Design of a photoconductive antenna with an angled DC bias connection on an extended hemispherical lens substrate

Author

Truong Khang Nguyen ; Ikmo Park

Author_Institution

Dept. of Electr. & Comput. Eng., Ajou Univ., Suwon, South Korea

fYear

2013

fDate

5-8 Nov. 2013

Firstpage

1197

Lastpage

1199

Abstract

The input impedance and radiation characteristics of photoconductive antennas with different DC bias connection angles printed on an extended hemispherical lens made of high-dielectric-constant substrate was presented. Antennas with different bias connection angles exhibited different gain and radiation efficiency spectra for a specific lens geometry. The antennas with larger DC bias connection angles provided stable input impedance and improved antenna gain levels, particularly in the low-frequency region. This indicates that the DC bias connection angle has specific effects on the overall performance of the photoconductive antenna design.

Keywords

coplanar waveguides; dipole antennas; geometry; strip lines; submillimetre wave antennas; THz coplanar stripline dipole antennas; angled DC bias connection; extended hemispherical lens substrate; high-dielectric-constant substrate; improved antenna gain levels; input impedance; lens geometry; photoconductive antenna design; radiation characteristics; radiation efficiency; Dipole antennas; Impedance; Lenses; Microwave antennas; Stripline; Substrates; Terahertz antenna; coplanar stripline dipole antenna; extended hemispherical lens; high-dielectric-constant substrate; traveling wave;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference Proceedings (APMC), 2013 Asia-Pacific

Conference_Location

Seoul

Type

conf

DOI

10.1109/APMC.2013.6695069

Filename

6695069