Scientists and mathematicians of the nineteenth century laid the foundation of
telecommunication and wireless technology, which has affected all facets of
modern society. In 1864, James C. Maxwell put forth fundamental relations
of electromagnetic fields that not only summed up the research findings of
Laplace, Poisson, Faraday, Gauss, and others but also predicted the propagation
of electrical signals through space. Heinrich Hertz subsequently verified this
in 1887, and Guglielmo Marconi transmitted wireless signals across the Atlantic
Ocean successfully in 1900. Interested readers may find an excellent discussion
of the historical developments of radio frequencies (RFs) and microwaves
in the IEEE Transactions on Microwave Theory and Technique (Vol. MTT-32,
September 1984).

• Teacher: lee 李旺秋