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ANTENTOP- 01- 2005, # 007  

Transmitting magnetic loop antennas

 

 

Transmitting magnetic loop antennas

 

 

If you can read in Russian you can download a free 73- pages e- book “Transmitting Magnetic Loop Antennas” by Igor Grigorov, RK3ZK. The book is e- variant of a chapter from a paper book “Antennas for Radioamateurs printed in Russia”. Some fragment of the book was translated in the English and was published (and, as I hope, will be published) at ANTENTOP. Other fragments of the book also going to translated in the English. Below you can see the Contents of the book and path to load the Russian variant. 

 

Transmitting magnetic loop antennas

 

By Igor Grigorov, RK3ZK.

 

Free e- book!

 

Download!

http://www.antentop.org/library/

 

 

 

Table of Contents

 

 

 

Transmitting magnetic loop antennas

 

1. Magnetic loop antennas

 

2. What a magnetic loop antenna is

 

3. Equivalent circuit of the magnetic loop antenna

 

4. Resistance of radiation and resistance of losses of the magnetic loop antenna

 

5. Efficiency of the magnetic loop antenna

 

6. Antenna programs at modeling of magnetic loop antennas

 

7. Parameters of the magnetic loop antenna

 

8. Shape of the magnetic loop antenna

 

9. One- turn vs. multi turn magnetic loop antenna

 

10. Tuning capacitor of the magnetic loop antenna

 

11. Stuff of the magnetic loop antenna

 

12. Receiving magnetic loop antennas

 

13. Braid of a coaxial cable as stuff of magnetic loop antennas

 

14. Definition of losses in plastic shell of coaxial cable based on changing of HF voltage across tuning capacitor of the magnetic loop antenna

 

15. Definition of losses in plastic shell of coaxial cable based on changing of bandwidth of the magnetic loop antenna

 

16. Conclusions on using of braid of a coaxial cable as a stuff of the magnetic loop antenna

17. Circuit for definition of losses brought by the plastic shell stuffing coaxial cable in magnetic loop antenna

 

18. Definition of losses brought by plastic shell stuffing coaxial cable in magnetic loop antenna by measuring of HF voltage across a small length of the magnetic loop antenna

 

19. Bench for measurement of losses at the magnetic loop antenna

 

20. Simplified definition of losses brought by the plastic shell of a coaxial cable in the magnetic loop antenna

 

21. Atmospheric influence on the magnetic loop antenna

 

22. Diagram directivity of the magnetic loop antenna

 

23. Diagram directivity of the magnetic loop antenna in free space

 

24. Diagram directivity of a vertical magnetic loop antenna above real ground

 

25. Diagram directivity of a horizontal magnetic loop antenna above real ground

 

26. Feeding the magnetic loop antenna across the tuning capacitor

 

27. Gamma feeding of the magnetic loop antenna

 

28. Feeding of the magnetic loop antenna by a small coupling loop

 

29. Transformer feeding of the magnetic loop antenna

 

30. Tuning of the feeding transformer of the magnetic loop antenna

http://www.antentop.org/

Page 86

 

86 87

 

 

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