Adjustable Channel Filter Resonator for Satellite Radio
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing channel filters in satellite radio transmission links lack flexibility in adjusting resonator frequency, requiring costly and precise actuators, especially in aerospace applications, and are not easily adaptable to varying frequency ranges.
Innovation Solution
A resonator design featuring a cavity with a movable adjusting element and lateral openings, allowing for adjustable resonator frequency through changes in cavity volume and geometry, utilizing recesses and actuators for precise positioning, and potentially incorporating multiple adjusting units and waveguide switches for discrete frequency settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If highly precise actuators and control systems are used to adjust resonance frequency throughout a large range in small steps, then frequency adjustment precision is improved, but device complexity and cost increase significantly
Solution Approach 1:
The patent implements a movable adjusting element that can be positioned at different locations along the side wall of the resonator cavity. This dynamic repositioning changes the effective cavity volume and geometry, thereby adjusting the resonance frequency. The adjusting element can be moved to predetermined positions corresponding to different frequency settings, providing frequency adjustment without requiring highly precise actuators.
Solution Approach 2:
The invention changes the physical parameter of cavity volume by moving the adjusting element to different positions. By varying the position of the adjusting element along the side wall, the effective volume of the resonator cavity is changed, which directly affects the resonance frequency. This parameter change approach allows frequency adjustment through simple mechanical repositioning rather than complex control systems.
2Ease of manufacture
If channel filters are designed with fixed center frequency and bandwidth, then manufacturing simplicity is improved, but adaptability to varying frequency requirements deteriorates
Solution Approach 1:
The resonator incorporates a movable adjusting element that enables the same filter structure to be configured for different frequency settings. The adjusting element can be repositioned to adapt the resonator to different center frequencies and bandwidths, providing versatility while maintaining the same basic manufactured structure. This dynamic adaptability allows a single filter design to serve multiple frequency requirements.
Solution Approach 2:
The adjusting element serves multiple functions: it can be positioned to adjust center frequency, modify bandwidth, or potentially disable certain resonant modes. This multi-functional component allows a single resonator design to accommodate various frequency requirements without requiring separate fixed-frequency filters for each application.
3Adaptability or versatility
If the adjusting element is made movable relative to the lateral opening, then frequency adjustment capability is improved, but structural complexity increases
Solution Approach 1:
The resonator structure is segmented into a stationary cavity and a movable adjusting element. The adjusting element is separated from the main cavity structure, allowing it to be independently repositioned. This segmentation enables frequency adjustment functionality while keeping the overall structural complexity manageable, as only the adjusting element requires movement capability rather than the entire resonator structure.
Solution Approach 2:
The adjusting element acts as an intermediary component between the cavity and the external adjustment mechanism. It mediates the effect of simple mechanical repositioning on the resonator's electromagnetic properties, translating minimal structural changes into significant frequency adjustment capability without requiring complex structural modifications.
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
Enables easy and precise adjustment of resonator frequency with existing hardware, reducing complexity and cost, particularly suitable for aerospace applications, while maintaining performance across different frequency ranges.
Implementation Method 1
a resonator frequency of the resonator can be adjusted depending on a position of the adjusting element with reference to the lateral opening
Data Source
AI summary
A resonator for a channel filter is provided. The resonator includes a cavity; a sidewall which at least partially surrounds and forms the cavity, wherein at least one lateral opening is provided in the sidewall; a first adjusting unit with an adjusting element. A first recess is provided at the adjusting element. The adjusting unit is arranged such that the adjusting element adjoins the lateral opening. The adjusting element is movable relative to the lateral opening such that a resonator frequency of the resonator can be adjusted depending on a position of the adjusting element with reference to the lateral opening.