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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...

Microwave imaging is an up coming excellent diagnostic tool to detect tumor tissues in early stages of cancer. Many findings in this direction have been reported till date. But most of the work is directed towards detection of breast cancer and very few literature is available on detection of skin cancer which is most common of all cancer types. This book focuses on development of a cost effective simulation tool for detection of skin cancer. The finite difference time domain (FDTD) method hybridized with various optimization techniques like neural network, bacterial foraging algorithm etc....