ad_page.jpg (22163 bytes)SMALL & EXOTIC ANTENNAS
A Compendium of Evaluations
Learn the Real Performance from the Experts!

ELIMINATING RUMORS & CONFUSION
t.jpg (1523 bytes)here is a great deal of confusion about the emerging technology of compact antennas and those that claim to be highly efficient compacts. There are numerous ways an antenna can radiate and perhaps mislead as to its true performance. Remember also that an antenna is by nature a "coupling device" and some do it better than others. To get at the truth about the performance of an antenna, certain clinical test conditions must be met and real measurements must be made. The "antenna" must be tested while isolated from other influences that would distort its true performance.

Adding to the confusion about these “compacts” are the uninformed discussions, or just plain unfounded rumors. It is quite amazing how long claims about performance are allowed to go unchecked and continue to perpetuate in the field of antennas—not just compacts, but many conventional antennas as well. This is really a caveat emptor business. It doesn't need to be so because it's not all that hard or expensive to do sufficient measurements to check those claims. Forget QSOs or just A/B—that’s not meaningful enough.

REAL PERFORMANCE, NOT JUST THEORY
If one is a radio amateur who possesses a device that consistently does what one wants, then that may be fine. However, it does not mean a whit as to the REAL performance of that device. The device may actually be radiating from the feedline and/or coupling and amplifying its signal from the surroundings—that is NOT the antenna you thought you bought and told was a compact!

The statements here are not meant to imply that all claims are false or even distorted by the promoters—only that many of these claims are just taken for granted and may remain unchecked. If the claims are left to stand long enough, then they tend to become "fact" and any real basis for it long lost over time. The Isotron is one good example of this. This device had been around for more than two decades before it was expertly investigated by one of our writers and the results reported by antenneX. Until that happened, the device was shrouded in mystery and rumors—well, no longer!

ISOTRON EXPLAINED
We mention the Isotron only because it has been around the longest without any visible published test of claims among the group of small antennas analyzed in this book. The Isotron is only one of 12 different groups of “compacts” that have emerged within the past 20 years analyzed in this special 470-page book “Small and Exotic Antennas.” This book has been needed for a long time and is especially aimed at reducing the confusion about the most talked-about compacts. It contains 50 chapters of the theory, construction, use and test performance of some of the most popular compacts. So, if you are considering any of these compacts as a solution to an antenna need but wonder about their performance, this book is for you. At the very least, you will be better informed before making a decision and spending your money and valuable time.

Acronym Expanded Name/Application
ANTAP Antenna for Apartments
CFA Crossed Field Antenna
CTHA Contrawound Helical Toroidal Antenna
CUBES Cube-C, Double-Folded Cube-C, ADR, Cube-L
DDRR Direct Drive Ring Radiator
DLM Distributed Load Monopole
EHA Electric & Magnetic managed fields
Fractals Fractured geometric managed shapes
Isotron Word contractions combined to name the device
MicroVert More word combos - Small Vertical
GAP Super C Product name coined by GAP antenna company
TeslaVert Nickola Tesla's Coil theory applied to a vertical

ABOUT THE AUTHORS
We have some of the finest authors and antenna experts whose works on which this book is based. We have attached a brief professional biography of each author/tester by order of first appearance in the book: Click here for Authors

CONTENTS
Even if you are not considering a use of one of these devices, this new book makes an excellent compendium of knowledge about how the antenna technology has evolved over the past 20 years. There is no other book like this book and it can fill a very large gap in your library! One look at the list of contents below shows just how large a void it fills about the current technology emerging in a myriad of concepts to shrink the present antenna designs. 

Chapter

Title

INTRO

PRIMER & GUIDELINES

1

And From this Comes Antennas 16

2

In Search of New Antenna Technology 25

3

Practical Ways to Measure the Gain of an Antenna 29

4

Modeling, Building Testing 35

5

Compact Antennas: In Search of the Holy Grail 46
6 Sorting Out the Quest for a Compact Antenna 49
7 Size Limits, Specs & Test Methods for Compacts 56
8 Struck by an Antenna 61
9 The Smallest Antenna 66

PART 1

The ANTAP

10

The Apartment Antenna: Part 1 70

11

The Apartment Antenna: Part 2 81

12

The Apartment Antenna: Part 3 89

PART 2

The CFA

13

CFA for 160 Meters: Part 1 102

14

CFA for 160 Meters: Part 2 107

15

CFA for 160 Meters: Part 3 121

16

CFA FS Measurements Under Controlled Conditions 131

PART 3

The CTHA

17

CTHA Evaluation 151

18

Hawks CTHA 164

19

CTHA vs Fire Ring 168

PART 4

The CUBES

20

The Compact Cube

177

21

The Compact Cube Part 2: Practical Dimensions 187
22 The Compact Cube: Double-Folded Cube-C 194
23 The ADR Compact Loop 203
24 The L-Cube 212
25 Historical Overview of the Cube Family of Antennas 223

PART 5

The DDRR

26

The DDRR an Antenna for Small Places 235

27

The DDRR Antenna 238
28 The DDRR Math 246
29 Building a 11-Meter DDRR Antenna 251

PART 6

The DLM
30 The Distributed Load Monopole Antenna 257
PART 7 The EH
31 The EH - Farewell to Hertz? 267
32 Testing the EH: Part 1 270
33 Testing the EH: Part 2 286
34 Belrose on the EH Antenna 303
PART 8 The FRACTALS
35 Fractal Antenna Technology Explained 310
36 Fractal Antennas Tested 326
37 The Fractent 20: A Fractal Antenna for 14MHz 337
38 Small Fractal Antennas 346
PART 9 The ISOTRON
39 The Isotron Revealed: Part 1 355
40 The Isotron Revealed: Part 2 369
PART 10 The MICROVERT
41 The MicroVert Theory 383
42 The DL7PE MicroVert 388
43 The MicroVert Analyzed: Part 1 399
44 The MicroVert Analyzed: Part 2 411
45 Short Antennas: Is the MicroVert an Answer? 422
PART 11 The GAP SUPER C
46 The GAP Super C Analyzed: Part 1 433
47 The GAP Super C Analyzed: Part 1 443
PART 12 The TESLAVERT
48 The New TeslaVert for 160 Meters 456
49 The 160-Meter TeslaVert Analyzed 461
50 Anomalies of a TeslaVert Experiment 468
   
   

HOW TO ORDER
This special book is available only in eBook version either on CD-ROM or Download. The eBook is in the popular PDF format and requires the Adobe Acrobat Reader 5.0+. The eBook may be purchased by immediate download directly from this website, or shipped to you on CD-ROM. You may order your eBook directly online from our Secure Website, or by FAX, telephone or postal service. Links to the ORDER FORMS are provided here.

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