Dyadic Green´s function modifications for obtaining attenuation in microstrip transmission layered structures with complex media

Author

Krowne, Clifford M.

Author_Institution

Electron. Sci. & Technol. Div., Naval Res. Lab., Washington, DC, USA

Volume

50

Issue

1

fYear

2002

fDate

1/1/2002 12:00:00 AM

Firstpage

112

Lastpage

122

Abstract

Rigorous derivation of the correction to the Green´s function for a microstrip structure containing complex layered media is done for imperfect metallization. A hierarchy of formulas is found consistent with a full-wave electromagnetic code employing zero-thickness extent conductors for the guiding structure metal. At the top of the hierarchy are formulas that utilize new Green´s functions of the structure, whereas at the bottom are formulas that are only dependent on the conductor geometry and material properties. Numerical examples are provided to show the sensitivity of the propagation constant attenuation to those elegantly simple formulas at the bottom of the hierarchy

Keywords

Green´s function methods; losses; metallisation; microstrip lines; spectral-domain analysis; waveguide theory; attenuation constant; complex layered media; conductor geometry; dyadic Green´s function; full-wave electromagnetic code; guiding structure metal; imperfect metallization; material properties; microstrip transmission layered structures; propagation constant attenuation; spectral-domain code; zero-thickness extent conductors; Attenuation; Conducting materials; Conductivity; Conductors; Geometry; Material properties; Materials science and technology; Metallization; Microstrip; Microwave technology;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.981255

Filename

981255