EMC Question of the Week: April 29, 2024
A stripline trace in a circuit board is 0.2 mm wide and 0.25 mm from the planes above and below it. The dielectric is FR-4 (εr = 4.3). What is the ratio of the electric field strength to the magnetic field strength associated with a signal propagating along the trace?
- about 50 Ω
- about 180 Ω
- about 377 Ω
- depends on trace thickness