Download or read book Wideband Phased Array Rectenna Design and Modeling for Wireless Power Transmission written by Jonathan Noel Hansen and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Microstrip patch antennas are the most common type of printed antenna due to a myriad of advantages which encourage use in a wide range of applications such as: wireless communication, radar, satellites, remote sensing, and biomedicine. An initial design for a stacked-patch, broadband, dual-polarized, aperture-fed antenna is tested, and some adjustments are made to improve performance. The design goal is to obtain a 3 GHz bandwidth centered at 10 GHz for each polarization. Once the single-element design is finalized, it is used in a 4x1 array configuration. An array increases the gain, and by utilizing variable phase-shifters to each element, the pattern can be electronically steered in a desired direction. The phase-can be easily adjusted. The result of this new phased array design is a wide bandwidth system with dual-polarization which can be electronically steered. Rectennas (rectifying antennas) are used in wireless power transmission (WPT) systems to collect microwave power and convert this power into useable DC power. They find use in many areas such as space power transmission, RFID tags, wireless sensors, and recycling ambient microwave energy. The ability to simulate rectenna designs will allow for an easier method of analysis and tuning without the time and expense of repetitive fabrication and measurement. The most difficult part of rectenna simulation is a good diode model, and since different diodes have dissimilar properties, a model must be specific to a particular diode. Therefore, a method of modeling an individual diode is the most critical part of rectenna simulation. A diode modeling method which is based on an equivalent circuit and compatible with harmonic balance simulation is developed and presented. The equivalent circuit parameters are determined from a series of S-parameter measurements, and the final model demonstrates S-parameters in agreement with the measured data. An aperture-coupled, high-gain, single-patch rectenna is also designed and measured. This rectenna is modeled using the presented method, and the simulation shows good agreement with the measured results. This further validates the proposed modeling technique.

Download or read book Systems Engineering of Phased Arrays written by Rick Sturdivant and published by Artech House. This book was released on 2018-11-30 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phased arrays, while traditionally used in radar systems, are now being used or proposed for use in internet of things (IoT) networks, high-speed back haul communication, terabit-per-second satellite systems, 5G mobile networks, and mobile phones. This book considers systems engineering of phased arrays and addresses not only radar, but also these modern applications. It presents a system-level perspective and approach that is essential for the successful development of modern phased arrays. Using practical examples, this book helps solve problems often encountered by technical professionals. Thermal management challenges, antenna element design issues, and architectures solutions are explored as well as the benefits and challenges of digital beam forming. This book provides the information required to train engineers to design and develop phased arrays and contains questions at the end of each chapter that professors will find useful for instruction.

Download or read book Design and Optimization of Sensors and Antennas for Wearable Devices Emerging Research and Opportunities written by Singh, Vinod Kumar and published by IGI Global. This book was released on 2019-09-20 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wearable continuous monitoring systems are necessary in risky environments such as mining and diving and are especially important in the medical monitoring of patients both in medical facilities and at home. All these applications of monitoring with data transmission functions can be achieved by using wearable antennas. Recently, possibilities of connecting completely independent appliances with textiles have emerged. However, full success will be achieved only when antennas and all related components are entirely converted into 100% textile materials. Design and Optimization of Sensors and Antennas for Wearable Devices: Emerging Research and Opportunities provides innovative insights on the development of adaptable materials and textile antennas that can be used in the construction of wearable devices that are biocompatible and offer high conductivity, low cost, simplistic manufacturing, are comfortable for the wearer, and are water/climate safe and condition amicable. The content within this publication examines data transmission, wearable computing, and medical applications. It is designed for engineers, manufacturers, researchers, academicians, and scientists who are interested in the development of wearable technologies.

Download or read book The Proceedings of the 17th Annual Conference of China Electrotechnical Society written by Kaigui Xie and published by Springer Nature. This book was released on 2023-03-30 with total page 1314 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers outstanding papers presented at the 17th Annual Conference of China Electrotechnical Society, organized by China Electrotechnical Society (CES), held in Beijing, China, from September 17 to 18, 2022. It covers topics such as electrical technology, power systems, electromagnetic emission technology, and electrical equipment. It introduces the innovative solutions that combine ideas from multiple disciplines. The book is very much helpful and useful for the researchers, engineers, practitioners, research students, and interested readers.

Download or read book Array Pattern Optimization written by Jafar Ramadhan Mohammed and published by BoD – Books on Demand. This book was released on 2019-03-27 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Array pattern optimization is a very important and necessary issue in the majority of modern communication systems in a variety of applications such as sonar, radar, navigation, wireless communications, and many other engineering fields. Classical methods for array pattern synthesis have worked mainly with analytical models that are linear, local and, thus, their performances were not optimum. They have always been designed with closed-form mathematical models. Unlike these analytical methods, the global optimization methods with powerful computing tools offer optimum solutions. During the last few years, the design of the antenna arrays has been a topic of significant research activity. This book presents recent advances in the field of array pattern optimization. It is targeted primarily toward students and researchers who want to be exposed to a wide variety of antenna array design and optimization. It includes five chapters as well as the introductory chapter. These five chapters are categorized into five different areas depending on the application. These applications are ordered to address interference suppression, electronic toll collection, mmWave and ultra-wideband, integrated antennas, and educational packages for modeling smart antenna for 5G wireless communications. The book has the advantage of providing a collection of applications that are entirely independent and self-contained; thus, the interested reader can choose any chapter and skip to another without losing continuity.

Download or read book New Methods in Ultra wideband Array Design and Finite difference Time domain Modeling of Memristive Devices written by Micah Dennis Gregory and published by . This book was released on 2013 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Antennas for Small Mobile Terminals written by Kyohei Fujimoto and published by Artech House. This book was released on 2018-09-30 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the progress and rapid increase in mobile terminals, the design of antennas for these small systems is becoming more and more important. This forward-looking volume offers professionals current and comprehensive coverage of the design, development, and implementation of small, compact, and lightweight antennas in mobile communication terminals. The book discusses a wide range of communication systems, from Radio-frequency identification (RFID), and near field communications (NFC), to wireless power transmission (WPT) and broadband wireless networks. Engineers learn how to use small antennas in mobile phones, wearable systems, laptop computers, radio watches, and broadband wireless networks such as WLAN and WiMAX. This definite reference covers the critical applications today’s professionals need to understand, from antennas for IoT and antenna design for 5G mm-wave devices, to body-centric communication systems and antennas for unmanned aerial vehicles.

Download or read book Design and Simulation of Wearable Antennas for Healthcare written by Singh, Vinod Kumar and published by IGI Global. This book was released on 2024-09-13 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wearable antennas have gained significant attention in recent years due to their potential applications in healthcare and internet of things (IoT). These antennas are designed to be integrated into wearable devices such as smartwatches, fitness trackers, and medical sensors, allowing them to communicate wirelessly with other devices. These technologies can be used to provide real-time data and feedback on a variety of physiological and environmental parameters, which can be used to improve health outcomes, increase efficiency in various industries, and promote overall well-being. Design and Simulation of Wearable Antennas for Healthcare explores various aspects of wearable antenna technology, with a focus on their design and simulation. The book delves into the innovative concepts of energy-harvesting antennas, which can power wearable devices using energy from the environment or the human body, eliminating the need for external batteries. Covering topics such as mobile health systems, healthcare devices, and human-centric networking, this book is an essential resource for academicians, graduate and postgraduate students, scientists, industry professionals, medical professionals, researchers, and more.

Download or read book Far Field Wireless Power Transfer and Energy Harvesting written by Naoki Shinohara and published by Artech House. This book was released on 2022-10-31 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the next generation of power transfer in which power is transmitted via energy harvesting applications. It describes far-field Wireless Power Transfers (WPT) and why it is considered a special type of power transfer where power is transmitted through wireless power sources like radio waves, Wi-Fi, and TV broadcasting signals rather than utilizing near field wireless power sources. The book is the first of its kind to explain far-field WPT and energy harvesting technology from the same viewpoint. It provides you with an application-oriented review of how the latest WPT and energy harvesting tech can solve practical real-world problems. You will also get insight to R & D activities and regulations for commercial products in the future market. The book helps you understand the theory of far field WPT, and you will learn about the rising market for power transfer, factory automation (FA) and Internet-of-Things (IoT) sensors. With its comprehensive and unique coverage combining WPT and energy harvesting technology, this is an excellent resource for researchers, graduate students and engineers looking to further their knowledge on the theory of far field wireless power transfer.

Download or read book Wideband Multiband and Smart Antenna Systems written by Mohammad Abdul Matin and published by Springer Nature. This book was released on 2021-09-21 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides current R&D trends and novel approaches in design and analysis of broadband, multiband, and smart antennas for 5G and B5G mobile and wireless applications, as well as the identification of integration techniques of these antennas in a diverse range of devices. The book presents theoretical and experimental approaches to help the reader in understanding the unique design issues and more advanced research. Moreover, the book includes chapters on the fundamentals of antenna theory. The book is pertinent to professionals and researchers working in the field of antenna engineering; it is written for graduate students, researchers, academics, and industry practitioners who want to improve their understanding in the current research trends in design analysis of broadband, multiband, and smart antennas for wireless applications.

Download or read book Rectenna System Design at L band for Wireless Power Transmission written by Hemant Kumar Gupta and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Modeling Theory and Simulation of Wideband Phased Array for Sensing and Communications written by Ang Chen and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The phased array is a key technology for Millimeter-Wave (mmWave) communication and sensing. The phased array consists of two or more antennas and features beamforming, beam steering, and beam tapering. With beamforming, the radiation pattern of a phased array can be narrowed to a concentrated beam compared to a single antenna. With beam steering, the phased array enables directional communications by controlling the phase difference of the individual antennas. And with beam tapering, the shape of the radiation pattern can be manipulated to suppress the power loss in the unwanted directions by altering the amplitude distribution of the individual antennas. In this thesis, fundamental features and principles of phased array antennas, including the configuration of phased array, array factor, beamforming, beam steering, grating lobes, and beam tapering, are explored and demonstrated using modeling, theoretical derivations, and MATLAB simulations.

Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 974 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy Harvesting written by Apostolos Georgiadis and published by Cambridge University Press. This book was released on 2021-01-21 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: A thorough treatment of energy harvesting technologies, highlighting radio frequency (RF) and hybrid-multiple technology harvesting. The authors explain the principles of solar, thermal, kinetic, and electromagnetic energy harvesting, address design challenges, and describe applications. The volume features an introduction to switched mode power converters and energy storage and summarizes the challenges of different system implementations, from wireless transceivers to backscatter communication systems and ambient backscattering. This practical resource is essential for researchers and graduate students in the field of communications and sensor technology, in addition to practitioners working in these fields.

Download or read book Optical and Wireless Technologies written by Vijay Janyani and published by Springer. This book was released on 2019-04-09 with total page 567 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents selected papers from the 2nd International Conference on Optical and Wireless Technologies, conducted from 10th to 11th February, 2018. It focuses on extending the limits of currently used systems encompassing optical and wireless domains, and explores novel research on wireless and optical techniques and systems, describing practical implementation activities, results and issues. The book will serve as a valuable reference resource for academics and researchers across the globe.

Download or read book Wideband Reflectarray Using Compact Coupled Element and Rectifying Antenna Combined with Reflectarray written by Seong Won Oh and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The reflectarray has been considered as a suitable candidate to replace the conventional parabolic reflectors because of its high-gain, low profile, and beam reconfiguration capability. Narrow bandwidth of the reflectarray is the main obstacle for the various uses of the reflectarray. The wide band element with a large phase variation range and a linear phase response is one of the solutions to increase the narrow bandwidth of the reflectarray. Several elements with a large phase range and a linear response have been developed, but their configurations are complex. Simple methods have been investigated in this dissertation to develop wide band elements. A microstrip ring and slot element with a large phase range is introduced and modified for a better linear response. A coupled element with a linear response has been developed. A method is proposed to design a two-layer reflectarray with multi-resonant elements of various sizes for wideband operation. The element dimensions are adjusted by Particle Swarm Optimization routine to achieve the appropriate phase distribution for a predetermined frequency band. In another approach to increase the operation bands, a six-band reflectarray has been developed. As a new application of a reflectarray, a rectifying reflectarray, which is composed of a rectenna and a reflectarray, is introduced in this dissertation. The reflectarray directs RF energy from its aperture to the rectenna located on the feed point of the reflectarray. This configuration eliminates complex feeding networks and design difficulties of the conventional rectenna array. A Double Sided Parallel Strip Line (DSPSL) is adapted for the feeding network of the Archimedean spiral antenna. The DSPSL operate very well to feed the Archimedean spiral antenna over the bandwidth. The research presented in this dissertation suggests useful techniques for wideband reflectarrays, wireless power transmission, and wideband antenna designs.

Download or read book Digital Technologies and Applications written by Saad Motahhir and published by Springer Nature. This book was released on with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt: