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naumoves
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Everything posted by naumoves
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May be! I will try to contact Maarten...
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My design is based on Maarten Baert's recommendations. fr4 1.mm (loss free) and 0.035mm copper (loss free)...
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patch_3.3_stack_3_r_sma.cst
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Hello guys. I am a newbie. Now i'm trying to tune my stack-patch antenna for 3.2-3.5 GHz band in CST. Its current version seems to be able to work good from 3.2 to 4.2 GHz but... VSWR is too high. What could you advise to lower it? Are there any effective methods to do it? - Substrate is lossy FR4. - CLadding - lossy copper 0.035mm.
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Hello Guys! I have a problem with Pagoda3b antenna for 5.5GHz. As you know Pagoda antenna is an open source project of Maarten Baert. He has got a page with dxf and gerber files of it. https://www.maartenbaert.be/quadcopters/antennas/pagoda-antenna/ I've tried to design this antenna for 5.5GHz using dxf files, but central frequency is 5.7GHz What i'm doing wrong? Help please!!! CST file of my design: pagoda_5500_right_9cm.cst
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Thank you!!! I will try this!
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Hello! Good work! Can you share you final cst design?
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I wanted to make this patch compact size... Will these via holes work?
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Yeah... You are right. Can i do it with via holes?
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3.3_stack.cst
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Thank you! I found your design and modified it a bit for different length of feeder and teflon plug.
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Here are screenshots from cst. What do you think?
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I've tried to design something like plate sma connector with the same dimensions and materials. Do you know were i can find pre-built sma connectors for cst with right impedance characteristics?
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I think i won this challenge (with parasitic patches).
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Thanks a lot! I'll try!
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Thank you, Clanon! But i know about VSWR and return loss dependence And a know that parasitic patches can widen the band ... but i don't know how they effect on s11 and how i should design them right
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Sorry, could you explain about new dip at s11? Have you got an example of its image?
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Thank you! Have you got any manual of designing this type of antennas in metall? Or can you share a link to it?
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Thanks a lot! I will try ti figure it out )
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I thought it should be something like this (image below).
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I've designed an antenna for 4.990 GHz and 5.200 GHz band (characteristics screen below) and decided to design the same thing for the 3.2-3.5 GHz band. But in this design, I got stuck trying to widen the band and began searching for methods to widen it. I found information about parasitic patches that could help widen the band, and I tried to design one.
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Sure! Here it is. patch_3.3_3.5.cst
