A Cursory Historical Overview on the Evolution of Wireless Communications Magdalena Salazar-Palma*, Senior Member, IEEE, and Tapan K. Sarkar**, Fellow, IEEE *Signal Theory and Communications Department, Universidad Carlos III de Madrid, Spain, e-mail:
[email protected] ** Electrical Engineering and Computer Science Department, Syracuse University, USA, e-mail:
[email protected] Abstract — This presentation offers a historical overview on also demonstrated that inductive loading of the circuit the evolution of field theory for wireless communications. improved its performance. In 1855 French engineer Jean- Index Terms — History, wireless, radio, communications. Mothée Gaugain studied the rectifying action between two metal balls in an evacuated chamber, producing the first I. INTRODUCTION Electric Valve. In 1861, Scottish physicist and mathematician, James Electricity and magnetism are as old as human civilization. Clerk Maxwell (Fig. 4), the father of electrical engineering, The Chinese navigated the Indian Ocean using magnetite wrote to British scientist Michael Faraday (Fig. 4), indicating floating on mercury, around 1000 BC. The Baghdad battery that he has vindicated his theory on action at a distance and have (Fig. 1) was radio carbon dated to 250 BC, long before the reached the conclusion that light was electromagnetic in nature Italian physicist Alessandro Giuseppe Antonio Anastasio using dimensional analysis. Maxwell could still be called the Count Volta (Fig. 1) constructed his pile in 1799. During the father of electrical engineering and the greatest scientist of the seventeen and the eighteen century a number of experiments last century even if he would have not done any work on and inventions were carried out by scientists all over the electromagnetic theory! He provided a general methodology world.