Homemade Wi-Fi and 3G antennas



When you're installing Wi-Fi router the signal can be taken badly in near rooms. It can be corrected by connectoin of homemade antenna to your router.

We can offer you 4 different consructions of antennas, which are different with construction and application factor. The application factor of antennas depends on the materials used and manufacturing precision. Antenna type "wave channel" (3 elements) and Z-antenna it is 5 ... 6 dB, for a two-element antenna loop (double square) is 10 ... 13 dB, and for the three-element framework (triple square) - 14 ... 15 dB.

For using in diapozones Wi-Fi/3G all types of antennas, which're given here are made of copper wire with diameter 2.3 mm, places of connection are brazed. The antenna should be connected with high-frequency coaxial cable with a characteristic impedance of 50 ohms.

At the free end of the cable is installed the same connector as on the whip antenna Wi-Fi router (GSM-modem).

Select the antenna parameters:

Type:

Diapason:





Calculate the antenna wi-fi / 3g


























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What to read?

Stephen King "11.22.63". WHAT IF you could go back in time and change the course of history? WHAT IF the watershed moment you could change was the JFK assassination? 11.22.63, the date that Kennedy was shot - unless... King takes his protagonist Jake Epping, a high school English teacher from Lisbon Falls, Maine, 2011, on a fascinating journey back to 1958 - from a world of mobile phones and iPods to a new world of Elvis and JFK, of Plymouth Fury cars and Lindy Hopping, of a troubled loner named Lee Harvey Oswald and a beautiful high school librarian named Sadie Dunhill, who becomes the love of Jake's life - a life that transgresses all the normal rules of time.

What to read?

Robert J. Sawyer "Wake". Caitlin Decter is young, pretty, feisty, a mathematics genius - and blind. Still, she can surf the net with the best of them, following its complex paths clearly in her mind. But Caitlin's brain long ago co-opted her primary visual cortex to help her navigate online. So when she receives an implant to restore her sight, instead of seeing reality, the landscape of the World Wide Web explodes into her consciousness, spreading out all around her in a riot of colors and shapes. While exploring this amazing realm, she discovers something - some other - lurking in the background. And it's getting more and more intelligent with each passing day. The first of a spellbinding future history trilogy that charts what will happen when the world's first first, and superior, artificial-intelligence is born in the web.

Ray Bradbury "Fahrenheit 451". The hauntingly prophetic classic novel set in a not-too-distant future where books are burned by a special task force of firemen. Guy Montag is a fireman. His job is to burn books, which are forbidden, being the source of all discord and unhappiness. Even so, Montag is unhappy; there is discord in his marriage. Are books hidden in his house? The Mechanical Hound of the Fire Department, armed with a lethal hypodermic, escorted by helicopters, is ready to track down those dissidents who defy society to preserve and read books...

To find these books, check out the "e-library".