Characterization of small apertures in the center conductor of a microstrip line

Author

Rao, K. Srinivas ; Pandharipande, V.M.

Author_Institution

Dept. of Electron. & Commun. Eng., Osmania Univ., Hyderabad, India

Volume

42

Issue

5

fYear

1994

fDate

5/1/1994 12:00:00 AM

Firstpage

907

Lastpage

910

Abstract

A closed form expression for the series reactance of an electrically small aperture in the center conductor of a microstrip line is determined using equivalent dipole moments due to the aperture and employing a quasistatic approach. The reactance of an inclined slot and a diamond shaped aperture are evaluated as a function of the aperture geometry in the lower microwave frequency band. The results based on this analysis are compared with those obtained from Oliner´s formula. Experimental results are in fairly good agreement with the results obtained using the proposed theory

Keywords

microstrip lines; waveguide theory; Oliner´s formula; aperture geometry; center conductor; closed form expression; diamond shaped aperture; equivalent dipole moments; inclined slot; microstrip line; quasistatic approach; series reactance; small apertures; Apertures; Conductors; Coupling circuits; Geometry; Microstrip; Microwave frequencies; Microwave theory and techniques; Propagation constant; Reflection; Scattering parameters;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.293549

Filename

293549