Radiated RF test

The most reliable antenna presence testing can be done with radiated RF coupler measurement. In the test, the measurement antenna is placed into a test fixture near the product antenna which creates a so-called near-field condition between the two antennas. The design of the coupler is always product specific and needs to be matched with the final product design.

This setup can be used to perform RX functionality test and TX functionality test.

Note: When setting targets and acceptance limits for the RF test, the fact that measurement accuracy is degraded compared to the conducted measurements should be considered.
Note: Radiated RF tests should always be done inside an RF shielded chamber to avoid issues caused by external disturbance.