Title :
Experimental results on microshield transmission line circuits
Author :
Weller, T.M. ; Rebeiz, G.M. ; Katehi, L.P.
Author_Institution :
NASA Center for Space Terahertz Technol., Michigan Univ., Ann Arbor, MI, USA
Abstract :
Experimental results on microshield stepped-impedance filters and transitions to grounded coplanar waveguide are presented. Microshield shows potential for improved performance relative to current planar transmission line geometries. The filter response compared very well with ideal transmission line theory when effective line length corrections for impedance steps were used. The best transition performance demonstrates an S/sub 11/ below -15 dB from 20 to 40 GHz. The fabrication and design of the transitions and filters are also discussed.<>
Keywords :
microstrip components; microstrip lines; microwave filters; 20 to 40 GHz; effective line length corrections; filter response; grounded coplanar waveguide; microshield stepped-impedance filters; microshield transmission line circuits; transition performance; transitions; transmission line theory; Coplanar waveguides; Distributed parameter circuits; Fabrication; Filtering theory; Filters; Geometry; Impedance; Planar transmission lines; Transmission line theory; Waveguide transitions;
Conference_Titel :
Microwave Symposium Digest, 1993., IEEE MTT-S International
Conference_Location :
Atlanta, GA, USA
Print_ISBN :
0-7803-1209-0
DOI :
10.1109/MWSYM.1993.276747
