Panel Antenna 16 db HOW-TO

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Ld%j&2hYz%
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PostPosted: Wed Sep 27, 2006 11:21    Post subject: Panel Antenna 16 db HOW-TO Reply with quote
hello.

Starting this post, coz questions keep on coming up again and again,
so.. decided to make some how to about how to make some powerfull and sharp path antenna


So, we will need blank PCB 24 cm X 24 cm



here we need to make all the 9 vibrators

whats the easiest way...
i'll attach the file in Adobe illustrator and Corel format

with that file you need to go to the nearest place where you can found Cutting Plotter.
And the nearest will be any adwertising making firm (all thous sreaming strings in the shop windows are made with that plotter and sticking tape)

so... you will have a stiker on the paper with clued transparent montage tape above




so... removing the paper carefully

keep the angle sharp!


now we have transp. tape and the sticker, all the clued layer up!


here... no hand shaking.. placing all on


and rolling and stiring - moving all the bulbs and bubbles away


checking


and - to the cuprum solvent


seems like ok


washing and tape removing



reflector - 283 x 283 metall plate distanced at 5 mm from CUPRUM LAYER of our PCB!!

so.. do it like that






now...just solder N-type socket in the center of the circle.... and.. its working..

here's the pic of my link, working with hand made panel antenna



distance is 3.2km



panel24.zip
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GrumpY54gsv4
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PostPosted: Wed Sep 27, 2006 11:37    Post subject: Reply with quote
Twisted Evil
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spumanti
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PostPosted: Wed Sep 27, 2006 13:23    Post subject: Reply with quote
Great guide!

Just a question to clarify:

So you solder the N-type socket to the center of the circle from the back of the PCB, and then connecting the shield of the antenna cable to the metal plate (acting as a reflector?).


What would you suggest to make it weatherproof. Mount it in a plastic box or something?

Thanks for the guide, i'll definately try it out. Smile

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Ld%j&2hYz%
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PostPosted: Wed Sep 27, 2006 13:51    Post subject: Reply with quote
the body of connector is screwed to metal plate and the central pin - to PCB

waterproof.... well i covered PCB with Motip Acrylic paint and same with n-socket - just to prevent leacking of water INTO the cable.

guess... nothing else needed
Seth7
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PostPosted: Wed Sep 27, 2006 13:52    Post subject: Reply with quote
what kind of gain was it.. ??

And wouldnt a biquad be safer to build??

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Ld%j&2hYz%
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PostPosted: Wed Sep 27, 2006 14:01    Post subject: Reply with quote
gain is 16 db - really don't remember how to calculate what will be exactly in dbi - something like 19 dbi or so.

biquad is about 10 dbi

why i recommend exactly this antenna? just becouse thats the method of building very sharp shaped vibrators, somehow... it is "guaranteed result construction"
handyaswan
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PostPosted: Wed Sep 27, 2006 15:54    Post subject: Reply with quote
r u used same antenna model in both side?
Der Wichtel
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PostPosted: Wed Sep 27, 2006 16:11    Post subject: Reply with quote
Instead of using a plotter, you can also print this with a laserprinter on waxed paper. Many magazines and catalogs has this sort of paper.
Then you have to put it on the pcb.
Use an electric iron to transfer the printed picture on your pcb.
after that you can use water to remove the paper.
The printed picture is now on your pcb.

now put it into the acid and after that you can remove the black color with a brush

It's VERY important to use a laser printer or a copier.
inkjets doesn't work.

HF

Wichtel
Seth7
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PostPosted: Wed Sep 27, 2006 16:59    Post subject: Reply with quote
ok .. but i think you should mention what the etching solution could do to a person if it got on them ...
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Ld%j&2hYz%
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PostPosted: Wed Sep 27, 2006 17:39    Post subject: Reply with quote
Der Wichtel wrote:
Instead of using a plotter, you can also print this with a laserprinter on waxed paper. Many magazines and catalogs has this sort of paper.
Then you have to put it on the pcb.
Use an electric iron to transfer the printed picture on your pcb.
after that you can use water to remove the paper.
The printed picture is now on your pcb.

now put it into the acid and after that you can remove the black color with a brush

It's VERY important to use a laser printer or a copier.
inkjets doesn't work.

HF

Wichtel


yeah... i've tried. that was the original method

no luck for me... maybe somewhat could be done another way...

but i think i found the way, that guarantees 100% accuracy with minimum skill.

just follow the instructions.
Ld%j&2hYz%
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PostPosted: Thu Sep 28, 2006 9:11    Post subject: Reply with quote
handyaswan wrote:
r u used same antenna model in both side?


from other side - some "untitled " sector antenna with cisco1310
Der Wichtel
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PostPosted: Thu Sep 28, 2006 11:34    Post subject: Reply with quote
Ld%j&2hYz% wrote:
Der Wichtel wrote:
Instead of using a plotter, you can also print this with a laserprinter on waxed paper. Many magazines and catalogs has this sort of paper.
Then you have to put it on the pcb.
Use an electric iron to transfer the printed picture on your pcb.
after that you can use water to remove the paper.
The printed picture is now on your pcb.

now put it into the acid and after that you can remove the black color with a brush

It's VERY important to use a laser printer or a copier.
inkjets doesn't work.

HF

Wichtel


yeah... i've tried. that was the original method

no luck for me... maybe somewhat could be done another way...

but i think i found the way, that guarantees 100% accuracy with minimum skill.

just follow the instructions.


I'm using the HP laserjet 1300 and it works perfect. The accuracy is about 0.2mm - 0.1mm
Ld%j&2hYz%
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PostPosted: Thu Sep 28, 2006 12:25    Post subject: Reply with quote
its not about printer... the METHOD accuracy is not that stable.
but... i think may be i is something wrong with my hands Embarassed




By_The_Way:

Now I have the same file for FA-20 antenna (All
credits about are for Gunner05)
it is much more powerful, but more difficult to build

in @metal@ looks like






and it works more than prefect
but i want to make it sized one to one and then compare
kstump98
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PostPosted: Fri Sep 29, 2006 7:49    Post subject: Reply with quote
I have a vinyl plotter, so if anyone would like this cut out of vinyl....just contact me. I can pretty much do anything you would want. If you want some logo for your car or anything custom also, just ask. My email is my name below FirstLast@gmail.com .

Kris Stump
Ld%j&2hYz%
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PostPosted: Fri Sep 29, 2006 18:29    Post subject: Reply with quote
and heres the file for FA-20 vibrators (by Gunner05)

http://vbm.lan23.ru/wifi/fa20en.html

here you can find detailed description in english (all credits to ScematicTerrorist and VBM)



FA20 by Gunner05.rar
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