Practical Antennas - A 6-Book Series
By M.H. De Canck, ON5AU

Marcel has a vast knowledge about antennas!!

Volume 1
285 Pages Plus Illustrations
and Demos!
Volume 2
303 Pages Plus Illustrations
and Demos!
Volume 3
246 Pages Plus Illustrations
and Demos!
Volume 4
215 Pages Plus Illustrations
and Demos!
Volume 5
270 Pages Plus Illustrations
and Demos!
Volume 6
239 Pages Plus Illustrations
and Demos!

Including Animated Demonstrators


rom the start of my radio amateur hobby in 1961, I was interested in antennas and antenna construction. Practically all of the antennas I used till today are homebuilt. Among the antennas I constructed and installed are: multiband and single-band dipoles, off-center fed dipoles, verticals and ground planes, quads, delta loops and Yagis. Most of them were constructed with wire only and all performed as expected and desired. For those simple wire antennas, one doesn’t have to be a professional handyman and they can be done with low cost and simple materials often found in the junkbox or at hamfests.

In those early years of the hobby, the only way I could design antennas was using the formulas as described in magazines and handbooks. Today with the entrance of the computer into the radio shack, use of special software makes it a lot easier. Antenna modeling programs are now available at low cost and have multiple tools to compute and display the modeled antenna properties as: gain, feedpoint SWR and radiation patterns.

Practically from the first release of Elnec and Eznec from the author W7EL, Roy W. Lewallen, I started modeling antennas and built several according to the modeled measurements. I must admit the computer-aided theoretical dimensions compared well to the real live dimensions. When and if there was a significant disparity, the reason was usually that the antenna was rather close to the ground (in fractions of wavelength) or nearby object influences.

More than often I modeled and computed antennas for local club members and often they were very pleased and satisfied with the final results. For more than 15 years I have also used an MFJ-269 antenna analyzer and this is the best piece of equipment I ever purchased. This analyzer easily gave me all I wanted to know about the antenna feedpoint parameters. Adjusting or trimming the antenna to the desired resonant frequency using that tool makes a much easier task than doing all the necessary measurements and tests with just the transmitter and the SWR meter. For those who like to build and experiment with antennas I fully recommend the purchase of such an antenna analyzer.

Volume 1 is about antenna fundamentals and why and how an antenna radiates. The antennas discussed are mostly dipoles or resembling such and horizontally polarized. Vertically polarized antenna properties is only slightly mentioned by means of a vertically installed dipole.

Within Volume 2, vertically polarized antennas are highlighted and how they perform with their various radiating properties. Included are the various loop antennas which can be either easily horizontal or vertical polarized. What are the advantages or disadvantages of antennas differently polarized? Discover what and how they perform.

An antenna has to be connected to the transceiver in a way of minimum power loss. The antenna feedpoint, the feedline and the transceiver output have their specific characteristic impedance. These different impedances need to be matched to each other to minimize standing waves. Standing waves or SWR influences are not always easily understand by many radio amateurs. In other words, there is a Myth about SWR circling around. Find out the truth and what impact SWR has on losses.

The need of an Antenna Tuner Unit is also many times in dispute among the radio amateurs community. Find out why an ATU is desirable and the many existing types to choose for matching purposes.

The balun is another item of confusion. Which one is best used and where best to install? How to build one yourself and what material to use? Find the answers to many more questions in Volume 2.

The Tables of Contents below give a pretty good hint of what topics are covered in the additional Volumes 3, 4, 5 and 6.

Experimenting, building and writing about antennas is a time-consuming task. I spend many hours in my little workshop or garden or reading magazines and books about antennas, or sitting at the computer writing or collecting information. Hours of time are used doing this when I could spend with being together with the family. I know I neglected my family more or less when busy with the hobby and the many months it took to write these books and the previous six series of books about Radio Wave Propagation. Without the understanding and encouragement of my family I would never have finished the books.

I must thank Jack Stone, publisher, to have given me the opportunity to publish my various materials to the world. Also, my special thanks and acknowledgments to L.B Cebik (SK) whose articles about antennas, and especially about antenna modeling techniques and examples, were of immense help in modeling antennas in a correct way.


Also, my 6-Volume series of books on Propagation can be found here. M.H. De Canck, ON5AU


About the Author
At the tender age of 10 (born 1943), Marcel H. De Canck, ON5AU became fascinated with radio when my father finally bought a radio set. What a miracle in the house now, from out of nothing and everywhere came wireless music and voices! But already at this young age, I was puzzled at a phenomenon noticed on the MF band at the higher frequency scale. During the evening hours something strange happened: the signal would exhibit a fading and a reduction of the sound volume. My mother called it "blowing away" like a wind can do. No one I asked had an answer for me at this time. Later this all became clear, it had something to do with propagation properties.

At the age of 13 I built my very first radio "crystal" set. Fascinated by this wonder of no power consumption I wanted to know more about radio in general. I enrolled to a technical course by postal correspondence about radio techniques. By age 14, I started doing repairs at every opportunity on defective radio sets of neighbors and relatives. All the more I wondered about "how do those radio signals get into the air"?

After a long search I was able to locate some literature and a book about the exciting radio amateur hobby. Shortly after, I became a member of the UBA Union Belgium Amateurs and helped by the members, I started studying transmitting theory and CW. In 1961 I obtained a license and was granted the call ON5AU.

After finishing high school radio electronics, I worked as a radio and TV repair technician in a local company. In 1974 I became interested in microprocessors, microcomputers and computer programming. During that same year I started working at the Bell Company Belgium, as a maintenance technician for their CNC machines. Fifteen years later, I become a field repair technician in a company that specialized in the manufacture of microprocessor-controlled presence terminals and access controls.

After early retirement in the summer of 2000, I had more time to pursue my interests in the hobby of amateur radio and increase my knowledge of propagation. Additionally, I became an editor for the radio amateur club's quarterly club magazine.

Other hobbies are photography, reading, writing, traveling, gardening and home brewing ham equipment and antennas.

 


What you get in Volume 1:
Below, a list of the contents of the 285-page book which contains hundreds of diagrams, color drawings, tables, graphs and photos in addition to the bonus items.

Here is an index of the titles found in Volume 1

Chapter

Title

Page

0 Introduction 9
1 Antenna Fundamentals 12
2 Wavelength, Frequency and Velocity 24
3 Length/Diameter ratio Influence on Impedance 35
4 Radiation Patterns and Directivity 47
5 The Half Wavelength Resonant Center-fed Dipole 59
6 Bandwidth 77
7 The Inverted-Vee Dipole 94
8 Bent Vertical Dipole 114
9 The Folded Dipole 129
10 Off-Center Fed Dipoles (OCF) 140
11 Off-Center Fed Halve Wavelength Dipole 157
12 All-Band Dipoles 181
13 The Doublet Antenna 208
14 The Multiband Dipole Antenna 227
15

Broad Banding a Dipole Antenna

249

16 Center-Fed and OCF Multi Half-Wavelength Dipole 271
o Postscript 284
o Other Publications 285
     

This Volume 1 is available for immediate Download or on CD-ROM:

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What you get in Volume 2:
Below, a list of the contents of the 303-page book which contains hundreds of diagrams, color drawings, tables, graphs and photos in addition to the bonus items.

Here is an index of the titles found in Volume 2

Chapter

Title

Page

     
17 Vertically Polarized HF Antennas 9
18 Ground Interaction 24
19 End, Top and Hat Loading 34
20 3/8 and 5/8 Monopoles 45
21 Multiband Verticals 58
22 Loop Antennas 67
23 Delta Loops - 1 79
24 Delta Loops - 2 97
25 Delta Loops - 3 111
26 Multiband Loops 125
27 More Loop Properties 142
28 Feeding and Matching 167
29 Feedline Attenuation 176
30 SWR 184
31

How Important is Low SWR

195

32 Matching 207
33 Matching at the Antenna 218
34 Matching - Balanced Unbalanced 233
35 Baluns 245
36 Current and Voltage Baluns 255
37 The ATU 271
38 More ATUs 282
O Postscript 302
O Other Publications 303
     

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What you get in Volume 3:
Below, a list of the contents of the 246-page book which contains hundreds of diagrams, color drawings, tables, graphs and photos in addition to the bonus items.

Here is an index of the titles found in Volume 3

 

Title

 

Chapter   Page
39 The W8JK Array 11
40 The Lazy-H 35
41 The Bi-Square Antenna 55
42 The ZL-Special & HB9CV 76
43 The Half Square – Part 1 91
44 The Half Square – Part 2 114
45 The Bobtail Curtain 134
46 The N4GG Array 163
47 VHF – UHF Arrays 185
48 The Collinear Franklin Array 207
49 The Sterba Curtain 225
O Postscript 245
O Other Publications 246
     

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What you get in Volume 4:
Below, a list of the contents of the 215-page book which contains hundreds of diagrams, color drawings, tables, graphs and photos in addition to the bonus items.

Here is an index of the titles found in Volume 4

 

Title

 

Chapter   Page
50 The Bruce Array 9
51 Wire Antennas – Part 1 31
52 Wire Antennas – Part 2 58
53 V-Arrays 89
54 V-Beam Arrays 107
55 The Rhombic – Part 1 131
56 Multiband Rhombic - Part 2 152
57 Multi-wire Rhombic – Part 3 171
58 The Beverage Antenna 191
0 Postscript 214
0 Other Publications 215
     

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What you get in Volume 5:
Below, a list of the contents of the 270-page book which contains hundreds of diagrams, color drawings, tables, graphs and photos in addition to the bonus items.

Here is an index of the titles found in Volume 5

 

Title

 

Chapter   Page
59 The Yagi 9
60 Two-Element Yagis 36
61 Three-Element Yagis 50
62 Tapered-Diameter Elements 71
63 Feeding the Yagi 90
64 Shrunken Yagis 106
65 Alternative Shapes 127
66 Diamond and Hex-Beams 149
67 More Shrunken Beams 171
68 The B-array and the Birdcage 196
69 The Moxon Rectangle 214
70 Vertically Oriented Beams 233
71 The G4ZU Bird Yagi and the V-Yagi 252
0 Postscript 269
0 Other Publications 270
     

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What you get in Volume 6:
Below, a list of the contents of the 238-page book which contains hundreds of diagrams, color drawings, tables, graphs and photos in addition to the bonus items.

Here is an index of the titles found in Volume 6

Chapter

Title

Page

   
72 The Cubical Quad 9
73 The Quad Dimensions 26
74 The Delta Loop Beam 44
75 The Hentenna 63
76 Quadlong Antennas and Hentenna Beams 75
77 Shrunken Quads 96
78 The Pfeiffer Quad 116
79 Feeding the Maltese Quads 137
80 The Quagi 157
81 Parallel Wires Multiband Antennas 173
82 Multiband Antennas by Using Traps 197
83 Trap Construction 213
o Postscript 237
o Other Publications 238
     

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