Title :
Comparative Investigation of Coupling Reduction by EBG Surfaces for Quasi-Static RCS Measurement Systems
Abstract :
It is proposed to reduce the E-plane coupling of two horn antennas, a configuration often used for quasi-static radar cross section (RCS) measurements, by means of a printed metallo-dielectric electromagnetic bandgap (EBG) surface of the mushroom type. It is shown by experiments that the performance of the printed EBG surface is superior to that of standard absorbing materials and a corrugated surface of the soft type. The printed EBG surface and the corrugated surface are designed by finite-element method (FEM)-based eigenmode analysis.
Keywords :
dielectric materials; eigenvalues and eigenfunctions; finite element analysis; horn antennas; photonic band gap; radar cross-sections; EBG surfaces; FEM; absorbing materials; coupling reduction; eigenmode analysis; finite-element method; printed metallo-dielectric electromagnetic bandgap; quasi-static radar cross section measurement; rectangular horn antennas; Antenna measurements; Corrugated surfaces; Design methodology; Electromagnetic coupling; Electromagnetic measurements; Horn antennas; Metamaterials; Periodic structures; Radar antennas; Radar cross section; Corrugated surface; electromagnetic bandgap (EBG); isolation; metamaterials; mutual coupling; radar cross-section (RCS) measurements; soft surface;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2006.875284
