5Ghz Cantenna Calculator Free PCB Design

As mentioned above, the antennas are designed depending up on the frequency of the signals to be transmittedreceived, which means, we cannot use 2.4 GHz antenna in the place of 5 GHz antenna and vice versa.

Wireless communication means transfer of information from one object to another that are not physically connected to each other by means of an electrical conductor.

In 1880, photophone was invented by Alexander Graham Bell and Charles Sumner which uses modulated light beams to send voice signals from one place to another.

This event kick started a chain of events that lead to the discovery of current world wireless technologies like WiFi, Bluetooth etc.

Before going further, lets see how wireless communication looks like.

This electrical signal is sent to antenna and these antennas convert these signals to EM waves and is radiated into the atmosphere.

The receiving antenna captures these signals and is converted back to electrical signal.

These modulated signals are demodulated using demodulation circuit, amplified and is fed to loudspeaker which will convert it to sound.

In the case of a transmitting antenna, the electrical signal from the transmitting circuit is converted to EM waves and is radiated into the atmosphere.

In the case of a receiving antenna, the EM waves in the atmosphere is captured and is converted back to electrical signals for further processing.

The dimensions of various parts of the antenna depend upon the frequency of the EM waves that are being transmitted.

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5Ghz Cantenna Calculator Free PCB Design

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Some times this antennas will be external and can be observed easily, like routers, while some are etched in the PCB of the module itself.

Devices in a WiFi network are connected together wirelessly for the purpose of sharing resources and information.

It can also be used to transfer files and information between devices at a very high speed.

Devices like printers, scanners and other hardwares can be shared easily with out the use of wires hanging around.

Click the below link to learn more about WiFi, Standards, Security and Routers.

What added to the confusion was, the Wi-Fi Alliances use of an advertising slogan, The Standard for Wireless Fidelity, which lead many people to think that Wi-Fi was an abbreviation of Wireless Fidelity.

The Wireless RouterAccess Point converts these data packets to EM waves, radiated out through the transmitting antenna and the antenna in the Client device (mobile device) converts the EM waves back to electrical signals for data processing.