Far field computation for the FDTD method in curvilinear coordinates

Author

Ravard, K. ; Rostoll, C. ; Gillard, R. ; Citerne, J.

Author_Institution

INSA/LCST, CNRS, Rennes, France

Volume

3

fYear

1999

fDate

13-19 June 1999

Firstpage

1289

Abstract

This paper proposes a far field transformation when the near field is computed by the FDTD method in curvilinear coordinates. This general computation appears to be useful and suitable tool for the analysis of conformal microstrip antennas and circuits printed on arbitrary curved surfaces, whose shape influences the radioelectric performance, including the radiation pattern. This new calculation is applied to the study of the analytical case of a dipole. The validity of the computation is also demonstrated by comparison with measured data for a microstrip patch antenna and a microstrip patch array printed on metallic cylinders.

Keywords

antenna radiation patterns; finite difference time-domain analysis; microstrip antenna arrays; microstrip circuits; FDTD method; arbitrary curved surfaces; conformal microstrip antennas; conformal microstrip circuits; curvilinear coordinates; far field computation; metallic cylinders; patch array; radiation pattern; radioelectric performance; Antenna measurements; Antenna radiation patterns; Circuit analysis computing; Dipole antennas; Finite difference methods; Microstrip antenna arrays; Microstrip antennas; Pattern analysis; Performance analysis; Shape;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1999 IEEE MTT-S International

Conference_Location

Anaheim, CA, USA

Print_ISBN

0-7803-5135-5

Type

conf

DOI

10.1109/MWSYM.1999.779623

Filename

779623