Optimized basis functions for slot antennas excited by coplanar waveguides

Author

Neto, Andrea ; De Maagt, Peter ; Maci, Stefano

Author_Institution

Sub-mm Wave Adv. Technol. Group, Caltech-Jet Propulsion Lab., Pasadena, CA, USA

Volume

51

Issue

7

fYear

2003

fDate

7/1/2003 12:00:00 AM

Firstpage

1638

Lastpage

1646

Abstract

A method is proposed for the analysis of slot antennas excited by coplanar waveguides. First, a standard integral equation for the continuity of the magnetic field is formulated. Then the appropriate equivalent magnetic currents of the method of moments are represented in terms of entire-domain basis functions which synthesize the resonant behavior of the slot and the field in proximity of the feeding source and of the bends. In order to define these basis functions, canonical geometries are identified, whose Green´s functions have been found analytically. The accuracy and the effectiveness of the method in terms of convergence rate and number of unknowns is demonstrated by comparison with a standard fine meshing full-wave analysis.

Keywords

Green´s function methods; antenna feeds; convergence of numerical methods; coplanar waveguides; integral equations; magnetic fields; method of moments; slot antennas; Green´s functions; bends; canonical geometries; center-fed slot; convergence rate; coplanar waveguides; entire-domain basis functions; equivalent magnetic currents; feeding source; fine meshing full-wave analysis; integral equation; magnetic field continuity; method of moments; optimized basis functions; resonant behavior; slot antennas; Convergence; Coplanar waveguides; Geometry; Green´s function methods; Integral equations; Magnetic analysis; Magnetic fields; Magnetic resonance; Moment methods; Slot antennas;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2003.813636

Filename

1210811