How WiFi Works – Know About Wireless Internet

Today in this blog, we are going to learn about how WiFi works and wireless Internet, which is the world’s most popular technology for the internet service provider to connect wirelessly to any smart device at home or offices. 

Some Internet users in the world want to know how WiFi works and what wireless technology works behind it, which helps to connect any smart device wirelessly.

So now, in this blog, we will learn a little about wireless internet and also how WiFi works. Internet service providers connect Ethernet cables to routers to provide the wireless Internet to customers. But today in this blog, I don’t want to talk too much about wireless routers.

So now, we will learn more about wireless internet which is mostly found in-home, railway station or offices and they are used to connect smartphones, laptops, desktops, printers etc. In most cases, Internet service providers provide wireless Internet service by connecting to a WiFi router via a traditional cable. Due to which, users are able to connect their smart devices wirelessly.

Few ISPs in India provide wireless home service without using a cable at home. Of these, there are mobile internet data service providers, such as Airtel Broadband, Tikona Broadband, BSNL Broadband, etc.. Still, some provide wireless service at a specific location using various wireless technologies.

However, the WiFi network is generally not used for this purpose as it only works over relatively short distances. So let’s know how WiFi works. Before knowing how WiFi works, we should understand about WiFi network (Wireless Internet).

About WiFI Network

But this is some connection between the two, i.e. Router and WiFi because you get a WiFi signal from a Router itself. We will talk a little bit about the router focus on the real concept of a WiFi network and will also know what is WiFi in this article.

Now there are many rare types of the wireless network. Wireless is used to hook up the keyboard and mouse to your computer. It can be via some Bluetooth, and it is one of the common types of wireless in that context.

But what I’m talking about is wireless for the Internet. Now WiFi card is built into all laptops these days. And now WiFi card has also been made in almost all desktop computers on which I am writing this article.

For example, a wireless or WiFi card is built into the Router. It is different from Bluetooth for mouse and keyboard and other accessories. Nevertheless, router WiFi is used primarily with computers, but currently, each smartphone also uses such wireless devices. 

For example, a cell phone connection uses a cellular network. It can use WiFi not only for phone calls but also for receiving over the Internet. This WiFi card is not only on a computer, but it also happens in some devices like smartphones, printers, smart TVs and many other devices.

There is no need to go into more technical details on how this works. We need to know the basic concept of how WiFi works. Because it also has an antenna inside. It sends it out through the antenna wirelessly through radio signals. It just like a portable mobile phone. 

Only a different frequency, And as long as the handset (Portable mobile) is within the signal’s range, it allows you to talk and move without long cords. We used to do such things in the old days of a few years ago, and basically, it is still very much used.

How WiFi Works

A router that wirelessly connects computers, laptops and smartphones using radio waves instead of cables. WiFi networks use radiofrequency technology where there is no physical wired connection between the sender and the receiver.

When Radio waves and the electric current is supplied to an antenna, an electromagnetic field is created which is then capable of propagating through space.

It has a very low-power radio transmitter and receiver, with a maximum range of about up to thirty to ninety mitres, depending on what objects and other electrical equipment nearby.

Nowadays, most laptops come with a built-in wireless card. The Router becomes a free access point to the Internet, which we know as the hotspot, creating an invisible “cloud” for wireless connectivity around, wherever users can connect their device without a wire.

You have a router, and its connection is usually connected in a DSL, cable or an optical fibre. It makes the wireless signal through the Router to be sent through the radio signal to the receiver. It is usually a card made on a computer, on a laptop, or sometimes in some of the new desktop computers.

But basically, this wireless card or WiFi card is like a handset (portable mobile). It allows you to take a signal and have a conversation or do some two-way communication. I mean it is straightforward if you are familiar with a portable phone, now you understand how does WiFi work.


It is still a little mysterious to most people. But I think it should make sense for you now. And so a portable phone operates over a particular range because the signal reaches a WiFi signal with only one thing.

You may be in some areas where the signal should be found, but if something is blocked, the signal breaks or becomes a bit stagnant. The same goes with portable phones or wired, wireless WiFi connections;

For example, I can choose one of my neighbour’s WiFi signals; Sometimes, it only shows a little because I’m right on the edge of the message. 


But when you stop and think it is very miraculous, it gives us the power to send a massive number of data through the air. You are reading this article right now in the middle of a field that would be a bit strange.


WiFi is electromagnetic radiation which is visible light radio waves X-rays and gamma-rays. But the good news is that unlike gamma rays, WiFi network allows you to check email, send an email, or do a lot of other tasks in an incredible part of the home.

Electromagnetic radiation is in the form of energy that surrounds us, such as radio waves, macro waves, gamma rays, sunlight, X-rays, etc. 

Some of these rays are visible, and some are invisible. Visible rays from it are a small part of the electromagnetic spectrum, covering a wide range of electromagnetic wavelengths.

So different types of electromagnetic radiation are very similar. But what makes them different is the length of their wavelength. Radio waves are as long as these short waves such as X-rays that look like it is visible light. 

WiFi electromagnetic spectrum is a radio frequency band – this wavelength of light is 12.5 centimetres and its frequency range from 2.4 GHz to 5 GHz. So here are the most common Radio signals are used for communication including data, voice and entertainment media. 

About WiFi Radio Waves

Radio waves are a form of electromagnetic radiation. All radio waves from gamma rays to visible light are included in electromagnetic radiation.

How WiFi Works - Know About Wireless Internet

Computer, Laptop / Smartphone / etc. The radio waves use a wireless adapter to translate data into signals and transmit that signal using an antenna. 

Those radio waves move out of the antenna and are received by the wireless Router. That wireless Router then converts radio waves into data, and then sends that data to the Internet using a physical connection to get computer, laptop/smartphone / etc.

It rotates very little. So a router that emits a signal pulse at a distance of about usually thirty to ninety meters, and it is just a WiFi signal. We look WiFi signals in a city, it seems like a vast field, and if we look at all once, all the electromagnetic radiation can be seen at once.

WiFi waves are relatively big, and it tends to be waves on the nanoscale that have the potential to cause damage. Still, none in the room next door well as WiFi travels out from its source. It’s affected by the objects in encounters be that solid wood or other WiFi signals. 

Also, if lots around you. If there are WiFi signals, parts of your messages may be delayed, which may take longer for your pages to load.

Types of WiFi

There are several types of WiFi versions available in the market since from 1997 to 2020.

  1. 802. 11a
  2. 802. 11b
  3. 802. 11g
  4. 802. 11n
  5. 802. 11 ac
  6. WiFi 6, or 802. 11ax

The new WiFi router version depends on data transfer speed and signals strength distance. Each WiFi version has its data speed, signal source, and price. The new version of WiFi router comes with better features, data transfer speed and hardware than the first version.


The Router has an internal wireless radio wave that transmits signals in the 2.4 GHz to 5 GHz range. When wireless radio is turned off, you can use an Ethernet cable for a LAN connection with the Router. To turn off the radio signal, press the on/off button for two seconds and repeat the same process to turn it on.

Hope you have got an idea about how WiFi works. If you liked this blog, then definitely share it with friends.

Thank you very much…

About jasmine

I love reading and writing about technology and gadgets. I aim to provide people with the right information about technology and many types of gadgets through writing.

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