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antenna_kid

Materials for construction...

Hi, I looking for good materials to construct antenna. 
I know that PTFE is best choice. But that material isn't cheap and in my case, most important thing - isn't easy to work with it on CNC (specially thin plates 3mm to 6mm). It's to soft, it's not easy to mount on table and it's not easy to glue (I know that there are glues with primers).
What about PC, PMMA, PA, PP and others. 
I've found that PET is good choice - is that true ?

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The best material for the construction of the antennas is the sheet, thickness of 0.15-0.5mm

This is from the sheet of aluminum tin cans boxes

 

DSC_0944.JPG

2 people like this

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,,, good, show me such a material in practice ... !!!

For the helix antennas does not really matter dielectric material, but I think the best is Teflon , Polystyrene and the Air

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you have right. But sometimes we can't use them.

example:
crosshair_sky_front_1g3.jpg

a lot of PMMA.

It's obvious that will shift antenna characteristics. But I suppose that materials will have also impact on other properties of antenna.

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PMMA
Organic glass (plexiglass), or polymethyl methacrylate (PMMA)...???

The dielectric constant of PMMA is around 4.9....very bad

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On 10/4/2017 at 11:21 PM, Admin said:

The best material for the construction of the antennas is the sheet, thickness of 0.15-0.5mm

This is from the sheet of aluminum tin cans boxes

 

DSC_0944.JPG

 How To Build this Brother ? 

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On 10/4/2017 at 11:21 PM, Admin said:

sheet of aluminum tin cans boxes

How about stainless steel sir?, since it cheaper.

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,,,it"s good too...!!!

1 person likes this

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