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How to Design a Helical Antenna?
What is helical antenna? A helical antenna is a high-gain directional antenna that can increase the range at which wireless devices can receive a signal. A helical antenna works well for trying to acquire a wireless signal at a distance. If you have a dead spot in your home's wireless network, you can use a helical antenna to increase reception in that area. A helical antenna can be constructed in a few hours using supplies readily available at the local hardware store and some basic hand tools.
Materials & tools you'll need are as follows:
• Male N-type to coaxial converter the wireless card's external antenna connector
• 1/4 ‘‘ by 1 1/2 ‘‘ round head bolt with washer and nut
• N-type connector, female, bulkhead mount with solder tab
• 2 foot length PVC pipe, 1 1/2 ‘‘ internal diameter
• Drill and assorted drill bits from 1/4’’ to 3/4 ‘‘
• Wireless card with external antenna connector
• PVC end cap, 6 ‘‘ internal diameter
• PVC end cap, 1 1/2 ‘‘ internal diameter
• Tape measure
• Pencil
• 15 feet, 14 gauge copper wire
• Two 1 1/4 ‘‘ binder clips
• PVC adhesive
• Hacksaw
• Clean pie tin
• Tin snips
• Coaxial cable
• Soldering iron and solder
Step 1
Mark intervals at 1 3/16’‘ apart starting at the end of the PVC pipe, which will be the antenna's base.
Step 2
Wrap the copper wire around the pipe, 12 times in a clockwise direction, using the marked intervals for spacing guides. Clip the ends of the wire to the pipe with the binder clips to hold it in place while you wrap the pipe. Secure the copper fire to the pipe with a dot of glue per turn and let dry. Remove the binder once the glue has set.
Step 3
Cut a 2’‘ cross-section from one side of the small end cap with the hacksaw. The end cap should look like the letter "C" when done. Removing this section from the end cap creates clearance for the N-type connector.
Step 4
Cut the bottom from the pie tin using tin snips and fit it inside the large end cap. Glue it in place with a couple drops of adhesive.
Step 5
Drill 1/4’’ holes through the center of the large and small end caps.
Step 6
Drill a 5/8’’ hole 1 1/4’’ from the center hole in the large end cap.
Step 7
Place the small end cap inside the larger end cap. Slide the 1/4’’ bolt through both end caps with the threads pointed toward the inside of the antenna. Tighten them with the washer and nut.
Step 8
Place the N-type connector through the 5/8’’ hole with the solder tab facing inside.
Step 9
Connect the base end of the pipe to the small end cap and solder the end of the wire to the N-type connector's solder tab.
Step 10
Attach the wireless card to a computer. Remove the antenna and attach the male N-type to coaxial converter to the wireless card's antenna connector. Connect the female end of the N-type connector of the helical antenna to the male end connected to the wireless card with the coaxial cable.
Published by Yingjie, the manufacturer of wifi antenna, omni antenna, mimo antenna.
Materials & tools you'll need are as follows:
• Male N-type to coaxial converter the wireless card's external antenna connector
• 1/4 ‘‘ by 1 1/2 ‘‘ round head bolt with washer and nut
• N-type connector, female, bulkhead mount with solder tab
• 2 foot length PVC pipe, 1 1/2 ‘‘ internal diameter
• Drill and assorted drill bits from 1/4’’ to 3/4 ‘‘
• Wireless card with external antenna connector
• PVC end cap, 6 ‘‘ internal diameter
• PVC end cap, 1 1/2 ‘‘ internal diameter
• Tape measure
• Pencil
• 15 feet, 14 gauge copper wire
• Two 1 1/4 ‘‘ binder clips
• PVC adhesive
• Hacksaw
• Clean pie tin
• Tin snips
• Coaxial cable
• Soldering iron and solder
Step 1
Mark intervals at 1 3/16’‘ apart starting at the end of the PVC pipe, which will be the antenna's base.
Step 2
Wrap the copper wire around the pipe, 12 times in a clockwise direction, using the marked intervals for spacing guides. Clip the ends of the wire to the pipe with the binder clips to hold it in place while you wrap the pipe. Secure the copper fire to the pipe with a dot of glue per turn and let dry. Remove the binder once the glue has set.
Step 3
Cut a 2’‘ cross-section from one side of the small end cap with the hacksaw. The end cap should look like the letter "C" when done. Removing this section from the end cap creates clearance for the N-type connector.
Step 4
Cut the bottom from the pie tin using tin snips and fit it inside the large end cap. Glue it in place with a couple drops of adhesive.
Step 5
Drill 1/4’’ holes through the center of the large and small end caps.
Step 6
Drill a 5/8’’ hole 1 1/4’’ from the center hole in the large end cap.
Step 7
Place the small end cap inside the larger end cap. Slide the 1/4’’ bolt through both end caps with the threads pointed toward the inside of the antenna. Tighten them with the washer and nut.
Step 8
Place the N-type connector through the 5/8’’ hole with the solder tab facing inside.
Step 9
Connect the base end of the pipe to the small end cap and solder the end of the wire to the N-type connector's solder tab.
Step 10
Attach the wireless card to a computer. Remove the antenna and attach the male N-type to coaxial converter to the wireless card's antenna connector. Connect the female end of the N-type connector of the helical antenna to the male end connected to the wireless card with the coaxial cable.
Published by Yingjie, the manufacturer of wifi antenna, omni antenna, mimo antenna.
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