Written for an audience of RF microwave engineers and graduate-level students, this text covers important parts of oscillator development: from fundamentals, device & board technology, supply noise, analysis methods, design, and optimization methodologies, to practical design of various single and coupled oscillators. With an emphasis on systematic composition of the whole design procedure, chapters include transistor models, large-signal S-parameters, resonator choices, calculation & optimization of noise in oscillators, validation circuits for wideband resonator VCOs, and more. Extensive appendices show specific examples, calculations, designs, and CAD solutions.