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Investigation Of A Novel Aperture Coupled Rectangular Dielectric Resonator Antenna Array
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Book Synopsis Investigation of a Novel Aperture-coupled Rectangular Dielectric Resonator Antenna Array by : Gregory David Loos
Download or read book Investigation of a Novel Aperture-coupled Rectangular Dielectric Resonator Antenna Array written by Gregory David Loos and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rectangular Dielectric Resonator Antennas by : Rajveer S. Yaduvanshi
Download or read book Rectangular Dielectric Resonator Antennas written by Rajveer S. Yaduvanshi and published by Springer. This book was released on 2015-09-24 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers resonating modes inside device and gives insights into antenna design, impedance and radiation patterns. It discusses how higher-order modes generation and control impact bandwidth and antenna gain. The text covers new approaches in antenna design by investigation hybrid modes, H_Z and E_Z fields available simultaneously, and analysis and modelling on modes with practical applications in antenna design. The book will be prove useful to students, researchers and professionals alike.
Book Synopsis Investigation on Aperture Coupled Pentagon Shape Dielectric Resonator Antennas and Arrays with Wideband and Multiband Responses for Wireless Communications by : Manveer Kaur Brar
Download or read book Investigation on Aperture Coupled Pentagon Shape Dielectric Resonator Antennas and Arrays with Wideband and Multiband Responses for Wireless Communications written by Manveer Kaur Brar and published by . This book was released on 2011 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dielectric resonator antennas (DRAs) have several advantages like high efficiency, compact size and ease of integration which makes them more popular as an antenna. In this thesis, the aperture-coupled regular and irregular pentagon shaped dielectric resonator antennas (DRAs) are presented providing wideband and multiband performances. The regular and irregular pentagon shape DRAs show wideband impedance matching (S11 = - 10dB) bandwidth of 42% (from 2.55 GHz to 3.9GHz) and 45.8% (from 2.57 GHz to 4.1GHz), respectively. Further, the irregular pentagon shape DRA also shows triple bands: 2.42GHz-2.61GHz (Band1), 3.15GHz-4.05GHz (Band2) and 5GHz-5.65GHz (Band3) with a percentage matching bandwidths of 7.55%, 23.77% and 12.2%, respectively. These DRAs offer acceptable directional radiation patterns for both wideband and multiband performances. Prototype of the regular pentagon shape DRA has been fabricated and experimentally verified for both the matching bandwidth and radiation performance. The simulated and measured results are in very good agreement. These DRAs can find applications in wireless communications devices such as base stations. The 1x2 and 1x4 linear array configurations of the wideband pentagon DRA was also investigated. The 1x2 array was studied for determining the inter-element spacing and mutual coupling between the elements. Next, 1x4 linear array was investigated for the phased array applications showing beam scan in the range of ±60° while maintaining the wideband matching response. Finally, this study was extended to achieve a fixed broadside beam by implementing corporate feed network.
Book Synopsis Dielectric Resonator Antennas by : Kwai Man Luk
Download or read book Dielectric Resonator Antennas written by Kwai Man Luk and published by Research Studies Press Limited. This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of dielectric resonator as a resonant antenna was proposed in 1983. Due to the absence of metallic loss, the dielectric resonator antenna (DRA) is highly efficient when operated at millimetre wave frequencies. With the use of high dielectric constant material, the DRA can also be used as a small and low profile antenna operated at low microwave frequencies. Low cost dielectric materials are now easily available commercially, encouraging more antenna engineers to design communication systems with DRAs.
Book Synopsis Dielectric Resonator Antenna Handbook by : Aldo Petosa
Download or read book Dielectric Resonator Antenna Handbook written by Aldo Petosa and published by Artech House Publishers. This book was released on 2007 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today, more and more antenna engineers are viewing the Dielectric Resonator Antenna (DRA) as a preferable alternative to conventional low-gain designs because of several attractive features, including high radiation, light weight, small size and low profile. This practical resource presents complete, up-to-date details on DRAs in a single volume. The book provides professionals with clear guidance on the mode of operation and radiation behavior of DRAs, the main methods of excitation, and the major advances in DRA technology. This hands-on reference equips engineers with simple equations and graphs that help them rapidly design DRAs, without the need for complex analytical or numerical calculations. Numerous design examples are included to give practitioners a sense of the versatility that DRAs afford.
Book Synopsis Investigation of Rectangular Dielectric Resonator Antenna Elements and Arrays by :
Download or read book Investigation of Rectangular Dielectric Resonator Antenna Elements and Arrays written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Michael Cooper Publisher :National Library of Canada = Bibliothèque nationale du Canada ISBN 13 :9780612269903 Total Pages :288 pages Book Rating :4.2/5 (699 download)
Book Synopsis Investigation of Current and Novel Rectangular Dielectric Resonator Antennas for Broadband Applications at L-band Frequencies [microform] by : Michael Cooper
Download or read book Investigation of Current and Novel Rectangular Dielectric Resonator Antennas for Broadband Applications at L-band Frequencies [microform] written by Michael Cooper and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 1997 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of Current and Novel Rectangular Dielectric Resonator Antennas for Broadband Applications at L-band Frequencies by :
Download or read book Investigation of Current and Novel Rectangular Dielectric Resonator Antennas for Broadband Applications at L-band Frequencies written by and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characteristic Modes by : Yikai Chen
Download or read book Characteristic Modes written by Yikai Chen and published by John Wiley & Sons. This book was released on 2015-05-19 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes how to systematically implement various characteristic mode (CM) theories into designs of practical antenna systems This book examines both theoretical developments of characteristic modes (CMs) and practical developments of CM-based methodologies for a variety of critical antenna designs. The book is divided into six chapters. Chapter 1 provides an introduction and discusses the recent advances of the CM theory and its applications in antenna engineering. Chapter 2 describes the formulation of the characteristic mode theory for perfectly electrically conducting (PEC) bodies and discusses its numerical implementations. Chapter 3 presents the CM theory for PEC structures embedded in multilayered medium and its applications. Chapter 4 covers recent advances in CM theory for dielectric bodies and also their applications. Chapter 5 discusses the CM theory for N-port networks and its applications to the design of antenna arrays. Finally, Chapter 6 discusses the design of platform-integrated antenna systems using characteristic modes. This book features the following: Introduces characteristic mode theories for various electromagnetic structures including PEC bodies, structures in multilayered medium, dielectric bodies, and N-port networks Examines CM applications in electrically small antennas, microstrip patch antennas, dielectric resonator antennas, multiport antennas, antenna arrays, and platform mounted antenna systems Discusses numerical algorithms for the implementation of the characteristic mode theories in computer code Characteristic Modes: Theory and Applications in Antenna Engineering will help antenna researchers, engineers, and students find new solutions for their antenna design challenges.
Book Synopsis Multifunctional Ultrawideband Antennas by : Chinmoy Saha
Download or read book Multifunctional Ultrawideband Antennas written by Chinmoy Saha and published by CRC Press. This book was released on 2019-03-19 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multifunctional Antennas (MFA) are comparatively a new area for antenna research and finds applications in various modern wireless radios, like Cognitive Radio (CR) in Software Defined Radio (SDR) technology and MIMO technology. This book is first attempt and an invaluable resource which deals with the design and realization of various kinds of multifunctional antennas. After clearly explaining the exclusive features of MFAs, the book presents various designs of such antennas considering versatile modern and upcoming applications. Written by three internationally known researchers, Multi-Functional Ultra Wideband Antennas: Trends, Techniques and Applications: Provides a lucid introduction on UWB systems, historical perspective and discusses various applications of such systems Discusses fundamentals of antennas and its characterization in time and frequency domains, primarily aimed for the beginners in the area Revisits the design and realization of various classical UWB antennas Discusses various techniques of designing frequency-notched UWB antennas and provide detailed comparison of the techniques Deals with the techniques of deriving multiple antenna functionalities from a single antenna Incorporates exclusive discussions on modern reconfigurable antennas and printed and dielectric resonator based MIMO antennas with clear focus on recent and upcoming technological requirements With Multi-Functional Ultra Wideband Antennas: Trends, Techniques and Applications, antenna engineers, communication system engineers, graduate students, academic/industry researchers will gain a thorough knowledge on design of such antennas with clear physical insight and understanding. Chinmoy Saha, PHD, is an associate Professor in the Department of Avionics at Indian Institute of Space Science and Technology, Thiruvananthapuram, Kerala, India. His current research interest includes Microwave Circuits, Engineered Materials, Metamaterial Inspired Antennas and Circuits, reconfigurable and multi-functional antennas for modern wireless applications, Dielectric Resonator antennas, THz antennas and wireless power transfer. He is the author or coauthor of several books, scientific journals and recipient of several prestigious awards. Jawad Yaseen Siddiqui, PHD, is an associate Professor in the Department of Radio Physics and Electronics at University of Calcutta, Kolkata, India. His current research interest includes ultra-wideband antennas, frequency reconfigurable antennas, tapered slot antennas and multi-functional antennas for cognitive radio application. He is the author or coauthor of several books, scientific journals and recipient of prestigious awards. He is a Co-Principal Investigator on Stratosphere Troposphere (ST) Radar Project at the University of Calcutta, Kolkata, India. Yahia M.M. Antar, PHD, is a Professor in the Department of Department of Electrical and Computer Engineering at the Royal Military College of Canada, Kingston, ON, Canada. He is the author or coauthor of several books, scientific journals and recipient of prestigious awards which includes IEEE-Antennas and Propagation Society prestigious Chen-To-Tai Distinguished Educator Award for 2017, 2015 IEEE Canada J. M. Ham outstanding Engineering Education Award, 2014 IEEE Canada RA Fessenden Silver Medal, 2012 Queen’s Diamond Jubilee Medal from the Governor General of Canada and many more.
Book Synopsis Modelling and Analysis of Aperture Coupled Cylindrical Dielectric Resonator Antennas by : Mhamed Chabi
Download or read book Modelling and Analysis of Aperture Coupled Cylindrical Dielectric Resonator Antennas written by Mhamed Chabi and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mutual Coupling Between Rectangular Dielectric Resonator Antenna Elements by : Defence Research Establishment Ottawa
Download or read book Mutual Coupling Between Rectangular Dielectric Resonator Antenna Elements written by Defence Research Establishment Ottawa and published by . This book was released on 1998 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dielectric resonator antennas (DRAs) have been suggested as a potentially efficient antenna for use in Personal Communication Systems, Global Positioning Systems and wireless computer networks. They offer several advantages, such as high efficiency, large bandwidth, low profile, small size, ease of fabrication, and low production cost. This paper examines characteristics of the rectangular DRA, both as individual radiating elements as well as elements in array environments. Numerical methods are used to obtain detailed information with respect to the resonant frequency, bandwidth, scattering parameters, input impedance, field structures and radiation patterns on which DRA design is based. This obtained information is then used to help in understanding and quantizing the interaction between elements in close proximity, i.e. mutual coupling. This coupling analysis provides important information for the array design process, as well as the necessary information required to positively exploit these coupling characteristics. The simulation software provides data that very closely matches both experimentation and the theoretical models. Mutual coupling measurements indicate that, beyond a spacing of one half-wavelength, there is very little mutual interaction. This mutual coupling was exploited at lesser distances however with parasitically coupled dielectric elements used to create novel single feed multi-element antennas with altered resonant frequencies, increased bandwidth and enhanced radiation patterns, as compared to a single element.
Book Synopsis Investigations on Wideband Aperture-coupled Microstrip Patch Antennas and Arrays Employing Space Dielectric Covers for Enhanced Gain Performance by : Christopher J. Meagher
Download or read book Investigations on Wideband Aperture-coupled Microstrip Patch Antennas and Arrays Employing Space Dielectric Covers for Enhanced Gain Performance written by Christopher J. Meagher and published by . This book was released on 2009 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rectangular Dielectric Resonator Antennas Fed by Dielectric Image Guide by : Asem S. Al-Zoubi
Download or read book Rectangular Dielectric Resonator Antennas Fed by Dielectric Image Guide written by Asem S. Al-Zoubi and published by . This book was released on 2008 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: A linear array of rectangular dielectric resonator antenna (DRA) is studied. The array is excited by a dielectric image guide. The advantages of using the dielectric image guide (DIG) are the low losses at high frequencies, and wideband performance. Two different methods of coupling between the dielectric resonator elements and the image guide are investigated. The first method of coupling is to couple the image guide to narrow apertures (slots) that are in turn exciting the dielectric resonator elements. Two problems are found in this design. First, this design causes high return losses around the slot resonances. This problem is resolved by adding a reflection cancelling slot near each main slot. The second problem is the high back radiation. This problem is resolved also by using a conducting reflector on the DIG feeding side of the antenna. The second method of excitation is the proximity coupling method between the dielectric resonator antennas and the DIG. Coupling analysis and design of single element and two different arrays are performed. It is found that this design achieve low back radiation, but high cross polarization. The cross polarization is reduced by suppressing some high order modes that are excited in the DRA elements. This suppression of these modes is performed by wrapping the middle of each DRA by a conducting strip. The coupling between the DRA and the DIG is controlled by the separation distance between them. A Dolph-Chebyshev amplitude distribution is used to control the sidelobe level of the far field radiation patterns. A prototype was build for each design from a 7-element array. The measured and computed results are in good agreement. Two 15-elemet arrays are studied numerically and show that to improve the antenna efficiency, and a reasonable number of elements must be used to couple most of the input power to the radiating elements.
Book Synopsis Dielectric Resonator Antennas by : Biswajeet Mukherjee
Download or read book Dielectric Resonator Antennas written by Biswajeet Mukherjee and published by Artech House. This book was released on 2021-11-30 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the understanding of the Cylindrical Dielectric Resonator Antennas (CDRA). The book introduces the fundamentals of DRA, CDRA, identifying the modes in a CDRA, excitation techniques and recent advancements pertaining to the research of the CDRAs. The latest trends in the field are discussed, including wide bandwidth of operation, high gain, modal stability, mode and impedance matching techniques, Circularly Polarized CDRAs, beam forming and MIMO applications for modern wireless systems. The experimental validation, testing, fabrication methods and machining to achieve cylindrical and its reformed shapes are also presented.
Book Synopsis Waveguide and Metaguide Excitation of Dielectric Resonator Antenna Arrays Using Slots and Probes by : Islam A. Eshrah
Download or read book Waveguide and Metaguide Excitation of Dielectric Resonator Antenna Arrays Using Slots and Probes written by Islam A. Eshrah and published by . This book was released on 2005 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this work is to study the excitation of dielectric resonator antennas using rectangular waveguide slots and probes. Thus, the advantages of waveguides as feeding structures having low losses at high frequencies and the inherent wideband nature of dielectric resonator antennas are combined, which increases the system efficiency in the microwave range.
Book Synopsis Design of a Wideband Aperture Coupled Dielectric Resonator Antenna by : Chai Fu Guan
Download or read book Design of a Wideband Aperture Coupled Dielectric Resonator Antenna written by Chai Fu Guan and published by . This book was released on 2012 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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