Antenna Fundamentals

Abstract

How does an antenna pick up a signal and convert it to something useful to a receiving circuit? What is the current path for the signals received or transmitted from an antenna? Why are there different types of antennas, and why do they have different shapes? What are the standard engineering terms associated with antenna technology? How are signals from antennas amplified? It is the starting point for understanding many EMC requirements and test procedures and for resolving compliance issues. The basics of antennas can be deduced from fundamental principles of electromagnetics and electric circuits. Even a rudimentary understanding can prove to be invaluable in solving EMC problems.