I just learned about antennas and I bought a parabolic antenna, now I'm starting to make my own because I've become interested in the last antenna. I watched your video. I really like all your videos.👍 Done subscribed Love from malaysia
@kavindugilshan2 жыл бұрын
Hello what kind of elements are going to use with parabolic reflector ?? If it is LTE it should support MIMO also . I am also looking for DIY idea for parabolic feeder.
@moradhraki19668 ай бұрын
How can I know Katherine Anthena's measurements, please?
@JeriyantBaramcity Жыл бұрын
hello master this antenna is very popular in my country, this antenna is widely made and modified into a parabolic antenna that catches 4G LTE signals on the 1800, 2100, 2300 mhz frequencies
@kayboku72813 жыл бұрын
Want! Need! Must have! So unusual! Ive been buying and testing all sorts of antennas lately, and reading books old and new, and havnt seen anything remotely like this!
@gammaleader963 жыл бұрын
Nice video. what I noticed is that the fiberglass shell makes quite a difference in the frequency response, so they might be pretty similar when assembled. Another interesting point is that they used 35 and 75 ohm coax to build transmission line transformers for matching. (the orange and purple coax are 35 ohm if I recall correctly) So I guess the impedance of the elements might be around 70 ohm since it would be pretty easy to transform from 50 to 70 ohm with 35 ohm coax.
@MrPhil6043 жыл бұрын
Always enjoyable to watch. I’d guess you are looking at an antenna for 3G UMTS (WCDMA) band 1, smaller one possibly additional bandwidth to combine GSM 1800. Don’t see the combiner much any more, usually each dipole is driven from a different TX path for MIMO purposes.
@scienteer35623 жыл бұрын
Those larger square loops are actually the resisting elements. Not reflectors or ground. The small antenna elements are actually used to 'capacitivly' couple the signal to the elements across the slot in the sides. You see this often on Vivaldi antennas. This style of feed gives the designer a few more degrees of freedom to make get the best impedance match. I suspect these are circularly polarised with a 90degree hybrid in the feed somewhere.
@andrewmcneil3 жыл бұрын
Nice Thanks for the info
@scienteer35623 жыл бұрын
@@andrewmcneil looking more closely at that combiner, it's just a basic tee split, so nothing to create CP in there. The split feed might just be there to act as a form of balun.
@andrewmcneil3 жыл бұрын
@@scienteer3562 Could be, I want to remove on from the casing and take some measurements
@szmery2985 Жыл бұрын
It is not a circularly polarised antenna. It is a antenna with linear polarization fed from two separate sources, -45° and +45° for a "MIMO" . Cross Dipole
@AlonsoGonzalez Жыл бұрын
Thanks for posting mate.. learned a lot. I work as network driver in denmark. ;-)
@knsnetworkservice2242 жыл бұрын
I like this kind antena sectoral GSM really works properly in my place
@Khfwoszthchehiy3 жыл бұрын
That's some cool looking camping stove
@andrewmcneil3 жыл бұрын
Ha ha I knew it reminded me of something Rey
@michaelstarks70293 жыл бұрын
This could be an idea for a new video series. Andrew can call it "will it radiate?" The idea would be to hook up random metal objects to see what kind of frequency response they give!
@melalakyuk21042 жыл бұрын
Kalau ada terjemahan bahasa indonesia.mungkin lebih banyak lagi subscriber
@justvallier88182 жыл бұрын
iya om. lengkap banget disini
@melalakyuk21042 жыл бұрын
Hahahaha
@aurthorthing74033 жыл бұрын
WOW! That's some pretty cool black magic pixie spakles.
@XXXXXX-dy5fs3 жыл бұрын
I remember seeing a patent for this one or one very much like it.
@urbanimage3 жыл бұрын
Interesting stuff indeed.
@ahmedtito57882 жыл бұрын
Please give us a chart of the head measurements of this antenna for local manufacture of 4G and 3G
@gdewitastras.t.14263 жыл бұрын
Hello sir.. i want to ask something about this katherine antenna. I have a big one and the small part, i want to build 4g lte antenna, i confuse to joint all the cable. On the big one have 4 cable (@1 cable have core and ground), on the small part have 2 cable. My big question: how to build 1 antena but use both of my antenna katherine part?
@monkunderground42442 жыл бұрын
Спасибо, очень интересно и познавательно.
@DAVIDGREGORYKERR3 жыл бұрын
You have a friend at Hutchison Telecoms Wampooah?
@andrewmcneil3 жыл бұрын
Thanks David
@tariqalhilali30475 ай бұрын
Is it possible to make this antenna?
@Moment_Captured2 жыл бұрын
What does the polarization look like?
@ahmedtito57882 жыл бұрын
Brother, I am from Algeria, and we do not have this antenna. Can you give me the head measurements of this antenna?
@mohdkhairilhamid32802 жыл бұрын
Hi mate and good day.. could you please do a tutorial for 850mhz katherin antenna... Thank you..
@sleekbook2 жыл бұрын
Antenna caterin sedang viral sekarang di malaysia indonesia and the philippines.
@FirstLast-jf9on3 жыл бұрын
Hey andrew, can you teach us how to make that antenna.?
@andrewmcneil3 жыл бұрын
I will once I totally understand the design myself
@FirstLast-jf9on3 жыл бұрын
@@andrewmcneil thank Andrew. I like watching your vids of how you make good antennas.
@wowchannel16263 жыл бұрын
@@andrewmcneil can't wait to see the outcome
@nyxlaskar3 жыл бұрын
thanks bro
@jimmynaz34462 жыл бұрын
hello sir.. can u share the dimension of the antenna by detail? thankyou
@sulitoff-road45212 жыл бұрын
where to buy such an antenna?? please include a shopee link or something else, thank you 🙏🙏
@sleekbook2 жыл бұрын
katherin antenna or hybrid antenna
@MyName-bo6ed2 жыл бұрын
Does it have continuity?
@techalex199211 ай бұрын
Can i use one of these to receive 4g signal heheh. 😐
@andrewmcneil11 ай бұрын
yes
@serambimasstudios25932 жыл бұрын
Where to buy?
@hanssim28082 жыл бұрын
Hai andrew,can u give Katherin Antenna size
@rheynaldyrama99782 ай бұрын
This antenna + and ground connected, Is it safe ?
@andrewmcneil2 ай бұрын
Why????
@rheynaldyrama99782 ай бұрын
@@andrewmcneil Is it okay if short
@andrewmcneil2 ай бұрын
@@rheynaldyrama9978 Yes
@dhanjaylaudencia26912 жыл бұрын
How can i make this?
@srkkatti58352 жыл бұрын
Sir plz provide dimensions of this antenna in pdf file
@nakub9812 Жыл бұрын
Can you get me new link this liink dead
@pidkarpe3 жыл бұрын
alien tech. ?
@gordslater3 жыл бұрын
Origami tech
@siaresreygambito73532 жыл бұрын
Can i have that one sir?
@bolokurowo37242 жыл бұрын
sedang trending di negri +62
@abidalwi74482 жыл бұрын
Sdah pny ?
@bolokurowo37242 жыл бұрын
@@abidalwi7448 lagi otewe
@dawedase2493 жыл бұрын
please sir send me that 2 kind of size for free thank much...
@bpm743 жыл бұрын
The antenna is called a WBME - Wide Band Magneto-Electric dipole , check this link (it's in Russian) but it looks like an explanation to the antenna 3g-aerial.biz/wbme
@andrewmcneil3 жыл бұрын
No it’s defiantly German en.wikipedia.org/wiki/Kathrein
@ahmedtito57882 жыл бұрын
Please give us a chart of the head measurements of this antenna for local manufacture of 4G and 3G
@ahmedtito57882 жыл бұрын
Please give us a chart of the head measurements of this antenna for local manufacture of 4G and 3G