Title :
Suspended Ring Resonator for Dielectric Constant Measurement of Foams
Author :
Waldron, Isaac ; Makarov, Sergey N. ; Biederman, Scott ; Ludwig, Reinhold
Author_Institution :
Dept. of Electr. & Comput. Eng., Worcester Polytech. Inst., MA
Abstract :
The present study introduces a microstrip-based resonant device that is specifically intended for measurements of polymer foam permittivity at frequencies of 1 to 10 GHz. The device utilizes the standard microstrip ring resonator. However, the ring and the ground plane/feed network are physically located in separate planes, enabling the placement of an arbitrary sample of material to be measured in the substrate of the ring resonator. A transmission line model is developed and tested in order to predict the frequency response of the circuit. Experimental data is reported and compared with theory. The measurements indicate a high potential resolution of the method
Keywords :
dielectric resonators; microstrip resonators; microwave measurement; permittivity measurement; polymer foams; 1 to 10 GHz; dielectric constant measurement; feed network; frequency response; ground plane; microstrip ring resonator; microstrip-based resonant device; polymer foam permittivity measurements; suspended ring resonator; transmission line model; Circuit testing; Dielectric constant; Dielectric measurements; Frequency measurement; Microstrip; Optical ring resonators; Permittivity measurement; Polymer foams; Resonance; Transmission line measurements; Dielectric measurement; permittivity measurement; resonators;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2006.880708
