Title :
Waveguide attenuation measurements at 890 GHz
Author :
Batt, R.J. ; Doswell, A. ; Harris, D.J.
Author_Institution :
Portsmouth Polytechnic, Department of Electrical & Electronic Engineering, Portsmouth, UK
Abstract :
A modified H guide has been proposed as a low-loss low-mode waveguide for the submillimetre-wave region, and is supported by theoretical studies and microwave model measurements. A resonance technique using guide-length variation with temperature change for attenuation and mode-characteristic measurement is shown to be feasible at 890 GHz with an HCN laser. Guide attenuations less than 8 dB/m are obtained in initial measurements on a submillimetre waveguide.
Keywords :
attenuation measurement; microwave measurement; optical waveguides; 890 GHz; HCN laser; attenuation measurement; guided light propagation; microwave measurement; optical waveguide; resonance technique; submillimetre wave region;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19740111
