Basic Antenna Modeling: A Hands-On Tutorial is a step-by-step course in modeling with NEC-2, including well over 100 different exercise models with numerous variations. There are many exercises for student entries, with check-tables to confirm the results.
Intermediate Antenna Modeling: A Hands-On Tutorial provides over 450 pages of illustrated text and about 300 exercise models and variants as a means of introducing virtually the entire command sets of both NEC-2 and NEC-4. The self-study course is designed for use in conjunction with advanced software packages. The major division are The Geometry Commands; Far-Field and General Control Commands; and Special Outputs, Control Commands, and Techniques.
Antenna Modeling Notes - Volumes 1 through 7: The long-running series of monthly columns in antenneX as been converted into book form, with 25 columns covered in each of four volumes. Information on sources of modeling programs and program capabilities has been updated. In addition, each volume includes a selection of NEC models in .EZ, .NWP, and .NEC format to permit you to examine the concepts under discussion. Volume 1 (columns 1 - 25), Volume 2 (columns 26-50), Volume 3 (columns 51-75), and Volume 4 (columns 76-100) contain about 400 pages each:
Antennas From the Ground Up: An introduction to antennas and related ideas (with a special focus on wire antennas) for the newer antenna enthusiast, originally appearing as columns for Low Down, but heavily supplemented.
An-Ten-ten-nas: The first 58 episodes of this long-running 10-meter antenna column in 10-10 News is now available in a cooperative venture with 10-10 International.
Antennas and Feedlines for QRP consists of presentations to the annual FDIM symposium at Dayton, with new material added in this cooperative venture with QRP ARCI. Available through the QRP ARCI.
Cubical Quad Notes: Volume 1: A Review of Existing Designs: This first volume reviews many existing designs of both monoband and multi-band quad arrays to assess both the potentials and the limitations of these antennas and their feed systems.
Cubical Quad Notes: Volume 2: Rethinking the Quad Beam: The second volume examines the most fundamental properties that determine quad performance and develops computer design programs for a number of monoband quad beam types, from 1 to 4 elements.
Ground-Plane Notes: This volume explores the subject of ground planes, with primary emphasis upon the modeled behavior of buried radial systems. It examines in detail the concepts of soil conductivity and relative permittivity, as well as providing what NEC-4 modelxs report about a large number of questions, including the number of radials, their length and depth, the effects of monopole height above them. the use of insulated wire, the the effects of frequency. As well, the volume answers a number of modeling questions, from how to set up radial system models to the adequacy of substitutes for buried radials, such as the use of near-ground radial NEC-2 models and the use of a MININEC ground system. In addition, the volume treats elevated radial system for the lower HF, upper HF, and VHF/IHF ranges.
Includes set of model files Ground-Plane-Notes-Models.zip.
Long-Boom Yagi Studies: This large CDROM volume explores many series of long-boom Yagis from 2 to 14 wavelengths, including the classic DL6WU series and others, with a sequence of optimized Yagis in the same range provided by N6BV. The aim is to replace the scattered sampling of specific designs with systematic data from many series of Yagis, element-by-element, to find the data trends. The work covers single units and vertical stacks of 2, spaced either for maximum gain or for the best combination of sidelobe suppression. The volume also includes a 14 wavelength long Yagi with 20-dB sidelobe attenuation for almost the entire 70-cm band. Appendices contain sweep graphs for almost all of the Yagi series, element by element, and 360 EZNEC models used as the basis for data generation.
Long Wire Notes: Long-wire technology may be ancient, but it still has much to teach about the behavior of directional antennas. This volume covers single (straight) long wires, V arrays, and rhombics in both terminated and unterminated forms. The latter forms are among the first traveling-wave and frequency-independent antennas. Although the book makes constant reference to classical references in the field, it uses modern computer antenna modeling software to refresh the analysis, check older design data, and establish some facts about long-wire antennas that lay outside the boundaries of early calculations. The book also provides details and cautions on modeling certain forms of long-wire antennas, especially multi-wire terminated rhombic designs.
Includes set of model files Longwire-Notes-Models.zip.
LPDA Notes - Volume 1: Pure LPDAs: Volume 1 looks at the basic properties of pure log periodic dipole arrays, with special emphasis upon the types of antennas usually created by radio amateurs.
LPDA Notes - Volume 2: Hybrid LPDAs: Volume 2 begins with a detailed analysis of the strengths and weaknesses of various traditional and long-boom designs for the log-cell Yagi. Part 3 explores a number of practical LPDAs, including lower HF vs. UHF designs, narrow-band vs. very wide-band designs, and split-band vs. continuous-band designs.
LPDA Notes - Volume 3: A Potpourri of LPAs: Volume 3 begins with astudy of shorted stubs used with LPDAs with a following exploration of the patterns of element currents. Part 2 examines LPDA predecessors, the 2-bat zigzag LPA to determine its capabilities relative to LPDAs. Part 2 examines the potential of extended aperture LPDAs (EALPDAs, while the last section explores the V-element LPDA and the log-spiral LPA.
Moxon Rectangle Notes: This one-volume effort collects and organizes information on the Moxon rectangle, beginning with the history and principles of the antenna and moving to practical wire and tubular versions for HF, VHF, and UHF. The book includes a complete set of antenna models mentioned in the text, as well as a Moxon rectangle design program (in several formats) developed by the author.
Includes a set of model files: Moxon-Rectangle-Notes-Models.zip.
Planar and Corner Reflector Arrays: Resting on optical rather than parasitic or phased-element principles, planar (flat) and corner reflectors suffer undeserved neglect by a large portion of the amateur community (and others). The planar reflector turns out to have an ideal size based on the size of the driver, which can be simple or complex. Corner reflectors accept fewer driver variations, but are capable of high performance levels, although rod-based and screen-based reflectors have interesting differences. The book includes information of 3-dimensional reflectors as well as on the more standard 2-dimensional corner reflector.
Self Contained Vertical Notes: Nearly a decade has gone by, and I still receive questions about these interesting antennas. Therefore, I decided to return to ground zero and re-formulate the information in those articles and much, much more to create this volume. I have expanded coverage in terms of several factors: the fundamentals upon which SCVs operate, antenna types that fit within the group, frequency coverage, and special applications and opportunities.
Includes a set of model files: SCV-Notes-Models.zip
Some Basics of Multi-Band Beam Design: There is among some amateur radio beam designers a special art: the art, since, and craft of designing multi-band parasitic beams. Sometimes the work of an individual, sometimes the work of a team, designing directional antennas that cover more than one amateur band is not as easy as it may seem on the surface. We cannot simply interlace a collection of monoband beams, since all of the off- band elements will be active, at least at a low level, on all bands. The interactions are sufficient to complicate the process of deriving on all bands adequate gain, respectable front-to-back ratios, clean radiation patterns, and an acceptable feedpoint impedance.
Includes a set of model files: Some-Basics-of-Multi-Band-Beam-Design-Models.zip
Two Element Horizontal Beams Volume 1 - Phased Arrays: If one element is good, then two must be better. This credo underlies most amateur understanding of 2-element (and n-element) arrays. In Volume 1 of this set, we explore the nature and types of 2-element directional and bi-directional phased arrays. We call an array phased when we provide energy directly to each element in the array.
Includes a set of model files: Two-Ele-Horizontal-Beams-Vol-1-Phased-Arrays-Models.zip
Two Element Horizontal Beams Volume 2 - Parasitic Arrays: Feeding a single element creates the most popular form of 2-element array. This longer look results in a completely new volume because there are so many variations on the basic 2 element parasitic scheme. Of course, we call an array parasitic when we feed one element (usually) and allow the other elements to arrive at the conditions for directional service solely by the mutual coupling between elements.
Includes a set of model files: Two-Ele-Horizontal-Beams-Vol-2-Parasitic-Arrays-Models.zip
Two older volumes (written about 1980) are available in .PDF format. One is Seven Steps to Designing Your Own Ham Equipment, and the other is Setting Up and Using Your Own Ham Shack. Although the specific details have changed over the last two decades of rapid electronic evolution, the general principles involved in both enterprises may still prove useful.
Wide-Band Yagi Notes (2 Volumes):
Volume 1, Basic Principles, introduces and reviews the fundamentals of wide-band Yagi design, including classic DL6WU features, OWA principles and special properties, and the principles of adapting a given design to different materials.
Volume 2, Practical Antennas, provides a potpourri of practical (that is buildable) OWA and other wide-band Yagi designs on a band-by-band basis from 10 meters to 70 cm, with a special chapter on 40 meters. Includes antenna models of all antennas mentioned in the text.
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