How to Build a High Gain WiFi Antenna

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Building a high gain wireless antenna will provide a strong signal free of much of the interference and signal loss that normally occurs. You will need a few simple household tools, some hardware supplies and a large soup can. You do not need technical skills.

Things You'll Need

  • Newspaper
  • 48-ounce soup can
  • Can opener
  • Paper towel
  • 18-gauge solid copper wire
  • Electric wire
  • Wire cutters
  • Wire strippers
  • Duct tape
  • 2-inch nail
  • Hammer
  • Ruler
  • Cellophane tape
  • Scissors
  • Wi-Fi antenna connector
  • Soldering iron
  • Solder
  • Open one end of the 48-ounce soup can with the can opener. Empty the contents into the kitchen sink and throw out the lid.

  • Wash out the inside of the can with tap water and wipe off the outside with a paper towel. Let the can dry out.

  • Put newspaper down on a table. Place the can down on its side with the open end facing to the left.

  • Place the nail about three-quarters of the way down the side of the can. Hammer the nail all the way through the side, then remove the nail.

  • Cut off 10 inches of the electric wire using the ruler and the scissors. Strip off four inches of insulation from one end of the electric wire using the ruler and the wire strippers. Strip off one inch of the wire lying against the inner sheath using the wire strippers.

  • Strip off two inches of insulation from the other end of the electric wire using the ruler and the wire strippers. Strip off one inch of the wire lying against the inner sheath using the wire strippers.

  • Insert the one-inch end of the electric wire through the hole in the side of the soup can. Stop pushing the wire through the hole when all of the stripped electric wire is inside the can.

  • Apply cellophane tape around the electric wire inside the can to hold the wire in position.

  • Solder the exposed inner sheath of the electric wire to the outside of the can with the soldering iron.

  • Cut a two-inch piece of the 18-gauge solid copper wire using the wire cutters. Solder one end of the copper wire to the end of the stripped electric wire inside the can. Let the solder cool for a minute.

  • Unscrew the bottom off of the Wi-Fi antenna connector. Insert the other end of the copper wire through the hole in the Wi-Fi antenna connector’s bottom.

  • Place the end of the electric wire against the inner clip at the back of the Wi-Fi antenna connector. Solder the end of the electric wire to the inner clip.

  • Solder the inner sheath of the electric wire to the outer clip at the back of the Wi-Fi antenna connector. Let the solder cool for a minute. Screw the bottom back onto the Wi-Fi antenna connector.

  • Plug the Wi-Fi antenna connector from the high gain Wi-Fi antenna you have built into the Wi-Fi antenna port on the device that is going to access Wi-Fi.

Tips & Warnings

  • Use as fine a tip on the soldering iron to keep solder from getting all over the Wi-Fi antenna connector.
  • Adult supervision is needed when using the soldering iron if the person building the antenna is a minor.

References

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