books.google.com - A periodic surface is an assembly of identical elements arranged in a one or two-dimensional array. Such surfaces have various effects on incident electromagnetic waves. Their applications range from antennas to stealth aircraft.This book discusses finite antenna arrays and how to minimize the radar...https://books.google.com/books/about/Finite_Antenna_Arrays_and_FSS.html?id=iguOv7MUhf0C&q=parabolic&utm_source=gb-gplus-shareFinite Antenna Arrays and FSS