Advantages of analog microwave over digital microwave
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Microwaves refer to the electromagnetic rays with frequencies between 300MHz and 300GHz in the electromagnetic spectrum. Microwaves are small when compared with the waves used in radio broadcasting. Their range is in between the radio waves and infrared waves. Microwaves travel in straight lines and they will be affected lightly by the troposphere. They don’t require any medium to travel. Metals will reflect these waves totally. Non metals such as glass and particles are partially transparent to these waves.
Microwaves are suitable for wireless transmission of signals of having larger bandwidth. Microwaves are most commonly used in satellite communications, radar signals, phones, and navigational applications. Other applications where the microwaves used are medical treatments, drying materials, and in households for the preparation of food.
Practically a microwave technique tends to move away from the resistors, capacitors, and inductors used with lower-frequency radio waves. Instead, distributed and transmission-line theory are more useful methods for design and analysis. Instead of open-wire and coaxial lines used at lower frequencies, waveguides are using. And lumped elements and tuned circuits are replaced by cavity resonators or resonant lines. Even at higher frequencies, where the wavelength of the electromagnetic waves becomes small when compare to the size of the structures used to process them, microwave has become a latest technology, and the methods of optics are used. High-power microwave sources use specialized vacuum tubes to generate microwaves.