Title :
Leaky coaxial cable with adjustable coupling loss for mobile communications in complex environments
Author_Institution :
Inst. of Light Wave Technol., Northern Jiaotong Univ., Beijing, China
Abstract :
A new kind of leaky coaxial cable composed of an axially-slotted line covered with periodic metallic patches is proposed. The basic cable sets up a surface wave and does not radiate itself, but excites the patch apertures into radiation. The direction of the radiation field can be changed by adjusting the size and period of the patches according to the environmental application. A combined method that involves FDTD iteration and integration of the equivalent surface magnetic current is introduced in order to determine the radiation field accurately.
Keywords :
coaxial cables; finite difference time-domain analysis; losses; mobile communication; periodic structures; surface electromagnetic waves; FDTD iteration; adjustable coupling loss; axially-slotted line; complex environments; environmental application; equivalent surface magnetic current; integration; leaky coaxial cable; mobile communications; patch aperture excitation; patch period; patch size; periodic metallic patches; radiation field direction; surface wave; Apertures; Coaxial cables; Communication cables; Current density; Finite difference methods; Magnetic shielding; Mathematics; Mobile communication; Surface waves; Time domain analysis;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/7260.941785
