Limitations
Known constraints and assumptions of the analysis engine.
Analysis assumptions
Frequency independence All gains, noise figures, and intercept points are assumed constant across the RF band. There is no frequency-dependent (dispersive) analysis. The tool does not model gain rolloff with frequency.
Small-signal, weakly nonlinear The cascade formulas (Friis, OIP3) assume memoryless, weakly nonlinear stages operating in the small-signal regime. Results may be inaccurate for highly compressed or strongly nonlinear operating points.
IP3 approximation
The approximation IIP3 ≈ IP1dB + 9.6 dB applies strictly to a purely third-order nonlinearity. Real devices may deviate by 1–3 dB or more.
No intermodulation simulation The tool computes intercept points but does not simulate intermodulation products or their frequencies. SFDR is estimated from OIP3, not from a direct IM simulation.
Impedance assumptions
System-wide 50 Ω A global system impedance of 50 Ω is assumed. There is no per-block VSWR or impedance mismatch loss calculation. If a stage has significant mismatch, its insertion loss should be manually accounted for in the gain parameter.
Graph constraints
| Constraint | Limit |
|---|---|
| Blocks per chain | 200 |
| Connections per chain | 500 |
Component library
- Datasheet parsing uses OCR and AI extraction; accuracy depends on PDF quality and table formatting
- No live integration with distributor APIs (Digi-Key, Mouser, etc.)
- Component availability, pricing, and lead time are not tracked
What the tool does not do
| Capability | Status |
|---|---|
| EM simulation | Not supported |
| Physical layout | Not supported |
| Thermal / power dissipation analysis | Not supported |
| Phase noise cascade | Roadmap |
| Group delay / dispersion | Not supported |
| Automatic optimization to hit targets | Not supported |
| Multi-tone intermodulation simulation | Not supported |
| VSWR / mismatch loss | Not supported |