Non-Galvanic Waveguide Transition for Chip-Level Interface Isolation
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Solution Overview
Problem
Conventional waveguide connection methods fail to effectively connect standardized waveguides with non-compatible chip-level waveguides, leading to mechanical stress, signal leakage, and assembly challenges, especially in millimeter-wave applications.
Innovation Solution
A metalized waveguide interface with RF-chokes and an airgap design that provides a galvanically isolated connection between standardized and non-compatible waveguides, using quarter and half-wavelength waveguides to suppress signal leakage and allow automatic assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional waveguide connection methods are used, then standardized waveguides can be connected, but they cannot connect to non-compatible chip-level waveguides
Solution Approach 1:
The patent introduces a transition structure as an intermediary component between the standardized waveguide and the chip-level waveguide. This transition structure includes a first waveguide port matching standardized dimensions and a second waveguide port matching chip-level dimensions, enabling connection between incompatible waveguide types without requiring complex direct coupling mechanisms
2Reliability
If direct mechanical connection is used between standardized and chip-level waveguides, then connection is achieved, but mechanical stress and signal leakage occur
Solution Approach 1:
The patent segments the waveguide connection into distinct sections: a standardized waveguide port section, a transition section with varying dimensions, and a chip-level waveguide port section. This segmentation allows each section to be optimized for its specific function, reducing mechanical stress concentration and preventing signal leakage at the interface
Solution Approach 2:
The transition structure employs gradual parameter changes in its dimensional specifications along the propagation direction, transitioning from standardized waveguide dimensions to chip-level waveguide dimensions. This gradual transformation minimizes discontinuities that would cause signal leakage and reduces mechanical stress compared to abrupt transitions
3Manufacturing precision
If manual assembly is used for waveguide connection, then precise alignment is achieved, but productivity is reduced
Solution Approach 1:
The transition structure is designed with pre-established alignment features and standardized interfaces that enable automatic positioning during assembly. The standardized waveguide port and chip-level port are configured with precise dimensional relationships predetermined in the design, allowing automated assembly systems to achieve precise alignment without manual intervention
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 ensures low-loss, scalable, and non-destructive connections suitable for high-volume production, reducing mechanical stress and maintaining signal integrity across non-compatible waveguide interfaces.
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
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 d1 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).