PNA-X multiport interconnect crosstalk measurement

Keysight Technologies · Geometric and electrical metrology

Purpose: Suspected interconnect crosstalk calls for comparing transmission, reflection and coupling across accessible test structures.
Technical approach: A vector network analyzer measures multiport S-parameters; port and differential-channel definitions guide coupling analysis.
Scope of use: Passive interconnect or interposer coupons with RF access, suitable fixtures and an agreed measurement range.
Limitations and open questions: These evaluation considerations are compiled by BLNKK from public information. They are not supplier guarantees or a mandatory submission checklist.
Scope and limitations
A twelve-port example does not make every PNA-X a native twelve-port instrument. External measurements cannot locate every buried trace or establish active-PHY system performance.
What to prepare
BLNKK suggests documenting port maps, bands, reference impedance, coupons and fixtures, with planned calibration planes, de-embedding and comparison baselines.
Confirm with the supplier
Confirm port/switch configuration, probe/fixture compatibility, calibration and de-embedding capabilities, and interpretation appropriate to the actual test structure.
Public evidence: The current page lists PNA-X configurations. The official application-note introduction describes twelve-port differential-channel and coupling-region analysis.

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