LTspice validation suite for single- and double-balanced mixers

Supporting data and code for the article "The Analytical Investigation of Inductor-Coupled Mixers" by Arash Ghasemi. The package contains the 37 LTspice netlists used to validate closed-form and scalar equations for transformer-coupled single- and double-balanced mixers built from six device families (Shockley diodes, thermionic diodes, depletion JFET/MESFETs, vacuum triodes, MOSFETs, and BJT/HBTs), together with their simulated outputs, seven Python analysis programs, per-case data and metrics, figures, and the classification of every netlist. All analyses can be re-run on the included waveforms without LTspice (python3 report/validation/run_all_validations.py --skip-ltspice). See README.md inside the archive for the layout, the mapping from the article's tables and figures to the files, and reproduction instructions. All results are simulations; no hardware measurements are included. The NXP BFU760F transistor model used in two supporting simulations is not redistributed.