Microwave tubes are vacuum electron devices used for the generation and amplification of radio frequencies in the microwave range. An established technology area, the use of tubes remains essential in the field today for high-power applications. The culmination of the author's 50 years of industry experience, this authoritative resource offers you a thorough understanding of the operations and major classes of microwave tubes. Minimizing the use of advanced mathematics, the book places emphasis on clear qualitative explanations of phenomena. This practical reference serves as an excellent introduction for newcomers to the field and offers established tube engineers a comprehensive refresher. Professionals find coverage of all major tube classifications, including klystrons, traveling wave tubes (TWTs), magnetrons, cross field amplifiers, and gyrotrons.

Offers detailed discussions of operating principles of helix and coupled-cavity traveling wave tubes, descriptions of RF interactions of electrons with electric fields, and the basic theories of electron bunching and traveling wave interactions.

Anastasia is coming of age but her transfer to womanhood is not easily accomplished and far from normal. She starts seeing dead people. Her maternal family history is overshadowing her thoughts. Every other generation a female descendent is born with particular powers. Once in a lifetime, when the stars align a great one is born. With this greatness is a tremendous burden and plagued by evil. A constant battle rages on dark and light, good or evil who will reign forever. Is Anastasia ready to accept her family heritage. Ready or not, she will have to fight evil to save her life.