Article | REF: E1000 V3

Introduction to microwaves

Author: Jean CHAZELAS

Publication date: June 10, 2021

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1. Terminology

An electromagnetic wave is characterized by :

  • the description at any instant of the amplitude and orientation of the electric E and magnetic H fields constituting it. The ratio of the components transverse to the direction of propagation E T /H T is the transverse wave impedance Z T . The orientation of the electric field defines polarization;

  • its frequency f (in Hz or multiples thereof) ;

  • its propagation speed v. In a vacuum, this is equal to that of light, i.e. c = 2.997.10 8 m.s -1 ; in any medium v = c/n where n is the index of the medium, generally...

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