Baked Bean Can Horn Antenna 2 4GHz WiFi
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- เผยแพร่เมื่อ 7 ก.ย. 2024
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The video was longer than I would have liked but I wanted to cover elements (no pun intended) that I have not coved in previous cantenna videos.
Measurements reflector to element
Diameter of can distance of element
74mm = 81mm
80mm = 70mm
82mm = 64mm
84mm = 60mm
86mm = 59mm
90mm = 52mm
95mm = 47mm
100mm = 44mm
There are a lot of instructions on youtube for the modeling of horn antennas. However not a single semi-professional guide on the topic of constructing a horn antenna with the proportions calculated in software. Would you be so kind mister McNeil to provide a video on the topic, including choice of material, bending techniques ...
You inspired me to learn everything I can about electromagnetic fields. And I waiting for a moment when you will make research and video on fractal antennas. Thank you for your work, Andrew.
Hi Andrew,
You do marvelous work on these 2.4 and 5 GHz antennas.
I wrote a program many years ago for least squares curve fitting so I punched in your numbers to see if I could get you an equation for the determination of the distance from the closed end of the can for the driven element depending on the diameter of the can where you talk about it at around 25:00
X is the diameter of the can and Y is the distance from the closed end.
The second degree equation I got is: Y = 0.03616X^2 - 7.74X + 456.2
.
If you try it and, for example, with a 90 mm can, you will get 52.5 mm for the distance from the closed end.
The goodness-of-fit for the quadratic equation is 99.4%
Hope this helps.
Thanks for the info I will take a look at it. I did mention your work in one of my videos a while back when you were trying to lower the VSWR using probes inserted into the cantenna.
I live in a camper fast WiFi is hard to get nowadays without going inside likes a McDonald's or something like that I would love to purchase one of your cantenna's one that has the longest range possible at the fastest speed possible
Welcome back man. We missed you
Pls show us the possible different length of the driven element ....for diffrent diameters
made a few of your 5.8ghz antennas now keep up the good work!
Andrew, please could you post a photo showing the connection between the can and the alfa card I'm struggling to see how its made. Thanks for the interesting videos.
You can say , a signal is a sound , sound reflection and sound cancelation , so the shape of the backplate could be altered also to have less cancelation , probebly find a lot information , at dis antenas , were te dnl issent deadcenter also , but rather to the side , for the best reflecton ( i am not an expert , but i ges it works that way ) we also know wind carry sound , so if you make a drifen element of coper tube whit a slide straw and a vacum part to direct the signal , to reseve , and for sending , a vent to carry the signal , this in mind keeping of the frecuntie your sending , becase of cancelation , mabe could inhans the cignal
Ideal distance for an 155mm can? thanks
sir I'm from Bangladesh and want to know about the length of extension cable and what type of coaxial cable is suitable?
thanks in advance.
Whoo-hoo, number 2 of "the new series". Would love to see a Yagi cantenna! Have you closed the shop website?
Cantenna with horn vs choke . What is the best with parabolic reflector??
Really thanks !!
my experience is the best gain with 90-95 diam can, spacing of element as Andrew says
Glad to see your still working on proJects but I think 2.4 1x is almost irrelevant.
2x2 5.8ghz wif is what I'm working with. I would like to build you a antenna and see if you can outperform the design...
many tnx for the very usefully table of the distance for the driver to the reflector! wonder if you can design a version what has a adjustable feed to slide back and forward in the can to optimise things... would be wonderfull to see the effect.
Please forgive me if this question betrays my ignorance of this topic.
Building a sensitive antenna allows us to receive signals from a distant source, but how do you deal with transmission back to that source? I built a simple bi-quad antenna years ago and I could receive a decent signal from a distance, but I struggled to use the connection as I didn't have enough power to transmit back. I was trying this out of simple curiosity and so when it wasn't working I fixed the issue with a repeater, but I wondered how you would fix this issue if that option was not available. Can you somehow boost the transmission signal?
i think you need to use that sensitive antenna on both side.
Hi! Thanks for your video Andrew, it really helps. I am little new to antenna desing so may I ask what is the name of that needle like thing. I am gladly open for any answers and advice!
Edit: If you looking for the name of that thing like me, you can search as "Straight SMA female Flange with 4 Holes with Gold Plated Pin".
Do you mean the driven element (monopole)
@@andrewmcneil Sorry I forget the say the time. It is around 21:50 . After watching you whole video I search the net and guess it's name is Excitation Monopole maybe? I dont know much.
@@ilgazmore Yes it is a very confusing subject but yes active element, driven element, monopole or probe it is all the same.
@@andrewmcneil Thank you for answering me. Have nice day.
Morning Sir. Excellent stuff. Love your work.
Have you investigated using the original antenna as part of an upgraded antenna? Thank you for the great channel
does anyone know where to get that toilet brush holder he mentioned?
fascinating as ever, Andrew, but please tell us the most powerful antenna you have made, cantenna with dish?
Nice work, but I have to ask you something. At 2.4 GHz is not needed the horn, or not? Horn is used to match the characteristic impedance of the waveguide with the characteristic impedance of the air, but a waveguide for this frequency has a characteristic impedance of 377 Ohms.
Next time, try a Weller soldering gun, instead of a Weller pencil. Chassis work, etc is what the Weller gun was made for.
can you make a parabolic feeder sir? thanks in advance
How do the ripples in the bean can affect the performance and measurements?
How about making this 10x more then connect each one to make one connection
Hi sir I come with another question the connector is doesn't find where I'm belong can I directly solder my TP-link 722 with copper wire or sone coax cable
Do you sell cantenna ?? And will you ship to Canada ?
Your toilet brush holder does not appear to be available in Canada.
Thanks for the video Andrew, could you tell us the name of the flange holding the driven element what solders to the can? cheers.
What calculations are you using to determine the values like 81mm from the back of the can? Also, why is element 30.7mm? Shouldn't it ideally be 31.22 as that is the quarter wavelength?
If you search the channel I have gone into this in more detail building and designing antennas is not as simple as measuring 1/4 wavelength
Hi andrew sir first time I comment great work agin I see all of your videos it's all osm I ask a question i make 19 element yagi but is very poor single but I use a card board instead of plastic class another thing im ask i get want wifi signel from 300 or 350 meters away from my home. The test router is kept in room and connect with simple diople antenna and again very good work i will waiting for your answer plz Sir and you got a new subscriber
Will this kind of antenna work for 433MHz?
Andrew, I have made numerous of your designs and mine. When I test, the signal varies substantially each time i click to retest even though the tests are seconds apart. What do you say?
Cool. Maybe change the title to cantenna design and measurements
I'm using a pipe pointing at my wifi antenna inside laptop. Was wondering how bad this is. Can a unconnected yagi work if positioned on laptop wifi antenna? I've got stacking pipes to work. But it's messy.
I plotted those measurements on a graph in Excel - good luck finding a formula for that :-). Do you have the numbers to make one of these for 5.8? Also did you measure the beam width at all?
So glad you are back, we missed you!! I hope you are fine! :)
how about dual pol horn antenna? are the two elements equidistant from the reflector?
From all the can diameters on your list witch is the best for 2.4?
Are you aware of Ubiquiti antennas, and the range in the 15+ km they can achieve?
Hi Andrew, If you still have the toilet brush from holder, why not send it to the last comment . His tooth brush is obviously not up to the task :)
lol, he didnt mentioned to clean it first hehe i would just buy one at Ikea or so
very cool
Good vídeo cantena antenna
cant wait for the math.
did you make 15 dbi omnidirectional antenna
You did'nt actually mention the driven element length Andrew - assuming it's 31 mm ?
all the best
yes
what about tp-link ant2424b wifi antenna
Good
would placing "directors" be any help ?
no, worse
Andrew, I am all thumbs. Do you sale these things?
Sorry Joe I only sell normal cantennas
i think your domain name is broken :(
The fact that your "antenna" is made from a toilet brush holder is just so appropriate that it's completely mind-boggling! Do you profit somehow by preying on the stupid or is it just enjoyable for you?....... or is it somehow possible that you're actually crazy enough to believe what you're saying?
I heard that if you use a bean can that used to contain spicy baked beans that the signal comes in 10 DB hotter!
But what do I know, I've only got a degree in electronics.
I appreciate your trouble to make these videos but please don’t repeat yourself and waffle all the time. This video could have been made in half the time, so GET to The POINT!!!