Seek to some schematics and circuits of a Wi Fi transmitter.

In summary, the person is looking for schematics and circuits for a WiFi transmitter. There are several resources available, but they may not be the best choice for the person's specific needs.
  • #1
sulymani
36
0
Heyy guys do u know any data base or websites that provide any schematics or circuits of Wi Fi wireless transmitter..

Ur inputs are appreciated..
 
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  • #2
I don't think you can obtain wifi schematics. The good news is its design is no secret. Like other transmitters it consists of a frequency synthesizer, a digital modulator, a mixer, power amplifier, and a bunch of filters. Today, all these components can be embedded in a single chip.
 
  • #3
waht you're right it is no longer secret. somtimes, the person needs insight about something. personally, i am trying to know what exactly i need to build a radio that uses the WiFi mechanism since it goes under the legal medical band in the usa. I ve been lookin up to it online but none has come out. I am sure we have great members here in this great forum who have some insights about my unkown.. MY whole idea is to build a transmitter and reciever..
 
  • #4
You know WiFi operates in 2.4 GHz frequency range. It turns out it's very very difficult to build transmitters and receivers in a high frequency range without access to specialized test equipment.


Check out www.arrl.com, their arrl handbook is a valuable resource to have.
 
  • #5
sulymani said:
waht you're right it is no longer secret. somtimes, the person needs insight about something. personally, i am trying to know what exactly i need to build a radio that uses the WiFi mechanism since it goes under the legal medical band in the usa. I ve been lookin up to it online but none has come out. I am sure we have great members here in this great forum who have some insights about my unkown.. MY whole idea is to build a transmitter and reciever..

For ISM transceivers, several manufacturers make chips or chipsets, and publish schematics, layouts and reference designs. They also generally have evaluation boards that you can purchase and use for testing, etc.

Analog Devices: http://www.analog.com/en/subCat/0,2879,770%255F851%255F0%255F%255F0%255F,00.html

TI: http://focus.ti.com/analog/docs/rfifcomponentshome.tsp?familyId=367&contentType=4&DCMP=TIHomeTracking&HQS=Other+OT+home_p_rf_if

AMI (now part of ON Semiconductor!): http://www.amis.com/products/wireless/index.html

Cypress Wireless USB Solutions: http://www.cypress.com/products/?fid=65&rpn=CYWUSB6935&ref=sch

Keep in mind, though, that the ISM band at 2.4GHz has a lot of existing WiFi traffic, as well as interference from microwave ovens and other sources. Even if you build some good radios, you may experience mediocre performace due to interference. Check out this white paper on my company's website for more information and insight into the problems:

"RF Control Networking, Why Poor Reliability Today Hampers What Could Be a Viable Technology in the Future"
http://www.echelon.com/support/documentation/documents/005-0171A_RF_White_Paper.pdf

.
 
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  • #6
By the way, here's a link to a pretty good Wireless newsletter that may be of general interest to you:

http://enews.penton.com/enews/rfdesign/emerging_wireless_technology/2008_04_22_rfd_ewt_042208/display

.
 
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Related to Seek to some schematics and circuits of a Wi Fi transmitter.

1. How does a Wi-Fi transmitter work?

A Wi-Fi transmitter works by converting digital data into radio waves and transmitting them through an antenna. The radio waves are then received by a Wi-Fi receiver, such as a computer or phone, and converted back into digital data for use.

2. What components are necessary for a Wi-Fi transmitter?

A Wi-Fi transmitter typically consists of a digital signal processor, a radio frequency (RF) transceiver, an antenna, and various supporting components such as amplifiers and filters. The specific components may vary depending on the type and complexity of the Wi-Fi transmitter.

3. How do I read and understand schematics and circuits for a Wi-Fi transmitter?

Reading and understanding schematics and circuits for a Wi-Fi transmitter requires knowledge of electronic components, circuit design, and electrical engineering principles. It is recommended to consult a professional or reference materials for assistance.

4. What are the different types of Wi-Fi transmitters?

There are several types of Wi-Fi transmitters, including single-band and dual-band transmitters, which operate on different frequencies. There are also different classes of Wi-Fi transmitters, such as Class A, B, and C, which have varying power output levels and transmission capabilities.

5. Can I build my own Wi-Fi transmitter?

Building your own Wi-Fi transmitter requires advanced knowledge and skills in electronics and circuit design. It is not recommended for those without proper training and experience, as it can be dangerous and potentially violate regulations. It is best to purchase a pre-made Wi-Fi transmitter from a reputable manufacturer.

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