Non-Galvanic Waveguide Transition for Chip-Level Signal Leakage Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing waveguide connection technologies fail to efficiently connect standardized waveguides with non-compatible chip-level waveguides, leading to mechanical stress, signal leakage, and assembly challenges, especially at high frequencies, due to mismatched dimensions and materials.
Innovation Solution
A metalized waveguide interface with RF chokes and an airgap design that allows non-galvanic connection between standardized and chip-level waveguides, using quarter and half-wavelength waveguides to suppress signal leakage and facilitate automatic assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a standardized waveguide flange connection is used, then mechanical strength and reliability are improved, but compatibility with chip-level waveguides is lost due to mismatched dimensions and materials
Solution Approach 1:
The patent introduces a transition structure as an intermediary component between the standardized waveguide flange and the chip-level waveguide. This transition structure includes a first waveguide opening compatible with the standardized flange and a second waveguide opening matching the chip-level waveguide dimensions, thereby enabling connection between incompatible interfaces without compromising reliability or compatibility
Solution Approach 2:
The connection system is segmented into distinct components: the standardized waveguide flange, the transition structure with its own waveguide openings, and the chip-level waveguide. This segmentation allows each component to maintain its own dimensional and material characteristics while achieving overall system compatibility through the transition interface
2Ease of manufacture
If direct mechanical connection between standardized waveguide and chip-level waveguide is attempted, then assembly simplicity is improved, but mechanical stress and signal leakage increase due to dimension mismatch
Solution Approach 1:
The transition structure serves as a mediator that accommodates dimensional differences between the standardized waveguide and chip-level waveguide. By providing properly sized waveguide openings in the transition structure, it enables direct assembly without complex alignment procedures while preventing mechanical stress concentration and electromagnetic signal leakage that would occur with direct mismatched connection
Solution Approach 2:
The transition structure changes the geometric parameters (dimensions of waveguide openings) to bridge the gap between incompatible interfaces. The first waveguide opening is dimensioned for standardized flange compatibility while the second waveguide opening is dimensioned for chip-level waveguide compatibility, thereby transforming the connection parameters to eliminate stress and leakage issues
3Reliability
If galvanic connection is used between waveguides, then electrical contact is improved, but signal quality deteriorates due to electromagnetic discontinuities at the interface
Solution Approach 1:
The transition structure maintains consistent electromagnetic parameters (waveguide opening dimensions, spacing, and orientation) throughout the transition region. By ensuring that the waveguide openings in the transition structure match both the standardized flange and chip-level waveguide specifications, it preserves electromagnetic field continuity and minimizes signal loss while establishing reliable electrical contact
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 a low-loss, scalable, and non-destructive connection suitable for high-volume production, reducing mechanical stress and maintaining signal integrity by suppressing electromagnetic discontinuities.
Implementation Method 1
The third surface portion extends in a first direction d1 from the first side and parallel to the fourth side and in a second direction d2 from the third side and parallel to the fourth side, such that a first open-ended quarter wavelength waveguide and a second open-ended quarter wavelength waveguide is obtained along the directions d1 and d2, respectively
Data Source
Figure 1(a)~1(b)
Figure 2
Figure 3
AI summary
The present invention relates to a metalized waveguide interface (1) for providing a galvanically isolated waveguide connection for a propagating signal, between a standardized waveguide (2) and a, to the standardized waveguide non-compatible, metalized chip-level waveguide (3). The metalized waveguide interface (1) is configured such that a first open-ended quarter wavelength waveguide (31) and a second open-ended quarter wavelength waveguide (32) is obtained along the directions dl and d2, respectively, when the metalized chip-level waveguide (3) is mounted on the support surface (5). The interface is further configured such that third open-ended quarter wavelength waveguide (33) is obtained between the third surface portion (9) and the metalized chip-level waveguide (3) when the metalized chip-level waveguide (3) is mounted on the support surface (5). The interface (1) further comprises a trench such that a short-circuit half wavelength waveguide (34) is obtained when the metalized chip-level waveguide (3) is mounted on the support surface (5).