Example tuTorial

This tutorial includes an interactive simulator that emulates an Electronically-Steered Antenna (ESA) in two dimensions. It will be included in new course ENG 808, ESA/FPA Principles and Examples (coming soon), which will be included in the SatProf Training Membership.

In the course, we will use this simulator to demonstrate :

- How the pattern and sidelobes are affected by the Aperture Field Distribution (a.k.a. AFD, illumination, and taper)

- How the phase distribution steers the beam (scan angle)

- How beamwidth is affected by the number of elements

- How grating lobes are formed if the elements are too far apart

- How the individual element patterns affect ESA gain vs. scan angle

- How the phasors at each radiating element vary across the aperture as the ESA is steered

Experiment with it yourself using the sliders and radio buttons.  Click through the tutorial with the blue Next arrow in the bottom right.