Title :
Enhanced coupling property using a conical metal wire waveguide in the terahertz frequency range
Author :
Ji, Young Bin ; Lee, Eui Su ; Jang, Jin Seok ; Jeon, Tae-In
Author_Institution :
Div. of Electr. & Electron. Eng., Korea Maritime Univ., Busan
Abstract :
We investigated the coupling properties of a metal wire waveguide in the terahertz (THz) frequency range using theoretical simulations and experiments. Because a conical wire tip has a smaller tip diameter than a cylindrical wire tip, it has a greater THz field density than a cylindrical wire tip. After the coupling of the THz pulse to the receiver (Rx) using a 1-mum-diameter conical-wire tip, the detected THz pulse increased 5.3 times compared with when the 500-mum-diameter cylindrical-wire tip was used. This result agrees with that of theoretical simulations using high-frequency structure simulation (HFSS).
Keywords :
receivers; terahertz wave devices; waveguide couplers; waveguides; THz field density; THz pulse; conical metal wire waveguide; coupling property; high-frequency structure simulation; size 1 mum; size 500 mum; Antennas and propagation; Attenuation; Conductors; Dipole antennas; Frequency conversion; Pulse generation; Surface waves; Tungsten; Waveguide theory; Wire;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves, 2008. IRMMW-THz 2008. 33rd International Conference on
Conference_Location :
Pasadena, CA
Print_ISBN :
978-1-4244-2119-0
Electronic_ISBN :
978-1-4244-2120-6
DOI :
10.1109/ICIMW.2008.4665504