MICROWAVE FDTD STUDIO · APPLICATION EXAMPLE

Silver-plated waveguide filter · 30 GHz

Explore the device model, recorded field evolution and original response exports in Microwave FDTD Studio.

01 · MODEL & PORTS

Model & ports

Silver-plated waveguide filter · 30 GHz selected in the Microwave FDTD Studio modeling interface — **Modeling workspace**Original modeling workspace showing the selected device, geometry and port setup.

02 · RECORDED FIELDS

Recorded fields

Electromagnetic field animation through the cavity geometry. Original two-second playback is preserved. Original 24 frames at 12 fps; playback time is not simulation runtime.

03 · TIME-DOMAIN SIGNALS

Time-domain signals

Inspect the excitation and decay in the original time-domain export. Port-signal continuation estimates the remaining tail from the acquired response; it does not add FDTD time steps. How predictive continuation works

Silver-plated waveguide filter · 30 GHz electric-field overlap versus time in nanoseconds — **Time-domain port signals**Original time-domain electric-field overlap, showing the excited response and its decay. Read the time axis in nanoseconds; the continuation is estimated from the recorded port response.

04 · FREQUENCY RESPONSE

Frequency response

Silver-plated waveguide filter · 30 GHz overlaid magnitude response versus frequency — **Before and after signal estimation**The overlaid curves compare the response before and after signal estimation: the ripple-bearing trace is before estimation; the smoother trace is after estimation. The supplied axes and original trace colors are retained.

Silver-plated waveguide filter · 30 GHz magnitude, return-loss, VSWR, impedance and Smith-chart dashboard — **Frequency-response overview**Result dashboard across 27.6–32.4 GHz: magnitude, return loss, VSWR, impedance and a port-1 Smith chart. Some derived panels are empty or flat in the export.

Result interpretation

Images preserve their original pixels, axes and color scales. Videos preserve source resolution and frame timing. These are recorded exports, not a live solver.

Prediction quality requires checks against longer or withheld recorded data. A smoother curve alone does not establish accuracy or convergence.

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