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 PC.\n\nA limited version, Smith Designer Lite, can be found here: https://apps.microsoft.com/detail/9N2N0TGWJVGS\n\nKey Features:\n\u2022 Interactive Smith Chart: Visualize impedance trajectories with real-time updates.\n\u2022 Schematic Editor: Drag-and-drop interface for L, C, R, Transmission Lines (Physical/Electrical), Transformers, and S2P blocks.\n\u2022 Amplifier Design: Overlay Gain Circles (Ga, Gp), Stability Circles, and Noise Circles to design LNAs and PAs.\n\u2022 Real-Time Tuning: Tune components via sliders or by dragging points directly on the chart. Memory Traces let you compare before/after states.\n\u2022 Auto Match: Automatically synthesize L-network matching circuits.\n\u2022 Simultaneous Conjugate Matching for unconditionally stable devices, and provisions to help stabilize conditionally stable networks.\n\u2022 Optimization: Gradient descent optimizer to fine-tune component values.\n\u2022 Impedance Profiles: Define complex, frequency-dependent Source and Load impedances using S1P files.\n\u2022 Comprehensive Overlays: Visualize VSWR circles, Constant Q arcs, Stability circles, and Noise circles (requires noise parameters).\n\u2022 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 Smith Tube 3D view to analyze load pull performance across frequency. View 3D antenna radiation patterns with interactive rotation and polar cuts.\n\nAnalysis & Simulation:\n\u2022 Frequency Sweep: Plot S-Parameters, Return Loss, and Group Delay over bandwidth.\n\u2022 Monte Carlo Analysis: Simulate manufacturing tolerances (Uniform, Gaussian, Triangular) to ensure design robustness. Supports frequency sweeps for bandwidth yield analysis.\n\u2022 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.\n\u2022 Vendor Libraries: Import component models (S2P/industry-standard LPB) directly into your design.\n\nAdvanced Tools:\n\u2022 Trace Designer: Full 2D Boundary Element Method solver for PCB transmission lines \u2014 Microstrip, GCPWG, Stripline, Differential, Coated, and Embedded variants. Multilayer substrates, trapezoidal traces, conductor roughness models, impedance synthesis, and E-field visualization.\n\u2022 Analytical Line Models: Closed-form Z\u2080, loss, and synthesis for Coaxial, Parallel Lines, Twisted Pair, Microstrip, Stripline, Grounded CPW, Rectangular Waveguide, and Circular Waveguide.\n\u2022 Transmission Line Models: Constant Phase, Electrical Length, and Physical models with loss and velocity factor.\n\u2022 Resonator & Attenuator Designers: Built-in calculators for common circuit blocks.\n\nExport & Share:\n\u2022 Export professional PDF reports with schematics, charts, and plots.\n\u2022 Export designs as SPICE netlists.\n\u2022 Save high-resolution PNG/SVG images.\n\u2022 Share network and project files to collaborate with others.\n\nPerfect for RF engineering coursework, ham radio antenna tuning, and professional circuit design. Unlock the power of the Smith Chart in your pocket!\n\nFor support or feature requests, please contact us.