Line of periodically arranged passive dipole scatterers

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. Reflective properties of arrays are studied, regimes of narrow-band and wide-band strong reflection are identified and conditions for these operations found. 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.