What Is Murata SimSurfing?
SimSurfing (simsurfing.com) is Murata's free online component simulation and S-parameter download service. It provides measured S-parameter files (.s2p) for thousands of Murata RF components including chip inductors (LQP, LQM series), capacitors (GRM, GJM series), filters, and antenna modules. These files are used directly in RF View's Real Match feature.
Step-by-Step: Download LQP15 10nH Inductor S-Parameters
- Go to simsurfing.com (or search "Murata SimSurfing")
- Select "Inductor" from product category
- Filter: L = 10 nH, package = 0402 (1005M), series = LQP15
- Select part number: e.g., LQP15MN10NG8ZD
- Click "S-parameter" tab → select frequency range (e.g., 100 MHz to 6 GHz)
- Click "Download" → select .s2p format → download file
Key Murata Component Series for RF
| Series | Type | Best For |
|---|---|---|
| LQP15MN (0402) | RF inductor | Matching networks 1–3 GHz |
| LQW15A (0402) | Wire-wound inductor | High current RF chokes |
| GRM0335 (0201) | C0G capacitor | High-Q matching at 5+ GHz |
| GJM0335 (0201) | C0G capacitor | Miniature matching at mmWave |
| SFECF (various) | SAW/BAW filter | Cellular band filtering |
Using Downloaded .s2p in RF View
Option A: Real Match (automatic) → RF View's Auto Match → Real Match → automatically uses Murata data Option B: Manual simulation → Circuit Simulator → Add S2P element → load Murata inductor .s2p → Simulates with exact component behavior (including Q, SRF, parasitics) → Compare ideal inductor vs Murata LQP15 model on same chart
Validating the S-Parameter File
After downloading, verify the .s2p makes sense:
- Load in RF View → Smith chart → S11 view
- 10 nH inductor at 1 GHz should appear in upper half of Smith chart (inductive)
- The SRF should be visible: trace crosses real axis at top of chart
- Above SRF: trace moves to lower half (capacitive behavior) — confirm SRF matches datasheet
RF View + Murata SimSurfing: Download Murata component .s2p files, load in RF View for analysis, or use RF View's built-in Real Match which accesses Murata catalog data automatically. Free combination of tools.