D3: S-parameter (S11) of antenna

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Contents

1 Purpose

This procedure allows to measure the reflectivity of each antenna. A high reflectivity can be due to a broken antenna or to a bad match. Check connectors and cables.


2 Material

  • Network Analyzer (NA)


3 Procedure 1

  1. Stop acquisition
  2. Calibrate the NA for a S11 measurement
  3. Measure in sequence each antenna by connecting the NA directly to the input of the antenna divider


4 Procedure 2

  1. Stop acquisition
  2. Disconnect the RF signal cable from the amplifier input (Media:PictureAmpInputDegreane.png)
  3. Calibrate the NA for a S11 measurement
  4. Connect the NA before the antenna switch
  5. Configure a one-measurement (vertical) cycle
  6. Start acquisition
  7. Measure S11 with the NA
  8. Repeat steps 5 - 7 for each antenna




Go to Maintenance Procedures; Go to RWP Maintenance in CWINDE;

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