Title :
Propagation of terahertz pulses along planar Goubau lines
Author :
Akalin, T. ; Lampin, J.F. ; Desplanque, L. ; Peytavit, E. ; Treizebré, A.
Author_Institution :
CNRS, Villeneuve d´´Ascq
Abstract :
We present measurements and electromagnetic simulations of planar Goubau lines (PGL) on quartz substrate up to 1 THz. PGLs are single strip transmission lines. A very high-efficiency planar transition between a standard coplanar waveguide (CPW) and PGL is demonstrated A time-domain electroabsorption sampling method is used to measure the reflected and transmitted waveforms. Transmission of picosecond pulses is demonstrated. We obtain 5 dB of losses around 200 GHz and 12 dB around 500 GHz for a 4.2 mm-long 5 mum-wide strip and two transitions in a back to back topology. The value at 200 GHz is also confirmed with a frequency-domain measurement.
Keywords :
coplanar waveguides; submillimetre wave propagation; transmission lines; waveguide theory; waveguide transitions; CPW; coplanar waveguide; electromagnetic simulations; frequency 200 GHz; frequency 500 GHz; loss 12 dB; loss 5 dB; picosecond pulses transmission; planar Goubau lines; planar transition; quartz substrate; reflected waveforms; single strip transmission lines; terahertz pulses propagation; time-domain electroabsorption sampling method; transmitted waveforms; Coplanar transmission lines; Coplanar waveguides; Electromagnetic measurements; Electromagnetic propagation; Electromagnetic waveguides; Measurement standards; Planar transmission lines; Strips; Submillimeter wave propagation; Transmission line measurements;
Conference_Titel :
Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics, 2006. IRMMW-THz 2006. Joint 31st International Conference on
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0400-2
Electronic_ISBN :
1-4244-0400-2
DOI :
10.1109/ICIMW.2006.368776
