Title :
A note on the complex Poynting vector and on the fractional current on the upper surface of a microstrip line
Author :
Lewin, Leonard ; Ruehle, T.
Author_Institution :
Univ. of Colorado, Boulder, CO, USA
fDate :
1/1/1981 12:00:00 AM
Abstract :
It is shown how the two forms

and

should be used when extracting reactance information from the complex Poynting vector in a microstrip problem. When the strip is narrow it is necessary to distinguish between the actual and the effective dielectric constants of the substrate in the formulation of the fields, and this leads to a determination of an axial magnetic field component with a certain fraction of the axial current diverted to the top of the strip conductor.
Keywords :
Microstrip antennas; Admittance; Antennas and propagation; Apertures; Frequency; Microstrip antenna arrays; Microstrip antennas; Permittivity; Phased arrays; Polarization; Strips;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.1981.1142544