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#1
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Is the Fariday rotation effect incorporated in any way with the basic
NEC 2 and 4 computor design programs? Art |
#2
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On Feb 16, 10:55 pm, "art" wrote:
Is the Fariday rotation effect incorporated in any way with the basic NEC 2 and 4 computor design programs? Art To the extent that it needs to be, yes. Dan |
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On 17 feb, 04:55, "art" wrote:
Is the Fariday rotation effect incorporated in any way with the basic NEC 2 and 4 computor design programs? Art Hello Art, If you main the rotation of polarization of a wave during transit in a DC magnetized medium, it is NO for NEC2. I do not believe that it is modeled in NEC4. Best Regards, Wim |
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On 17 Feb, 07:58, "Wimpie" wrote:
On 17 feb, 04:55, "art" wrote: Is the Fariday rotation effect incorporated in any way with the basic NEC 2 and 4 computor design programs? Art Hello Art, If you main the rotation of polarization of a wave during transit in a DC magnetized medium, it is NO for NEC2. I do not believe that it is modeled in NEC4. Best Regards, Wim Yes that is what I mean noting that since it cannot be cancelled it thus applies to a.c. as well. I somehow believe that it is connected in some way to curl but ofcourse I have no reference to it. I have the distinct feeling that it refers to the offset in polarity created by the horizontal vector of curl which thus means for the case of equilibrium polarity cannot be at right angles to the radiating elements surface or parallel to it . I can duplicate this situation using NEC based computor programs i.e. tilt, but I cannot find reference to it anywhere. One must remember that Faradays work is now quite old with respect to modern day advances but then we are now getting a bit deep for most readers. My computor program predates NEC 4 ! Regards Art |
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On 17 feb, 18:04, "art" wrote:
On 17 Feb, 07:58, "Wimpie" wrote: On 17 feb, 04:55, "art" wrote: Is the Fariday rotation effect incorporated in any way with the basic NEC 2 and 4 computor design programs? Art Hello Art, If you main the rotation of polarization of a wave during transit in a DC magnetized medium, it is NO for NEC2. I do not believe that it is modeled in NEC4. Best Regards, Wim Yes that is what I mean noting that since it cannot be cancelled it thus applies to a.c. as well. I somehow believe that it is connected in some way to curl but ofcourse I have no reference to it. I have the distinct feeling that it refers to the offset in polarity created by the horizontal vector of curl which thus means for the case of equilibrium polarity cannot be at right angles to the radiating elements surface or parallel to it . I can duplicate this situation using NEC based computor programs i.e. tilt, but I cannot find reference to it anywhere. One must remember that Faradays work is now quite old with respect to modern day advances but then we are now getting a bit deep for most readers. My computor program predates NEC 4 ! Regards Art Hello Art, As far as I know, all (maybe most) simulators for antennas assume the media to be HILS, you can only enter properties like u', u'' or e' e'', or in the form of absolute u or e together with a loss factor. Probably there will be specialized simulators or custom programs within research facilities that can handle non-HILS meda, but I think that is of no use for antenna design for radiocommunication where the interface is air. Of course for propagation faraday rotation can be of importance. If a metallic structure gives rise to polarization change, this will be shown by antenna simulators that can visualize field properties like E and H. Best Regards, Wim PA3DJS |
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On 18 Feb, 08:20, "Wimpie" wrote:
On 17 feb, 18:04, "art" wrote: On 17 Feb, 07:58, "Wimpie" wrote: On 17 feb, 04:55, "art" wrote: Is the Fariday rotation effect incorporated in any way with the basic NEC 2 and 4 computor design programs? Art Hello Art, If you main the rotation of polarization of a wave during transit in a DC magnetized medium, it is NO for NEC2. I do not believe that it is modeled in NEC4. Best Regards, Wim Yes that is what I mean noting that since it cannot be cancelled it thus applies to a.c. as well. I somehow believe that it is connected in some way to curl but ofcourse I have no reference to it. I have the distinct feeling that it refers to the offset in polarity created by the horizontal vector of curl which thus means for the case of equilibrium polarity cannot be at right angles to the radiating elements surface or parallel to it . I can duplicate this situation using NEC based computor programs i.e. tilt, but I cannot find reference to it anywhere. One must remember that Faradays work is now quite old with respect to modern day advances but then we are now getting a bit deep for most readers. My computor program predates NEC 4 ! Regards Art Hello Art, As far as I know, all (maybe most) simulators for antennas assume the media to be HILS, you can only enter properties like u', u'' or e' e'', or in the form of absolute u or e together with a loss factor. Probably there will be specialized simulators or custom programs within research facilities that can handle non-HILS meda, but I think that is of no use for antenna design for radiocommunication where the interface is air. Of course for propagation faraday rotation can be of importance. If a metallic structure gives rise to polarization change, this will be shown by antenna simulators that can visualize field properties like E and H. Best Regards, Wim PA3DJS- Hide quoted text - - Show quoted text - Wimpie I do like your style of debate even where some statements appear lacking in thought. Back to the subject. I would agree that such rotation if viable would appear in E H diagrams since Faradays rotation is about equilibrium in relative cosmic terms. This now leads to the main question of radiation where the current distribution on a radiating member is shown in a two dimensional form which by intuition states that the direction of radiation is at right angles to the radiator but this would only be true when it is not time related. Even if it was time related the vectors involved cannot produce a vector for the culmination of both vectors that would point in a direction at right angles to the radiating surface ( this is moving from cosmic relativity to local relativity if you follow my point ) Thus intuitively maximum radiation cannot possibly be at right angles to the radiator and also not, at right angles to the earth unless compensating tilt is given to the radiator. To prove this one can place a vertical radiator at right angles to the earths surface and record the differences in radiation IN ALL POLARITIES at every degree of tilt until equilibrium occurs ( this I have confirmed by the use of a computor program that designs a vertical dipole where all dimensions are variable at the beginning and where the computor arrives at the point of equilibrium ) So in summation Faradays rotation is a subject of equilibrium and in his case refers to cosmic and where "curl " is a derivative thereof with respect to earth, which as you state will be shown in the E and H vector format. Hopefully you can follow all that and prove it for yourself with a vertical radiator design. Best Regards Art |
#7
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![]() "art" wrote big snip Wimpie I do like your style of debate even where some statements appear lacking in thought. big snip Back to the subject. So in summation Faradays rotation is a subject of equilibrium and in his case refers to cosmic and where "curl " is a derivative thereof with respect to earth, which as you state will be shown in the E and H vector format. Hopefully you can follow all that and prove it for yourself with a vertical radiator design. Best Regards Art Art: I have been working on my closed_mindedness, and feel that I will make significant improvement if you will provide me with enough hard data to build a version of your magnificent antenna. 1. Has a physical version of your antenna been constructed? 2. I have sworn off of EZNEC, so I would need a copy of your antenna model, in any commercially available computor (sic) program format.. 3. I have access to aluminum in plate, tube, or foil form. Would I need anything else? 4. What would be the best way to feed the array, so as to prevent intermodial dirfraction? 5. I can mount the main elements on some Milford trunnions that I have saved for just such a project. Do you think that bipolar status is attainable? Glad to see you doing so well. Mike W5CHR Memphis |
#8
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On 18 Feb, 12:47, "Mike Lucas" wrote:
"art" wrote big snip Wimpie I do like your style of debate even where some statements appear lacking in thought. big snip Back to the subject. So in summation Faradays rotation is a subject of equilibrium and in his case refers to cosmic and where "curl " is a derivative thereof with respect to earth, which as you state will be shown in the E and H vector format. Hopefully you can follow all that and prove it for yourself with a vertical radiator design. Best Regards Art Art: I have been working on my closed_mindedness, and feel that I will make significant improvement if you will provide me with enough hard data to build a version of your magnificent antenna. 1. Has a physical version of your antenna been constructed? 2. I have sworn off of EZNEC, so I would need a copy of your antenna model, in any commercially available computor (sic) program format.. 3. I have access to aluminum in plate, tube, or foil form. Would I need anything else? 4. What would be the best way to feed the array, so as to prevent intermodial dirfraction? 5. I can mount the main elements on some Milford trunnions that I have saved for just such a project. Do you think that bipolar status is attainable? Glad to see you doing so well. Mike W5CHR Memphis Mike, As you can see from this thread that I have nmoved on a bit from my antenna to think about Faraday rotation which academics view it from a D.C application and where I have extended it to a time variant form where it is not necessarily confined to ferrous applications relationship to life w2hich would provide an offset angle of half of that seen by radio radiation shown by curl which by virtue of its non cancallation properties becomes twice the value because of time varience. Intriuing connection there to Newtons law for ut +1/2 ft squared but I have moved off subject. I am not computor literate so I have to have help in formulating a page to describe my ramblings. This moves so slow because I keep finding spelling errors and unclear enunciation which in the past has made me a subject of ridicule. Maybe tonight I will let it go as is regardless of the consequences and place it on the web. I really have made it difficult for myself by not keeping on subject and deriving in my own mind how molecular movement occurs in the cycle of formation of radiation such that skin depth can be rationalised as the depth of visible decay which I ventured on this thread some time ago and immediately was assigned to the luny farm. This theoretical reasoning may well detract from the antenna design in the minds of some so I have the dilema as to whether I merge or separate them. If you put the term Gauss or gaussion regularly on Google it wont be to long before you can pull it up or you can wait for the onslaught of naysayers that will inevitably occur who constantly refer to what is not correct while ignoring any small advance that may be of interest. Regards Art |
#9
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On 18 Feb, 12:47, "Mike Lucas" wrote:
"art" wrote big snip Wimpie I do like your style of debate even where some statements appear lacking in thought. big snip Back to the subject. So in summation Faradays rotation is a subject of equilibrium and in his case refers to cosmic and where "curl " is a derivative thereof with respect to earth, which as you state will be shown in the E and H vector format. Hopefully you can follow all that and prove it for yourself with a vertical radiator design. Best Regards Art Art: I have been working on my closed_mindedness, and feel that I will make significant improvement if you will provide me with enough hard data to build a version of your magnificent antenna. 1. Has a physical version of your antenna been constructed? 2. I have sworn off of EZNEC, so I would need a copy of your antenna model, in any commercially available computor (sic) program format.. 3. I have access to aluminum in plate, tube, or foil form. Would I need anything else? 4. What would be the best way to feed the array, so as to prevent intermodial dirfraction? 5. I can mount the main elements on some Milford trunnions that I have saved for just such a project. Do you think that bipolar status is attainable? Glad to see you doing so well. Mike W5CHR Memphis Mike, I have looked at what I have done so far and the simple fact is that I am really loosing interest in separating and cleaning it up so I will issue what I have for a few days so that my concience is clear and I have done as I promised. I also understand that if I did take the time to separate it into just the computor stuff I would still get hammered so I will go with the flow and put it on the web and maybe take a vacation for a while http://home.insightbb.com/~aunwin/index.htm Please dont Email me I dont want the hassle. I have kept out the keywords of Gaussian and antenna so the writings will stay localised prior to me removing it Regards Art |
#10
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On Sun, 18 Feb 2007 14:47:46 -0600, "Mike Lucas" wrote:
"art" wrote big snip Wimpie I do like your style of debate even where some statements appear lacking in thought. big snip Back to the subject. So in summation Faradays rotation is a subject of equilibrium and in his case refers to cosmic and where "curl " is a derivative thereof with respect to earth, which as you state will be shown in the E and H vector format. Hopefully you can follow all that and prove it for yourself with a vertical radiator design. Best Regards Art Art: I have been working on my closed_mindedness, and feel that I will make significant improvement if you will provide me with enough hard data to build a version of your magnificent antenna. 1. Has a physical version of your antenna been constructed? 2. I have sworn off of EZNEC, so I would need a copy of your antenna model, in any commercially available computor (sic) program format.. 3. I have access to aluminum in plate, tube, or foil form. Would I need anything else? 4. What would be the best way to feed the array, so as to prevent intermodial dirfraction? 5. I can mount the main elements on some Milford trunnions that I have saved for just such a project. Do you think that bipolar status is attainable? Glad to see you doing so well. Mike W5CHR Memphis Mike, you stated above that you have sworn off EZNEC. Will you please explain what has occurred that would possibly cause you to make such a horrendous decision? I use EZNEC all the time. What am I missing? Walt, W2DU |
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