Derivation of the Smith chart equations for use with MathCAD

Author

Delgada, H.J. ; Thursby, Michael H.

Author_Institution

Dept. of Electr. & Comput. Eng., Antenna Syst. Lab., Melbourne, FL, USA

Volume

40

Issue

2

fYear

1998

fDate

4/1/1998 12:00:00 AM

Firstpage

99

Lastpage

101

Abstract

A MathCAD document is described that provides the capability for plotting a set of normalized complex impedance data, which can be provided either from a data array or from an analytical expression. The generation of the Smith chart axis is done with analytical expressions, rather than with numerical techniques. An example of the use of this program is given, using a rectangular microstrip patch antenna model, generated by the HP Momentum electromagnetic simulator. The complete MathCAD document is provided as part of this paper

Keywords

CAD; antenna theory; electric impedance; electrical engineering computing; microstrip antennas; software packages; transmission line theory; HP Momentum electromagnetic simulator; MathCAD; Smith chart axis; Smith chart equations; analytical expression; data array; normalized complex impedance data; plotting; rectangular microstrip patch antenna model; Computational modeling; Electromagnetic modeling; Equations; Impedance; Laboratories; Microstrip antennas; Packaging; Systems engineering and theory; Transmission line antennas; Transmission line theory;

fLanguage

English

Journal_Title

Antennas and Propagation Magazine, IEEE

Publisher

ieee

ISSN

1045-9243

Type

jour

DOI

10.1109/74.683549

Filename

683549