Title :
E-plane performance of two-dimensional strip-element phased arrays with inhomogeneous substrates
Author_Institution :
Dept. of Electr. Eng., Minnesota Univ., Minneapolis, MN, USA
Abstract :
The finite-element method of lines is examined as a versatile numerical tool for the analysis of infinite planar arrays. The two-dimensional formulation presented is distinguished by the fact that it allows for finite conductivity of the metal structures, strip thickness, and inhomogeneous dielectric substrates. The numerical solution is used to investigate the E-plane scanning performance of arrays with inhomogeneous substrates, for the purpose of alleviating or eliminating scan blindness problems. A simple example of such an array is one in which the individual strip elements are supported by dielectric slabs of finite extent. The influence on the array characteristics of the finite metallization conductivity and strip thickness is also assessed.<>
Keywords :
antenna phased arrays; antenna theory; finite element analysis; microstrip antennas; microwave antenna arrays; 2D strip element phased arrays; E-plane scanning performance; dielectric slabs; finite conductivity; finite-element method; infinite planar arrays; inhomogeneous dielectric substrates; metal structures; microstrip antennas; numerical solution; scan blindness; strip thickness; Blindness; Conductivity; Dielectric substrates; Differential equations; Finite element methods; Maxwell equations; Microstrip antenna arrays; Microstrip antennas; Phased arrays; Probes;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-0730-5
DOI :
10.1109/APS.1992.221432
