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Dr. Pepper

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About Dr. Pepper

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  1. Could the com666 multiband batwing be an option to cover 800-2700?
  2. Here in the forum you can find a lot of information. For example look here:
  3. I i didn't see your post, i simply copy translated a director and then scaled it to the right dimension. I messed up the material and color so i changed it afterwards. I started with the reflector back metal, the insulator and then the second metal and then simply copied it over and over again and resized it
  4. The solution i found with the added konus elements. It works but i couldn't find the claimed 17dbi. At least 15dbi and a good swr of 1.2 is possible.
  5. I tried Admins cst file and with this i was able to optimize the structure a little bit. Why my design not works i don't know. I will try to recreate it and find the error. Attached is what i was able to archive with the "konus" antenna, yet the konus is still missing but i will try to add it to raise the gain a little. So it should be possible to make a good antanna even when you only have metal covered plastic disks.
  6. I think i have some error with the port, i removed the sma connector and used a discrete port and now the results are much better. I will optimize a litte and look what is possible
  7. I tried to model the antenna in cst but the design seems not to be right. Can also be that i make a mistake in the design, its a long time since i used the software before. Therefore the parameters are also a bit screwed up. But if you want to look into the design i add the cst file for playing around. When this works it will be very easy to produce such an antenna via 3D printing or with a cheap laser. It is possible to first cut polymer disks and then cover them with conductive tape or simply cut double sided metal covered polymeric material with a cheap laser. Konus-test.cst
  8. Direct visibility is key for range. We tested 15y ago our cantennas in the field and it was no problem to establish a stable connection.
  9. Cool idea, this should it make possible to simply 3d print the disks and to cover them with metal tape. When the metal is on both sides then the plastic material it should not produce to many issues because the whole assembly will act like a capacitor with low resistance at 2.4 ghz. But here is even a connection with the center rod so with a new calculation the antenna should perform nearly like a 100% metal one (without looking through the videos to find out if there is a big difference :-).
  10. I also try to add more Plastic to the antenna for more stability but the performance was worse. There should be only minimal Material in contact to the antenna. I can only imagine a foam material or something similar, perhaps cutting foam and laminating it with copper tape.
  11. On page 12 you will find a calculated batwing for 5ghz, i give there also the dimensions. It also works good at 5.8ghz
  12. No its not my Database, i only found it and i thought it would be a good idea to make our own.
  13. When you are so interested in different designs perhaps its good for you to try cst microwave studio and test your own designs. Not every small change can be tested by our Admin ;-)
  14. I think you don't need a mimo configuration. A simple P2P connection is enough to send a few signals to your equipment. When a cantenna is to big, then perhaps a batwing with simple reflector or a slot dipol (Sputnik) should be the way to go. Another possibility would be a simple biquad. All these can be relatively small and fits in a small plastic container. You then only need two network adapters like the alpha card and attach a good antenna on both. One is a hotspot like on your computer one is connected to this from the telescope. When you can etch pcb's you could also try a pcb biquad. Should be the easiest task to do then. I think 9db gain should be plenty for your application when used on both sides.
  15. If you only want a connection 600m away on a field you could also simply use 2 Cantennas. I made a fast and stable connection with 2 Cantennas over 7 Km without any problem, but there was nothing in between otherwise such ranges are near to not possible.