An approximate parallel‐plate waveguide model of a lossy multilayered microstrip line

An analytical model of a lossy microstrip line that is valid at frequencies up to 40 GHz is proposed. The line consists of a two‐layer dielectric substrate and lossy strip. The model is based on the theory of the TM mode of a lossy parallel‐plate waveguide filled with a medium of effective permittivity. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 45: 23–26, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20712