This book will appeal to scientists and engineers who are concerned with the design of microwave wideband devices and systems. For advanced (ultra)-wideband wireless systems, the necessity and design methodology of wideband filters will be discussed with reference to the inherent limitation in fractional bandwidth of classical bandpass filters. A Much-Needed Systematic Guide to the Design of (Ultra-)Wideband Bandpass Filters Ultra-wideband (UWB) technology has attracted a lot of attention in recent years, owing to its numerous applications in high-speed and high-capacity wireless communications. At the same time, conventional synthesis methodologies were shown to be inadequate for bandpass filtering design covering a wide or ultra-wide bandpass. This book responds to the need for a practical guide to emerging design techniques for advanced (ultra-)wideband bandpass filters. The authors introduce microwave wideband bandpass filter design theory using the multiple-mode resonator (MMR) along with the alternative synthesis design method for wideband bandpass filters, particularly for filters with FCC-defined UWB frequencies from 3.1 to 10.6 GHz. They demonstrate the application of both methods in the design of (ultra-)wideband bandpass filters, showing how to use these methods to implement filters in different frequencies and materials, calculate initial dimensions for various filter configurations, and more. Special features of this book include: * Complete design procedures and tabulated design parameters for both MMR and the synthesis design method * A large number of easy-to-follow design examples, which can be modified by readers to achieve their own design specifications * Coverage of the basics, including transmission line theories and comparison with the design of conventional narrow-band bandpass filters Microwave Bandpass Filters for Wideband Communications is an invaluable guide for researchers and engineers wishing to improve their design cycle and filter performance. It is also a useful reference for newcomers to the field, who wish to gain a better understanding of (ultra-)wideband bandpass design theory.