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Industrial sector is adopting sophisticated and intelligent instrumentation systems to monitor and control various physical quantities. Therefore, there is potential demand of compact, planar sensors to convert different physical quantities into electrical signals. Microstrip sensors are found to be excellent candidates for this purpose. This Monograph presents basics of microstrip sensors, different planar microstrip sensors for humidity and oil level measurement. It also covers the concept of microstrip patch antenna as a sensor to detect metal objects. Design, fabrication and testing of...

In day-to-day activities, portable wireless and mobile communication devices and technologies are becoming an integral part of human life. These systems need compact, high gain, high directivity and large bandwidth antennas to communicate voice, video, data, and multimedia information at high data rates. The limitations of microstrip patch antennas restrict to fulfill these challenges. This book presents different configurations of planar metamaterial antennas to overcome these limitations. In this book, metamaterial loaded ESAs, MI waveguide loaded microstrip patch antennas have been...