Title :
Waveguiding properties of a line of periodically arranged passive dipole scatterers
Author :
Tretyakov, S.A. ; Viitanen, A.J.
Author_Institution :
Helsinki Univ. of Technol., Espoo, Finland
Abstract :
Electromagnetic properties of line-periodical arrangements of passive loaded dipole scatterers are studied. An analytical solution for eigenwaves propagating along infinite lines of dipoles is presented. Conditions of existence of guided-wave solutions are established. It is shown that in arrays of capacitively-loaded antennas very rapid phase variations along the line are possible, which can possibly be used to realize wide-band superdirective reflectors.
Keywords :
antenna theory; dipole antenna arrays; directive antennas; eigenvalues and eigenfunctions; periodic structures; waveguide antenna arrays; analytical solution; capacitively-loaded antenna arrays; eigenwave propagation; eigenwaves; electromagnetic properties; guided-wave solutions; infinite lines of dipoles; line-periodical arrangements; passive loaded dipole scatterers; periodically arranged passive dipole scatterers; very rapid phase variations; waveguiding properties; wide-band superdirective reflectors; Antenna arrays; Dipole antennas; Electromagnetic scattering; Light scattering; Microwave devices; Optical filters; Optical scattering; Particle scattering; Phased arrays; Resonance light scattering;
Conference_Titel :
Microwave Symposium Digest, 2001 IEEE MTT-S International
Conference_Location :
Phoenix, AZ, USA
Print_ISBN :
0-7803-6538-0
DOI :
10.1109/MWSYM.2001.967107
