How Interconnects Work: Minimal-reflection 90-degree bends in strip lines

2mm microstrip 90 degree bend without and with miter - simulations with Sonnet : r/ElectricalEngineering

How Interconnects Work: Characteristic Impedance and Reflections

Corners in PCB or IC metal tracks

a) Equivalent refractive index profile (n) of a rib waveguide bend

Why can't light entering a denser medium be totally reflected? - Quora

How Interconnects Work: Localization of Coaxial Connector Launches

How Interconnects Work: Reflections from Discontinuities

Should you worry about 90 degree bends in circuit board traces?, 2021-04-13

How Interconnects Work: Reflections from Discontinuities

Why does light bend when it travels from one medium to another medium? Why does the direction of light change when its velocity changes? - Quora