Threaded Coupling|Glossary

This section is part of the Coaxial Connector Glossary for RF and coaxial systems.

What Is Threaded Coupling?

Threaded coupling is a type of coupling mechanism that secures connectors by tightening a threaded interface.

It uses a screw-type structure, where connectors are joined by rotating a coupling nut or threaded body.

This method provides a strong and stable mechanical connection.

Threaded coupling is widely used in RF connectors such as SMA and N types, where secure and reliable connections are required.

It is also sometimes referred to as screw coupling.

Threaded Coupling in RF and Coaxial Systems

In RF and coaxial systems, threaded coupling is preferred for applications requiring high reliability and stable electrical performance.

The strong mechanical retention minimizes the risk of disconnection under vibration or external forces.

It also helps maintain consistent contact pressure, contributing to low insertion loss and good signal integrity.

However, it requires more time to connect and disconnect compared to quick-lock mechanisms such as bayonet coupling.

FAQs: Threaded Coupling

QWhat is threaded coupling?

A

Threaded coupling is a connector mechanism that uses threads to secure two connectors together.

QWhere is threaded coupling used?

A

It is commonly used in connectors such as SMA and N for reliable RF connections.

QWhat are the advantages of threaded coupling?

A

It provides strong retention, stable contact, and reliable performance under vibration.

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