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Patch Panel 3G

32 posts in this topic

Double Patch Regular Polyhedron

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The rectangle 94*68 mm, the sides of the cutting plane 28 and 16 mm rack Diameter 6 mm.
each patch has an input impedance of 100 Ohms, between 0.5 *Lambda of the connecting line. Obtained by parallel connection of 50 Ohms.
And cool chart SWR
the broadband is a patch in the form of an pseudo- ellipse with eccentricity 0.8, 2 Patches of narrow-band, but with the increase of the gap band of operating frequencies increases at 0.1 Lambda reaches 10/11 %. When band gaps, increases the ability of multi-mode excitation. With the increase of the gap increases and the value of the input impedance.
Based on this information, can built a patch with a gap from the reflector is 15 mm.
The line length is 0.5 L, so its width is not critical. In this project its width is about 2 mm d = 1 mm
The gap( between the surfaces) 15 mm width  to reflector Conn. line 13 mm.
the distance between the two coherent emitters choose, usually based on two criteria. Or the maximum gain, then it's 1 lambda or a little more. Or at a minimum side lobes, then it is less than lambda, about 0.7/0.8.
 

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14 minutes ago, vodkaman said:

Very nice antenna.

 Yes, and you can post your version,four pseudo-ellipse( quadro)....!!

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?????? ?????. ??????? ? ???? ??????? ???? ? ?? ?? ??? ? ?? ????????. ? ??? ??? ???? ?????? ?????? ????????? ? ??? ??????? ??????? ????????.)) ??????? ? ??????? ??? ???????? ? y??????? ????????.

 

 

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A new panel antenna with 2 patches and 2 rectangular directors for the 2.1GHz frequency

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and with the lateral wing version...

 

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Adaptation line dimensions

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,,,for Guest...

dimensions gauge reflector

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With such dimensions of the reflector it is possible to be such an antenna gain

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I think this is an ideal double-patches form of antenna...

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"at user request, sa3500, I tried to optimize this antenna ...

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,,, what do you mean 85% ... ???

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I completed the antenna almost. 

85% - work done :)

 

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"Well, then everything is okay...!!!

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"And here's the sizes ...

 

,,, for the adaptation line, the copper wire with a diameter of 2.6mm

 

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Posted (edited)

ОК. Thank you. I think I'll post a photo tomorrow

 

Edited by sa3500

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,,, the formidable work ...!!!  and how does it go ...?

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It showed a slightly worse result than this antenna:

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Later I will try to put the dielectric between the plates and remove the bolts.

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,,,it's normal to have a slightly worse result, it does not have 4patches...!!!

,,,the dielectric changes its dimensions and has little influence.

I will try to make such an antenna with 4patches.

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Posted (edited)

And on this antenna you can put 8 patches? Or it will give nothing?

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Edited by sa3500

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I think it is possible, and it increases the gain  to 18-19dBi...!!!

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