A resistively loaded bowtie antenna for pulse radiation: FDTD analysis and optimization

Author

Shlager, K.L. ; Smith, G.S. ; Maloney, J.G.

Author_Institution

Sch. of Electr. Eng., George Inst. of Technol., Atlanta, GA, USA

fYear

1993

fDate

June 28 1993-July 2 1993

Firstpage

830

Abstract

The resistively loaded bowtie antenna has been optimized for pulse radiation using the FDTD (finite-difference time-domain) method as the primary design tool. To analyze this structure with available computer resources, several approximations and simplifications had to be introduced into the FDTD model: an approximate model for the feed, staircased edges, a ballooned grid, and closely spaced absorbing boundary conditions. All of these factors can potentially reduce the agreement of the FDTD results with experiment; nevertheless, the FDTD analysis can still serve as a useful design tool for optimizing the antenna.<>

Keywords

boundary-value problems; conical antennas; finite difference time-domain analysis; optimisation; FDTD analysis; absorbing boundary conditions; approximations; ballooned grid; design; finite-difference time-domain; optimization; pulse radiation; resistively loaded bowtie antenna; staircased edges; Antenna feeds; Antenna measurements; Coaxial components; Finite difference methods; Geometry; Grid computing; Loaded antennas; Optimization methods; Time domain analysis; Transmission line antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1993. AP-S. Digest

Conference_Location

Ann Arbor, MI, USA

Print_ISBN

0-7803-1246-5

Type

conf

DOI

10.1109/APS.1993.385220

Filename

385220