Today's publication of the 12th issue minizhurnala from gadgets.masterkit.ruIn my opinion, is very curious and useful to anyone who enjoys a wireless network at home. With whom did not happen annoying disappointment about the lack of communication when in a hurry rushed out of the house to the nearest store, or in the minutes of waiting in the car, when finally meet favorite and out.
So, the first problem, getting up in front of you - a bad signal. And the reason for this can be anything you like! Trees, buildings, the distance from one point to another. The only way in this case - to amplify the signal, for example, an external antenna.
We offer design of a simple, inexpensive and reliable antenna that can be made from virtually pasture trash!
Signal antenna gain of about 8 dB (the received signal is about 10 times stronger). This is as much as give the majority of purchased antennas used for the same purposes. The main requirement - the distance from the resonator as a "copper points" to the reflective layer of CD (reflector) should be 15 mm. But first things first…
Wi-Fi antenna from its packaging for the CD, connect to the receiver signal
Step 1. Making housing
Take the usual package of 25 CDs
Cut off center at a distance of 18 mm axis
Round needle files do slots for mounting the resonator
It should look something like this
Step 2. Making the cavity
The resonator can be made from a piece of copper wire about 25 cm and a diameter of 2.5... 4 mm. In the example used wire diameter of 2.5 mm.
If the wire in isolation, it must be removed
Wire to bend in a square "points" so that the distance between the central axes of the opposite sides of each square was 30... 31 mm
Bend strictly maintaining resolution
Continue to gently bend wire
It turned out here such "glasses". Recheck the size
Solder the ends of the wires and tin place of the future attachment of the coaxial cable
solder cable
Step 3. fastening the cavity
Try on the resonator. Distance from the base at all points should be 16 mm!
Two drops of adhesive glue CD faceup
Pokes a hole in the cable holder and fix the cavity with glue
Dual cavity square will stay at the expense of glue
We fix the back of the cable
Step 4. antenna connection
Connecting show an example wireless access point (Wireless Access Point, WAP) D-Link 900AP +.
Who has experience, and who is sure of himself, he can unsolder the original antenna, and solder a new one. Who does not believe can be connected via an antenna SMA connector.
In this case, it is sure to keep in mind that the "climbing" to the device (simply opening the case, and even more so, there manipulating the soldering iron), all liability for any damage and it fails you take themselves. You must be sure that you know where and how to connect the antenna.
Opening the enclosure. Inside there is a PCMCIA card with an antenna
Caution!!! Due to the high temperature soldering thin Guides can peel off the board
Done. Power Antenna, despite its apparent simplicity, you will be surprised!
Now you can take the Wi-Fi signal, where before it was out of the question!
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No less interesting articles in the new issue of the magazine:
• Battery status on the trip - often a sore point. After all, games or movies not only brighten up leisure time, but also consume the battery. Suitcase-charge (concept), it is designed to recharge your gadgets.
• non-electronic utility. How to make a romantic street lamp in the style of "Country" from the materials at hand for 5 minutes.
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