Intermodulation Distortion in Microwave and Wireless Circuits

The explosive deployment of new digital wireless services has turned bandwidth into an invaluable telecommunications commodity. Therefore, RF circuit design engineers are continuously being confronted with tougher and tougher linearity specifications, so that systems can show smaller nonlinear signal perturbation and
adjacent-channel spurious responses. Unfortunately, and despite the amount of scientific material available on this matter, there is still an enormous gap between the restricted club of experts on nonlinear analysis, and the much wider group of practitioners. Even if the rapid growth of wireless markets could be thought as momentary—
and we do not think it is—the difficulty of incorporating scientific knowledge in real circuit design is determined by a pervasive problem: the lack of preparation most engineers have on nonlinear phenomena. Actually, it is widely recognized by engineers and scholars that the vast majority of electronics and telecommunications
engineering programs almost exclusively address linear circuits and systems, leaving uncovered the effects of nonlinearity. So, nowadays, engineers feel a significant difficulty in dealing with those aspects, as they are tied down by an insuperable incapability when struggling to overcome their basic knowledge deficiencies.

Từ khóa: Wireless Circuits, RF circuit design, circuit design, thiết kế mạch, công nghệ thiết kế, công nghệ khoa học