Title :
A New Technique For Estimating The Transverse Dielectric Constant Of Laminated Microwave Materials
Author :
Carbonini, L. ; Gallina, E. ; Pagana, E. ; Volpi, L.
Author_Institution :
Selex Commun. S.p.A., Genova
Abstract :
A new technique has been developed well suited to estimate the real part of the transverse dielectric constant of laminated microwave materials. Variations in the transverse dielectric constant influence the performance of circuits and antennas for which the electric field components parallel to the laminate surface are not negligible (e.g. suspended microstrip lines (SMLs) employed in the sandwich wire antenna (SWA)). The technique is based on the correlation between phase measurements on samples of the material in a waveguide using a vector network analyzer (VNA) and analytical formulas or finite element method (FEM) simulations. The technique has been verified to provide test results which correlate quite well with resonant methods based on cavity perturbation techniques
Keywords :
finite element analysis; laminates; microwave materials; network analysers; permittivity; phase measurement; cavity perturbation techniques; dielectric materials; electric field components; finite element method; laminate surface; laminated microwave materials; phase measurements; printed circuit testing; resonant methods; transverse dielectric constant; vector network analyzer; waveguide material; Antenna accessories; Circuits; Dielectric constant; Dielectric materials; Laminates; Microstrip antennas; Microstrip components; Microwave theory and techniques; Phase measurement; Wire; Dielectric materials; Finite element methods; Printed circuit testing; Waveguides;
Conference_Titel :
Microwave Conference, 2006. 36th European
Conference_Location :
Manchester
Print_ISBN :
2-9600551-6-0
DOI :
10.1109/EUMC.2006.281377
