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Antennas for Small Mobile Terminals pdf

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Antennas for Small Mobile Terminals.



Small Antennas for Small Mobile Terminals by Kyohei Fujimoto: recent wireless systems have become increasingly smaller in dimensions, and hence antennas installed in such systems must follow the miniaturization trend and inevitably be small. As the general requirements of wireless systems have increased, the antennas applied to those systems have also made progress, evolving from simple structures to sophisticated ones. 

Meanwhile, wireless systems arise not only in communication systems but also in a wide variety of other systems such as control, identification, sensor, data transmission, body-centric communications, and wireless power transmission. Such wireless systems have a large variety of styles to be appropriate for their practical use. Many of those systems are used in mobile status as well as a fixed status. Typical mobile terminals should be small in dimensions and compact in form. They generally are built with a boxlike structure, some of them are handheld and easy to carry and manipulate, and typically they have simple operating functions. 

It should be noted that progress in the systems has created variation in their styles, resulting in the evolution of significant convenience for practical operations. Almost all of the antennas used for those small mobile terminals are some sort of built-in type. The performance of antennas installed in such mobile terminals should be analyzed as a unified system composed of the antenna and its mobile terminal, because an antenna installed within a terminal does not perform independently and often is highly dependent upon its environmental conditions, including the terminal structure and other nearby hardware made with conducting or dielectric materials. 

This book is intended to provide readers with the latest information that should be useful for engineers and researchers who are dealing with antennas used in modern mobile terminals for various systems related to communications, sensors, data transmission, wireless power transmission, medical devices, control applications, and so forth. 

Practicality is intended; readers are provided with less heavily theoretical treatments, with the main emphasis centering on practical applications and on providing useful information for the design and development of small antennas used in mobile terminals with built-in small antennas.

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