Complete SNP Batch Processing Workflow

The SNP Batch Challenge

RF engineering teams accumulate hundreds of Touchstone files from multiple VNAs, different measurement dates, multiple DUT configurations, and different frequency setups. Without standardization, comparing files becomes difficult and error-prone. RF View's Batch Converter addresses all these issues in one tool.

Complete Batch Workflow

Phase 1: File Collection and Organization

  Create structured folder hierarchy:
  /project_BPF_Band3/
    /vendor_A/  (Murata S-parameters)
    /vendor_B/  (Qorvo S-parameters)
    /measurements/ (your VNA measurements)
      /lot_20241015/
      /lot_20241120/
    /simulation/  (ADS or RF View sim outputs)

Phase 2: Format Standardization

1. Select all files from all subfolders
2. SNP Converter → Format Change → target: DB format
3. RF View rewrites all to consistent DB format
4. Verify: load original + standardized → traces coincide

Phase 3: Port Remapping (if needed)

  If VNA connection was reversed (Output → Port 1, Input → Port 2):
  Apply uniform port swap to all measurement files:
  Port Change: P1↔P2 → apply to all /measurements/ files

Phase 4: Frequency Alignment

  Manufacturer files: 100 MHz – 6 GHz, 1601 points
  Your VNA files: 1600 MHz – 2100 MHz, 401 points

  Resample manufacturer files to match your VNA range:
  Target: 1600–2100 MHz, 401 points, linear spacing
  Apply to all manufacturer files → now comparable on same grid

Phase 5: Analysis and Comparison

1. Load all standardized files simultaneously in S-Parameter Plot
2. Visual inspection → identify outliers
3. Table Marker at spec frequencies → record all values

Phase 6: Summary Export

  Batch Converter → Summary Export:
  Analysis frequencies: 1843 MHz (f₀), 1750 MHz (TX rejection)
  Output: one CSV row per file

  Open CSV in Excel → sort by IL → identify best vendor
  Plot: histogram of f₀ values → check lot-to-lot consistency

Related Topics

← Back to Tutorial  ·  RF View Home