Hyperfrequency Component Assembly Signal Confinement
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Solution Overview
Problem
Hyperfrequency signal mismatch and losses occur between surface-mounted components and printed circuit boards due to parasitic capacitances and inductances, limiting the maximum usage frequency and causing insulation faults and signal leaks.
Innovation Solution
An assembly with a hyperfrequency component and printed circuit board featuring a conductive enclosure with a cavity that confines the signal, using a conductive zone connected to the printed circuit board's transmission line to guide the signal, reducing signal losses and leaks by creating an optimized transition and insulation between channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a bead of glass is used to keep the central conductive rod in the housing, then the rod is secured in position, but signal mismatch and losses occur at high frequencies, limiting the frequency rise
Solution Approach 1:
The invention removes the glass bead from the signal path entirely. Instead of using a glass bead to secure the central conductive rod, the rod is positioned and secured through mechanical means (housing structure, positioning elements) that do not interfere with the hyperfrequency signal propagation, thereby eliminating the signal mismatch and losses caused by the glass bead while maintaining rod stability
Solution Approach 2:
The invention introduces an intermediary structure (conductive housing with recess and conductive zone) between the printed circuit board and the central conductive rod. This intermediary provides both mechanical support and optimized electromagnetic coupling, allowing the rod to be secured without using glass beads that cause signal losses at high frequencies
2Ease of manufacture
If the central conductive rod has a constant non-configurable section, then manufacturing is simplified, but hyperfrequency adaptation optimization is limited
Solution Approach 1:
The invention applies local quality by providing different structural characteristics at different locations of the central conductive rod. The rod has a first section with optimized dimensions for hyperfrequency adaptation in the transition zone, while other sections maintain standard dimensions. This allows manufacturing simplicity to be preserved where possible while optimizing critical regions for high-frequency performance
Solution Approach 2:
The invention changes the geometric parameters (dimensions, shape) of specific sections of the central conductive rod to optimize hyperfrequency adaptation. By modifying parameters such as the diameter or cross-sectional area of the rod in the transition zone, the invention achieves better electromagnetic coupling and reduced signal losses while maintaining overall manufacturing feasibility
3Device complexity
If no precautions are taken to prevent channel coupling at the printed circuit, then device complexity is reduced, but hyperfrequency signal leaks occur through the printed circuit
Solution Approach 1:
The invention merges the insulation function with the existing printed circuit board structure by integrating ground zones and insulating patterns directly into the PCB design. Rather than adding separate insulation components, the solution combines electromagnetic shielding and insulation functions into the circuit board itself, reducing device complexity while preventing signal leaks between channels
Solution Approach 2:
The invention converts the potentially harmful effect of close channel spacing into a benefit by using the printed circuit board's ground planes and reference planes as electromagnetic shields. The close proximity of channels, which could cause coupling, is transformed into an opportunity for effective shielding using the PCB's inherent conductive structures, preventing signal leaks without adding complex external insulation
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 enhances signal reliability and frequency operation by minimizing signal losses and leaks, allowing the component to function effectively at high frequencies beyond 1 GHz.
Implementation Method 1
which includes at least one cavity for confining a hyperfrequency signal, delimited by at least one conductive surface of the enclosure, and by a conductive zone connected to the exposed conductive part of the second hyperfrequency transmission line
Data Source
AI summary
The inventive assembly comprises a hyperfrequency component of the surface-mounted component type including at least one first hyperfrequency transmission line, as well as a printed circuit board including at least one second hyperfrequency transmission line able to be put in contact with the first hyperfrequency transmission line. The component comprises an enclosure with a face in contact with the printed circuit board, which includes at least one cavity for confining a hyperfrequency signal, delimited by conductive surfaces of the enclosure, and by a conductive zone of the second hyperfrequency transmission line.