New Technology and Applications on Microwave Sensors

Presently, various microwave sensors have emerged. They have powerful performance and quite wide application domain. New technology and applications on microwave sensors are presented. A novel microwave sensor for measuring the properties of a liquid drop has been invented. A microwave based in-line sensor for steam quality is described, and test result is reported. Development a new tunable multiband UWB radar sensor and its applications to subsurface sensing is presented. Finally the technical challenges and developing prospect of microwave sensors are discussed.