Title :
Air-filled square coaxial transmission line and its use in microwave filters
Author :
Llamas-Garro, I. ; Lancaster, M.J. ; Hall, P.S.
Author_Institution :
Dept. of Electron., Univ. of Birmingham, UK
fDate :
6/3/2005 12:00:00 AM
Abstract :
A suspended coaxial transmission line with an air propagation medium is presented. The transmission line is made only of metal, thereby avoiding dielectric and radiation losses. Short-circuit stubs suspend the centre conductor of the coaxial structure which is used in the design of two dual-mode narrowband microwave filters. Stacked layers of copper sheets are used to form the square coaxial transmission line, which has low loss and low dispersion.
Keywords :
coaxial cables; coaxial waveguides; conducting bodies; copper; dispersion (wave); electromagnetic wave propagation; micromachining; microwave filters; millimetre wave filters; waveguide filters; air propagation medium; air-filled square coaxial transmission line; conductor; copper sheet; dispersion; dual-mode narrowband microwave filter; short-circuit stub; stacked layer; suspended coaxial transmission line;
Journal_Title :
Microwaves, Antennas and Propagation, IEE Proceedings
DOI :
10.1049/ip-map:20041159
