Flex is expensive… multilayer flex is fuck you expensive.
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Haha. Fair enough. I clearly have no clue.
No worries. I wasn’t giving you details to highlight your ignorance, just to share the context.
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What about using ready made antennas like
Or
The end result would be more expensive and bulky but Dev time and cost would be greatly reduced.
So like, a lot of reasons. The enamel coated copper wire windings rub against each other and create shorts. To protect them from the environment we would need to encapsulate them, and apply adhesive to the back manually.
In this particular instance it would also be very difficult because we need a tuning capacitance, but without a chip. I’ve been doing that by making a two copper plates on the PCB into a tuning capacitor. If I buy a copper wire antenna, I have to solder a surface mount capacitor component to the antenna and it will be flimsy and sketch and just completely not what people expect from a commercially available repeater sticker.
Also based on my understanding it wouldn’t be cheaper.
It would be an ugly expensive mess, but I guess I was seeing this as a better than nothing sorta deal. For instance I have a few low frequency doors at work that won’t pick up my xmagic. If this made it work then its certainly better than nothing.
Or, you could get an flexEM 
A bit easier than by N-repeaters. It was my first implant.
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Sometimes I both love and hate this. Hate because another beautiful pipe dream goes down in flames, Love because I absolutely learn shit Each and Every time.
So, just because it doesn’t get said out loud enough, Thanks @Satur9 . Sometimes the truth smarts, but I (we?) actually appreciate being schooled because it makes us better for it, and keeps us shepherded onto a more viable path. Serously, Thank you.
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Yeah I mean, if you want some for personal use I can help you make one. If you want to buy some wire or antennas and a VNA I can help you work it out yourself, or you can just send me some samples and I’ll tell you what capacitor to use. Several people have made their own repeaters with wire antennas on the forums already (Pilgrim, Hamspiced, Rosco)
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I have a bunch of those adapter pcbs to help with this too. If you want some just lmk.
I have some 125k antenna but didn’t know their inductance. Was a project I started on but never committed to.
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I’ll be honest, I’m terrified of any implants that need a scalpel for installing
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I actually got some from you already thanks! I really just need to bite the bullet and get a VNA to really use it. My blind attempts were off
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I think its just time to get a VNA, I’ll reach out of I run into a wall though 
Once again I’m impressed with the helpfulness of this community, love you all
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This is going to be my new status message at work.
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got a couple - helps heaps with my android!!
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A couple of things
Heres the NFC antenna location.
(Amazing what google will tell you)
I have drawn my best guess
BUT
That case looks like a battery case which may significantly reduce your performance.
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I have the Samsung 23ultra+
my repeater sticker is where you’ve marked with a green circle and works quite well!
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Can I stuck them? Like, put one on the phone and one on the case
Its not a battery case, but its a very thick case
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