Title :
Ultra-Wideband Measurement of the Dielectric Constant and Loss Tangent of Concrete Slabs
Author :
Shen, Yizhu ; Law, Choi Look ; Dou, Wenbin
Author_Institution :
State Key Lab. of Millimeter Waves, Southeast Univ., Nanyang
Abstract :
This paper is to investigate the dielectric properties of concrete slab and propagation characterization of ultra-wideband (UWB) frequency signals in the range of 3 to 5 GHz through the concrete slab. An insertion transfer function is obtained through frequency-domain measurement in free space in the presence and absence of the concrete slab. The dielectric constant and loss tangent of three concrete slabs are then calculated using a single-pass analysis method. Explanation has been given that the pulse shape distortion is mainly due to dispersion and attenuation of the concrete slab more than the interior multi-pass reflection.
Keywords :
concrete; dielectric loss measurement; microwave measurement; permittivity measurement; slabs; transfer functions; ultra wideband technology; UWB frequency signals; concrete slabs; dielectric constant; frequency 3 GHz to 5 GHz; frequency-domain measurement; insertion transfer function; interior multipass reflection; loss tangent; pulse shape distortion; single-pass analysis method; ultra-wideband measurement; Concrete; Dielectric constant; Dielectric loss measurement; Dielectric measurements; Distortion measurement; Frequency domain analysis; Loss measurement; Slabs; Transfer functions; Ultra wideband technology; Dielectric constant; concrete slab; loss tangent; ultra-wideband;
Conference_Titel :
Microwave Conference, 2008 China-Japan Joint
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-3821-1
DOI :
10.1109/CJMW.2008.4772488
