectric layer, a plurality of second conductive geometric structures displayed in a periodical arrangement are disposed on the second dielectric layer, the first conductive geometric structure includes two crossly-disposed conductive strips, and the second conductive geometric structure is a closed conductive geometric structure. The present invention resolves a technical problem that filtering performance of an existing band-pass filter is poor due to unreasonable structural design.