3 Simple Ways to
Share What You Make

With Instructables you can share what you make with the world — and tap into an ever-growing community of creative experts.

PhotosPhotos

Share one or more photos of a project, recipe, or whatever you've made, quickly and easily.

Step by StepStep-By-Step

Share your step-by-step photos with text instructions of what you made so others can do it too!

VideoVideo

Share your how-to video. You'll need your embed code from a video site such as YouTube.

10 $ WIFI 16dBi Super Antenna Pictorial

Step 5Solder the antenna wire

Solder the antenna wire
This is a critical part.

The BNC connector has some insulation around it's central conductor. You must cut this until it is 1mm above the metal plate.

The copper wire must run at a height of 1mm above the plate over a length of 30mm before following the spiral shape. This is very important to tune the antenna's VSWR. A good VSWR basically means that the antenna is capable of 'absorbing' the radio waves coming from the wifi card instead of reflecting them back to the card.

Cutting the isolation of the connector helps you to get the right height when soldering the wire. You can place some tape below the copper wire on the plate to prevent short circuits. Since the wire is quite thick, it easily retains the shape you put it in. It is very important to cut the 1.5mm wire that is too long at the BNC connector. One side of this wire goes up into the spiral, the part sticking out at the other end must be cut close to the central pin of the connector. Leaving a part here will make the VSWR worse.

When the antenna wire is soldered to the connetor, we can push the squares down over the beam. This will hold the beam upright. As a last step, the squares are fixed to the plate with some tape.
« Previous StepDownload PDFView All StepsNext Step »
2 comments
Sep 6, 2011. 6:13 PMmbulan says:
can I used the female RPA connector from the wifi card?I was thinking that it might boost the signal if I will derectly connected the wifi card from the antenna rather than using a cable Thanks
Jun 8, 2008. 10:30 PMgouddabob says:
so.... is there a straightened piece of wire going up the center of the foam in addition to it being wrapped around the outside of the foam?
Oct 2, 2008. 10:13 PMantennas says:
No.
Jun 12, 2008. 2:49 PMartistonhpvs says:
At least I know there isn't copper in centre as it took several viewings before I could half understand all this. the video kinda threw me off being too fast explained and the printing over front. No one understood what the parts meant explained. I went to The Source(wrong place) and same is the Computor Store(?) I assumed had everything. And I believe stock is only avail on demand.

Pro

Get More Out of Instructables

Already have an Account?

close

All Steps Viewing
View all steps of an Instructable on the same page when you're a Pro Member.

Upgrade to Pro today!
45
Followers
4
Author:hanzablast