How to Build a Wireless Booster Antenna

Written by grahame turner
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How to Build a Wireless Booster Antenna
If the antenna is positioned in the corner of the house, it is also broadcasting outside. (wlan router 04 image by pmphoto from

A wireless router is only as good as its signal, and if you're not getting a strong signal, you might want to give it a boost. This can be done based on how a router broadcasts. It usually sends out the signal in a circle, of about a 100-foot radius. Convert the antenna to broadcast in more of a cone shape, and it will be far more powerful. There is a very simple way to do this.

Skill level:
Moderately Easy

Things you need

  • EZ-12 Windsurfer antenna template (see resources)
  • Glue stick
  • Card stock
  • Tinfoil
  • Scissors or utility knife

Show MoreHide


  1. 1

    Download the antenna booster template from the website in the "Resources" and open it in an image editing program such as "Paint." Enlarge or shrink the template: A larger booster will send the signal farther, but it still needs to be printable.

  2. 2

    Print out the template and glue it to the card stock. Print out one template for each antenna booster you intend to make. Make sure the rectangular part is in one of the corners.

  3. 3

    Unroll a piece of tinfoil that's large enough to cover the roughly rectangular part of the signal booster. Flip the card stock over and line up the tinfoil with the corner of the rectangular back panel. Glue down the tinfoil so it covers that back panel. Leave the glue to dry.

  4. 4

    Cut out all of the parts of the antenna booster, making sure you make the tabs smooth on the curved piece, and cut the slits into the back panel. Also cut along X marks in the centre.

  5. 5

    Assemble the booster. Take the curved piece and insert one of the centre tabs into the top-centre slit on the back panel, on the tinfoil side. Fold that tab up, and glue it in place on the back. Bend the curved piece and insert the opposite tab into the bottom-centre slit and fold the tab. Bend the back panel around, and insert the remaining tabs into the corresponding slots, then fold and glue the piece together. Leave the piece to dry.

  6. 6

    Push the booster onto the antenna. You'll need to pierce the X-marks with the antenna, and push the piece down until it's firmly on the antenna.

  7. 7

    Adjust the booster to maximise your signal. Put the back tinfoil on the back panel to act as a reflector. Face the tinfoil to the area you want to boost. Point the antenna toward the area you most often use your Wi-Fi network.

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