DocumentCode
2780591
Title
A Theory of How to Improve the Radiation of the Photoconductive Antenna
Author
Li, Di ; Huang, Yi
Author_Institution
Liverpool Univ.
fYear
2007
fDate
21-23 March 2007
Firstpage
499
Lastpage
502
Abstract
The photoconductive antenna is the most widely used device to generate and detect the terahertz (THz) wave but it has a limitation that the generated power is very low. There have been some investigations into how to increase the radiated THz power and it was found that to excite at a point is a practical method to improve the efficiency. In this paper, a theory is developed to support this idea. The analysis shows the reason why excitation at a point can generate higher THz power than the whole gap excitation of photoconductive antenna.
Keywords
antenna radiation patterns; photoconducting devices; submillimetre wave antennas; THz wave; photoconductive antenna radiation; terahertz wave; Antenna theory; Dipole antennas; Electrons; Laser excitation; Laser theory; Laser transitions; Photoconducting devices; Photoconductivity; Power generation; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Antenna Technology: Small and Smart Antennas Metamaterials and Applications, 2007. IWAT '07. International Workshop on
Conference_Location
Cambridge
Print_ISBN
1-4244-1088-6
Electronic_ISBN
1-4244-1088-6
Type
conf
DOI
10.1109/IWAT.2007.370183
Filename
4227499
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