note |
This section is available for RNVNA only. |
To optimize N-port RNVNA calibration in terms of reducing number of connections and providing acceptable accuracy use 1-to-N topology, i.e. perform all the ports calibration relative to the only source port. Calibration factors for the rest of port pairs (i.e. when other ports are used as source port) will be obtained by calculation.
Optimal N-port calibration with 2-port or 4-port ACM should be performed as follows:
•Connect ACM to the Analyzer ports.
•Select type of calibration Full 2-Port with Scalar Thru.See Automatic Calibration Procedure for RNVNA.
•Select source port and receiver port(s).
•Enable ACM automatic orientation mode and thermal compensation (if needed).
•One two-port calibration with 2-port ACM or three two-port calibrations with 4-port ACM can be performed in one calibration procedure.
•Disconnect ACM from the Analyzer’s port(s) which were designated as receiver port(s).
•Repeat enabling automatic orientation and calibration stages for all the rest receiver ports.
