Itohowo Umoinyang

Electromagnetism Itohowo Umoinyang

Introduction To Transmission LinesThe concept of electromagnetic waves has fascinated man for so many years that man has asked so many questions varying from why does stars twinkle? to why does magnetic needle deflect? to why does light travel from sun when there is no medium between?. In modern day, questions varying from how do we have tv re-ception? to how do we have a radio station operating to howdoes a mobile phone work?, why are certain things halted when they are kept in side a microwave all these phenomenon revolves around electromagnetism. Electromagnetism can be divide into;(1)low frequency and high power(2)high frequency and low powerIn this course we shall concentrate on the high frequency and low power properties of electromagnetic waves.the phenomenon like electrical machines, electrical power generators, transformers, distribution of electrical energy fall into the category of low frequency high power .whereas in modern systems like mobile communications, radars, satellite, optical fibers, fall into the high frequency low power. so we mainly investigating what happens as frequency increases in electromagnetic waves and how they can be transmitted from one position to another without los