Cantenna Wifi Calculator

This calculator is designed to give experimentation data for construction and use of a. This idea is not new and has many names such as shell cell, cantenna,.

Lincomatic's Homebrew WiFi Antennas Lincomatic's Homebrew (DIY) WiFi Antennas One of my latest obsessions is building DIY homebrew WiFi antennas. Heinz Beans Cantenna This is the first antenna I built. It's the ubiquitous circular waveguide 'cantenna': I obtained my can by going to my local 99 Cents Only store and buying a can of Heinz beans, which happened to be desired 3.25' diameter. The resultant methane gas produced from consuming the beans was used to power my soldering iron afterwards.

I will not go into the construction details, as they are very well documented on. Finding his online cantenna calculator rather intriguing, I set out to find the mathematical roots to his calculations. The result is my own, which I wrote in in C++, based on formulae obtained from the Antenna Book.

It's available on my; the archive contains both a Win32 console-mode EXE and full source code. In addition, Adam Lesser has kindly supplied a binary for OS-X. Greg Rehm's calculator fixes the operating frequency at Channel 6 (2437MHz), 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 1-11. 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.

Introduction The BiQuad antenna is fairly easy to build and provides reliable gain and it has very forgiving design. You can make quite a big margin of error in the construction and still get 10-11dBi gain. Hence here is the Double BiQuad Antenna and BiQuad Antenna calculators for handmade antenna based on average data. However I highly recommend to follow my instructions, which are based on computer antenna simulation software 4nec2, to maximize performance. Is listed currently available instructions, simulated with computer software, for handmade 13-14dBi Double BiQuad external antenna. Note: The dBi scale is logarithmic in base 10, where +3 dBi is a doubling in gain! An increase in gain of +1 dBi is equivalent to an increase of 26% and +2 dBi is equivalent to an increase of 60%.

This means that the increase in +1dBi is a big deal. Double BiQuad Antenna Calculator. ( Very important to choose proper cable! the longer the cable length, the more signal loss you'll have through the cable. Long cable will defeat the purpose of the antenna.

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