Smith Designer Description

Smith Designer is a powerful and interactive Smith Chart tool for RF and Microwave professionals, students, and hobbyists. Design, analyze, and optimize impedance matching networks directly on your mobile device.

A Smith Designer Lite version is available.
Windows versions, Lite and full-featured, are also available.

Key Features:
• Interactive Smith Chart: Visualize impedance trajectories with real-time updates.
• Schematic Editor: Drag-and-drop interface for L, C, R, Transmission Lines (Physical/Electrical), Transformers, and S2P blocks.
• Amplifier Design: Overlay Gain Circles (Ga, Gp), Stability Circles, and Noise Circles to design LNAs and PAs. Unilateral conjugate match visualization.
• Real-Time Tuning: Tune components via sliders or by dragging points directly on the chart. Memory Traces let you compare before/after states.
• Auto Match: Automatically synthesize L-network matching circuits.
• Optimization: Gradient descent optimizer to fine-tune component values.
• Impedance Profiles: Define complex, frequency-dependent Source and Load impedances using S1P files.
• Box Zoom: Right-click and drag to zoom into specific regions of the Smith Chart.
• Data Explorer: Analyze RF data like never before. Import Touchstone (.sNp), MDIF, and Load Pull files. Visualize S-parameters, Noise Figure, and Load Pull contours on Cartesian, Polar, and Smith charts. Use the innovative Smith Tube 3D view to analyze load pull performance across frequency. View 3D antenna radiation patterns with interactive rotation and polar cuts.

Analysis & Simulation:
• Frequency Sweep: Plot S-Parameters, Return Loss, and Group Delay over bandwidth.
• Monte Carlo Analysis: Simulate manufacturing tolerances (Uniform, Gaussian, Triangular) to ensure design robustness. Supports frequency sweeps for bandwidth yield analysis.
• Load Pull Contours: Import multi-frequency Load Pull and MDIF files. Frequency interpolation (nearest, linear, cubic spline). Filled contours with 5 color maps. Reference/contour plane transforms through the matching network.
• Vendor Libraries: Import component models (S2P/Murata LPB) directly into your design.

Advanced Tools:
• Trace Designer: Full 2D Boundary Element Method solver for PCB transmission lines — Microstrip, GCPWG, Stripline, Differential, Coated, and Embedded variants. Multilayer substrates, trapezoidal traces, conductor roughness models, impedance synthesis, and E-field visualization.
• Analytical Line Models: Closed-form Z₀, loss, and synthesis for Coaxial, Parallel Lines, Twisted Pair, Microstrip, Stripline, Grounded CPW, Rectangular Waveguide, and Circular Waveguide.
• Transmission Line Models: Constant Phase, Electrical Length, and Physical models with loss and velocity factor.
• Resonator & Attenuator Designers: Built-in calculators for common circuit blocks.

Export & Share:
• Export professional PDF reports with schematics, charts, and plots.
• Export designs as SPICE netlists.
• Save high-resolution PNG/SVG images.

Perfect for RF engineering coursework, ham radio antenna tuning, and professional circuit design. Unlock the power of the Smith Chart in your pocket!

Contact:
For support or feature requests, please contact us.

(c) A3DComm

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Is Smith Designer safe for my device?

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Yes, Smith Designer follows the Google Play content guidelines to ensure safe use on your Android device.

What is an XAPK file, and what should I do if the Smith Designer I downloaded is an XAPK file?

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A file with .xapk extension is a compressed package file. It is a container file format that incorporates APK and additional associated files required for the installation. The XAPK format was introduced to package the APK file and OBB file together for a seamless delivery and installation process. XAPK format can help reduce the package size of application. On mobile phones, users need to install the XAPK installer first, and then install XAPK files through that installer. You can find the installer here:https://apkcombo.com/how-to-install/. But on PC client, you just need to put the file on LDPlayer.

Can I play Smith Designer on my computer?

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Yes, you can play Smith Designer on your computer by installing LDPlayer, an Android emulator. After installing LDPlayer, simply drag and drop the downloaded APK file into the emulator to start playing Smith Designer on PC. Alternatively, you can open the emulator, search for the game or app you want to play, and install it from there.

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