WiFi Antenna build (2.4GHz Yagi)

Designing and building a Yagi antenna for 2.4GHz WiFi. It is a highly directional antenna that allows you to connect to your WiFi router from much farther away than normal. Overall, this 2.4 GHz Yagi antenna it is a compact build that works well!
For the design of the antenna:
The driven element has a total length of one half wavelength (12.49cm / 2).
The first reflector is 0.125 times the wavelength away from the driven element and each successive director has a gap of 1.1 times the previous gap.
The reflector is 0.2 wavelengths behind the driven element.
Each reflector is 5% shorter than the previous one.
As for gain, it is somewhere between 7 and 9 dB. Different programs have produced different results. My physical build outperformed the antenna that came with the WiFi adapter, and that antenna was rated for 5dB, so the antenna definitely has a gain of more than 5dB.
Why this design? There certainly are others, and there definitely are more effective ones. Most WiFi antennas have very consistent element lengths. This is what I use because of the simulations that I have run in NEC programs and what I have researched about Yagi designs. Feel free to change this design or use it for yourself.
I hope you enjoy the video! Like and subscribe for more!

[@tanmay______]

This is great effort but there are some major flaws in your build of the antenna. Mitigating these issues will vastly improve the performance. 1. The Coax cable is too long, this will negate any benefit you receive from the gain improvement of the yagi. 2. You seem to have used multiple adapters to convert to SMA at the USB adapter- each adapter adds to the total RF loss Also why are you measuring the performance using latency? Your latency is a function of your internet connection, which can vary independent of your antenna and signal strength. You should redo this step with dBm measurements instead. All in all this was a really good effort and I enjoyed watching the video. I’ll stay tuned for hopefully more.

[@ovalwingnut]

That was fun.. it was like I was your neighbor and I could watch but I had to keep my trap shut - it worked for me. Cheers!

[@oscarlper]

The impedance of this dipole is 75ohms and you need 50ohms.

[@johniccia6175]

you certianly deverse the subscribers.

[@irishguy200007]

So I need a 3d printer and a lathe to make this at home??

[@MohsinExperiments]

Looks promising. I should try that. But measurements are very difficult for me. Can you share your antenna measurements?

[@donnypodcast]

Cool video, man. Thanks for making it

[@johnclement254]

It looks like you pointed the directional antenna away from your house. (driven element is next to reflector witch looks like its at the house end)

[@yinglyca1]

if you turn the antenna so the elements are vertical it makes a big diffrence

[@luisreyes1967]

Really?

[@donnypodcast]

I saw a video as well that explained that straight dipoles have linear waves, so having the dipoles parallel to the router's dipoles give you better signal than perpendicular.

[@zazugee]

Funny thing i had same idea to use that same wire bc it's available, but i measured it's thickness to be 2.5mm

[@miscellaneousmarauders5552]

They sell black hot glue... it's cheap.. nice build by the way!

[@xx3868]

Hi, i broke the wire off a single plug on ipad Wifi connector. Question- looking at the wire, it seems to have inner wire and a bit of outer braid. Does this mean the inner wire connects to the very thin pin and the outer connects onto outer round clip that buttons onto socket on board? so theres 2 connections outer and inner ? do i need that outer connection or only the inner pin to make the antenna work or is the braid grounding and it wont work right without? thanks

[@AndrewMurphy8383]

since when dont sdr recive the 2.4 ghz band? @Electric Technic

[@fjs1111]

The reflector, driven element and directors do not appear right if this is for 2.4ghz.

[@RChero1010]

thanks for elaborating

[@fxtrader6647]

Why not a scheme?

[@SaenzFonsi]

are you providing the printer model to the public? and thank you for sharing? and if so where?

[@electrictechnic9740]

Yes! Here's the link: www.thingiverse.com/thing:4688685

[@SaenzFonsi]

@@electrictechnic9740 Thank you sr. Anything I can do for you, if I can, I will help you. also.

[@donnypodcast]

What is the signal wire and what is the ground wire? I don't know much about coax, but I do want to try this project and see how it compares to a cantenna that I've built.

[@rjameslower]

center of coax is signal wire, mesh is groud

[@dimasramadhan8322]

Awesome....can you make another video about the results

[@electrictechnic9740]

Thanks! I tested it out at the end of this video so be sure to check that out. I also tested the antenna around the house and I had improved speeds and range when compared to my laptop's internal antenna and the one that came with the WiFi adapter shown in the video. There were no real metrics here, but when using the internet it was pretty clear that the Yagi I built was faster, especially as I moved farther away from the router.

[@dimasramadhan8322]

@@electrictechnic9740 ty

[@techleaf4094]

Where can I get that sma connector

[@chetnapatel9700]

Sir i needed to make yagi antenna which can receive rf signal up to 6 gigahertz Is it possible?

[@electrictechnic9740]

Yes, you can definitely make a 6 GHz Yagi! But, since that is a rather high frequency, the resulting antenna will be pretty small so it might be a bit difficult to build. Also, make sure you find a good size for the spacing between elements / element lengths so that your signal will resonate. I'd recommend using an online calculator like the one I've linked below to get the dimensions. I hope this helps! Yagi Calculator Link: www.changpuak.ch/electronics/yagi_uda_antenna_DL6WU.php

[@Jimmy-vq6jk]

@@electrictechnic9740 Does the larger Hz make the antenna smaller? For example, 5GHz 6GHz and so on

[@hiyayakk0]

@@Jimmy-vq6jk Yes because the driving element is a half wave length dipole, meaning it is as long as half the wavelength of the desired transmission frequency. As frequency increases, wavelength decreases, so to build an antenna that transmits a higher frequency, the antenna itself will be smaller.

[@moviekurdofficial]

Fa... i made it today and not work am so tired zzzzz😔😕 wy not working for my router TP-LINK 😣💔💔💔

Please do not use this cheap coax, it has a high signal loss and is made for low frequencies under 1 MHz.