Title :
Flexible circular waveguides at millimeter wavelengths from metallized Teflon tubing
Author :
Obrzut, J. ; Goldsmith, P.F.
Author_Institution :
Dept. of Phys. & Astron., Massachusetts Univ., Amherst, MA, USA
fDate :
3/1/1990 12:00:00 AM
Abstract :
Flexible waveguides for use at millimeter wavelengths have been fabricated by deposition of metallic film onto the composite-modified inside surface of Teflon tubing. The attenuation characteristics in the range 80 to 115 GHz show losses on the order of 0.1 dB/cm. Bending, twisting, and rotating to the limit of plastic mechanical stability (curvature radius typically >8 cm) have a negligible effect on the attenuation, and bend angles ⩽45° produce relatively small changes in the insertion phase
Keywords :
circular waveguides; losses; 80 to 115 GHz; EHF; attenuation characteristics; bend angles; composite-modified inside surface; flexible circular waveguides; insertion phase; losses; metallic film deposition; metallized Teflon tubing; millimeter wavelengths; plastic mechanical stability; Attenuation; Coatings; Dielectrics; Metallization; Millimeter wave technology; Optical surface waves; Optical waveguides; Polymer films; Semiconductor materials; Superconducting materials;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
