High-Frequency Circuit Interconnection Using Pressed Inner Conductor
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Solution Overview
Problem
In high-frequency technology, especially for satellite transmission links, there is a need for a connection method between high-frequency components that meets requirements of high-frequency and direct-current compatibility, mechanical and thermo-mechanical stability, and low connecting force, particularly for active antenna structures with multiple parallel processing paths.
Innovation Solution
A circuit arrangement featuring interconnected high-frequency components with an inner conductor enclosed by an outer conductor, where the inner conductor is pressed onto a contact surface to establish a high-frequency connection, ensuring mechanical decoupling and using a dielectric material and positioning elements for precise alignment and assembly, with the outer conductor providing electromagnetic shielding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple individual connections are established simultaneously between high-frequency components, then high-frequency and direct-current compatibility is achieved, but the connecting force required becomes very high (several hundred or thousand newtons)
Solution Approach 1:
The connection system is segmented into multiple individual connection elements (e.g., spring-loaded contacts, snap-fit connectors) that distribute the connecting force across multiple points. Each segment handles a portion of the total force requirement, allowing high-frequency signal paths to be established without requiring excessive total connecting force.
Solution Approach 2:
An intermediary connection mechanism (such as a pluggable connector with contact elements) is introduced between the high-frequency components and the backplane. This intermediary translates the requirement for multiple simultaneous connections into a single plugging action that establishes all connections with low force through elastic deformation or snap-fit mechanisms.
2Ease of operation
If a pluggable connection is used between electronic assemblies and backplane, then ease of assembly and disassembly is improved, but mechanical and thermo-mechanical stability may be compromised
Solution Approach 1:
The pluggable connector incorporates pre-designed compliance elements (elastic springs, flexible contacts, or deformable materials) that absorb mechanical and thermal stresses before they reach the electrical contacts. This cushioning effect maintains stable electrical connections despite repeated plugging and thermal expansion/contraction cycles.
Solution Approach 2:
The connection mechanism utilizes controlled elastic deformation and material compliance to adapt to thermal expansion and mechanical misalignment. By allowing controlled parameter changes in the connector structure (e.g., spring constant, contact pressure, material elasticity), stable electrical contact is maintained across varying operating conditions while preserving pluggability.
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 solution enables efficient, low-force connections between high-frequency components, maintaining mechanical and thermo-mechanical decoupling while ensuring reliable signal transfer and electromagnetic shielding, suitable for high-frequency and direct-current signals in satellite communication systems.
Implementation Method 1
The inner conductor is connected, on the one hand, to the first component and, on the other hand, to the second component, in order to transfer high-frequency signals
Implementation Method 2
The inner conductor is at least partially enclosed by an outer conductor
Data Source
AI summary
A circuit arrangement having two interconnected high-frequency components, namely a first component and a second component, is described. A connection for transferring high-frequency signals is arranged between the first component and the second component. The connection includes at least one inner conductor, which is at least partially enclosed by an outer conductor. The inner conductor is connected to the first component and to the second component in order to transfer high-frequency signals. The second component includes a contact surface on a connecting surface and the inner conductor is pressed using a pressure force onto the contact surface, to establish a high-frequency connection between the first component and the second component.