Non-resonant Node Filter for Simplified High-Frequency Assembly
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Solution Overview
Problem
Conventional cavity filters for high-frequency signals require complex and time-consuming assembly processes due to numerous separate components and precise tuning requirements, making them difficult to manufacture and adjust for desired frequency rejection.
Innovation Solution
A filter design incorporating non-resonant nodes and combline resonators, where the non-resonant nodes resonate outside the operational frequency range and combline resonators resonate within, allowing for integral construction and adjustable tuning to reject specific frequency ranges without redesigning components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional cavity filters use multiple separate resonant components, then frequency rejection can be achieved, but assembly complexity and manufacturing time increase significantly
Solution Approach 1:
The patent combines multiple resonant components into a single integrated cavity structure where multiple resonant modes coexist within one physical component. The cavity support structure simultaneously serves as both a mechanical support and a resonant element, merging functions that were previously separated into distinct components. This integration maintains the frequency rejection capability while dramatically simplifying assembly.
Solution Approach 2:
The cavity support structure performs multiple functions: it provides mechanical support for the cavity, acts as a resonant element for frequency rejection, and serves as a coupling mechanism. This multi-functionality eliminates the need for separate components for each function, reducing assembly complexity while maintaining effective frequency rejection.
2Manufacturing precision
If conventional filters require precise tuning of multiple components, then desired frequency rejection is achieved, but manufacturing time and adjustment difficulty increase
Solution Approach 1:
By merging multiple resonant functions into a single cavity structure, the patent reduces the number of components that require individual tuning. The integrated design allows for centralized adjustment of resonant frequencies through modification of the cavity geometry or support structure, significantly reducing the time and complexity of the tuning process compared to adjusting multiple separate components.
Solution Approach 2:
The patent enables frequency tuning by changing physical parameters of the integrated cavity structure, such as the dimensions of the cavity or the configuration of the support elements. This approach allows for precise frequency adjustment through straightforward geometric modifications rather than complex multi-component tuning procedures.
3Ease of manufacture
If conventional cavity filters use integral construction, then manufacturing is simplified, but flexibility to adjust for different frequency rejections is reduced
Solution Approach 1:
The patent incorporates adjustable elements within the integrated cavity structure, such as movable support elements or tunable resonant components, that allow the filter characteristics to be modified after assembly. This dynamic capability provides flexibility for adjusting frequency rejection properties while maintaining the manufacturing simplicity of an integral construction.
Solution Approach 2:
The integrated cavity structure allows for frequency adjustment by changing physical parameters such as the position of support elements, the dimensions of resonant sections, or the coupling coefficients. These parameter changes can be made through simple mechanical adjustments or reconfiguration of the integrated structure, providing versatility without requiring complex assembly procedures.
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 filter is easier to assemble and tune, enabling efficient frequency rejection with reduced complexity and time, and can be configured to reject different frequency ranges by adjusting the combline resonators and coupling elements, simplifying the manufacturing process.
Implementation Method 1
the at least one non-resonant node is configured to resonate in a frequency range outside of the operational frequency range of the filter
Implementation Method 2
the at least one combline resonator is configured to resonate in a frequency range within the operational frequency range of the filter
Data Source
AI summary
Various exemplary embodiments relate to a filter configured to operate in an operational frequency range. The filter may include a mainline, at least one combline resonator coupled to the mainline, an input port coupled to the mainline, and an output port coupled to the mainline. The mainline may include at least one non-resonant node. The at least one non-resonant node may be configured to resonate in a frequency range outside of the operational frequency range of the filter, and the at least one combline resonator may be configured to resonate in a frequency range within the operational frequency range of the filter.