Download or read book Design of a UWB Coplanar Fed Antenna and Circular Miniature Printed Antenna for Medical Applications written by Adnane Latif and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Breast cancer is the second deadly cancer for women; for more efficiency and an early detection, the biomedical field need new systems that should be safe, comfortable, and sensible. The medical field already has its methods to detect breast cancer. In this chapter, a new ultra-wide band (UWB) planar antenna is presented for microwave imaging, the antenna is designed to operate in a frequency band from 2.9-10.8GHz. The antenna was designed to be adaptable for multi-viewing imaging due to it simple form, low cost and ease to be manufactured. The simulation results of the new ultra large band antenna and a performance comparison with other UWB antennas. We also offer a circular miniature printed antenna that satisfies the UWB characteristics in terms of bandwidth and reflection coefficient. This antenna is intended for a system for detecting malignant tumors by microwave imaging. The antenna made has a patch on a FR-4 type substrate with Œμr = 4,3, thickness h =1.575 mm and dimensions ls = 25 mm, and ws = 25 mm. A rectangular slot is inserted on the radiating element ensuring its miniaturization. The latter is powered by a microstrip line width wm with matching impedance at 50 Ohm.

Download or read book Advanced Radio Frequency Antennas for Modern Communication and Medical Systems written by Albert Sabban and published by BoD – Books on Demand. This book was released on 2020-09-23 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main objective of this book is to present novel radio frequency (RF) antennas for 5G, IOT, and medical applications. The book is divided into four sections that present the main topics of radio frequency antennas. The rapid growth in development of cellular wireless communication systems over the last twenty years has resulted in most of world population owning smartphones, smart watches, I-pads, and other RF communication devices. Efficient compact wideband antennas are crucial in RF communication devices. This book presents information on planar antennas, cavity antennas, Vivaldi antennas, phased arrays, MIMO antennas, beamforming phased array reconfigurable Pabry-Perot cavity antennas, and time modulated linear array.

Download or read book Design and Fabrication of Ultra Wideband UWB Coplanar Waveguide CPW FED Circular Slot Antenna for UWB Applications written by Mohd Norsyafiq Nordin and published by . This book was released on 2009 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Printed Antennas written by Praveen Kumar Malik and published by CRC Press. This book was released on 2022-12-15 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection covers different printed microstrip antenna designs,from rectangular to circular, broadband, dual-band, and millimeter-wave microstrip antennas to microstrip arrays. It further presents a new analysis of the rectangular and circular microstrip antenna efficiency and surface wave phenomena. The book Covers the latest advances and applications of microstrip antennas Discusses methods and techniques used for the enhancement of the performance parameters of the microstrip antenna Presents low-power wide area network (LPWAN) proximity-coupled antenna for Internet of Things applications. Highlights a new analysis of rectangular and circular microstrip antenna efficiency and surface wave phenomena. Showcases implantable antennas, H-shaped antennas, and wideband implantable antennas for biomedical applications Printed Antennas discusses the latest advances such as the Internet of Things for antenna applications, device-to-device communication, satellite communication, and wearable textile antenna in the field of communication. It further presents methods and techniques used for the enhancement of the performance parameters of the microstrip antenna and covers the design of conformal and miniaturized antenna structures for various applications. It will serve as an ideal reference text for senior undergraduates, graduate students, and researchers in fields including electrical engineering, electronics and communications engineering, and computer engineering.

Download or read book Printed Antennas for Future Generation Wireless Communication and Healthcare written by Balaka Biswas and published by CRC Press. This book was released on 2023-05-16 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proposed book focuses on the design and development of printed antennas along with modeling aspects for multifaceted applications. It further investigates imperfections in the manufacturing processes and assembly operation during the testing/characterization of printed antennas. This text- Discusses in a comprehensive manner the design and development aspects of printed antennas. Provides fractal engineering aspects for miniaturization and wideband characteristics of the low-profile antenna with high performances. Covers high gain printed antenna for Terahertz application. Showcases electrical modeling of smart antennas. Pedagogical features such as review questions based on practical experiences are included at the end of each chapter. The book comprehensively discusses fractal engineering in printed antennas for miniaturization and enhancement of performance factors. It further covers the modeling of electrically small antennas, circuit modeling, modeling of factual-based Ultra-Wide Band antennas, and modeling of reconfigurable micro-electromechanical system-based patch antennas. The book highlights performance metrics of multiple-input-multiple-output antennas. It will serve as an ideal reference text for senior undergraduate, graduate students, and academic researchers in fields including electrical engineering, electronics, communications engineering, and computer engineering.

Download or read book Ultra wideband Antenna in Coplanar Technology written by Hung-Jui Lam and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultra-wideband (UWB) antennas are one of the most important elements for UWB systems. With the release of the 3.1 - 10.6 GHz band, applications for short-range and high-bandwidth handheld devices are primary research areas in UWB systems. Therefore, the realization of UWB antennas in printed-circuit technologies within relatively small substrate areas is of primary importance. This thesis focuses on the design of a new UWB antenna based on coplanar technology. Compared with microstrip circuitry, coplanar technology achieves easier fabrication and wider antenna bandwidth. Two professional full-wave field solver software packages, HFSS and MEFiSTo-3D, are used as analysis tools to obtain antenna performances. A new printed-circuit antenna in coplanar technology for UWB systems is introduced. The frequency of operation is 3.1 GHz to 10.6 GHz with a VSWR

Download or read book Ultra Wideband Antennas written by Giselle M. Galvan-Tejada and published by CRC Press. This book was released on 2017-12-19 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultra Wideband Antennas: Design, Methodologies, and Performance presents the current state of the art of ultra wideband (UWB) antennas, from theory specific for these radiators to guidelines for the design of omnidirectional and directional UWB antennas. Offering a comprehensive overview of the latest UWB antenna research and development, this book: Discusses the developed theory for UWB antennas in frequency and time domains Delivers a brief exposition of numerical methods for electromagnetics oriented to antennas Describes solid-planar equivalence, which allows flat structures to be implemented instead of volumetric antennas Examines the impedance matching, phase linearity, and radiation patterns as design objectives for omnidirectional and directional antennas Addresses the time domain signal analysis for UWB antennas, from which the distortion phenomenon can be modeled Includes illustrative examples, design equations, CST MICROWAVE STUDIO® simulations, and MATLAB® plot generations Compares the performance of different UWB antennas, supplying useful insight into particular tendencies and unresolved problems Ultra Wideband Antennas: Design, Methodologies, and Performance provides a valuable reference for the scientific community, as UWB antennas have a variety of applications in body area networks, radar, imaging, spectrum monitoring, electronic warfare, wireless sensor networks, and more.

Download or read book Ultrawideband Antennas written by Daniel Valderas and published by World Scientific. This book was released on 2011 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrawideband (UWB) technology, positioned as the cutting edge of research and development, paves the way to meet the emerging demands set by broadband wireless applications, such as high-speed data transmission, medical imaging, short-range radars, electromagnetic testing, etc. This breathtaking resource builds upon the basics of UWB technology to provide a complete compilation of figures of merit along with a vital state-of-the-art of the different antenna alternatives that are to be employed according to the specific application. Without excessive recourse to mathematics, this volume emphasizes on the UWB antenna design and equips readers with practical prediction techniques based on simple formulas and models. The big picture of UWB antenna technology would not be complete without addressing its applications, and this will serve to provide consultants with key clues for slot market searching. Containing over 150 supporting illustrations and figures, this comprehensive overview of UWB technology, antenna design and applications is a vital source of information and reference for R&D organizations, researchers, practitioners, consultants, RF professionals and communication engineers.

Download or read book Broadband Planar Antennas written by Zhi Ning Chen and published by John Wiley & Sons. This book was released on 2006-05-01 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increasing demand for wireless communications has revolutionised the lifestyle of today’s society and one of the key components of wireless technology is antenna design. Broadband planar antennas are the newest generation of antennas boasting the attractive features required, such as broad operating bandwidth, low profile, light weight, low cost and ease of integration into arrays or Radio Frequency (RF) circuits, to make them ideal components of modern communications systems. Research into small and broadband antennas has been spurred by the rapid development of portable wireless communication devices such as cell phones, laptops and personal digital assistants. This all-encompassing volume, Broadband Planar Antennas: Design and Applications, systematically describes the techniques for all planar antennas from microstrip patch antennas, suspended plate antennas and planar inverted-L/F antennas to planar dipole antennas. Also discussed are some of the most recent outcomes such as broadband antenna issues in promising ultra-wideband applications. Clearly describes the fundamentals of planar antennas and categorises them according to their radiation characteristics Introduces the advanced progress in broadband planar antennas for modern wireless communications Includes a wealth of case studies, design guidelines, figures and tables This text is essential reading for antenna, RF and microwave engineers and manufacturers within the telecommunications industry. Its highly accessible approach will also appeal to researchers, postgraduate students and academic lecturers.

Download or read book Ultra wideband Antenna in Coplanar Technology written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultra-wideband (UWB) antennas are one of the most important elements for UWB systems. With the release of the 3.1 - 10.6 GHz band, applications for short-range and high-bandwidth handheld devices are primary research areas in UWB systems. Therefore, the realization of UWB antennas in printed-circuit technologies within relatively small substrate areas is of primary importance. This thesis focuses on the design of a new UWB antenna based on coplanar technology. Compared with microstrip circuitry, coplanar technology achieves easier fabrication and wider antenna bandwidth. Two professional full-wave field solver software packages, HFSS and MEFiSTo-3D, are used as analysis tools to obtain antenna performances. A new printed-circuit antenna in coplanar technology for UWB systems is introduced. The frequency of operation is 3.1 GHz to 10.6 GHz with a VSWR

Download or read book Microstrip and Printed Antennas Applications Based Designs written by Anil Pandey and published by Artech House. This book was released on 2019-03-31 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive resource presents antenna fundamentals balanced with the design of printed antennas. Over 70 antenna projects, along with design dimensions, design flows and antenna performance results are discussed, including antennas for wireless communication, 5G antennas and beamforming. Examples of smartphone antennas, MIMO antennas, aerospace and satellite remote sensing array antennas, automotive antennas and radar systems and many more printed antennas for various applications are also included. These projects include design dimensions and parameters that incorporate the various techniques used by industries and academia. This book is intended to serve as a practical microstrip and printed antenna design guide to cover various real-world applications. All Antenna projects discussed in this book are designed, analyzed and simulated using full-wave electromagnetic solvers. Based on several years of the author’s research in antenna design and development for RF and microwave applications, this book offers an in-depth coverage of practical printed antenna design methodology for modern applications.

Download or read book Design of Printed Antenna Fed by Coplanar Waveguide with Backing Plate written by 呂彥儒 and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Coplanar Waveguide UWB Antenna With Notch Filter written by Qianqian Wang and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to the release of 3.1-10.6 GHz band, UWB systems have a rapidly progressive development. They have been widely employed in short-range communication applications and large-bandwidth handheld devices. As part of the system, the UWB antenna plays an extremely important role. Due to the trend towards integrated printed circuits, co-planar waveguide technology is a feasible solution for designing the UWB antenna.This thesis focuses on designing a UWB co-planar waveguide antenna with a band-stop filter. This band-stop filter offers rejection to unwanted frequencies in the range of the operating band in order to avoid unnecessary interference from other communication applications and improve its own system's performance. In addition, it can divide the whole wide band into a few sub-bands. This will create more flexibility for practical applications.The professional full-wave field solver software package CST Microwave Studio is used as the analysis tool to obtain the performances of this antenna. It operates from 3.1 GHz to 10.6 GHz with a VSWR 2 in the pass bands, and a VSWR 2 in the stop bands. The selected frequencies demonstrate nearly omni-directional characteristics in radiation patterns. Comparing with other published UWB antenna designs, relatively reasonable group delay results are achieved. Measurements on a fabricated prototype validate the design approach.

Download or read book Novel Ultra Wideband Antennas for Wireless Systems written by Abdallah A. Alshehri and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis focuses on Ultra Wideband (UWB) antenna designs and analysis. Studies have been undertaken covering the areas of UWB fundamentals and antenna theory. UWB wireless technology is being considered as the solution to overcome data rate bottlenecks in the wireless communications and applications. UWB is able to achieve high data transmission rates because it transmits data over a very large spectrum of frequencies from 3.1 GHz to 10.6 GHz (7.5 GHz). Consequently, it provides many challenges for design in the communications arena, including antenna design. The main objective of this thesis is to study, design, analyze and implement novel UWB low profile printed patch antennas that satisfy UWB technology requirements. Several techniques are used for optimal UWB bandwidth performance of the UWB antenna designs in this thesis. The undertaken thesis focuses on planar antennas printed on PCBs. Therefore, this research introduces novel five designs of microstrip-fed, small, low-profile, printed microstrip UWB antennas using different bandwidth-enhancement techniques to satisfy UWB bandwidth. According to their geometrical shapes, they can be classified into two types: the first types are stepped UWB antennas which are namely: a stepped-trapezoidal patch antenna and a trimmed notch-cut patch antenna. The second ones are beveled UWB antennas which are namely: an elliptical patch antenna, a double-beveled patch antenna, and a band-rejected elliptical patch antenna. It has been demonstrated numerically and experimentally that the proposed antennas are suitable for UWB systems. They can provide satisfactory frequency domain performance, including ultra-wide bandwidth with nearly omni-directional radiation patterns, relatively flat gain and very good radiation efficiency. These features make them very suitable for UWB communications and applications, such as wireless personal area networks (WPANs) applications.

Download or read book Design of Uwb and Multiple Band Monopole Antennas for Body Centric Wireless Communications written by Yiye Sun and published by Open Dissertation Press. This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Design of UWB and Multiple-band Monopole Antennas for Body-centric Wireless Communications" by Yiye, Sun, 孫憶業, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: This thesis presents the designs of Ultra-wideband (UWB) monopole antennas, textile monopole antennas and transparent UWB textile antennas using planar technology for body-centric wireless communications (BCWC). A planar antenna designed using offset-fed and slotted ground plane to extend the operating bandwidth for the industrial, scientific and medical (ISM)band and UWB is proposed. Results show that the antenna can achieve a bandwidth from 2.38 to 14.5 GHz with omni-directional radiation patterns in the E-plane. Agroup of nine planar UWB monopole antennas using different radiator shapes such as triangle, rectangle, square, annual ring, circle, horizontal ellipse, vertical ellipse, pentagon and hexagon for BCWC is studied using computer simulation and measurement. Results show that the monopole antenna having a vertical-elliptical-shape radiator has a relatively better performance than other monopole antennas. Three textile antennas fabricated on fabric materials are studied. The first design is a triple-band textile antenna for wireless-local-area network (WLAN) and worldwide interoperability for microwave access (WiMAX) wireless communication applications. The radiator is composed of two branches and a short stub to generate the resonances at about 2.45, 3.5 and 5.5 GHz, respectively. Simulated and measured results show that the three frequency bands can be set independently. The second design is an UWB antenna consisting of a circular radiator, a tapered feed line and a slotted ground plane. Results show that the antenna can achieve a bandwidth of 3 to 12 GHz. The third design is a compact belt-loop UWB antenna with microstrip-fed. The antenna has a simple elliptical-shaped radiator, a three-step staircase on both sides of the feed line and a slot on the ground plane. It has a very compactsize of 1140=440 mm2and can still achieve a bandwidth of 3.1 to 12.8 GHz. To emulate the on-body conditions, the two UWB antennas are studied in the bending and crumpling conditions due to the curvature of human body. Results show that both UWB textile antennas have quite stable performances throughout the UWB band. The two UWB textile antennas are re-designed using a transparent conductive film (TCF)as the radiator and ground plane on fabric substrate. Results show that the measured reflection coefficients of transparent antennas agree well with the simulated results. However, the measured radiation patterns have large discrepancies with the simulated results, which are mainly due to the uncertain electric properties of TCF in radio frequency. Results show that the antennas have a better performance, in terms ofbandwidth, peak gain and radiation efficiency, than those of other transparent antennas studied before, making our proposed antennas suitable for body-centric wireless communications. DOI: 10.5353/th_b5334879 Subjects: Ultra-wideband antennas Human-computer interaction Wireless communication systems - Equipment and supplies - Design and construction

Download or read book Ultra Wideband Communications written by Mohammad Abdul Matin and published by BoD – Books on Demand. This book was released on 2011-08-09 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores both the state-of-the-art and the latest achievements in UWB antennas and propagation. It has taken a theoretical and experimental approach to some extent, which is more useful to the reader. The book highlights the unique design issues which put the reader in good pace to be able to understand more advanced research.

Download or read book Advances in Microwave Engineering written by Ankan Bhattacharya and published by CRC Press. This book was released on 2023-11-21 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text showcases recent advancements in the field of microwave engineering, starting from the use of innovative materials to the latest microwave applications. It also highlights safety guidelines for exposure to microwave and radio frequency energy. The book provides information on measuring circuit parameters and dielectric parameters. Explains microwave antennas, microwave communication, microwave propagation, microwave devices, and circuits in detail Covers microwave measurement techniques, radiation hazards, space communication, and safety measures Focuses on advanced computing technologies, wireless communication, and fiber optics Presents scattering matrix and microwave passive components and devices such as phase shifters and power dividers Showcases the importance of space communication, radio astronomy, microwave material processing, and advanced computing technologies The text provides a comprehensive study of the foundations of microwave heating and its interactions with materials for various applications. It also addresses applications of microwave devices and technologies in diverse areas, including computational electromagnetics, remote sensing, transmission lines, radiation hazards, and safety measures. It emphasizes the impact of resonances on microwave power absorption and the effect of nonuniformity on heating rates. The text is primarily written for senior undergraduate students, graduate students, and academic researchers in the fields of electrical engineering, electronics and communication engineering, computer engineering, and materials science.