impedance-matching

RF matching network synthesizer, optimizer, and S-parameter analyzer with live VNA control

Browser-based Nevanlinna-Pick solver: manifold-coupled multiplexer synthesis (Martinez 2019) and broadband impedance matching, running entirely in WebAssembly.

2.4 GHz power amplifier design project featuring analytical matching network calculations in Mathcad, PCB layout in Altium Designer, CAD component integration, and full-wave 3D electromagnetic simulation in CST Studio Suite.

Design and analytical synthesis of a 15 GHz Ku-band microwave low-noise amplifier based on the ATF-26884 GaAs pHEMT transistor and Rogers RO4350B substrate. Features Mathcad matching derivations, CST 3D electromagnetic simulations, and Altium Designer PCB layouts.

Design, analytical calculation, and 3D electromagnetic simulation of an H10 (TE10) rectangular waveguide section operating at 4.2 GHz (C-band). Includes Mathcad worksheets, SolidWorks CAD/STEP models, CST Studio Suite simulation project, and full technical documentation.

Analytical synthesis (Mathcad) and circuit simulation (Micro-Cap) of a 100 kHz passive LC filter based on Foster's 1st canonical form with a 110 kHz transmission zero and 50 Ohm matched impedance. Released under CERN-OHL-P v2.

Calculating three- and four-element impedance matching (transform) networks for magnetic resonance preamplifier decoupling.

869 MHz rectangular microstrip patch antenna on FR-4 substrate with a quarter-wave matching transformer. Includes analytical Mathcad calculations, full-wave 3D CST Studio Suite models, transient EM analysis, VSWR/Z-parameters optimization, and farfield directivity patterns under CERN-OHL-P v2.

Analytical calculations (Mathcad) and 3D electromagnetic simulation (CST Studio Suite) of a circular waveguide with a matching transition designed for 6.21 GHz.

Analytical calculations (Mathcad), 3D CAD modeling (SolidWorks, STEP), and electromagnetic simulation (CST Studio Suite) of a microstrip transmission line operating at 1.015 GHz.

The Resonance mechanics of the Foreign. No dimensions. No believers. Only trajectories and meat / What actually couples with your BIOS when the sky changes color. / Read at your own phase risk. / (Xenomorphs were a metaphor. The math is real).

2.4 GHz MIFA trace antenna design and simulation. Modeled using Ansys HFSS with Optimetrics sweeps to optimize geometry. Implemented on a custom 2-layer KiCad PCB using a coplanar waveguide. Includes LiteVNA verification diagnostics and a calculated Pi impedance matching network.

Collection of DelphiScript/Pascal automation scripts for Altium Designer, specializing in PCB layout optimization, RF/microwave microstrip taper synthesis, and discrete slice merging into solid regions.

This repository contains a microwave impedance matching project. The project uses Keysight ADS to design input and output networks for a 9 GHz transistor. The design uses microstrip lines and open-circuit stubs.

Interactive Smith chart learning app with Touchstone analysis, impedance matching, and linked RF plots.

An application for calculating resistor values from color codes, SMD codes, and finding standard values

Antenna-first lab for 1U CubeSat: reproducible UHF monopole sizing + matching/VSWR + verification plan, designed to plug into COMMS-first link budgets.

An interactive Smith chart web app for RF engineers/ Students, built with React, Vite, and TypeScript. Plot impedance/admittance points, toggle between Z/Y/ZY modes, and step through transmission-line calculations with a full solution log, undo/redo, and PNG export.

Interactive, accessible Smith chart for lossless single shunt-stub impedance matching—entirely browser-based.