Interactive Calculator – RO4003C
Microstrip Z₀ Calculator (Rogers RO4003C)
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Characteristic Impedance Z₀ — Effective Permittivity εe — Phase Velocity (× c) — Guided Wavelength λg — Quarter-wave length λ/4 —
50 Ω Trace Width Reference for RO4003C
Substrate H W for 50 Ω εe λg at 2.4 GHz λg at 10 GHz 0.203 mm (8 mil) 0.44 mm 2.78 74.5 mm 17.9 mm 0.508 mm (20 mil) 1.10 mm 2.79 74.4 mm 17.9 mm 1.524 mm (60 mil) 3.30 mm 2.81 74.2 mm 17.8 mm
RO4003C Loss at Key Frequencies (100 mm trace)
Frequency Total Loss FR4 comparison 2.4 GHz ~0.5 dB ~1.7 dB (FR4) 5.8 GHz ~1.0 dB ~4.0 dB (FR4) 10 GHz ~1.5 dB ~7.0 dB (FR4) 24 GHz ~4.0 dB not usable
RF View Microstrip Calculator: Enter εr=3.55 for RO4003C to compute 50 Ω trace width, εe, and quarter-wave lengths at your frequency. Available offline in the Utilities tab.
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