Title :
Radar Distance Measurements in Over-sized Circular Waveguides
Author :
Musch, T. ; Pohl, N. ; Gerding, M. ; Will, B. ; Hausner, J. ; Schiek, B.
Author_Institution :
Inst. of High Frequency Eng., Ruhr-Univ. Bochum
Abstract :
One of the main tasks of industrial radar systems is the determination of distances to a reflecting object. An important application is the measurement in metal tubes e.g. by means of the FMCW method. A comparison of measurements in metal tubes and in free-space shows that several problems arise due to the non-perfect coupling between the feeding antenna and the metal tube. This contribution describes the problems caused by dispersions and multi-mode propagations, and presents approaches for their solution
Keywords :
circular waveguides; distance measurement; dispersions problem; feeding antenna; industrial radar systems; metal tubes; multimode propagations; nonperfect coupling; over-sized circular waveguides; radar distance measurements; reflecting object; Antenna measurements; Bandwidth; Chirp modulation; Dielectric liquids; Distance measurement; Frequency; Horn antennas; Radar antennas; Radar measurements; Transfer functions;
Conference_Titel :
Microwave Conference, 2006. 36th European
Conference_Location :
Manchester
Print_ISBN :
2-9600551-6-0
DOI :
10.1109/EUMC.2006.281101
