Title :
Effect of a dielectric cover in a microstripline on a circular cylindrical substrate
Author :
da Costa Silva, F. ; Giarola, A.J. ; de Assis Fonseca, S.B. ; Soares, A.J.M.
Author_Institution :
Sch. of Electr. Eng., State Univ. of Campinas, Sao Paulo, Brazil
Abstract :
The effect of the dielectric cover on the effective dielectric constant of microstriplines on cylindrical substrates is investigated. The analysis is developed using dyadic Green´s functions in a layered cylindrical medium. The effective dielectric constant is obtained by imposing the condition that the tangential electric field component is zero on the metal strip. The dielectric cover is shown to have an appreciable effect on the effective dielectric constant.<>
Keywords :
dielectric materials; permittivity; strip lines; waveguide theory; circular cylindrical substrate; dielectric cover; dyadic Green´s functions; effective dielectric constant; layered cylindrical medium; metal strip; microstripline; tangential electric field component; Boundary conditions; Current; Dielectric constant; Dielectric substrates; Green´s function methods; Integral equations; Microstrip antennas; Microstrip components; Nonhomogeneous media; Strips;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1990. AP-S. Merging Technologies for the 90's. Digest.
Conference_Location :
Dallas, TX, USA
DOI :
10.1109/APS.1990.115157
