This groundbreaking text tells the reader everything he or she needs to know to ensure the optimal performance of complex microwave systems. This is the first book to cover all aspects of differential microwave systems, from passive and active differential components to balanced antennas and arrays, along with their applications: measurement technology and integration techniques. The benefits of differential components are illustrated with a systemic point of view, using several examples of partly or fully differential microwave systems. It is an ideal reference for graduate students, academic researchers, and industrial designers.