How to Optimize the Shape of an Antenna? (EP90)
HTML-код
- Опубликовано: 17 май 2024
- How do you come up with such a weird-shaped antenna? Today I would like to explain an antenna that Landstorfer discovered and later we will set it up and test it.
► PayPal - you can support my channel directly here:
paypal.me/acamediacon
0:00 Antenna Optimum Shape
1:00 Initial Thoughts
2:35 Spatial Form
3:07 Code in CocoaNEC
4:10 V-Angle Optimization
4:47 Landstorfer's Optimization
6:02 Results
7:02 Numerical Optimization Methods
8:03 Insights
*** Books:
amzn.to/3vHHJAu
Interesting Links:
elmag.fel.cvut.cz/sites/defau...
repository.hkust.edu.hk/ir/Re...
ieeexplore.ieee.org/document/...
www.ndsu.edu/pubweb/~braaten/...
www.rohde-stiftung.de/documen...
www.degruyter.com/document/do...
*** We are participating in the Amazon affiliate program. The marked links are so-called affiliate links. If you click on the link and make a purchase via this link, we will receive a commission from your purchase without changing the price. 
Наука
I'll never look at bicycle handlebars the same way again! But seriously, thanks for all the information.
Glad you like it!
Very interesting as always Klaus, looks almost like an exponential function. But it's probably more complicated. Thank you for all your great videos. 😊
Werner, thanks for your comment! I am glad you like it. Stay tuned, there’s a lot more to come on the topic.
What a nicely put video
I am glad you like it. Maybe you can recommend it to friends that are interested?
@@electronics.unmessed That's what I did just now! This channel is a hidden gem.
This is a terrific video! Thank you! Great visualisations as I love evolutionary techniques. I was left wondering why do you have so few views? Maybe the video is framed as a lightweight lecture as opposed to the story? I wish you best of luck, subscribing!
Thank you for your comment and your subscription. I'm very glad about that. My channel is relatively new, it is growing slowly but steadily. I think good content pays off in the long run. The only question is how long it will take for the right people to find them. Maybe you can recommend it to friends that are interested?
The shape looks very much like the shape of a trumpet or trombone bell. I'm not surprised. A wave is a wave, is a wave.
I wonder if bending all of the elements this way for a Yagi-Uda would improve the directional gain at all. Or would it just make a mess of the radiation pattern?
Hi John,
thanks for your comment. That's an interesting question actually! You are really sophisticated!
The inventor optimized a Yagi and a log-periodic antenna successfully as well. You can find it in some books and publications. However, I don't know of any commercial model. Maybe someone out there knows where to buy the antenna?
And before you bend your Yagi antenna, please remember that this type of antenna needs longer rods ;-).
Maybe I can show one of these in a later episode.
@@electronics.unmessed, thanks for the compliment, but I'm hardly sophisticated. Just a guy with a high-school education who has been curious about things for 3/4 of a century. After a while things begin to make sense. I was guessing that one might be able to squeeze a couple dB or so more from a Yagi by doing this, and yes, I note that the elements would need to be over a wavelength long, instead of roughly a half wavelength. But it would be easy to do on 70 cm, and possible on 2 meters. I've already contemplated trying to build a 70 cm beam with colinear elements, but the logistics involved are difficult for me these days.
I'll research this gentleman's work. Thanks for his name. Perhaps there's something posted online I can read.
Yes, exactly, I think you understood everything correctly! I'm currently thinking about setting up such an antenna and making more videos about it if there's interest. Maybe I'll build the simple dipole antenna first and then the Yagi later. So stay tuned!