Electronically Scanned Arrays MATLAB® Modeling and Simulation

chapter two

Electronically Scanned Array Fundamentals—Part 2

Arik D. Brown

Northrop Grumman Electronic Systems

Contents

2.1    Two-Dimensional ESA Pattern Formulation

2.2    ESA Spatial Coordinate Definitions

2.2.1    Antenna Coordinates

2.2.2    Radar Coordinates

2.2.3    Antenna Cone Angle Coordinates

2.3    Sine Space Representation

2.4    ESA Element Grid

2.4.1    Rectangular Grid

2.4.2    Triangular Grid

2.5    Two-Dimensional Pattern Synthesis Analysis

2.5.1    Pattern Synthesis

2.5.1.1    Ideal Patterns

2.5.1.2    Error Effects

2.5.2    Tilted ESA Patterns

2.5.3    Integrated Gain

2.6    MATLAB Program and Function Listings

2.6.1    Compute_2D_AF.m (Function)

2.6.2    Compute_2D_AFquant.m (Function)

2.6.3    Compute_2D_EP.m (Function) ...