Multiposition Switch Rotatable Routing Subassembly RF Signal Integrity
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Solution Overview
Problem
Existing RF switches, such as solenoid actuated relays and integrated connector switches, are unreliable and prone to failure, requiring multiple units and being susceptible to damage, which complicates system design and signal integrity.
Innovation Solution
A multiposition switch with a base member and a rotatable routing subassembly that includes a routing disc with electrical paths, allowing for switching between combined and uncombined positions, reducing the need for multiple switches and enhancing signal integrity by using a single switch for combining and separating RF power signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple solenoid actuated switches are used to fulfill system requirements, then the switching functionality is achieved, but the device complexity and potential for failure increase
Solution Approach 1:
The patent combines multiple switching functions into a single multiposition switch with a rotatable routing subassembly. The routing member with multiple electrical paths integrates the functionality of multiple solenoid actuated switches, reducing the number of separate components needed while maintaining the required switching capabilities between combined and uncombined positions.
Solution Approach 2:
The single multiposition switch is designed to perform multiple switching functions simultaneously. The routing subassembly can connect different contact members in various configurations, enabling the switch to handle both combining and uncombining RF power signals through different rotational positions, thereby replacing multiple specialized switches.
2Ease of manufacture
If integrated connector switches are used, then the switching action is integrated with connector engagement, but the susceptibility to damage and contamination increases
Solution Approach 1:
The patent separates the switching function from the connector engagement function. The multiposition switch is implemented as a distinct component with a rotatable routing subassembly that is not positioned at the I/O port. This segmentation allows the switching mechanism to be protected from external damage and contamination while maintaining electrical connection functionality.
3Reliability
If at least two switching connectors are required in each system, then the switching functionality is achieved, but the device complexity and space requirements increase
Solution Approach 1:
The patent merges the functionality of at least two switching connectors into a single multiposition switch. The routing member with multiple electrical paths and the rotatable subassembly integrate multiple switching operations that would otherwise require separate connectors, thereby reducing the overall volume and space requirements of the system.
Data Source
AI summary
A multiposition switch that comprises a base member accommodating a plurality contact members, respectively. The plurality of contact members are adapted to electrically mate to a host printed circuit board. A routing subassembly is rotatably coupled to the base member. The routing subassembly includes a routing member that defines a plurality of electrical paths between the contact members for switching between combined and uncombined positions. An actuator is coupled to the rotating member for rotating the routing member with respect to the base member between the combined and uncombined positions.