Sleeve Monopole Cantenna Upgrade...........Gain increase?
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- เผยแพร่เมื่อ 9 ก.พ. 2025
- Can we use the sleeved monopole in a cantenna to increase gain without increasing the length of the can?
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Ex Royal Signals. Love the vid. Thank you.
Happy holidays everyone 🎄🎄🎄🎄🎄🎄
Thank you Andrew, Happy Holidays too! There are not very many views and comments on your videos, but you can't even imagine what a storehouse of knowledge your channel is, which will always live as long as Google servers are alive and until a giant asteroid arrives on Earth)) Thank you very much!
Same to you Andrew!
Excellent way to level up the cantena! I had tested some 5db 5.8ghz omnis (typical design of a coil between a ground tube and the signal element in the rubber ducky antenna) and they perform really well for FPV. I should put them in little green tea leaves cans to make 5.8g cantenas for digital FPV, where circular polarization has no significant advantage in its AFDM.
thank you for new video merry xmass everybody !
Happy holidays!
Merry Christmas and Happy New Year, Andrew!
Happy holidays!
I think the Cisco element get too close to the near field coupling range and is soak up by the can. I agree a larger can possibly the calculated near field limit may provide the right diameter.
I think your spot on
Hi Andrew...Great vids you do...I know that you put a lot of work into them and it’s appreciated!
a while back you experimented with different spacings of the driven element from the back of the cantenna. Can you give us an update from the original list you used a couple of years back. I have a supply of instant coffee tins 97mm D x 210mm L. I would like to try building 2.4 and 5ghz cantennas using the sleeve design. Also, what do you think the optimum length of the can would be if using this as the feed horn for a satellite dish?
Thanks a bunch...Larry
Good looking antenna.
Very interesting findings. I wonder what will happen when you vary the distance between the driven element and the end of the waveguide.
I was just wondering what was better, yagi or monopole and asked on another video then stumbled on this video. My monopole that I created just today for the toilet brush cantenna uses one rp sma to sma converter with a 1mm diameter cut down to 31.5mm sewing needle one end and my small usb wifi card attached to the rp sma end and it seems to work ok. It's not glued in/soldered in permanently yet and seeing this now I may have to look into the better monopole or perhaps try a 3d printed version of the pcb yagi. Happy new year btw!
Interesting. Silly idea... How about having a two stage wave guide. 98mm at the front openning out to 130mm at the back?! Merry Christmas.
Now that is a good idea thanks
Hi Andrew, greetings from Chile!
You've said 82-86mm diameter was the ballpark as diameter for the cantenna, but this sleeve monopole gets to 82mm high. What should be modded, the diameter of the cantenna or the sleeve monopole lenth?
yes I am also confused about the actual size of the can
When the hertzian dipole doesn’t work inside a waveguide. Blade antenna with aerosol can parabola also cannot work ? Because it also changes the hertzian bipole balun characteristics ??
I wish you merry Christmas and happy new year !! Thank you soo much for sharing your knowledge with us !!
great work
which application do you use on your computer for testing ant wifi sig strength?
Hey what is the best long range (2.4ghz ) antenna you ever made ?
Mr. Mcneil: can you do antennas that have to do with crystals?
enjoy your work... merry xmas., new year
Thanks, you too!
If possible, can you help me with the math you used for the monopole antenna and the dimensions you used for the antenna? I love math, so I can figure that stuff out. I’m trying create a canned at for 1420 MHZ for Radio Astronomy. Please advise.
Do you ever see funny names for routers? Mine is called 'Parsonage Green Dogging Society' to give my neighbours a chuckle, nobody knows its mine though ha ha.
LOL for many years my wifi was called MI5 local branch office
In this video, how far is the drilled hole from the base?
From memory 44 to 45mm
How long can this 2.4GHz cantena reach sir?
I also want to ask that
Are you still selling this?
Yep I agree that aluminium takes up too much space.
What would you guess the dbi to be?
The cantenna that I have been selling for years is 14dbi the same size cantenna with this element is 17 dbi.
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You must admit you are doing it wrong!
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