Evolution of Noise [From the Guest Editor´s Desk]

One of the technical committees in the Microwave Theory and Techniques Society (MTT-S) is MTT-14, the low-noise committee. Each committee has a goal of spreading knowledge about their subject by sponsoring workshops and panel sessions at the yearly symposium, providing lectures, and furthering knowledge to the microwave community. This special issue contains four articles contributed by the low-noise committee, which cover a wide range of topics. While they certainly do not cover all aspects of noise, we hope these articles will answer some questions and inspire some interest among readers in this large and fascinating subject.