Title :
Revisiting the waves on a coated cylinder by using surface-impedance model
Author :
Richard, Laurence ; Nosich, Alexander I. ; Daniel, Jean-Pierre
Author_Institution :
Lab. Antennes et Reseaux, Rennes I Univ., France
fDate :
8/1/1999 12:00:00 AM
Abstract :
The results of analytical and numerical study of the modes propagating on an impedance-surface circular cylinder are communicated. Besides the well-known axially symmetric Sommerfeld´s mode, another hybrid mode, having a single azimuthal variation, can propagate at any frequency. For a realistic cylindrical conformal antenna, the both wavenumbers are quite comparable. This may cause additional coupling between array antenna elements
Keywords :
antenna radiation patterns; conformal antennas; conformal coatings; electric impedance; electromagnetic wave propagation; microstrip antenna arrays; EM wave propagation; array antenna elements; axially symmetric Sommerfeld´s mode; azimuthal variation; coated cylinder; conformal printed antenna arrays; cylindrical conformal antenna; far-field radiation pattern; frequency; hybrid mode; impedance-surface circular cylinder; propagating modes; surface-impedance model; wavenumbers; Antenna arrays; Antennas and propagation; Boundary conditions; Dielectric substrates; Electromagnetic propagation; Frequency; Maxwell equations; Surface impedance; Surface waves; Wire;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
