DocumentCode
1247630
Title
Photoconductive Terahertz antenna with radial symmetry
Author
Deibel, J.A. ; Escarra, Matthew D. ; Mittleman, Daniel M.
Author_Institution
Dept. of Electr. & Comput. Eng., Rice Univ., Houston, TX, USA
Volume
41
Issue
5
fYear
2005
fDate
3/3/2005 12:00:00 AM
Firstpage
226
Lastpage
228
Abstract
It has been demonstrated recently that it is possible to guide broadband Terahertz pulses utilising a novel coaxial waveguide. This technique is hindered by the difficulty in exciting the radially polarised fundamental mode of the waveguide. To optimise mode matching, a novel radially symmetric photoconductive Terahertz antenna is proposed. Using finite element method simulations and analytical calculations, it is shown that this antenna can generate the desired radial polarisation.
Keywords
antenna radiation patterns; coaxial waveguides; electromagnetic wave polarisation; finite element analysis; mode matching; photoconducting devices; submillimetre wave antennas; symmetry; Terahertz time-domain spectroscopy; broadband pulse guiding; coaxial waveguide radially polarised fundamental mode; finite element simulations; mode matching; photoconductive Terahertz antenna; radial polarisation pattern; radial symmetry antenna; radially symmetric antenna; radiated far-field pattern;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20057824
Filename
1406563
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