Title :
Application of on-surface MEI method on wire antennas
Author :
Liu, Yaowu ; Lan, Kang ; Mei, Kenneth K.
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon, Hong Kong
fDate :
8/1/1999 12:00:00 AM
Abstract :
The formulas of the on-surface measured equation of invariance (OSMEI) for wire antennas are derived. The unknowns of each node on the antenna surface are expressed by the vector potential function and surface current density. The unknowns in the vicinity of each node are coupled in a linear equation and the coefficients of the linear equation are determined by the measured equation of invariance (MEI) method. The final impedance matrix obtained by the OSMEI is a highly sparse matrix. It demonstrates that the currents on thin wire antennas may also be solved by a differential equation-based formulation in addition to the conventional integral equations
Keywords :
current density; difference equations; electric potential; impedance matrix; integral equations; linear antennas; sparse matrices; wire antennas; OSMEI; antenna surface; coefficients; differential equation-based formulation; impedance matrix; integral equations; linear equation; linear wire antennas; on-surface MEI method; on-surface measured equation of invariance; sparse matrix; surface current density; vector potential function; Antenna measurements; Boundary conditions; Current density; Electromagnetic scattering; Integral equations; Linear antenna arrays; Sparse matrices; Surface impedance; Vectors; Wire;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
