Handmade Wifi Signal Booster

Silver Post Medal for All Time! 254 Posts
November 5, 2014

finished booster with concave part facing cameraWith just a few supplies that you have laying around the house, you can make a signal booster for your wifi.



  • 1 aluminum can
  • cardboard
  • scissors
  • ruler
  • super glue
  • pen
  • compass


  1. Carefully cut the top off an aluminum can.
  2. cutting top off can
    cutting top off can
  3. Then cut the can open down the side. Then cut off the bottom of the can, making a rectangle.
  4. cutting down side of can
    cutting off bottom
  5. Trim the edges of the can to remove any sharp bits.
  6. trimming edges
    additional edge trimming
    finished aluminum rectangle
  7. Place the can on a piece of cardboard creating a semicircle. Make sure each end of the can reaches the straight edge of the cardboard. Make a mark on the cardboard where each end hits.
  8. placing can in semicircle on cardboard
    marking ends of curved can

  9. Using a ruler, mark the center in between the marks. Use the compass to make a semicircle as wide as the marks on the cardboard.
  10. finding center
    using compass
  11. Cut the semi circle out and use it as a template to make another semicircle of the same size.
  12. cutting out semicircle
    tracing second semicircle
    two matching cardboard parts
  13. Use a pen to make a hole in the center of each semicircle.
  14. finding center (top to bottom) of semicircle
    poking hole through cardboard
    finished cardboard parts
  15. Place one of the semicircles inside the curve of the aluminum can at one end and super glue in place. Hold in place until the glue is dry.
  16. gluing cardboard to can
    gluing cardboard to can

  17. Repeat on the other side. You may want to cut off any excess card board that is sticking out.
  18. letting dry
    trimming off excess cardboard
    finished booster
  19. Place over your wifi antenna and point in the direction you want the wifi signal to go.
  20. booster installed on antenna with convex side facing forward


January 15, 20150 found this helpful

Does the inside or outside of the can face the direction you want the signal to go?

August 15, 20180 found this helpful

The inside, it works like a tv dish

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