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Author: Edward J. Shortridge
Publisher: Dog Ear Publishing
ISBN: 1457549018
Category : Technology & Engineering
Languages : en
Pages : 116
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Book Description
Two previous books titled “Super-Dipole” and “Super Max-Dipole” Antennas were written by this author, thereby introducing a completely new “Unified Broad-Banding Method”. This method primarily consists of the use of a 1/2 wavelength Dipole, which is fed with a 1/4 (or shorter) wavelength resonant line. The amount of coupling between these two components is greatly reduced and controlled to produce a wide SWR bandwidth. This Broad-Banding method is referred to as “Critically-Coupled Broad-Banding”. This new book, titled “Super Multi-Band Antennas” is a continuation of the previous book, where Broad-Banding is taken to an extreme and Dual-Band antennas can be configured either on an adjacent band or those that might have a much greater 2 to 1 frequency separation. Early chapters of this book reintroduce the “Unified Broad-Banding Method”, presenting Horizontal antennas with superb SWR bandwidths and then showing Dual-Band versions with many different band combinations from 60m on up to 450 MHz, using either wire or tubing. Single band Folded-Dipole configurations using tubing or Ladder-line/Window-line are shown to produce extremely low SWR bandwidths. Inverted “V” Dual-Band antennas, with many band combinations allow for easier antenna mounting. Both Vertical and Horizontal Single-fed, Dual-Band Quad antennas have a limited bandwidth but when each individual 1/2wL section is fed, these antennas are classified as a “Prismatic Polygon” and thereby achieve far greater bandwidth, achieving it in a totally different manner from the “Critically-Coupled” method. There are many versions of Quad, Triangular, Pentagons and Hexagon Polygon antennas and all of their Multi-radiators must be fed. Some can cover from 30 to 10m, while others can cover from 144 to 450 MHz, allowing all services within the bandwidth, including the Amateur Radio services to use these antennas. This book presents large numbers and a variety of antennas and it also provides a path of the evolution from one type of antenna to another, providing detailed performance. Many thanks again to Eugene Belton and Dale Parfitt for their dedicated hard work, which without; these books would not have been possible. Surely you will be pleased with the extent of information provided, which covers important details.
Author: Edward J. Shortridge
Publisher: Dog Ear Publishing
ISBN: 1457549018
Category : Technology & Engineering
Languages : en
Pages : 116
Get Book Here
Book Description
Two previous books titled “Super-Dipole” and “Super Max-Dipole” Antennas were written by this author, thereby introducing a completely new “Unified Broad-Banding Method”. This method primarily consists of the use of a 1/2 wavelength Dipole, which is fed with a 1/4 (or shorter) wavelength resonant line. The amount of coupling between these two components is greatly reduced and controlled to produce a wide SWR bandwidth. This Broad-Banding method is referred to as “Critically-Coupled Broad-Banding”. This new book, titled “Super Multi-Band Antennas” is a continuation of the previous book, where Broad-Banding is taken to an extreme and Dual-Band antennas can be configured either on an adjacent band or those that might have a much greater 2 to 1 frequency separation. Early chapters of this book reintroduce the “Unified Broad-Banding Method”, presenting Horizontal antennas with superb SWR bandwidths and then showing Dual-Band versions with many different band combinations from 60m on up to 450 MHz, using either wire or tubing. Single band Folded-Dipole configurations using tubing or Ladder-line/Window-line are shown to produce extremely low SWR bandwidths. Inverted “V” Dual-Band antennas, with many band combinations allow for easier antenna mounting. Both Vertical and Horizontal Single-fed, Dual-Band Quad antennas have a limited bandwidth but when each individual 1/2wL section is fed, these antennas are classified as a “Prismatic Polygon” and thereby achieve far greater bandwidth, achieving it in a totally different manner from the “Critically-Coupled” method. There are many versions of Quad, Triangular, Pentagons and Hexagon Polygon antennas and all of their Multi-radiators must be fed. Some can cover from 30 to 10m, while others can cover from 144 to 450 MHz, allowing all services within the bandwidth, including the Amateur Radio services to use these antennas. This book presents large numbers and a variety of antennas and it also provides a path of the evolution from one type of antenna to another, providing detailed performance. Many thanks again to Eugene Belton and Dale Parfitt for their dedicated hard work, which without; these books would not have been possible. Surely you will be pleased with the extent of information provided, which covers important details.
Author: Edward Shortridge
Publisher: Dog Ear Publishing
ISBN: 9781457554766
Category : Technology & Engineering
Languages : en
Pages : 114
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Book Description
Two previous books titled "Super-Dipole" and "Super Max-Dipole" Antennas were written by this author, thereby introducing a completely new "Unified Broad-Banding Method." This method primarily consists of the use of a 1/2 wavelength Dipole, which is fed with a 1/4 (or shorter) wavelength resonant line. The amount of coupling between these two components is greatly reduced and controlled to produce a wide SWR bandwidth. This Broad-Banding method is referred to as "Critically-Coupled Broad-Banding." This new book, titled "Super Multi-Band Antennas" is a continuation of the previous book, where Broad-Banding is taken to an extreme and Dual-Band antennas can be configured either on an adjacent band or those that might have a much greater 2 to 1 frequency separation. Early chapters of this book reintroduce the "Unified Broad-Banding Method," presenting Horizontal antennas with superb SWR bandwidths and then showing Dual-Band versions with many different band combinations from 60m on up to 450 MHz, using either wire or tubing. Single band Folded-Dipole configurations using tubing or Ladder-line/Window-line are shown to produce extremely low SWR bandwidths. Inverted "V" Dual-Band antennas, with many band combinations allow for easier antenna mounting. Both Vertical and Horizontal Single-fed, Dual-Band Quad antennas have a limited bandwidth but when each individual 1/2wL section is fed, these antennas are classified as a "Prismatic Polygon" and thereby achieve far greater bandwidth, achieving it in a totally different manner from the "Critically-Coupled" method. There are many versions of Quad, Triangular, Pentagons and Hexagon Polygon antennas and all of their Multi-radiators must be fed. Some can cover from 30 to 10m, while others can cover from 144 to 450 MHz, allowing all services within the bandwidth, including the Amateur Radio services to use these antennas. This book presents large numbers and a variety of antennas and it also provides a path of the evolution from one type of antenna to another, providing detailed performance. Many thanks again to Eugene Belton and Dale Parfitt for their dedicated hard work, which without; these books would not have been possible. Surely you will be pleased with the extent of information provided, which covers important details.
Author: Edward J. Shortridge
Publisher: Dog Ear Publishing
ISBN: 1457548984
Category : Technology & Engineering
Languages : en
Pages : 208
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Book Description
“Super-Dipole Antennas” is a book that introduces a completely new “Unified Broad-Banding Method”. This method primarily consists of the use of a 1/2 wavelength Dipole, which is fed with a 1/4 (or shorter) wavelength resonant line. The amount of coupling between these two components is greatly reduced and controlled to produce a wide SWR bandwidth. This Broad-Banding Method is referred to as “Critically-Coupled Broad-Banding”. There are many different configurations that are possible and these are presented in a logical sequence, showing how each has evolved from the previous one. Some use “Low Impedance Coupling”, while others utilize “High Impedance” and both can achieve low SWR bandwidths. Most all of the configurations are adaptable to the various radio Amateur bands, from 160m to above the 6m band. Some utilize wire radiators, while others at the higher frequencies, utilize aluminum tubing. Large numbers of antennas are presented covering most all of the wider Amateur radio bands where Broad-Banding is most desirable. The completely new and unique configurations introduced will completely change the perception of how antennas are Matched and Broad-Banded. Many of the configurations are very simple and easy to understand. Most have been reduced in complexity, cost of materials, and can readily be assembled and these are referred to as “Super-Dipole Antennas”. Other methods of Broad-Banding are also presented, which have unique advantages, while some others have Multi-Band capabilities. Almost all of the configurations presented include charts showing how the Far-field gains and coaxial losses vary across each of the bandwidths, giving a good perception of the efficiency on each band. Each antenna configuration has been carefully computer-modeled, making certain that all of the critical requirements are taken into account and checking the consistency of results, thus giving an assurance of good modeling accuracy. This book has been written to purposely keep it simple, point out the pertinent details, make comparisons between different antennas, in the simple straightforward manner, while avoiding any complicated formulas. It is meant to be a tutorial on Broad-Banding, along with the catalog of practical antenna configurations in order to encourage further interest, imagination and experimentation.
Author: David A. Sánchez-Hernández
Publisher: Artech House
ISBN: 1596933984
Category : Technology & Engineering
Languages : en
Pages : 337
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Book Description
The book serves as a comprehensive, one-stop resource, including in-depth coverage of multiband integrated antenna design, simulation, testing and manufacturing. This practical book helps you solve integration problems for ever-increasing multiband requirements. You find discussions on important considerations regarding future handset MIMO terminals, such as efficiency and the effect of the user. The book also shows you how to avoid tweaking for fractal multiband designs and printed dipole design.
Author: Xavier Begaud
Publisher: John Wiley & Sons
ISBN: 1118586573
Category : Technology & Engineering
Languages : en
Pages : 217
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Book Description
Ultra Wide Band Technology (UWB) has reached a level of maturity that allows us to offer wireless links with either high or low data rates. These wireless links are frequently associated with a location capability for which ultimate accuracy varies with the inverse of the frequency bandwidth. Using time or frequency domain waveforms, they are currently the subject of international standards facilitating their commercial implementation. Drawing up a complete state of the art, Ultra Wide Band Antennas is aimed at students, engineers and researchers and presents a summary of internationally recognized studies.
Author: John W. Hill
Publisher: Clear Springs Press
ISBN: 9781884979132
Category : Technology & Engineering
Languages : en
Pages : 152
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Book Description
This is not a book on antenna theory. It does provide clear easily understood explanations on the principles of antenna operation, transmission line considerations, impedance matching, baluns, tuners, and the pros and cons of different types and configurations of wire antennas. This book is written with the intention of enabling a new comer to amateur radio to understand the theory and practical considerations of this subject without getting lost in mathematics and complex theory. Portable, reliable HF communication is required for emergency management, expedition communications and recreational uses. This book is about selecting and constructing portable HF wire antennas that will provide maximum performance with low power, light weight and low bulk. All the information required to assemble antennas and antenna kits that can be deployed in multiple configurations is provided. Special attention is given to wire antennas deployed at low heights above ground, a situation confronted by operators on the move. Special attention is also given to NVIS (Near Vertical Incident Skywave) communications, which is also optimum with low antenna elevation. NVIS propagation enables communications in the 50-500 mile range regardless of terrain and independent of repeaters. With two or three low suspension points (8-20 ft.), one can deploy wire antennas that cover the 160-30 meter bands (those capable of NVIS propagation) with performance optimized for NVIS communication. With a single high suspension point that can be improvised from one or two tall trees, buildings or cliff faces and one of the antenna launch systems described here, one can deploy multiple antenna options that can be configured from the modular antenna kit. These include inverted V resonant or random wire dipoles, long wire antennas, sloper dipoles and inverted L antennas for efficient all-band regional use. It also covers terminated V beam and inverted half rhombic beam antennas optimized for 20-10 meters while being broad band (no tuner required), low noise gain equal to or greater than a high dipole. With two medium to high suspension points (15-80 ft. depending on the band), one can install half square wire antennas that produce high gain low angle radiation that is optimum for DX operation. Dropping one of the wire curtains converts the same antenna into a general coverage multi-band inverted L. With the versatility of the modular antenna components described here, one can quickly assemble, deploy and dis-assemble and roll up high performance wire antennas that are adaptable to nearly any operating environment and communications objective.
Author: Edward J. Shortridge
Publisher: Dog Ear Publishing
ISBN: 145754900X
Category : Technology & Engineering
Languages : en
Pages : 110
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Book Description
A previous book titled “Super-Dipole Antennas”, which was written by this author, introduced a completely new Unified Broad-Banding Method. This method primarily consists of the use of a 1/2 wavelength Dipole, which is fed with a 1/4 (or shorter) wavelength resonant line. The amount of coupling between these two components is greatly reduced and controlled to produce a wide SWR bandwidth. This Broad-Banding method is referred to as “Critically-Coupled Broad-Banding”. This new book, titled “Super Max-Dipole Antennas” is a continuation or addition to the previous book and primarily presents Inverted V and Horizontal antennas in the 75-80 and 160m bands, which are some of the widest HF bands. Early chapters reintroduce the “Unified Broad-Banding Method”, presenting Inverted V antennas, with each of the possible “S” Broad-Banding configurations presented at various antenna heights, with a few newer configurations being presented. A totally different Broad-Banding method, which uses “Dual Inverted V” antennas, which can produce very low SWR bandwidths at all antenna heights, is then presented. Some of these were previously presented but these are new or improved versions. The latter chapters present some completely new Broad-Banding configurations utilizing “Dual Inverted V” radiators, which in itself creates Broad-Banding but by adding one of several “Critical- Coupling” configurations, “Double Broad-Banding” can be achieved. This arrangement can produce SWR bandwidths at or below an SWR of 1.5/1 across the entire bandwidth at any and all antenna heights. This appears to be a notable achievement, not occurring often. These new and unique configurations introduced will completely change the perception of how antennas are matched and Broad-Banded. Many of the configurations are very simple and easy to understand. Most have been reduced in complexity, cost of materials and can readily be assembled and these are referred to as “Super-Dipole Antennas”. Throughout this book configurations presented include charts showing how the Far-field RF gains and coaxial losses vary across each of the bandwidths, giving a good perception of the efficiency on each band. All of the antennas throughout this book have been configured with an efficiency in mind and those antennas that have higher losses are scrutinized rigorously and the true performance specifications are shown, whether they are good or bad.
Author: John M. Vanderau
Publisher:
ISBN:
Category : Law enforcement
Languages : en
Pages : 56
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Book Description
Author: Jackson R. Richter
Publisher:
ISBN: 9781625950994
Category : Antennas (Electronics)
Languages : en
Pages : 123
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Book Description
Dipole Antennas You Can Build! ARRL’s HF Dipole Antennas for Amateur Radio is a collection of 20 HF dipole antenna designs published in QST, ARRL’s membership journal, between 2000 and 2017. It includes innovative antenna projects for single- and multiband antennas, as well as antennas for portable applications..
Author: Mohammad Abdul Matin
Publisher: Springer Nature
ISBN: 303074311X
Category : Technology & Engineering
Languages : en
Pages : 448
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Book Description
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.
