RF Coaxial Connector Blind-Mate Design Using Embedded Self-Clinching Filter
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Solution Overview
Problem
Current filter and antenna feeder connectors are integrated, making it difficult to achieve blind-mate connections and requiring additional space for installation, which can lead to grounding issues and intermodulation problems due to the need for forward pushing and loose fastening.
Innovation Solution
A filter and radio frequency coaxial connector are designed separately, with a coaxial connection component embedded in the filter cavity body in a self-clinching manner, allowing for socket joint connections that avoid protrusion and complex cable management, enabling fast blind-mate of signal ports and reducing installation space requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the filter and antenna feeder connector are integrated into one body, then waterproofing and high isolation requirements are met, but blind-mate connection cannot be implemented and installation space is increased
Solution Approach 1:
The patent divides the integrated structure into separate components: the filter assembly and the connector assembly. The filter is installed inside the box body while the connector protrudes through the through hole, allowing them to be connected via blind-mate without requiring the filter to protrude. This segmentation enables both waterproofing/isolation and blind-mate connection capabilities.
2Ease of manufacture
If the filter is pushed forward for installation, then the connector can penetrate the through hole, but more interior space is required and the nut becomes loose
Solution Approach 1:
Instead of pushing the filter forward to make the connector penetrate, the patent inverts the approach: the filter is installed first inside the box body, then the connector is inserted through the through hole to connect with the filter's coaxial interface. This reversal eliminates the need for additional interior space and prevents the nut from becoming loose due to counter force.
3Device complexity
If the filter and connector are integrated, then a through hole design is achieved, but the transmit port and receive port cannot implement blind-mate with the PCB
Solution Approach 1:
The patent separates the filter and connector functions into distinct assemblies. The filter assembly contains the transmit and receive ports that can be blindly mated with the PCB, while the connector assembly handles the external connection. This segmentation enables blind-mate capability for signal ports while maintaining the through hole structure.
Data Source
AI summary
The present disclosure provides a filter and a radio frequency coaxial connector, to implement fast blind-mate of various signal ports. The filter includes: a filter cavity body and a coaxial connection component. The coaxial connection component is embedded in the filter cavity body in a self-clinching manner. The coaxial connection component includes a socket outer conductor and a main rod. The main rod penetrates the socket outer conductor, and one end of the main rod is connected to a signal end disposed in the filter cavity body. The coaxial connection component is in socket joint with a radio frequency coaxial connector by using the socket outer conductor, and the coaxial connection component matches the radio frequency coaxial connector.