Electronically Scanned Arrays MATLAB® Modeling and Simulation

chapter one

Electronically Scanned Array Fundamentals—Part 1

Arik D. Brown

Northrop Grumman Electronic Systems

Contents

1.1    Introduction

1.2    General One-Dimensional Formulation

1.2.1    Pattern Expression without Electronic Scanning

1.2.2    Pattern Expression with Electronic Scanning

1.3    ESA Fundamental Topics

1.3.1    Beamwidth

1.3.2    Instantaneous Bandwidth

1.3.3    Grating Lobes

1.4    One-Dimensional Pattern Synthesis

1.4.1    Varying Amplitude Distribution

1.4.2    Varying Frequency

1.4.3    Varying Scan Angle

1.5    Conformal Arrays

1.5.1    Formulation

1.5.1.1    Array Pattern for a Linear Array

1.5.2    Array Pattern for a Conformal Array

1.5.3    Example

1.5.3.1    Conformal One-Dimensional Array

1.6    MATLAB Program and ...