코플래너 웨이브가이드(CPW/GCPW) 임피던스 계산기
This calculator estimates the characteristic impedance (Z₀) and effective dielectric constant (ε_eff) of 코플래너 웨이브가이드 (CPW) and 접지형 코플래너 웨이브가이드 (GCPW) structures using Conformal Mapping.
Geometry
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Press Calculate or modify parameters to view output.
CPW & GCPW Fundamentals
코플래너 웨이브가이드 (CPW):
A transmission line structure featuring a single center conductor routed alongside two flanking ground planes on the same layer. The separation gaps (slot width \(S\)) and line width (\(W\)) determine the impedance. Since it avoids vias to ground, it is ideal for connecting shunt elements in high-speed RF modules.
접지형 코플래너 웨이브가이드 (GCPW):
Also known as Coplanar Waveguide with Backing Plane (CBCPW). This structure appends a solid ground plane to the back of the dielectric substrate, enhancing field confinement, optimizing isolation, and minimizing radiation leakage at high microwave frequencies.