The design of a broad-band hybrid in X-band waveguide
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Essentially, this paper deals with the design and development of a specialized type of waveguide directional coupler commonly known as a hybrid. A preliminary discussion concerning Maxwell's Equations and the portion of the electromagnetic spectrum with frequencies from 1,000-30,000 megacycles, known as the microwave region, is presented as necessary background material. The phenomenon of skin effect and other undesirable complications present at these high frequencies is considered. As a solution to some of these problems, improved transmission lines in the form of coaxial cables and rectangular waveguide are treated at length; the emphasis being mainly on waveguides.
Thesis (M.A.)--Boston University