Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Report Post  
Old May 23rd 10, 04:17 AM posted to rec.radio.amateur.antenna
external usenet poster
 
First recorded activity by RadioBanter: Mar 2008
Posts: 1,339
Default Radiating coils

I just modeled two coils counter wound and one inside the other as a
complete closed circuit , end fed. Counter winding is quite the norm
with special purpose machinery to prevent inter tangling of coils when
compressed.
With the coils wound opposite to each other
it made quite a nice antenna when placed on a flat plate. Beam was
pencil shaped without side lobes and sensitive to all polarities.Thus
any such dishes could be used for 'point to point' using any type
circular polarization. Smaller in size compared to other designs is
rather obvious. Where Kraus determined such an antenna single wound
form demanded a certain angular pitch such a requirement is not
apparent with this design. Kraus assumed a certain pitch was required
when wave composition clashed, but the opposite happens when particles
vectors add. Another example of particle versus waves disputes.It also
confirms Maxwells equation by removing the effect of lumped loads
which was not included in his equation as was not the stipulation that
a radiator must be straight.

Caution:
Above details not yet "printed" in a book so it must be considered
questionable.
Regards
Art
  #2   Report Post  
Old May 27th 10, 01:01 PM posted to rec.radio.amateur.antenna
external usenet poster
 
First recorded activity by RadioBanter: Jul 2007
Posts: 91
Default Radiating coils

On May 23, 3:17*am, Art Unwin wrote:
I just modeled two coils counter wound and one inside the other as a
complete closed circuit...
Caution:
Above details not yet "printed" in a book so it must be considered
questionable.
Regards
Art


The book was written by Watson and Crick. You could look it up.
  #3   Report Post  
Old May 27th 10, 01:22 PM posted to rec.radio.amateur.antenna
external usenet poster
 
First recorded activity by RadioBanter: Apr 2010
Posts: 484
Default Radiating coils

On May 23, 2:17*am, Art Unwin wrote:
I just modeled two coils counter wound and one inside the other as a
complete closed circuit , end fed. Counter winding is quite the norm
with special purpose machinery to prevent inter tangling of coils when
compressed.
With the coils wound opposite to each other
it made quite a nice antenna when placed on a flat plate. Beam was
pencil shaped without side lobes and sensitive to all polarities.Thus
any such dishes could be used for 'point to point' using any type
circular polarization. *Smaller in size compared to other designs is
rather obvious. Where Kraus determined such an antenna single wound
form demanded a certain angular pitch such a requirement is not
apparent with this design. Kraus assumed a certain pitch was required
when wave composition clashed, but the opposite happens when particles
vectors add. Another example of particle versus waves disputes.It also
confirms Maxwells equation by removing the effect of lumped loads
which was not included in his equation as was not the stipulation that
a radiator must be straight.

Caution:
Above details not yet "printed" in a book so it must be considered
questionable.
Regards
Art


you have a nice little web site, please publish the design file and
picture of the antenna so we can all have a good laugh at it.
  #4   Report Post  
Old June 6th 10, 01:59 AM posted to rec.radio.amateur.antenna
external usenet poster
 
First recorded activity by RadioBanter: Mar 2008
Posts: 1,339
Default Radiating coils

On May 27, 6:22*am, K1TTT wrote:
On May 23, 2:17*am, Art Unwin wrote:



I just modeled two coils counter wound and one inside the other as a
complete closed circuit , end fed. Counter winding is quite the norm
with special purpose machinery to prevent inter tangling of coils when
compressed.
With the coils wound opposite to each other
it made quite a nice antenna when placed on a flat plate. Beam was
pencil shaped without side lobes and sensitive to all polarities.Thus
any such dishes could be used for 'point to point' using any type
circular polarization. *Smaller in size compared to other designs is
rather obvious. Where Kraus determined such an antenna single wound
form demanded a certain angular pitch such a requirement is not
apparent with this design. Kraus assumed a certain pitch was required
when wave composition clashed, but the opposite happens when particles
vectors add. Another example of particle versus waves disputes.It also
confirms Maxwells equation by removing the effect of lumped loads
which was not included in his equation as was not the stipulation that
a radiator must be straight.


Caution:
Above details not yet "printed" in a book so it must be considered
questionable.
Regards
Art


you have a nice little web site, please publish the design file and
picture of the antenna so we can all have a good laugh at it.


I expect to put some more things on my page
especially the model that I am honing now.
Now I have a 8 inch dia coil about 4 inches high relatively close
wound. Inside is the counter wound coil connected to the other coil to
make a closed circuit. It is placed on a perfect ground in leau of a
reflector. What I have done is balanced the inductance with the
capacitance, as you move around in frequency it will always be close
to resistive because of the balancing I have done.
It takes a while for the program to work from near
near resistance (.01 ohms) and I have now reached 11 ohms for 16.5 dbi
gain where the lower resistance gave me about 30 dbi
The resistance values are wave like as is the variation in gain per
cycle. Field shape so far varies from elliptical to something like the
double. zepp. My intention is to plot up to 20 ohms and that will take
several times longer than that taken already. The model has about a
dozen sections per
winding and I am pretty much limited to 10 segments per section. All
very interesting because I am following the idea of canceling all
lumped loads in line with Maxwells laws that deals only with
distributed loads. Frequency range covered up to now is 685 to 1200Mhz
With this amount of information you can start laughing now well
before I put it up
Art
  #5   Report Post  
Old June 6th 10, 03:36 AM posted to rec.radio.amateur.antenna
external usenet poster
 
First recorded activity by RadioBanter: Mar 2008
Posts: 1,339
Default Radiating coils

On Jun 5, 6:59*pm, Art Unwin wrote:
On May 27, 6:22*am, K1TTT wrote:



On May 23, 2:17*am, Art Unwin wrote:


I just modeled two coils counter wound and one inside the other as a
complete closed circuit , end fed. Counter winding is quite the norm
with special purpose machinery to prevent inter tangling of coils when
compressed.
With the coils wound opposite to each other
it made quite a nice antenna when placed on a flat plate. Beam was
pencil shaped without side lobes and sensitive to all polarities.Thus
any such dishes could be used for 'point to point' using any type
circular polarization. *Smaller in size compared to other designs is
rather obvious. Where Kraus determined such an antenna single wound
form demanded a certain angular pitch such a requirement is not
apparent with this design. Kraus assumed a certain pitch was required
when wave composition clashed, but the opposite happens when particles
vectors add. Another example of particle versus waves disputes.It also
confirms Maxwells equation by removing the effect of lumped loads
which was not included in his equation as was not the stipulation that
a radiator must be straight.


Caution:
Above details not yet "printed" in a book so it must be considered
questionable.
Regards
Art


you have a nice little web site, please publish the design file and
picture of the antenna so we can all have a good laugh at it.


I expect to put some more things on my page
especially the model that I am honing now.
Now I have a 8 inch dia coil about 4 inches high relatively close
wound. Inside is the counter wound coil connected to the other coil to
make a closed circuit. It is placed on a perfect ground in leau of a
reflector. What I have done is balanced the inductance with the
capacitance, *as you move around in frequency it will always be close
to resistive because of the balancing I have done.
It takes a while for the program to work from near
near resistance (.01 ohms) and I have now reached 11 ohms for 16.5 dbi
gain where the lower resistance gave me about 30 dbi
The resistance values are wave like as is the variation in gain per
cycle. Field shape so far varies from elliptical to something like the
double. zepp. My intention is to plot up to 20 ohms and that will take
several times longer than that taken already. The model has about a
dozen sections per
winding and I am pretty much limited to 10 segments per section. All
very interesting because I am following the idea of canceling all
lumped loads in line with Maxwells laws that deals only with
distributed loads. Frequency range covered up to now is 685 to 1200Mhz
With this amount of information you can start laughing now *well
before I put it up
Art


just did a check at 3 Ghz. 20 dbi at 5 ohm resistive
so I may not get to 20- ohm resistive So after I get a reasonable
graph I will have to modify the model
to see if I can increase the resistance spam.
Note that the metallic resistance calculated is to gauge losses and is
not the source impeadance


  #6   Report Post  
Old June 6th 10, 05:27 AM posted to rec.radio.amateur.antenna
tom tom is offline
external usenet poster
 
First recorded activity by RadioBanter: May 2009
Posts: 660
Default Radiating coils

On 6/5/2010 8:36 PM, Art Unwin wrote:
On Jun 5, 6:59 pm, Art wrote:
On May 27, 6:22 am, wrote:



On May 23, 2:17 am, Art wrote:


I just modeled two coils counter wound and one inside the other as a
complete closed circuit , end fed. Counter winding is quite the norm
with special purpose machinery to prevent inter tangling of coils when
compressed.
With the coils wound opposite to each other
it made quite a nice antenna when placed on a flat plate. Beam was
pencil shaped without side lobes and sensitive to all polarities.Thus
any such dishes could be used for 'point to point' using any type
circular polarization. Smaller in size compared to other designs is
rather obvious. Where Kraus determined such an antenna single wound
form demanded a certain angular pitch such a requirement is not
apparent with this design. Kraus assumed a certain pitch was required
when wave composition clashed, but the opposite happens when particles
vectors add. Another example of particle versus waves disputes.It also
confirms Maxwells equation by removing the effect of lumped loads
which was not included in his equation as was not the stipulation that
a radiator must be straight.


Caution:
Above details not yet "printed" in a book so it must be considered
questionable.
Regards
Art


you have a nice little web site, please publish the design file and
picture of the antenna so we can all have a good laugh at it.


I expect to put some more things on my page
especially the model that I am honing now.
Now I have a 8 inch dia coil about 4 inches high relatively close
wound. Inside is the counter wound coil connected to the other coil to
make a closed circuit. It is placed on a perfect ground in leau of a
reflector. What I have done is balanced the inductance with the
capacitance, as you move around in frequency it will always be close
to resistive because of the balancing I have done.
It takes a while for the program to work from near
near resistance (.01 ohms) and I have now reached 11 ohms for 16.5 dbi
gain where the lower resistance gave me about 30 dbi
The resistance values are wave like as is the variation in gain per
cycle. Field shape so far varies from elliptical to something like the
double. zepp. My intention is to plot up to 20 ohms and that will take
several times longer than that taken already. The model has about a
dozen sections per
winding and I am pretty much limited to 10 segments per section. All
very interesting because I am following the idea of canceling all
lumped loads in line with Maxwells laws that deals only with
distributed loads. Frequency range covered up to now is 685 to 1200Mhz
With this amount of information you can start laughing now well
before I put it up
Art


just did a check at 3 Ghz. 20 dbi at 5 ohm resistive
so I may not get to 20- ohm resistive So after I get a reasonable
graph I will have to modify the model
to see if I can increase the resistance spam.
Note that the metallic resistance calculated is to gauge losses and is
not the source impeadance


I assume you are using AOPro, since that is what you have previously
stated when asked what you use for analysis. AOPro is an old version of
Mininec wrapped in an optimizer with 2D and 3D result presentation. It
has none of the current corrections to fix the mathematical mistakes
that were made in the original Mininec. Sometimes those mistakes are
relevant, sometimes not. In the case of an antenna like you describe,
they probably mostly are.

If AOPro say 5 ohms + or - j something, the 5 is the real part of the
feedpoint impedance. It is not the loss as you state.

The maximum wire diameters of your model seem to be impractical for use
with Mininec where it is not advisable to go beyond .001 wavelengths
from what I'm able to determine. Based on that assumption I get a
maximum usable wire gauge for 685MHz of 25, and for 1200MHz 30. At 3000
it's a number not even on the AWG table I have -38. So to model this
antenna at 3000MHz you should use 38 AWG or smaller wire for any chance
of accurate results.

You also stated that it is close spaced but gave no numbers, so I can't
comment on that. But I have a feeling that too may violate the limits
of Mininec's calculation engine.

Be careful of what you model and how you model it. Distrust miraculous
results not confirmed by other methods.

tom
K0TAR

  #7   Report Post  
Old June 6th 10, 05:34 AM posted to rec.radio.amateur.antenna
tom tom is offline
external usenet poster
 
First recorded activity by RadioBanter: May 2009
Posts: 660
Default Radiating coils

On 6/5/2010 10:27 PM, tom wrote:

The maximum wire diameters of your model seem to be impractical for use
with Mininec where it is not advisable to go beyond .001 wavelengths
from what I'm able to determine. Based on that assumption I get a
maximum usable wire gauge for 685MHz of 25, and for 1200MHz 30. At 3000
it's a number not even on the AWG table I have -38. So to model this
antenna at 3000MHz you should use 38 AWG or smaller wire for any chance
of accurate results.


The guage was not meant to be -38, I missed the spacebar. It should
have read

"not even on the AWG table I have - 38."

tom
K0TAR
  #8   Report Post  
Old June 6th 10, 01:33 PM posted to rec.radio.amateur.antenna
external usenet poster
 
First recorded activity by RadioBanter: Jul 2006
Posts: 625
Default Radiating coils

On Jun 5, 7:59*pm, Art Unwin wrote:
On May 27, 6:22*am, K1TTT wrote:



On May 23, 2:17*am, Art Unwin wrote:


I just modeled two coils counter wound and one inside the other as a
complete closed circuit , end fed. Counter winding is quite the norm
with special purpose machinery to prevent inter tangling of coils when
compressed.
With the coils wound opposite to each other
it made quite a nice antenna when placed on a flat plate. Beam was
pencil shaped without side lobes and sensitive to all polarities.Thus
any such dishes could be used for 'point to point' using any type
circular polarization. *Smaller in size compared to other designs is
rather obvious. Where Kraus determined such an antenna single wound
form demanded a certain angular pitch such a requirement is not
apparent with this design. Kraus assumed a certain pitch was required
when wave composition clashed, but the opposite happens when particles
vectors add. Another example of particle versus waves disputes.It also
confirms Maxwells equation by removing the effect of lumped loads
which was not included in his equation as was not the stipulation that
a radiator must be straight.


Caution:
Above details not yet "printed" in a book so it must be considered
questionable.
Regards
Art


you have a nice little web site, please publish the design file and
picture of the antenna so we can all have a good laugh at it.


I expect to put some more things on my page
especially the model that I am honing now.
Now I have a 8 inch dia coil about 4 inches high relatively close
wound. Inside is the counter wound coil connected to the other coil to
make a closed circuit. It is placed on a perfect ground in leau of a
reflector. What I have done is balanced the inductance with the
capacitance, *as you move around in frequency it will always be close
to resistive because of the balancing I have done.
It takes a while for the program to work from near
near resistance (.01 ohms) and I have now reached 11 ohms for 16.5 dbi
gain where the lower resistance gave me about 30 dbi
The resistance values are wave like as is the variation in gain per
cycle. Field shape so far varies from elliptical to something like the
double. zepp. My intention is to plot up to 20 ohms and that will take
several times longer than that taken already. The model has about a
dozen sections per
winding and I am pretty much limited to 10 segments per section. All
very interesting because I am following the idea of canceling all
lumped loads in line with Maxwells laws that deals only with
distributed loads. Frequency range covered up to now is 685 to 1200Mhz
With this amount of information you can start laughing now *well
before I put it up
Art


Art you must have quite an impressive antenna lab and range. I will be
in Peoria in a couple of weeks for about 3 weeks I would like to come
over and see your setup.

Jimmie
  #9   Report Post  
Old June 6th 10, 08:26 PM posted to rec.radio.amateur.antenna
external usenet poster
 
First recorded activity by RadioBanter: Mar 2008
Posts: 1,339
Default Radiating coils

On Jun 5, 10:34*pm, tom wrote:
On 6/5/2010 10:27 PM, tom wrote:

The maximum wire diameters of your model seem to be impractical for use
with Mininec where it is not advisable to go beyond .001 wavelengths
from what I'm able to determine. Based on that assumption I get a
maximum usable wire gauge for 685MHz of 25, and for 1200MHz 30. At 3000
it's a number not even on the AWG table I have -38. So to model this
antenna at 3000MHz you should use 38 AWG or smaller wire for any chance
of accurate results.


The guage was not meant to be -38, I missed the spacebar. *It should
have read

"not even on the AWG table I have - 38."

tom
K0TAR


The important point that I put forward is that the program is based
around Maxwells formula. In the engineering world this is factual. If
something deviates from Maxwells laws you cannot say 'don't go there'
and you cannot overthrow what the program provides and at the same
time when it is in accordance with Maxwells laws. To follow that path
is to over throw Maxwell to reinforce your own will. That is not
science.
This approach overthrows fact for success in favor of the present
approach on this group that is based on perceived probabilities that
all other competing theories are based upon.
I continue to use my program and let all the chips fall where they
may. So far, and I have a long way to go, is that skin depth minimises
as current flow
moves out of the metallic member and closer to encapsulating particles
provided by the Gaussian equation. There is no reason to put a halt to
this work until it is proven that the program deviates from Maxwells
equations and thus is fraudulent.
I and nobody else, has pointed at any specific point of my work that
specifically states that my approach is in error based on known
boundary rules and classical physics. All assaults have been based
purely on opinion, mostly in a derogatory way to preserve resistance
to change rather than the path of better understanding.
  #10   Report Post  
Old June 6th 10, 09:13 PM posted to rec.radio.amateur.antenna
external usenet poster
 
First recorded activity by RadioBanter: Apr 2010
Posts: 484
Default Radiating coils

On Jun 6, 6:26*pm, Art Unwin wrote:
On Jun 5, 10:34*pm, tom wrote:



On 6/5/2010 10:27 PM, tom wrote:


The maximum wire diameters of your model seem to be impractical for use
with Mininec where it is not advisable to go beyond .001 wavelengths
from what I'm able to determine. Based on that assumption I get a
maximum usable wire gauge for 685MHz of 25, and for 1200MHz 30. At 3000
it's a number not even on the AWG table I have -38. So to model this
antenna at 3000MHz you should use 38 AWG or smaller wire for any chance
of accurate results.


The guage was not meant to be -38, I missed the spacebar. *It should
have read


"not even on the AWG table I have - 38."


tom
K0TAR


The important point that I put forward is that the program is based
around Maxwells formula. In the engineering world this is factual. If
something deviates from Maxwells laws you cannot say 'don't go there'
and you cannot overthrow what the program provides and at the same
time when it is in accordance with Maxwells laws. To follow that path
is to over throw Maxwell to reinforce your own will. That is not
science.
This approach overthrows fact for success in favor of the present
approach on this group that is based on perceived probabilities that
all other competing theories are based upon.
I continue to use my program and let all the chips fall where they
may. So far, and I have a long way to go, is that skin depth minimises
as current flow
moves out of the metallic member and closer to encapsulating particles
provided by the Gaussian equation. There is no reason to put a halt to
this work until it is proven that the program deviates from Maxwells
equations and thus is fraudulent.
I and nobody else, has pointed at any specific point of my work that
specifically states that my approach is in error based on known
boundary rules and classical physics. All assaults have been based
purely on opinion, mostly in a derogatory way to preserve resistance
to change rather than the path of better understanding.


oh please put an end to it... i will tell you outright that the
program deviates from maxwell's equations! at very small or very
large extremes it deviates quite a lot! and that is of course why all
your results that you let it optimize too far are garbage, you are not
conforming with maxwell.
Reply
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
A gaussian style radiating antenna art Antenna 33 December 6th 06 11:52 PM
Icom AH-4 mobile users: radiating element? =K=5=D=H= Antenna 10 February 21st 05 04:48 PM
Icom AH-4 mobile users: radiating element? =K=5=D=H= Equipment 9 February 21st 05 04:48 PM
Non-radiating Feedlines? Richard Fry Antenna 22 June 15th 04 05:29 AM
Physical size of radiating element? FAZAMY Antenna 3 January 30th 04 04:29 PM


All times are GMT +1. The time now is 06:22 PM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 RadioBanter.
The comments are property of their posters.
 

About Us

"It's about Radio"

 

Copyright © 2017