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Flat Panel WIFI - RF Cafe Forums
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| distantcoder
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Post subject: Flat Panel WIFI
Posted: Sun Dec 11, 2005 12:52 am
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Joined: Sun Dec 11, 2005
12:39 am
Posts: 1 |
I was looking for a simple PCB flat panel design
that I could make at home does anyone know of any
blueprints or exacting measurements or layouts for
a 2.4 ghz wifi? I would really appreciate
any links or pointers on making my own Thanks,
I have done some searching but seeing as I am new
to this I am having a hard time. I have build
my own biquads and cantennas but I really want to
try a high gain flat panel
Thank you distantcoder
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wsemajb |
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Post subject:
Posted: Thu Jan 26, 2006 6:24 pm
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Joined: Wed Nov 02, 2005
1:50 pm
Posts: 11 |
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distancoder,
I did search this topic but missed
yours. I've just asked the same question.
I'm
astonished that this info isn't plastered all over
the web. I can't find anything either. Have you
had any luck yet?
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sag |
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Post subject:
Posted: Fri Apr 07, 2006 9:52 am
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Joined: Wed Apr 05, 2006
3:34 pm
Posts: 6 |
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what gain woul'd you like to get from you antenna?
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fred47 |
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Post subject: 2.4 GHz flat panel antenna
Posted: Fri Apr 07, 2006 8:39 pm
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Joined: Wed Feb 22, 2006
3:51 pm
Posts: 104 |
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Hi!
One of the reasons you don't find such
designs plastered all over the internet is that
the common PCB material (G-10 or equivalent) is
quite lossy at 2.4 GHz, and the good stuff (like
Rogers makes) is both a bit hard for a hobbyist
to get his hands on, and a bit spendy.
There
are designs for colinear antennas on the web.
Good Luck!
Fred
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nubbage |
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Post subject: Flat Panel WiFi
Posted: Thu Apr 13, 2006 7:13 am
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Joined: Fri Feb 17, 2006
12:07 pm
Posts: 218
Location: London UK
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Two gold mines for patch antennas for 2.4GHz are
IEEE Microwave Theory and Techniques Antennas &
Propagation, and the IEE Antennas and Propagation.
A good technical library will have copies.
For antenna designs fairly near 2.4GHz you can
always scale the dimensions.
You can also
forget about the dielectric material and air-mount
strips of copper sheet on plastic pillars, and the
bandwidth performance actually improves with air
compared to dielectric support.
Another thought
to avoid expensive low-loss substrates if you are
cooking one at home, polystyrene sheet is readily
available, as it is used to create some packaging.
Ferero Rochet chocolate spheres come packaged in
quite a good material. Google for self-adhesive
copper foil for the elements, and a good tech library
for the publications mentioned above.
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bill sacks |
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Post subject:
Posted: Sun May 14, 2006 4:25 am
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Joined: Sun May 14, 2006
4:20 am
Posts: 1 |
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A quick test of a material for use as a 2.4 GHz
subsrate is to just put in a microwave oven-- if
the styrofoam melts or gets warm, it will be a lossy
sustrate material.
bill
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archer |
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Post subject:
Posted: Thu Oct 19, 2006 1:00 pm
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Joined: Wed Aug 09, 2006
10:49 am
Posts: 4
Location: Northern Illinois
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Bill,
The first person I have heard this from
was a low observable electromag engineer. You are
only the second.
_________________
Tony
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archer |
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Post subject:
Posted: Thu Oct 19, 2006 5:06 pm
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Joined: Wed Aug 09, 2006
10:49 am
Posts: 4
Location: Northern Illinois
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I should also add that, when I advise people of
this, they look at me funny.
_________________
Tony
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nubbage |
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Post subject:
Posted: Tue Oct 31, 2006 8:05 am
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Joined: Fri Feb 17, 2006
12:07 pm
Posts: 218
Location: London UK
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I found a very good design in Microwave Journal
Jan 2000
Wen-Shan Chen "A Novel Broadband
Design of a Printed Rectangular Slot Antenna for
Wireless Applications"
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Posted 11/12/2012
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