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MeshCore / Meshtastic YAGI Antenna

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0.2mm layer, 6 walls, 25% infill
0.2mm layer, 6 walls, 25% infill
Designer
13 h
2 plates
5.0(1)

Open in Bambu Studio
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Description

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Powerful 6-element Yagi for Meshtastic & MeshCore in the proven DL6WU-design


The antenna was developed for maximum range while maintaining a compact design and is based on a 20 mm boom with 4 mm aluminum elements. The theoretically calculated antenna gain is approximately 11.1 dBi

 

The Highlight
The complete XIAO nRF52840 & Wio-SX1262 Kit or XIAO ESP32S3 & Wio-SX1262 disappears invisibly directly inside the antenna – including an integrated 18650 battery holder (Attention: Modification needed!). In the "all-inclusive" version, only a USB-C cable is routed outwards for charging. This ensures a particularly clean, portable setup without external enclosures or visible wiring. Alternatively, the electronics can also be installed separately in their own enclosure, allowing the Yagi to be used exclusively as a pure directional antenna

 

The fully rotatable and swiveling holder allows precise alignment and makes the antenna ideal for long-range LoRa, portable applications, and experimental mesh connections

 

Note

 

Hardware parts list

  • XIAO nRF52840 & Wio-SX1262 Kit (Seeedstudio)
  • 18650 Battery
  • 4mm Aluminum Rod
  • Small parts (cables, screws, ...)

     

Important Note

If you want to install the Seeed XIAO module directly in the antenna (boom), the modules (or pin headers) must be "shortened" and then rotated 45 degrees and inserted into the corresponding recess. Apologies to everyone who has already printed the antenna without this important note

  • If you use the Seeed XIAO ESP32S3 & Wio-SX1262 Kit, you must remove both pin headers (clip off or desolder)
    •  

  • If you use the Seeed XIAO nRF52840 & Wio-SX1262 Kit, you must remove the lower socket header (on the Wio-SX1262) and then re-solder the XIAO nRF52840.

    •  

Comment & Rating (7)

(0/1000)

hi, can you give me a Bit more explanation about the Assembly? how to wire the Antenna cable to the dipole etc?
The designer has replied
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Hi,please find attached two more pictures. Sadly I had no time yet for a detailed step-by-step instruction, so let me focus on the important part of your question: How to wire the antenna cable? - The dipole consists of 2x 80 mm aluminium rods (4 mm diameter) with a small gap (4,6mm) between both halves - Use a very short 50 Ohm mini coax cable (I used a ~2 cm IPEX/IPX pigtail). - Solder the center conductor to one dipole half. - Solder the shield/GND braid to the other half. - Keep exposed wire and solder joints as short as possible. - Aluminium is difficult to solder, roughening the surface helps a lot. - I fixed the solder joints and cable with UV glue afterwards for mechanical stability and strain relief. Hope this helps :)
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okay, That explains the dipole Connection. I have wired a sma cable, seems to be a very good antenna. but my Module does Not fit :(
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Replying to @pilo1337 :
Hello @pilo1337, thanks for the feedback on the antenna! Unfortunately, I forgot to document (and I'm very sorry about that / will do so shortly) that depending on the Seeed XIAO module used (S3 or nRF52840), you need to shorten the "legs" or desolder the bottom pin header of the Wio-SX1262. Additionally, the module will only fit into the case at a 45-degree angle.
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Hi! What's the xaio module for? I just need the antenna.
The designer has replied
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Hi, the mentioned Seeed XIAO Boards are optional and only required, if you want to use the antenna in combination with a small LoRa device, which could be used in one of the following Mesh-Networks: https://meshtastic.org or https://meshcore.io Using it "just" as an antenna, is totally fine. Then just make sure to use an antenna cable (feed), which is long enough to fit your needs.
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License

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