Multi-Channel Switch Topology for Compact High-Frequency Routing
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Solution Overview
Problem
Current multi-channel switch devices require a complex configuration with multiple stages of switches to manage high frequency signals, resulting in a large layout space.
Innovation Solution
The proposed multi-channel switch device employs a first-stage switch circuit, at least one second-stage switch circuit, and multiple third-stage switch circuits, connected through common-mode nodes to reduce the number of stages required, thereby minimizing the layout space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple stages of switches are used to manage high frequency signals, then signal transmission capability is improved, but layout space increases
Solution Approach 1:
The patent combines multiple switch stages into a more compact configuration by integrating common-mode nodes across stages. The first-stage switch circuit, second-stage switch circuit, and third-stage switch circuit are merged through shared common-mode nodes (first common-mode node, second common-mode node, third common-mode node), reducing the overall layout space while maintaining signal transmission capability across multiple channels.
Solution Approach 2:
The common-mode nodes serve multiple functions across different switch stages. Each common-mode node is shared between multiple switch circuits, allowing a single node to facilitate signal transmission for multiple channels simultaneously. This multi-functionality reduces the total number of components needed and minimizes layout space while preserving adaptability.
2Adaptability or versatility
If traditional single-contact switches are used in multiple stages, then signal routing flexibility is improved, but device complexity increases
Solution Approach 1:
The patent merges multiple single-contact switch stages into an integrated multi-stage switch device where common-mode nodes are shared across stages. Instead of having separate, independent switch circuits, the design combines them through shared nodes, reducing device complexity while maintaining the flexibility to route signals through multiple channels.
Solution Approach 2:
The common-mode nodes act as intermediaries between different switch stages. Rather than having direct connections between all switch circuits, the common-mode nodes mediate the signal transmission, simplifying the overall device structure while preserving routing flexibility. This intermediary approach reduces the number of direct connections needed and lowers device complexity.
Data Source
AI summary
A multi-channel switch device is provided. The multi-channel switch device includes a first-stage switch circuit, at least one second-stage switch circuit, and multiple third-stage switch circuits. The first-stage switch circuit includes a first common-mode node, a first input/output terminal, and at least one first-stage connection terminal. The second-stage switch circuit includes a second common-mode node, a second-stage transmission terminal, and multiple second-stage connection terminals. Each of the third-stage switch circuits includes a third common-mode node, a third-stage transmission terminal, a reference terminal, and a second input/output terminal. Two of the first input/output terminal and the at least one first-stage connection terminal are connected through the first common-mode node. Two of the second-stage transmission terminal and the second-stage connection terminals are connected through the second common-mode node. Two of the third-stage transmission terminal, the reference terminal, and the second input/output terminal are connected through the third common-mode node.