BetaWiTwin Studio

The RF Digital Twin

Describe a scene to the Agent, run differentiable Maxwell, radar and channel solvers on it, and keep every Project an ordinary Python codebase.

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WiTwin Studio start screen with the six Project template cards and the Agent chat box

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Studio for the editor; the solvers are Python packages you can use on their own.

Studio

AI-native editor: build scenes by chat, run solvers, keep every Project a Python codebase

RayD

Differentiable GPU ray geometry primitives

pip install rayd

Maxwell

Differentiable full-wave electromagnetic solver

pip install witwin-maxwell

Radar

Differentiable mmWave radar simulator

pip install witwin-radar

Channel

Differentiable wireless channel and RF ray tracing

pip install witwin-channel

From a sentence to a solved Scene

One editor and one set of open solvers for electromagnetics, radar and wireless channels

Gradients for inverse design

End-to-end differentiable

Maxwell, Radar and Channel plug into PyTorch autograd, so a loss on the simulated field, radar return or channel flows back to geometry, materials and positions. Studio runs gradient, sweep, Monte Carlo, genetic, PSO and Bayesian Studies on the same Scene.

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LossObservationSimulated SignalSignal GradientWiTwinSimulatorParameterizationSceneMeshingGradientParametersValueGradForwardGradient
Simulation as a differentiable layer

Physics inside your network

Solver outputs are torch tensors on the GPU. Put a simulator between two learned modules and train the whole model end to end, with the physics kept exact.

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LossPhysical Twin IntrinsicRFSignalInputDNNShapeMaterialFormWaveSensorMotionWiTwinSimulatorRFSignalOutputFeed ForwardPhysics Model

Developers

Xingyu Chen

Xingyu Chen

Fourth Year PhD Student

UC San Diego

Founder and Developer

Prof. Xinyu Zhang

Prof. Xinyu Zhang

Professor, Director of Center of Wireless Communication

UC San Diego

Advisor

Citation

If you use RF Digital Twin in your research, please cite our paper

BibTeX
@inproceedings{chen2026rfdt,
  title     = {Physically Accurate Differentiable Inverse Rendering
               for Radio Frequency Digital Twin},
  author    = {Chen, Xingyu and Zhang, Xinyu and Zheng, Kai and
               Fang, Xinmin and Li, Tzu-Mao and Lu, Chris Xiaoxuan
               and Li, Zhengxiong},
  booktitle = {Proceedings of the 32nd Annual International Conference
               on Mobile Computing and Networking (MobiCom)},
  year      = {2026},
  doi       = {10.1145/3795866.3796686},
  publisher = {ACM},
  address   = {Austin, TX, USA},
}

Licensing

Research

Free

For academic and non-commercial research purposes

  • Full access to simulation capabilities
  • Academic publications allowed
  • Community support
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Commercial

Contact Us

For commercial and enterprise applications

  • Production deployment rights
  • Priority support
  • Custom integration assistance
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