Study of Schottky-contact coupled microstrip directional coupler

Author

El-Kordy, M. ; El-Fadl, A. Abou

Author_Institution

Dept. of Electr. Commun., Menoufia Univ., Egypt

fYear

1994

fDate

10-12 May 1994

Firstpage

280

Abstract

An accurate study of Schottky-contact coupled microstrip lines is presented. Green´s function has been used to determine the depletion layer capacitance of the even and odd modes. This technique has been applied to calculate the propagation characteristics and the coupling coefficient of the coupled lines. The dependence of the slow wave factor and the attenuation on the resistivity of the semiconductor substrate has been studied. It is found that the resistivity of 1.0 Ohm.cm is convenient with minimum attenuation. It is also noticed that, in the even mode more field lines passed through the conductive layer than those in the odd mode. With this technique, the calculated predictions of the coupled microstrip lines are in good agreement with the published data

Keywords

Green´s function methods; Schottky-barrier diodes; directional couplers; microstrip components; microstrip lines; transmission line theory; waveguide theory; Green´s function; Schottky-contact coupled microstrip directional coupler; coupled lines; coupling coefficient; depletion layer capacitance; even mode; fringing field capacitance; odd mode; predictions; propagation characteristics; semiconductor substrate; slow wave factor; Attenuation; Capacitance; Conductivity; Coupling circuits; Dielectric substrates; Directional couplers; Electrodes; Green´s function methods; Integral equations; Microstrip;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 1994. IMTC/94. Conference Proceedings. 10th Anniversary. Advanced Technologies in I & M., 1994 IEEE

Conference_Location

Hamamatsu

Print_ISBN

0-7803-1880-3

Type

conf

DOI

10.1109/IMTC.1994.352069

Filename

352069