Title :
Complex permittivity measurement using the annular slot
Author :
Kratzenberg, E. ; Afsar, M.N. ; Wang, Y.
Author_Institution :
Haystack Obs., MIT, Westford, MA, USA
Abstract :
A new technique using a multi-port annular slot antenna for the measurement of complex permittivity is developed. The benefit of this now technique is that a two port network can be used on a planar device. The forward case of measuring S21 is combined with a simple but effective calibration technique to compensate for the feed network. The validity of the method is confirmed by using methanol and ethanol, which are commonly used reference materials, for comparison between expected and measured results.
Keywords :
S-parameters; permittivity measurement; slot antennas; 1 to 5 GHz; calibration technique; complex permittivity measurement; ethanol; feed network; methanol; multi-port annular slot antenna; planar device; two port network; Antenna measurements; Dielectric constant; Dielectric materials; Dielectric measurements; Feeds; Geometry; Impedance; Microstrip; Permittivity measurement; Slot antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1552269
