Title :
On the radial component of the electric field for a monopole phased array antenna focused in the near zone
Author_Institution :
MIT Lincoln Lab., Lexington, MA, USA
fDate :
6/1/1992 12:00:00 AM
Abstract :
The near-zone radial and principal spherical components of the electric field for a linear phased array antenna that is focused at one to two aperture diameters in the near zone are investigated. The phased array antenna consists of thin monopole elements, which are analyzed by using the method of moments. A theoretical formulation is described and computer simulation results are presented. The results show that the radial component is negligible in the focused near-field region, which allows the principal component to be accurately computed from knowledge of only the tangential electric field on the focal plane
Keywords :
antenna phased arrays; antenna theory; electric fields; computer simulation; electric field; focused near-field region; linear phased array antenna; method of moments; near-zone radial; principal spherical components; thin monopole elements; Acoustic signal processing; Adaptive arrays; Antenna accessories; Antenna arrays; Antennas and propagation; Aperture antennas; Array signal processing; Linear antenna arrays; Phased arrays; Speech processing;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
