Wifi - How It Works

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In this activity, from the Institution of Engineering and Technology (IET), students read about a Wi-Fi system (often called WLAN — wireless local area network) and produce a diagram to show how the ‘wireless’ part is, by necessity, short-range. Mostly, the signal is carried to the internet by cables.

This activity is part of a series of resources exploring body centric communications, which have abundant applications in personal healthcare, smart homes, personal entertainment, identification systems, space exploration and military. The topic investigates the driving technology behind body centric communications, explores current health applications of these devices, possibilities for the future and the ethical issues surrounding these advancements.

This resource is supported by the videos Body Centric Communications and Engineering for the greater good - Engineers Without Borders.

Related resources can be found in the Body Centric Communications collection.

Curriculum links include:
Waves and communications,wavelength, frequency, electromagnetic radiation, penetration, absorption, infrared, microwaves, RF (radio frequency).

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