Flex Circuit Transmission Line Filter With Adjustable Impedance Sections
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional transmission line filters provide static frequency response modification, which is inadequate for dynamically changing environments, and they are costly and space-consuming, especially at low temperatures, leading to integration failures and inconsistent filtering.
Innovation Solution
A field-adjustable transmission line filter with an impedance modification element comprising differentiated sections and adjustable impedance sub-elements, allowing for varied and oscillating frequency responses, integrated with the transmission line to facilitate discrete control and reduce component count.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional transmission line filters are used, then static frequency response modification is provided, but adaptability to dynamically changing environments deteriorates
Solution Approach 1:
The patent applies the Dynamics principle by making the filter characteristics adjustable through movable impedance modification elements that can be repositioned along the transmission line. This allows the filter to dynamically adapt its frequency response characteristics to changing environmental conditions while maintaining stable operation at any selected configuration.
Solution Approach 2:
The patent implements Parameter changes by enabling modification of the filter's electrical parameters (impedance values, spacing, positioning) through physical adjustment of the impedance modification elements. This allows the system to change its filtering characteristics in response to dynamically changing environments while maintaining stable filtered operation.
2Device complexity
If conventional transmission line filters are used, then filtering function is provided, but device complexity and component count increase
Solution Approach 1:
The patent applies the Merging principle by integrating the impedance modification elements directly with the transmission line structure, combining what would traditionally be separate filter components into a unified assembly. This reduces the overall component count and potential integration failure points while maintaining reliable filtering function.
Solution Approach 2:
The patent implements Universality by designing the impedance modification elements to serve multiple functions: they provide filtering action, enable field-adjustability, and can be integrated directly with the transmission line. This multi-functionality reduces the need for separate adjustment mechanisms and components.
3Ease of manufacture
If conventional transmission line filters are used, then filtering is provided, but manufacturing cost and space requirements increase
Solution Approach 1:
The patent applies the Merging principle by combining the filter elements with the transmission line into a single integrated structure. This eliminates the need for separate filter housings, mounting structures, and interconnections, thereby reducing manufacturing cost and space requirements while maintaining effective filtering.
4Ease of operation
If conventional transmission line filters are used, then filtering function is provided, but field-adjustability deteriorates
Solution Approach 1:
The patent applies the Dynamics principle by incorporating movable impedance modification elements that can be repositioned along the transmission line in the field. This provides field-adjustability for optimizing filter performance under different operating conditions while keeping the overall filter structure relatively simple and integrated.
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 solution provides flexible impedance adjustment, enabling effective filtering in dynamically changing environments, reduces manufacturing costs, and increases component density, while maintaining consistent performance even at low temperatures.
Implementation Method 1
an impedance modification element adjacent to and external to the signal transmission line, wherein the impedance modification element comprises a structure having differentiated sections, along the signal transmission line, that provide corresponding differentiated impedances
Data Source
AI summary
One or more devices and/or methods provided herein relate to a method for fabricating a filtering electronic device having a co-integrated impedance modification element and signal transmission line. An electronic structure can comprise a signal transmission line, and an impedance modification element adjacent to and external to the signal transmission line, wherein the impedance modification element comprises a structure having differentiated sections, along the signal transmission line, that provide corresponding differentiated impedances. In an embodiment, the impedance modification element can comprise a plurality of impedance sub-elements spaced apart from one another along and adjacent to the signal transmission line to facilitate the different impedances.