Minin I. Microwave and Millimeter Wave Technologies. Modern UWB antennas...2010

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Novel generation wireless system is a packet switched wireless system with wide area coverage and high throughput. It is designed to be cost effective and to provide high spectral efficiency . The 4th wireless uses Orthogonal Frequency Division Multiplexing, Ultra Wide Radio Band and millimeter wireless and smart antenna. Highly directive, planar UWB antennas are gaining more and more attention, as required in many novel and important applications. With the release of the microwave and millimeter band, applications for shortrange and high-bandwidth different new devices are primary research areas in UWB systems