Title :
Full-wave modeling of coplanar waveguide discontinuities with finite conductor thickness
Author :
Tran, Allen M. ; Itoh, Tatsuo
Author_Institution :
Electromagnetic Syst., Hughes Aircraft Co., El Segundo, CA, USA
fDate :
9/1/1993 12:00:00 AM
Abstract :
An extended version of the spectral domain approach (SDA) is developed to analyze discontinuities in open coplanar waveguide with finite metallization thickness. By making use of the exact Green´s function in the spectral domain, the effects of surface wave and radiation phenomena are accurately accounted for. Both longitudinal and transverse components of the aperture electric fields are used in the analysis to allow modelling of structures with large transverse dimensions at high frequencies. The procedure also includes mode conversion near the discontinuities. As an illustration of the method, analytical steps and computed scattering parameters of the coplanar waveguide short-circuits and transitions are provided and compared against measured data
Keywords :
Green´s function methods; MMIC; S-parameters; microstrip components; microstrip lines; spectral-domain analysis; waveguide theory; aperture electric fields; coplanar waveguide discontinuities; exact Green´s function; finite conductor thickness; finite metallization thickness; full-wave modeling; longitudinal components; mode conversion; open CPW; radiation phenomena; scattering parameters; short-circuits; spectral domain approach; surface wave phenomena; transitions; transverse components; Apertures; Conductors; Coplanar waveguides; Distributed parameter circuits; Frequency; Metallization; Microstrip; Scattering parameters; Surface waves; Waveguide discontinuities;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
