Title :
Low-frequency characterization of lossy material
Author :
Müller, Johannes ; Jacob, Arne F.
Author_Institution :
Inst. fur Hochfrequenztech., Tech. Univ. Hamburg-Harburg, Hamburg, Germany
Abstract :
The challenging characterization of very lossy materials at low frequencies is investigated by means of a coaxial sensor. The sensitivity of the sensor is analyzed and optimized for lossy materials. Systematic error sources are successfully identified and eliminated by means of a redundant calibration using a partly known reference material. The lower frequency range of the sensor is thereby extended to frequencies below 50 MHz. Owing to the novel calibration the measurement results reliably show little fluctuation.
Keywords :
absorbing media; microwave detectors; coaxial sensor; lossy material; low-frequency characterization; sensor sensitivity; systematic error sources; Calibration; Coaxial cables; Coaxial components; Conducting materials; Dielectric materials; Frequency; Microwave sensors; Permittivity measurement; Sensor phenomena and characterization; Waveguide junctions;
Conference_Titel :
Microwave Conference, 2010 German
Conference_Location :
Berlin
Print_ISBN :
978-1-4244-4933-0
Electronic_ISBN :
978-3-9812668-1-8
