Small Connector Test Jig With PCB Shielding for UHF Measurement
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Solution Overview
Problem
Challenging to physically connect small connectors for ultra-high-frequency signal transmission directly to measurement instruments due to their small size, necessitating a separate test jig that provides electromagnetic shielding and individual signal line isolation.
Innovation Solution
A connection jig comprising a plate-shaped jig body with an insertion hole, a printed circuit board, and covers that allow for secure attachment and electromagnetic shielding, enabling direct connection to measurement instruments while minimizing signal loss and interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a small connector is used for ultra-high-frequency signal transmission, then miniaturization and shielding performance are improved, but direct physical connection to measurement instruments becomes difficult
Solution Approach 1:
A test jig is introduced as an intermediary device between the small connector and measurement instruments. The jig includes a connector receiving portion that accommodates the small connector and signal lines that extend to measurement instrument connection portions, enabling indirect connection and overcoming the size limitation.
Solution Approach 2:
The test system is segmented into distinct functional components: the small connector, the test jig with connector receiving portion, signal transmission lines, and measurement instrument connection portions. This segmentation allows each component to be optimized independently while maintaining overall system functionality.
2Ease of operation
If traditional PCB connectors are used, then connection is easier, but leakage current increases and signal loss occurs
Solution Approach 1:
The connector design parameters are changed to achieve miniaturization while improving shielding performance. The small connector has a reduced height and compact structure compared to traditional PCB connectors, and the shielding structure is optimized to reduce leakage current and signal loss.
3Measurement precision
If a test jig is introduced for small connector testing, then measurement capability is improved, but device complexity increases
Solution Approach 1:
The test jig is designed with universal functionality to accommodate different small connectors and provide multiple measurement capabilities. The connector receiving portion can hold various small connector types, and the signal lines are configured to support different electrical characteristic measurements, reducing the need for multiple specialized test devices.
Data Source
AI summary
A connection jig comprises: a first output terminal and a second output terminal for connecting to signal lines of the measuring instrument; a jig body having the shape of a plate-shaped block, into which the small connector can be inserted, and having an insertion hole penetrating from the upper surface to the lower surface of the plate-shaped block; a printed circuit board for a jig that can be inserted into the lower surface of the plate-shaped block and has a signal pattern that can be electrically connected to the small connector accommodated in the insertion hole; a lower cover detachably attached to the lower surface of the jig body and fixing the printed circuit board for the jig to the jig body; and an upper cover attachable to and detachable from the upper surface of the jig body and fixing the small connector to the jig body.