Cantenna Wifi Calculator

How To Build A Tin Can WiFi Antenna For $5. Here’s a calculator to figure it out for you. To use your cantenna, you’ll need a. This wi-fi antenna design is a much simpler DIY project than the pringles cantenna. Basically there are 3 parts to a build-your-own 2.4 Ghz cantenna kit: a pigtail, an N-female connector and a metal coffee can.

Wireless 2.4 GHz Directional Antenna Calculator This requires the use of enabled and capable browsers. This calculator is designed to give experimentation data for construction and use of a wireless range extending antenna. Detailed experimentation guidelines are below the calculator. Enter the diameter of the can and click on Calculate. Unit Number Required Data Entry Can Dish Diameter Inches Calculated Results Cutoff Frequency For TE11 Operation MHz Cutoff Frequency For TM01 Operation MHz Guide Wavelength Size Inches 1/4 Guide Wavelength Size Inches 1/2 Guide Wavelength Size Inches 5/8 Guide Wavelength Size Inches 3/4 Guide Wavelength Size Inches Low Cost Home Brew Waveguide Antenna For 802.11b Wireless Networks And Other 2.4GHz Applications Here is a do it yourself (DIY) project that is an inexpensive way to increase the range of your wireless network or cordless phone. This idea is not new and has many names such as shell cell, cantenna, bazooka antenna, canned antenna and tin can annie.

We like to call it a recycled waveguide antenna. Whatever you call it, it is an interesting project that takes very little time and very little money. Total time should be under an hour and total cost under $10.00, even if you don't have an electronics junk box at home. While this has worked very well for me, there is a certain amount of risk to equipment any time you experiment. We assume no responsibility or liability.

In order to do this, you will need to gather a group of materials needed. Call it scavenging or preparation; it should not take long.

For one recycled dish, you will need: 1. 1 - N-Type Female chassis mount connector.

1 - Copper 12 gauge wire about 2 inches long. Several small nuts and bolts or other mounting hardware for mounting the connector. The N type female chassis mount connector is typically used in radio applications. Hams and electronics hobbyists may have one hiding in the junk box. Most came so that they mount by way of four small screw or nuts and bolts; some had other mounting brackets. We will mount this to the our recycled directional dish. One side is N-female for connecting the cable from your wireless equipment.

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The other side has a small brass stub for attaching the small piece of wire with solder. The can that worked best for me was 3.25 inches in diameter. The other people trying this have used other sizes between 3 inches and 3.75 inches with success. Some tried cans 6 to 7.5 inches in diameter. They also worked. While there is no exact length of the can cylinder, the longer the can, the better the performance but the more directional it is.

The calculator will provide the approximate numbers for actual installation of the connector into the side of the can cylinder. Enter the diameter of the can and click on Calculate. Drill or punch holes in your can to mount the connector the length of the 1/4 wave guide from the closed end of the can. The center conductor that will be soldered to the brass stub cannot ground against the can. The shell of the connector does ground to the can.

Before actually mounting the connector, prepare the 12 gauge wire to be soldered onto the brass stub of the connector. The length from the connector that worked best for me was 1.21 inches. It should be perpendicular to the shell of the cylinder when mounted in the connector and the connector to the can. Hook up your cable from the wireless device external antenna port, point the antenna at another device and test the antenna. This is a linear polarized antenna. The direction it is pointing and the vertical angles are important.

Generally line of sight (LOS) is a good rule. Most all wireless networks have tests for signal strength. Test prior to the project and after the project.

Experiment with angles and directions. Also experiment with can sizes and perhaps positioning of the connector. We would love to hear from you with results. Updated 8.15.11.

This guide provided by: Note that Cantennas are intended for experimenters and individuals interested in building their own antenna. JEFA Tech offers many consumer and commercial grade antennas that are already assembled and ready to use. See our website at How to build your own WaveGuide Antenna (Cantenna) for 802.11b/g WiFi Wireless Networking and other 2.4GHz Applications Building a WaveGuide Antenna, also known as a Cantenna, is a fun and rewarding exercise for those interested in getting more range out of their stock 802.11b/g wireless networking equipment. The concept is fairly simple - a 'standard' radiating antenna transmits and receives RF energy in all directions. If you put the same antenna inside a metal enclosure in the shape of a can, with one end of the can open, then the RF energy is directed out the open end of the can.