RF Filter Cavity Structure with Threaded Resonator Mounting
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Solution Overview
Problem
Radio frequency filters with cavity structures face limitations in achieving weight reduction and miniaturization due to the need for a housing with a resonance element and a coupling structure, which complicates the mechanical shapes and sizes required for stable installation, counteracting efforts for compactness and lightness.
Innovation Solution
A radio frequency filter design featuring a housing with a hollow interior and a cover that includes a resonance element with a planar portion and a support, where the planar portion has through holes for external driver engagement and a male thread structure for screw fastening, allowing for a compact and lightweight configuration with simplified mechanical form and size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a housing with resonance element and coupling structure is used, then stable installation is achieved, but weight reduction and miniaturization are limited
Solution Approach 1:
The resonance element is directly integrated into the housing structure, eliminating the need for separate coupling structures and mounting brackets. This merging of components reduces the overall weight while maintaining stable installation through the unified design.
Solution Approach 2:
Traditional complex coupling structures and mounting hardware are removed from the design. The housing itself is designed to directly support and couple the resonance element, extracting unnecessary components that added weight without improving installation stability.
2Reliability
If complex mechanical shapes and sizes are used for stable coupling, then reliable installation is achieved, but miniaturization is counteracted
Solution Approach 1:
The coupling function is merged into the housing structure itself rather than requiring separate coupling mechanisms. This integration allows for compact dimensions while maintaining coupling stability through the structural design of the housing and resonance element interface.
Solution Approach 2:
The housing and resonance element are designed with specific local geometric features that provide stable coupling without requiring overall increases in size. Localized structural optimizations enable reliable installation within compact dimensions.
3Ease of manufacture
If traditional housing and cover structure is used, then resonance element installation is achieved, but device complexity increases
Solution Approach 1:
The housing and cover are designed as an integrated structure that simplifies the installation process. The resonance element is directly positioned and secured within this integrated structure, eliminating the need for separate complex assembly steps and reducing overall device complexity.
Solution Approach 2:
The housing structure serves multiple functions simultaneously: it provides mechanical support, acts as a shield, and integrates the coupling mechanism. This multi-functionality reduces the number of separate components needed, simplifying both manufacturing and installation.
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 enables a more compact and lightweight radio frequency filter with minimized mechanical form and size for stable resonant element installation, facilitating easier integration into mobile communication systems like base stations, while maintaining effective signal processing capabilities.
Implementation Method 1
a plurality of accommodation spaces or cavities having a shape such as rectangular parallelepiped and the like, in which dielectric resonance elements (DR) or resonance elements having a metallic resonance rod are each provided for generating superhigh frequency resonance
Implementation Method 2
a cover for shielding the open areas of the corresponding cavities
Data Source
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AI summary
The present disclosure provides a radio frequency filter having a cavity structure including a housing, a cover and a resonance element. The housing has a hollow interior for providing a cavity, and an open side. The cover shields the open side of the housing. The resonance element is positioned in the hollow interior of the housing, and has a planar portion and a support for supporting and fixing the planar portion to the housing. The planar portion of the resonance element has at least two through holes, and the support has a lower end portion formed with a male thread structure for screw fastening. The housing is formed with a female thread structure to be screw fastened with the male thread structure formed at the lower end portion of the support.