Title :
Performance enhancement of millimetre-wave resonators using elevated CPW
Author :
Aghamoradi, F. ; McGregor, Ian ; Elgaid, K.
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. of Glasgow, Glasgow, UK
Abstract :
A method for overcoming the poor performance exhibited by coplanar waveguide (CPW) short circuit stubs at sub-millimetre-wave frequencies is presented. The method uses a CPW with ground and signal traces elevated 5 m above a 625 m-thick GaAs substrate using a standard MMIC-compatible airbridge process. The elevated CPW is also shown to offer lower attenuation per unit length than a conventional CPW transmission line.
Keywords :
MMIC; coplanar transmission lines; coplanar waveguides; millimetre wave devices; resonators; GaAs; MMIC-compatible airbridge process; coplanar waveguide; elevated CPW; millimetre-wave resonator; millimetre-wave transmission line structure; short circuit stubs; size 625 mum;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2009.2348
