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dumser2
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Posts posted by dumser2
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2 hours ago, Admin said:When you increase the frequency range, you must delete the old frequency range and install the new one."
Not sure how and where to remove them?
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Help me choose a 450MHz omnidirectional, compact FR4 or collinear antenna.
1 person likes this -
40 minutes ago, Admin said:,,,точка живлення там не розташована...!!!!
Can you correct me because I don't quite understand what you're talking about?
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Triple Feed Patch antenna
https://www.maartenbaert.be/quadcopters/antennas/triple-feed-patch-antenna/
3 people like this -
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1 hour ago, Admin said:I think you should put an SMA connector instead of the discrete port - that might be the mistake....!!!
Can you help install them correctly?
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I made the Pagoda antenna from the dfx file, I'll give it to you in the article. But it doesn't work correctly. Where did I make a mistake or is it impossible to do it on FR4
https://www.maartenbaert.be/quadcopters/antennas/triple-feed-patch-antenna/
2 people like this -
15 hours ago, Docgi said:@AmateurRadist If you look at the first picture you send "ground" is look unassigned so there is no reflecting plane in that simulation, assign PEC boundry.
Also as you said your design file didn't have S11 plot so I put it myself when I simulate it.
To lower VSWR I think you should focus on feeding line and patch sizes. Maybe you could cut feeding point of patches like in below picture. But I think feelind line is more important in your design
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On 30.11.2024 at 8:11 PM, Admin said:Here it...
Made in a hurry but it works, it could be improved but...
Help me set it to 2.35Mhz
1 person likes this -
Unfortunately, I already gave the antenna away.
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On 23.11.2024 at 6:54 PM, Admin said:,,,all sizes...!!!
You can share your file on 2.4MHz frequency
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What needs to be changed to make it work at 2350MHz?
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6 minutes ago, Admin said:,,,122 mm diameter.../// I don"t think so...!!! ///maybe 40,5mm iameter...!!!
Yes, I didn't calculate the diameter correctly. I took the wavelength as the diameter, but I probably need the circumference.
1 person likes this -
6 minutes ago, Admin said:,,,який діаметр кілець і пластини...!!!
The diameter of the rings is 122mm, the platinum is 122mm, but it is FR4 without metallization. Required frequency 2.35GHz
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6 minutes ago, Admin said:And what...isn't it good...????
S1.1 is out of range
in Modeling antennas
Posted
Look