Welcome to WIFI Antennas
Register now to gain access to all of our features. Once registered and logged in, you will be able to contribute to this site by submitting your own content or replying to existing content. You'll be able to customize your profile, receive reputation points as a reward for submitting content, while also communicating with other members via your own private inbox, plus much more! This message will be removed once you have signed in.
clanon
Members-
Content count
768 -
Joined
-
Last visited
Everything posted by clanon
-
I mean 10 to 25 MILLIMETRES
-
yup...you're close 53 degrees ...but it COULD be "tweaked" and "customized"... what you mean for BT frecuency...? Yes it has a NICE 50 ohms curve.... PS: I ussually CENTER to channel 6 (2437ghz) and up and down to ch1 and 11...YMMV When we are satisfied with the results i'll give you the drawings...(dxf , dwg , cst ,etc) or jpgs with dimensions... over the original drawing
-
NOP...this dipole arrays (doble sided pcb) ALWAYS have the REFLECTOR FAR AWAY (between 10 and 25 centimeters) PS: I don't think it would change a lot if you peel off the sleeve from reflector to panel...
-
for wifi (2,4ghz) ...? (close to 19dbi) it's hard to draw ...with precision...and originally is for 3.5ghz... performance NOT guaranteed...but if you wanna try...
-
reflector at 20 mm...(needs some refining) FR4 1mm thickness
-
ok... i'll give it a go this week... and see how it goes...
-
Sensitivity (how well you LISTEN) and NOT POWER (how much you YELL) is the KEY FACTOR... VSWR (closer to 1 and always under 2.1) is of utmost importance... the TL-WN722 is one of the MOST sensible radios out there (if it has the AR9271 Ver.1.0) I have managed to get connections trough several walls and long distances (with ANY good antenna) the power output...never need more than 100mw...microwaves don't need that much power...because of the high frequencies...(it could be worse with an amp) the 722 (AR9271) should be able to work great with those Yagis... PS: use the SHORTER cable possible and SOLDER direct to antenna...if posible (connectors steal signal)
-
...the thing (in practice is i've pointed HIGHLY DIRECTIONAL antennas to REFLECTIONS from routers i know aren't there and still get a good connection...you lose less than 3db by wall (ussually) 2.4ghz goes trough most materials non-metal... the antennas are very similar in PERFORMANCE.... which one is easier to build and keep closer to specs...for YOU...? i think the YAGIs...are easier...
-
wn722 and ALMOST ALL wifi are 50 ohms standard... long range ...? HOW LONG...? how powerful and sensible each "radio"...? Obstacles or Line of Sight...? 14db at 90% efficiency or more is good for some kilometres without obstacles with a SENSIBLE (-96db or more ) radio (Wn722)...but depends in the router you are connecting to...
-
on "THESE" getting more than 15dbi means using close to 20 directors...and EVEN then gain of yagis kinda HIT a maximum...maybe 16-17 dbi (Reflector AREA increase GAIN more than adding Directors) Use the BIGGER you can...imho
-
what are the specs of the substrate (PCB) you're gonna use...? dielectric constant and thickness...
-
Never over 8 to 9 dbi... (its NOT good) maybe used to feed a dish...
-
Jomy , what material i should use for the COVER...PVC...? (for that logper)...
-
working on IT
-
-
i'll give it a go...this week...
-
Still not 21dbi , but getting there... 24.2020H.28-08-09.pdf
-
-
The original PAPER is on IEEE ( paid log in ) ALL QRTs MiMo seems to use it... trying to simulate it...so far no luck (i think it's PTFE the substrate...but NO DIMENSIONS ...yet
-
Original design from which this antenna was "borrowed"..."stolen"... Expanded to 24 db by MikroTik nice port separation , tho...
-
180 degrees cancellation...at some frequency...?
-
the slit horizontal means the antenna is emitting VERTICAL polarized signal you'll see it as 2 or 3 db of increment on the reception side (vertical dipole) LineOfSight no reflections (reflections might have ANY polarization)
-
5.4 - 5.5 mm from patch to reflector 17 mm ring 11 - 12 mm from edge to feeding point ALL this settings for DEEP DISHES ...f_D 0.25 to 0.3 The DISH HIGHLY INFLUENCE the FEEDER
-
-