Комментарии:
Another good video Andrew
ОтветитьWhere can i find best antenna for 2500-2600MHz?
Ответить-7db of gain could be a good thing for me... I need more but for $40 for 2 of these, I'm willing to try them.
Currently I'm at these specs---
RSRP:
-103 dBm
RSRQ:
-18 dBm
SNR:
-3 dB
35dbi……🤣
ОтветитьThe mid 3ghz was where my wimax was tuned to
ОтветитьSorry, why don't you post the dimensions?
Ответитьwhat is the name of that good antenna
ОтветитьThis is really good with a satellite dish . Maybe with a large dish you can get around that gain .
ОтветитьThere is something i cant understand. when you show the results from the network analyzer you cant know precisely the gain of the antena at a certain frequency?
thanks.
"Build as per your local area frequency". My takeaway from this, another, super informative video. Thanks!
Ответить❤️🌹
ОтветитьWhat LTE antenna would you recommend. Looking for a good 4G/5G LTE antenna to hookup to my lte router through tmobile USA.
ОтветитьReally enjoying your tear downs and experimentation. Satisfies my inner nerd.
I suspect this was a case of:
Tech Guy: "I've designed a good, simple 1.8 GHz antenna"
Marketing Guy: No! No! No! We want a wideband antenna with some gain we can boast about. Look, there's no time or budget to change the design. Put two of those in the case and we'll get more of everything and save the extra cost when our Chinese friends build it with the cheapest, crappiest materials they can find.
Can't fault your practical knowledge and experience so I'll criticise your use of terminology instead 😉.
"PCB Board" in the contexts you use it in is a tautology, essentially comes out as "printed circuit board board". "PCB" or "PC Board".
"Stripline" When implemented in a PCB, you can't usually see the signal feed line as it's hidden between two planes, the whole being a three-layer structure. So this antenna is not fed by a stripline.
The subject antenna employed a simple "microstrip" feed comprising a two-layer board with one signal layer and one plane layer. You improved this with extra copper tape grounds to turn the simple microstrip into a "co-planar microstrip".
I've spent too much time using software like Polar creating these things.
next time can you use a better camera???
ОтветитьYou only tested one connector on the analyzer?
ОтветитьAwesome! Can you try the parabolic dish anttena for LTE? The mimo one.
ОтветитьWhat are the specs/type of your directional coupler?
ОтветитьSir i m an old subscriber of u..i meed biquad design for 1800 nd 850 lte bands..i m from a village and need good antenna..i bought alots..but thy dnt work as promised
ОтветитьGreat video.....thanks....:)
ОтветитьThank U Andrew..^_^.Learn more from U
ОтветитьInteresting vid, I am wondering with the design if upper frequencies become horizontally polarised?
ОтветитьThank you for all the videos showing us how you make different antennas and how well they work! But for someone as dumb and lazy as me, I have a request (you can consider it a challenge ;-)). Can you fashion an antenna for 2.35 Ghz out of the garden variety TV coax cable, where I could just take a long piece of coax up to my roof, strip the outer cover, expose the center conductor, twist it (not too complex, because I lack even the skills you'd consider basic) into a suitable antenna and fix the coax to something (most likely a wall) and then get back into the living room and do the same with the other end. This way, no cutting, no soldering, no special impedance matching devices (I guess it would mean coiling the center conductor suitably without any special tools) etc. And we could make the enhanced LTE signal make its way into the living room with just a length of coax and some elbow grease (and your brainwork of course!). I eagerly await the McNeil Antenna! TIA.
Also, I'm in India, so I'm not sure if I can get RG6 or RF 200 cables easily, Satellite TV cable (75 ohm I think) is readily available. This would be for Jio LTE on the following bands :
Band 3 1800MHz fdd, band 5 850MHz fdd, and Band 40 2300MHz TDD. The rooftop antenna would be directional, and the living room antenna would be omnidirectional.
Good job sir .......................................
ОтветитьHi, Andrew! Is it possible to modify an LNB device to work as a wifi cantenna pointing towards a satellite dish?
ОтветитьPerfect DECT Antenna
ОтветитьGreat video thanks I'm glad I didn't get one of these. Now what would be the best antenna to make or buy for the 800MHz range. As that is what Vodafone it using in my area and would be great for my 4g LTE router
ОтветитьNo wonder it sells good. 35dB antennas are pretty hard to find, especially small ones :)
ОтветитьVery interesting video. I do hope you will be looking at some more of these 4G LTE antennas.
ОтветитьInteresting design, I never came across one like this.
What is your black test board thing with the hole grid, did you build it yourself or is it an off the shelf product?
I guess most antennas work best around 1.8GHz simply because it is the most used band in Europe, so they try to make it atleast somewhat decent in that frequency range.
I'm looking forward to see what you can do with the sector antenna elements, I sent you. :)
it might work with the TECHNICS ST-GT1000, A Slim-Jim antenna for 900-2304MHZ might worth trying.
ОтветитьThis is probably the best antenna that we have looked at so far in the 3G 4G range. It is just a shame they have to exaggerate the gain!
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