Title :
W-band micromachined circuit combining networks
Author :
Herrick, Katherine J. ; Katehi, Linda P B
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA
fDate :
6/1/2002 12:00:00 AM
Abstract :
In circuit-combining networks, low-loss interconnecting transmission lines are pivotal in reducing excess loss. Micromachined finite ground coplanar waveguides are used in this study as low-loss interconnects showing significant improvements in line loss while maintaining 50-Ω characteristic impedance. Wilkinson power dividers, reactive tee junctions, and right-angle bends are combined with micromachined interconnects in 1:2, 1:4, and 1:8 power-dividing networks and show measured loss reduction of 0.3-1.0 dB depending on circuit type and size from 85 to 95 GHz
Keywords :
coplanar waveguide components; interconnections; micromachining; millimetre wave circuits; power combiners; power dividers; 85 to 95 GHz; EHF; W-band; Wilkinson power dividers; circuit-combining networks; low-loss interconnecting transmission lines; micromachined finite ground CPW; micromachined interconnects; power-dividing networks; reactive tee junctions; right-angle bends; Coplanar transmission lines; Coplanar waveguides; Distributed parameter circuits; Impedance; Integrated circuit interconnections; Loss measurement; Power dividers; Power measurement; Power transmission lines; Propagation losses;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2002.1006429
