An authoritative guide to the latest developments for the design of low-cost smart antennas Traditional smart antenna systems are costly, consume great amounts of power and are bulky size. Low-cost Smart Antennas offers a guide to designing smart antenna systems that are low cost, low power, and compact in size and can be applied to satellite communications, radar and mobile communications. The authors — noted experts on the topic — provide introductions to the fundamental concepts of antennas, array antennas and smart antennas. The book fills a gap in the literature by presenting the design techniques of low-cost radio frequency (RF) smart antennas as well as approaches for implementing the hardware of the antenna and the beamforming network (BFN). A comprehensive and accessible book, Low-cost Smart Antennas not only presents an up-to-date review of the topic but includes illustrative case studies that contain in-depth explorations of the theory and technology of smart antennas. While other resources highlight the software (signal processing algorithms), this book is unique by focusing on the antenna hardware. This important book: Offers an introduction to the most recent developments of the design of low-cost smart antennas and their applications Presents a unique book that puts the focus on antenna hardware Includes a variety of case studies that clearly demonstrate the implementation of current design techniques Introduces both fundamental theories as well as more advanced topics Written for students and researchers and antenna engineers, Low-cost Smart Antennas explores the most recent advances in the field with an emphasis on antenna hardware.

An authoritative guide to the latest developments for the design of low-cost smart antennas Traditional smart antenna systems are costly, consume great amounts of power and are bulky size. Low-cost Smart Antennas offers a guide to designing smart antenna systems that are low cost, low power, and compact in size and can be applied to satellite communications, radar and mobile communications. The authors - noted experts on the topic - provide introductions to the fundamental concepts of antennas, array antennas and smart antennas. The book fills a gap in the literature by presenting the design techniques of low-cost radio frequency (RF) smart antennas as well as approaches for implementing the hardware of the antenna and the beamforming network (BFN). A comprehensive and accessible book, Low-cost Smart Antennas not only presents an up-to-date review of the topic but includes illustrative case studies that contain in-depth explorations of the theory and technology of smart antennas. While other resources highlight the software (signal processing algorithms), this book is unique by focusing on the antenna hardware. This important book: -Offers an introduction to the most recent developments of the design of low-cost smart antennas and their applications -Presents a unique book that puts the focus on antenna hardware -Includes a variety of case studies that clearly demonstrate the implementation of current design techniques -Introduces both fundamental theories as well as more advanced topics Written for students and researchers and antenna engineers, Low-cost Smart Antennas explores the most recent advances in the field with an emphasis on antenna hardware.

An authoritative guide to the latest developments for the design of low-cost smart antennas Traditional smart antenna systems are costly, consume great amounts of power and are bulky size. Low-cost Smart Antennas offers a guide to designing smart antenna systems that are low cost, low power, and compact in size and can be applied to satellite communications, radar and mobile communications. The authors — noted experts on the topic — provide introductions to the fundamental concepts of antennas, array antennas and smart antennas. The book fills a gap in the literature by presenting the design techniques of low-cost radio frequency (RF) smart antennas as well as approaches for implementing the hardware of the antenna and the beamforming network (BFN). A comprehensive and accessible book, Low-cost Smart Antennas not only presents an up-to-date review of the topic but includes illustrative case studies that contain in-depth explorations of the theory and technology of smart antennas. While other resources highlight the software (signal processing algorithms), this book is unique by focusing on the antenna hardware. This important book: Offers an introduction to the most recent developments of the design of low-cost smart antennas and their applications Presents a unique book that puts the focus on antenna hardware Includes a variety of case studies that clearly demonstrate the implementation of current design techniques Introduces both fundamental theories as well as more advanced topics Written for students and researchers and antenna engineers, Low-cost Smart Antennas explores the most recent advances in the field with an emphasis on antenna hardware.

This thesis presents a number of design methodologies and a cost-effective measurement methodology of low-cost, low-power consumption smart antennas for applications in wireless and satellite communications. To reduce cost, the Electronically Steerable Parasitic Array Radiator (ESPAR) antennas, which are low-cost solutions compared with traditional smart antennas, are employed. To reduce the antenna size, the methods, in which both the driven element and the parasitic elements can be made small, are developed. Then these small components are used to construct different compact smart antennas for different applications. The contributions to the design methodologies are focused on: (1) compactness (i.e. small size both on antenna height and radius whilst achieving reasonable directionality and beam-forming abilities); (2) high-gain (i.e. low-profile whilst still achieving higher antenna gain by using the novel designed small directors); (3) broad-bandwidth; (4) dual-band; (5) polarisation re- configurability; (7) antenna array (i.e. using Multiple-Input-Multiple-Output (MIMO) technologies to improve channel capacity); (8) adoption of electromagnetic band-gap (EBG) Metarnaterials realizing steerable beams; (9) integration into other antennas such as the Yagi-Uda antenna, circularly-polarised (Cl') antenna, and a reconfigurable reflectarray antenna. Furthermore, the application to Wireless Sensor Network (WSN) communications within a multipath environment is assessed where significant improvement over system throughput is demonstrated against commonly used omni-directional antennas. All the antenna designs are characterised numerically ar1d also, where possible, experimentally. The contributions to the measurement methodology are focused on developing cost-effective measurement approaches for direct smart antenna Signal-to-Interference Ratio (SIR) and radiation pattern characterisation prior to input to a transceiver. Several kinds of low-profile and low-cost ESP AR antennas have been designed, constructed and measured for the first time and specific advances are: Low-profile folded monopole ESPAR Low-profile Yagi-Uda antenna where, for the first time, the height of the Yagi-Uda antenna has been reduced by 50%. Low-profile folded monopole ESP AR with the small director array achieving higher antenna gain where, for the first time, the antenna height of the ESPAR antenna has been reduced from typically 0.25 ~ to 0.1 ~. ii.

As the growing demand for mobile communications is constantly increasing, the need for better coverage, improved capacity, and higher transmission quality rises. Thus, a more efficient use of the radio spectrum is required. Smart antenna systems are capable of efficiently utilizing the radio spectrum and is a promise for an effective solution to the present wireless systems' problems while achieving reliable and robust high-speed high-data-rate transmission. The purpose of this book is to provide the reader a broad view of the system aspects of smart antennas. In fact, smart antenna systems comprise several critical areas such as individual antenna array design, signal processing algorithms, space-time processing, wireless channel modeling and coding, and network performance. In this book we include an overview of smart antenna concepts, introduce some of the areas that impact smart antennas, and examine the influence of interaction and integration of these areas to Mobile Ad-Hoc Networks. In addition, the general principles and major benefits of using space-time processing are introduced, especially employing multiple-input multiple-output (MIMO) techniques.