source:pogo pin release time:2021-09-10 Article author:sznbone Popular:POGO PIN
How are RF coaxial connectors classified?
Definition: Class 0-a specific type of precision-manufactured connector used to measure the reflection coefficient of Class 1 and Class 2 connectors, and the error caused by the measurement results can be ignored. When the main requirement of RF coaxial connectors is high strength and resistance to harsh environments, a stainless steel shell is selected; when the shell is required to have good electrical contact performance and corrosion resistance, a copper alloy base material and gold-plated shell is selected. 3. Test results The test items of RF coaxial connector include contact resistance, voltage standing wave ratio, insertion loss and vibration. The contact resistance test adopts the four-point method, which conforms to the IEC test standard, and the test of the voltage standing wave ratio and insertion loss is carried out on the network analyzer with the sweep frequency method.
Class 1.1-A connector that specifies the limit value of the reflection coefficient according to the frequency change. Generally, the specified dimensional tolerance is not stricter than that of the corresponding Class 2 connector, but the manufacturer is responsible for ensuring that the connector meets the requirements of the reflection coefficient Choose tighter tolerances.
Class 2.2-A connector that is manufactured with a wide allowable dimensional deviation (tolerance), but still can guarantee the minimum specified performance and fit.
3. All elastic components of the radio frequency coaxial connector are made of beryllium bronze with better elastic properties. After processing, it is reshaped (closed or expanded), and then treated with aging to enhance its elasticity. As the insulating material, PTFE with good high-frequency performance and processing performance is selected. The material of the connector housing can be designed in two ways as required.
4. The contact resistance test of the inner conductor contact pair and the outer conductor contact pair of the radio frequency coaxial connector interface. It can be seen from the table that the contact resistance values of all parts are in the specified range.
5. All elastic components of the radio frequency coaxial connector are made of beryllium bronze with better elastic properties. After processing, it is reshaped (closed or expanded), and then treated with aging to enhance its elasticity. RF coaxial connector material: Shell: nickel plated brass Pin: hard gold plated brass Jack: beryllium bronze hard gold plated insulator.
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