Cavity Filter Side-Mounted Adjustment Mechanism
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Solution Overview
Problem
Conventional cavity filters require a thick cover plate for mounting adjustment screws, leading to increased size, uneven surfaces, and occupied space, making them inconvenient to use and affecting appearance.
Innovation Solution
The resonating and coupling adjustment assemblies are embedded into the bottom of the housing, eliminating exposed adjustment structures on the outer surface, allowing a flat bottom and reduced filter size, with the cover plate thickness minimized to facilitate easier installation and adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If resonant adjustment screw and coupling adjustment screw are mounted on the cover plate, then adjustment functionality is achieved, but cover plate thickness increases and overall size increases
Solution Approach 1:
The adjustment screws are relocated from the traditional cover plate mounting location to the side walls of the housing. This spatial reconfiguration allows the screws to be accessible from the sides rather than requiring thickness in the cover plate, effectively moving the adjustment functionality to a different dimension and resolving the contradiction between adjustment capability and compact size.
2Ease of operation
If resonant adjustment screw and coupling adjustment screw are mounted on the cover plate, then adjustment functionality is achieved, but upper surface becomes uneven and space is occupied
Solution Approach 1:
By relocating the adjustment screws to the side walls, the invention removes these protruding elements from the cover plate surface. This eliminates the unevenness and space occupation on the upper surface while preserving adjustment functionality through the side-mounted configuration.
3Ease of operation
If cover plate thickness is increased to accommodate adjustment screws, then adjustment functionality is achieved, but appearance is affected
Solution Approach 1:
The invention relocates adjustment screws to the side walls, allowing the cover plate to maintain a thin, uniform thickness. This preserves the aesthetic appearance of the device while providing full adjustment functionality through the alternative mounting location on the housing sides.
4Ease of operation
If resonant adjustment screw and coupling adjustment screw are mounted on the cover plate, then adjustment functionality is achieved, but installation complexity increases
Solution Approach 1:
By mounting the adjustment screws on the housing side walls rather than the cover plate, the invention simplifies the installation process. The screws can be directly installed on the housing structure without requiring pre-drilled holes and fasteners in the cover plate, reducing installation steps and complexity.
Data Source
AI summary
A cavity filter includes a housing, the housing includes resonant cavity groups, each of the resonant cavity groups has two resonant cavities, a partitioning portions is provided between the two resonant cavities, and the partitioning portions is provided with an adjustment passage running through the two resonant cavities. A cover plate is mounted on the housing to cover the resonant cavity groups. A resonating assembly includes a resonant tube, a resonant cap connected with the resonant tube, and a resonant adjustment screw provided in the resonant tube. The resonant tube is disposed on the inner wall of the resonant cavities. The resonant cap is opposite the cover plate. A coupling adjustment assembly is used for reducing the magnetic coupling amount between the two resonant cavities and enhancing the electrical coupling amount between the two resonant cavities.