Moment method analysis of finite rectangular waveguide phased arrays
Abstract
A method of moments formulation for small finite planar phased arrays of rectangular waveguides in an infinite ground plane is investigated. Piecewise sinusoidal-uniform surface patches are used as the basis and testing functions for the unknown equivalent magnetic currents of each aperture. The block-Toeplitz symmetry property for rectangular grid arrays is utilized in the solution of the system of equations. Data are presented for 11 x 11 arrays with various element sizes, element spacings, and scan angles. Good agreement with data in the literature is shown. The analysis is particularly efficient for E-plane and H-plane scans for arrays having rectangular waveguide-fed apertures excited by the dominant mode.
- Publication:
-
IEEE Transactions on Antennas and Propagation
- Pub Date:
- July 1982
- DOI:
- 10.1109/TAP.1982.1142874
- Bibcode:
- 1982ITAP...30..554F
- Keywords:
-
- Antenna Design;
- Method Of Moments;
- Phased Arrays;
- Rectangular Waveguides;
- Waveguide Antennas;
- Antenna Feeds;
- Apertures;
- Design Analysis;
- Electrical Impedance;
- Planar Structures;
- Propagation Modes;
- Systems Simulation;
- Communications and Radar