Most engineers fear the Smith Chart. Kulkarni dedicates entire chapters to step-by-step visual solutions. The PDF versions floating around usually have high-contrast scans of these charts, making them easier to trace during online exams.
: Detailed analysis of lumped-element circuit models, Smith Charts, and impedance matching (stub matching). Waveguides microwave and radar engineering by mkulkarni pdf
: Detailed sections on Gunn diodes, IMPATT diodes, PIN diodes, and parametric amplifiers. Radar Systems Most engineers fear the Smith Chart