For the antennas I was building, I was using different measurements based on the antenna design material I had been reading. Now I'm a late entry into this wireless stuff and the experts are going a different way than me.
It's time to benchmark. The Shootout My plan was to get relative performance measurements for various designs including mine of homebrew antennas for To do this, I setup a wireless link and changed only the antenna- recording each antennas' performance under identical conditions.
I didn't compare them to a commercial directional antenna as my only one has a male connector and I don't have the right cable to hook it up yet. The contestants were click on each for design specifications.
A commercial Lucent "range extender" omni directional A buddy's Flickenger-design Pringles can Yagi My modified design Pringles can A Flickenger design coffee can waveguide A coffee can waveguide with corrected radiator placement A Hunts In our test, the Flickenger Pringles can did a little better than my modified Pringles design. Both did no better than the Lucent omnidirectional.
Now this is just on raw signal strength, noise rejection due to directivity still makes a directional antenna a better choice for some uses even if there is no gain benefit.
The waveguides all soundly trounced the Pringles can designs. I mean they stomped them into the ground on signal strength - as much as 9 dBm better. Every three dB is a doubling in power - that's three doublings 8x increase! Of the waveguides, the Nalley's "Big Chunk" took top marks. It was followed by the Hunts Pasta Sauce, my modified coffee can, and the Flickenger coffee can in that order. My three waveguide designs, which utilized the correct theoretical spacing, out performed the Flickenger Yuban coffee can handily.
It seems that the design formulas for the waveguide design made a sizeable difference in performance. While folks are calling it a Yagi-Uda style antenna, the design of the driven element in the Pringles can antenna looks like a Waveguide style design. A cantenna a portmanteau blending the words can and antenna is a homemade directional waveguide antennamade out of an open-ended metal can. If you need to extend the distance between your computer and the cantenna, I would recommend using a Qifi extension cable.
Cantennas may be used with other RF devices such as wireless security cameras. Now this is just on raw signal strength, noise rejection due to directivity still makes a directional antenna a better choice for some uses even if there pribgles no gain benefit.
We will be attaching this probe to the female N type connector using our soldering iron. The inner lining of a Pringles can looks metallic, but my tests show it not to be. The tiny design makes them ideal for mobile applications such as wardriving.
Scroll down for the next article. Although some designs are based on a Pringles potato chips can, this tube is too narrow to increase the 2. Even a millimeter off here and your Cantenna may not work as well as it could! It is also worth noting that this measurement is to be taken from the base of the can, not the ridge around the bottom.
The 13 Best Raspberry Pi Projects of I found that making a slightly too small hole which I then widened using a file worked well. This website uses cookies to improve your experience while you navigate through the website. It's available on my free software page ; the archive contains both a Win32 console-mode EXE and full source code. Greg Rehm's calculator fixes the operating frequency at Channel 6 MHz , which is the center channel in the USA, giving the best tradeoff if you want to build a general purpose antenna which works across Channels On the other hand, my calculator lets you tune your antenna for maximum gain on a specific channel; this is handy if you want to use your antenna set up a permanent point to point link.
Let's go through an example using my calculator. The syntax of the program is cantenna diameter centerchannel where diameter is in mm. CB Radio Antique Radio. Guide to homebrew your wifi antenna, using a tin can, in this cases using a pringles can.
This antennas are also known as cantenna and let you spread your wifi signal. Related links We thought you might also be interested in these additional resources we selected from the same category: WLAN antenna 2. Share this resource Share this link with your friends, publish within popular social networks or send it via email.
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