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

Volume

50

Issue

6

fYear

2002

fDate

6/1/2002 12:00:00 AM

Firstpage

1647

Lastpage

1651

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;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/TMTT.2002.1006429

Filename

1006429