ABSTRACT
The wire medium consisting of a two-dimensional (2D) or three-dimensional (3D) rectangular lattice of low-loss wire grids has been known for a long time, and it has been extensively studied in microwave lens design and for the synthesis of surface reactance. Important consequences of the spatial dispersion (SD) are appearance of additional waves and necessity to use additional boundary conditions (ABC) for solution of any boundary-value problems. The chapter considers electromagnetic properties of unbounded double-wire medium (DWM) using effective medium (EM) theory. Effects of SD are predicted in for waves propagating in all directions in double and triple WM with connected wires. However, numerical simulations, implemented in for DWM, did not show the influence of the SD on wave propagation in a plane of wire lattices. At the same time, dispersion characteristics for the waves, propagating orthogonally to the wires, certainly are in agreement with the nonlocal model.
