Accession Number : ADA140711

Title :   Analysis of Transmission Lines on Semiconductor Substrate.

Descriptive Note : Technical rept.,

Corporate Author : TEXAS UNIV AT AUSTIN DEPT OF ELECTRICAL ENGINEERING

Personal Author(s) : Shih,Y C ; Itoh,T

PDF Url : ADA140711

Report Date : 01 Mar 1984

Pagination or Media Count : 59

Abstract : An efficient numerical method based on the application of Galerkin's method in the spectal domain is proposed to obtain the propagation constant and characteristic impedance of planar transmission lines used in monolithic microwave integrated circuits. First, the transmission-line properties of a conductor-backed coplanar waveguide are analyzed. For a fixed substrate thickness, the characteristic impedance and phase constant may be varied independently by adjusting the width of the center strip and slots in the transmission line. Then microstrip lines and coplanar be varied independently by adjusting the width of the center strip and slots in the transmission line. Then microstrip lines and coplanar waveguides formed with MIS and Schottky barrier contacts are analyzed. Depending on the frequency and the resistivity of the semiconductor substrate, three different types of fundamental modes are predicted. The calculated slow-wave factors and attenuation constants agree well with experimental results. (Author)

Descriptors :   *Transmission lines, *Planar structures, *Strip transmission lines, *Microwave transmission, *Waveguides, Integrated circuits, Substrates, Frequency response, Schottky barrier devices, Dielectrics, Numerical methods and procedures, Semiconductors, Thickness, Attenuation, Propagation, Constants, Air

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE