Biquad Yagi Antenna – 2.4 GHz 3D Printer Model

License: CC BY
File formats: stl,skp
Download type: zip
Size:436.3KB

The file 'Biquad Yagi Antenna – 2.4 GHz 3D Printer Model' is (stl,skp) file type, size is 436.3KB.

Summary

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This 2.4 GHz biquad yagi is Inspired by Andrew McNeil's YouTube channel dedicated primarily to antenna design and testing.

Check out the Biquad Yagi Customizer to create an antenna of your own design.

Thanks to Thingerverse user djinc3ption, there is some excellent test data done in an anechoic chamber. Check out the VSWR, Frequency Responce, and 3D propagation graphs, and a link to the raw test data on his make page.

This antenna design uses solid 14 gauge (~1.7mm) copper wire. The 27mm element is the first parasitic element followed by 28mm, 29mm, 30mm, then the 31.5mm driven element and a 34mm reflector at the rear (these are all outside dimensions). I have added cylinders with a closed end for attaching a solid reflector and/or base station mount. I made a reflector out of a piece of thin 56 mm x 110 mm sheet metal with drilled holes for small screws and a larger hole with a rubber grommet to pass the coax cable through. The parasitic elements are spaced 17mm apart with the reflector spaced 19 mm from the driven element. These dimensions are taken directly from Andrew's PCB biquad yagi design. I used a short length of flexible coax cable with an SMA connector to connect the antenna to my USB WiFi adaptor.

Have a look at the video that inspired this design here: Biquad Yagi 2 4GHz and 5 8GHz Upgrade!

110mm_Closed_End_Tube.stl 28.2KB
110mm_Open_End_Tube.stl 18.8KB
27mm_Parasitic_Element.stl 85.4KB
28mm_Parasitic_Element.stl 85.4KB
29mm_Parasitic_Element.stl 85.4KB
30mm_Parasitic_Element.stl 85.4KB
31.5mm_Driven_Element.stl 102.4KB
34mm_Reflector_Element.stl 85.4KB
Biquad_Yagi.skp 881.2KB