Adjustable Coupling Element for Wideband Channel Filter
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current channel filters for communication devices, particularly in satellite transmission paths, face challenges in adjusting resonant frequency across a wide frequency band, requiring complex development processes and tailored parts, limiting flexibility and efficiency.
Innovation Solution
A channel filter design featuring a first resonator, a coupling element with adjustable longitudinal sections, and adjustment elements that allow for movement to adjust the coupling, enabling the channel filter to be tuned across a wide frequency range by varying the coupling energy and resonant frequency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional channel filters with fixed geometric dimensions are used, then the filter operates at a specific resonant frequency, but the resonant frequency cannot be adjusted across a wide frequency band
Solution Approach 1:
The patent applies the dynamics principle by making the coupling element adjustable between different coupling states. The coupling element can be positioned at different locations along the waveguide, allowing dynamic adjustment of the coupling strength between resonators. This dynamic configuration enables the filter to operate across a wide frequency band without requiring multiple fixed filters, thereby improving adaptability while maintaining manageable device complexity.
Solution Approach 2:
The patent implements parameter changes by varying the coupling coefficient between resonators through adjustable coupling elements. By changing the position and configuration of the coupling element, the coupling parameter can be optimized for different operating frequencies. This allows a single filter structure to adapt to different frequency requirements by modifying the coupling parameter rather than changing the entire filter geometry.
2Reliability
If custom-made components are manufactured for each channel filter, then the filter can be optimized for specific frequencies, but the development and manufacturing time increases
Solution Approach 1:
The patent applies universality by designing a standardized filter structure with adjustable coupling elements that can be configured for different frequency requirements. The same basic filter architecture and component types can serve multiple frequency applications by adjusting the coupling element positions and configurations. This reduces the need for completely custom-designed filters for each frequency, thereby reducing development and manufacturing time while maintaining frequency-specific optimization.
Solution Approach 2:
The adjustable coupling elements provide dynamic reconfiguration capability, allowing the same physical filter to be optimized for different frequencies through repositioning rather than remanufacturing. This dynamic adaptability enables rapid reconfiguration for different applications without requiring new manufacturing cycles, significantly reducing the time loss associated with custom component manufacturing.
3Adaptability or versatility
If the coupling between resonators is fixed, then the filter structure is simple, but the bandwidth and resonant frequency cannot be adjusted
Solution Approach 1:
The patent implements dynamics by providing adjustable coupling elements that can be repositioned along the waveguide to change the coupling strength between resonators. The coupling element can be mechanically adjusted to different positions, allowing dynamic control of the coupling coefficient. This enables adjustment of both resonant frequency and bandwidth without requiring complex active control systems, maintaining relative simplicity while achieving the desired adaptability.
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
This design allows for flexible adjustment of resonant frequency and bandwidth, reducing the need for project-specific development and manufacturing of individual parts, enabling faster assembly and cost savings through the use of generic components that can be adjusted to operate across different frequencies.
Implementation Method 1
a coupling element (200) with a first longitudinal section (202) and a second longitudinal section (204), wherein the first longitudinal section (202) has a narrower width in a first direction, which extends transversely to a longitudinal direction (305) of the channel filter, than the second longitudinal section (204)
Implementation Method 2
The first adjustment element (400) is movable in a second direction, perpendicular to the first direction and perpendicular to the longitudinal direction (305), towards and away from the center of the coupling element (200), thereby performing an adjustment movement (412)
Data Source
Figure 1~2
Figure 3~5
Figure 6~7
AI summary
A channel filter (10) for a communication device is specified. The channel filter comprises the following elements: a first resonator (100), a coupling element (200) with a first longitudinal section (202) and a second longitudinal section (204), and a first tuning element (400). The coupling element (200) is configured to couple the first resonator (100) at least indirectly to an input (12) or an output (14) of the channel filter (10). The first longitudinal section (202) has a greater width than the second longitudinal section (204). The first tuning element (400) is arranged at least partially in the first longitudinal section (202) and at least partially in the second longitudinal section (204).