 So, hello. Good afternoon. Anyone who decided to join us in our development and MS Distribution UK for this webinar today? I'm Tomasz Wolenski. I'm with our developments and I'm Bushrod here with us from MS Distribution. So, the number of the people who want to be connected to internet is constantly growing and especially now as you may have noticed or may have not noticed, but definitely the number of home workers is increasing. So, the average speed of the internet connection requirement per user is also actually steadily growing over time as of course we use more and more bandwidth. And adding these two developments together you get an exponential growth of the demand for throughput. And this is the kind of challenge the wasps are perfectly geared and suited to solve. The number one challenge though the wasps are facing today is that of the R of noise in the unlicensed bands of course most obviously. And the spectral graphs like these are very common. So, high to very high noise lore that makes the 5 gigahertz wireless network slow and unpredictable making your life as a waste gradually kind of like with diminishing the amount of happiness you know in what you're doing. So, you gradually find yourself giving up on the unlicensed spectra and maybe even actually on the business altogether since the license links may be so much more expensive. And the main issue here are the antenna side loops which are almost never mentioned when talking about antennas surprisingly. So, high gain yes sure everybody knows about that the higher it is the further I can shoot beam width yes of course you want to know how wide of a sector you can get maybe front to back ratio but and not so much about the side loops. So, which are the main cause of the problems with noise and unlicensed with networks. And wasps often do try to mitigate the noise of you know their networks using various shield kits. And if you must use an addition of shielding for an antenna to work properly in the big in the first place and probably it's a good idea to look for a different antenna. And shield kits like these might improve the front to back ratio a little bit which is great right no actually not really except the the rare case of exactly back to back facing antennas front to back ratio is is a useless parameter in terms of noise rejection and the major side loops are not affected by these shields all that the shield does is that it it rearranges the side loops so they point in different direction then without the shield but does they're not suppressed at all as you can see from this comparison so on the left there is the radiate the near field radiation of the of a typical parabolic dish antenna without the shroud you see a lot of a lot of happening there so from right to left there's the main beam and then as you go off that direction there is a lot of minor lobes and those are the side loops you you know very well while on the right side you see the same exact antenna but with the shield which you can see well barely see here at the edge as this as this horizontal line at the edge of the antenna and yes you can and you can see comparing the backs of the antennas like okay the front of a ratio improved congrats on that but the the rest of the side lobes as you can see are are still there sure the directions are different but hell they're still there and some are stronger some are weaker as I said they're just rearranged nothing really happened to them and over the years the radio vendors have developed their hardware to improve the noise situation through gps sync for example which ensures that the ap's within your network transmit and receive at the same time to prevent the self interference which is also a huge part of the problem with the noise in general or on the other hand active filtering which ensures your radio does not see out of channel signals and these improvements are are efficient but also costly and do not really deal with the root cause of the problems with interference but with its consequences which is a wrong approach right I mean it's like trying to remove the smoke but not doing anything with the fire that has caused it therefore the first component on the way to increasing the throughput of a wireless network in unlicensed bands is to mitigate the noise our solution is is different now it deals directly with the source of the noise not its symptoms so prevention is much better than the cure we all know that and you don't want to just suppress the symptoms but remove the root of the problems and our relevance technology is the prevention it provides efficient noise rejection and mitigation of loss within the radio system itself and this is achieved through the horn sectors and twist port ecosystem so the horn sectors deal with the noise efficiently thanks to their zero side lobes radiation pattern and twist port on the other hand is an interface that introduces practically zero loss to the signal delivery from the radio to the antenna the core issue of traditional patch or is sectors are their frequency dependent side lobes so they have the side lobes because of the physics of patch array antennas simple as that and there are these side lobes are are inherent property of the patch arrays as a type of antenna so the side lobes you see on this radiation pattern despite being substantially smaller than the main lobe do decrease the snr radio is working with which cripples overall network throughput and performance r of element horns don't have any side lobes on the one main lobe that covers the area you need without without generating or receiving any noise through side lobes now this effectively isolates your network from the surrounding noise which in in the essence of is the essence of of dealing with noise in unlicensed with networks getting rid of the side lobes equals getting rid of the noise and all kinds of parabolic dish antennas used for a point-to-point or a cpe application also have significant side lobes and thanks to which they they cover vast vast areas beyond the main lobe which is not desired and this also makes them receive the noise from these areas through the side lobes as a result of that is you know it's it's similar as with the patch array sectors it's actually exactly the same so poor and unstable network throughput this is a radiation pattern of our ultra horn a high gain and narrow beam with horn antenna and also ultra horn has only one main lobe and nothing else suppressed noise and maximize throughput so no side lobes equals no problem saying an antenna has or doesn't have side lobes is is quite vague and this is where beam efficiency comes to the rescue it is a measurable variable that quantifies side lobes in other words it it expresses the amount of side lobes an antenna has numerically and because it is measurable it's also it's also that's so reliably so beam efficiency is the ratio of the energy in the main lobe to the total energy an antenna radiates so the maximum beam efficiency you can achieve is 100 percent in which case antenna has zero side lobes because 100 percent of the energy it radiates is in the main lobe the closer to to zero beam efficiency is the the more side lobes an antenna has meaning more problems for your networks here is a radiation pattern of a generic parabolic dish its beam efficiency is 40 percent this means that 40 percent of the power the antenna radiates goes into the main lobe the remaining 60 percent is in the side lobes because everything outside the main lobe is a side lobe in front of a ratio for example only quantifies one side lobe precisely yeah and that's the back lobe but beam efficiency is calculated from full 3d data of the radiation pattern as we're making it the most complete measure of side lobes out there it considers all the side lobes an antenna has the comparison of antennas in terms of side lobe performance becomes extremely simple with beam efficiency the higher it is the better that's it an ultra horn on the left of the slide you can see has beam efficiency of 99 percent it's only 1 percent of the power it radiates is in the side lobes a generic dish on the other hand has beam efficiency of 40 percent so the remaining 60 percent it radiates is in the side lobes and clearly 99 percent is more than 40 percent so ultra horn is way better antenna in terms of noise suppression and to our knowledge is the best antenna on the with market in terms of noise suppression vast majority of antennas used for sectorial coverage and with networks are either patch erase or horns and the patch erase due to the strong and frequency dependent side lobes have beam efficiency values of around 60 percent depending on the manufacturer and the quality of a given design the r-rollman's horns both symmetrical and asymmetrical have beam efficiency between 90 and 95 percent so you can see actually that there's also other horns in this graph too and this is to highlight the fact that having a horn antenna does not automatically mean its beam efficiency is high and the stable and zero side lobe performance is not a given as soon as you have a horn but we do put a lot of effort into optimizing our antennas and the results are clearly showing similarly with the point-to-point antennas the patch erase are again at the bottom of the beam efficiency performance due to the demanding frequency dependent side lobes collecting and transmitting the noise hurting any and every with networks really now dishes are somewhat better in generally the bigger the dish the better the beam efficiency becomes and that's if the antenna is carefully designed and also well manufactured at the same time what is interesting here is the ultra horn with its 99 percent beam efficiency it's only one percent short of perfection if you ever wondered if ultra horn was worth the extra cash compared to a dish of a of equivalent gain you have a very clear answer here with 99 percent beam efficiency it will deliver high quality performance even in the worst noise conditions you can think of let's have a look at our twizport ecosystem because delivering the maximum power from the radio to the antenna is of course also a part of of being able to actually increase the throughput of your wireless networks by removing the coaxial cables and connectors you achieve zero loss system when delivering the signal to the antenna and this is exactly what twizport does since the quality of the coaxial cables can vary widely now depending on from manufacturer to manufacturer it can easily happen that you save as much as half of the radio power by using twizport ecosystem which in turn helps you to reach those distant customers and here is a lost comparison of typical values for coaxial cable and a waveguide the twizport is based on the red line represents the coaxial cable and the black line the the waveguide so the x-axis shows us the frequency and the y-axis so shows the loss in decibels per hundred feet so while waveguide typically has 0.25 gb per hundred feet loss coaxial cable has 100 times bigger loss and this is what we mean by quote unquote practically lossless a waveguide the twizport is based on has 100 times smaller loss than a generic coaxial cable the quality of antenna performance at both polarizations is also part of the overall throughput improvement so let's see how the traditional sector coverage is is different when switching between the polarizations which causes problems for the customers at the edges now on top of that because of the shape of the radiation pattern the the further away the customers are from the center of the sector the worst their experiences where horn antennas on the other hand offer a uniform coverage in the whole sector and the same coverage area for both polarizations so eventually every customer in the sector experiences the same high quality and stable service now anytime you swap a traditional sector for horn you see an increase in throughput and it's the throughput you can rely on and the performance it provides the tradeoff between antenna gain and the snr or significant noise ratio is is an important one to understand especially for those who worry about the lower gain of horns compared to traditional sectors with the patchery antenna sectors that are most common in the wisp industry you get strong side loops with the high gain they provide and because of the ever-present noise the performance you expect is diminished by higher is diminished by as much depending on the on the height of the noise floor caused by the side loops that decreases the snr and this is because again the physics of these antennas with patches you're at the mercy of the side loops and no matter no matter the the the gain of the main lobe and how high it is you are you are depending on the surrounding noise conditions caused by either you through you know self-interference of your own sectors or even worse through the interference which is spread by your competitors in the same area with horns you can easily see huge throughput increase despite their smaller gain compared to the old sector they replace how is that possible where as is clear by now the 5 gigahertz links suffer because of the background noise due to the side lobes of the antennas used the traditional sectors has many side loops now if an antenna has no side loops which is the case with our horns it doesn't collect the noise which decreases the noise floor the radio is working with and the radio cares all cares mainly about the snr and more than the signal strength alone which is why an antenna with lower gain can provide better performance the lack of side lobes lowers the noise floor resulting into higher snr better mcs rates and increased throughput as a result so let's now have a look at a few few scenarios on how how you can actually go about or how you can see the effect of the horns once you once you decide to swap those old sectors for for horn sectors with the traditional sectors your network throughput is very sensitive to its surroundings so whether you or your competitors add new sectors your network always sees it through the side lobes as decreased and unstable throughput and the horn antennas on the other hand only cover and receive the signal from from where they're supposed to and nowhere else because of that this sector is stable and performs at the limit of the maximum radio throughput now when increasing the number of subscribers in a in a sector covered by a traditional patch array antenna you experience a decline of the throughput throughput with every new subscription because the sector is wide and the antenna has strong side lobes the colocation of multiple sectors is very difficult with horns you can divide the sectors into smaller or wider portions and because of the lack of the side lobes each of the collocated sectors performs with zero self interference superb stability and throughput which results into happy customer base and actually a headache free network for you as a as the owner of the business so in a nutshell dividing a a wide and very sensitive sector into more compact units using horns with no side lobes you can collocate as many sectors as you wish while at the same time you can be sure that each of the sectors works at its best leveraging the maximum throughput the radios enable the patch array sectors with their light side lobes always see the closely located sectors resulting into you not being able to use the neighboring channels and to leverage the full spectrum your radio supports and due to the lack of side lobes the horns do not see the neighboring sectors which gives you the ability to fully reuse the previously noisy and unusable channels even in the case the neighboring sectors point away from yours the side lobes are still strong enough to increase the noise floor your your radio sees with resulting which is resulting into into lower throughput you can achieve and horns can help here as well i mean not seeing the neighboring sectors the noise floor is pushed down the snr is improved and you can leverage those higher modulation rates up to up to the capabilities of the radios you use while the traditional sectors with them you don't have a lot of options in terms of the beam width and the side lobes make addition of every new sector a almost a cringing experience because the network performance will gradually decrease with every additional sector the superb collocation and lack of side lobes of horns though makes the growth of your network easy and pain free so you can grow the size of your network virtually indefinitely and this is the core of of scalability and the ability to grow your network throughput get the noise under control with horns and adding new sectors becomes an extremely simple task and here you see a few examples of how many horn sectors you can put on a single tower looks kind of almost unbelievable doesn't it with horns though this is daily reality once you control the amount of noise everything else falls in place and these are the pictures actually provided by by our customers they're they're not staged they're they're real pictures our customers i think these are from the united states have provided us so the our development's technology is the winning formula for unlicensed wisp networks the lack of side lobes of horns ensures really great noise immunity and the lack of coaxial cables and interconnects ensures delivery of maximum power to the antenna and the tool set of 11 different horn antennas with various beam widths and gains enable incredible scalability so now you have 11 different tools that you can really use to optimize the the coverage of your network as you please so you on the other hand have this spare time to focus on the growth of your company instead of having to run around and keep servicing the underperforming links and you know taking the the calls from complaining customers all the time and all these benefits all these benefits come at at no added cost really you can easily do without gps sync if the antennas do not see each other like horns and due to noise suppression you do not need to use the wide channels either or spend additional money for non-effective fixes horns are a complete solution in and of itself so this concludes the the the main amount the main topic of this of this presentation and here i would just highlight a few a few things that people are actually asking most often and one of these questions is where to buy our products and on our webpage there is a there is a stock locator where you know selecting the product you want to buy and your geographic region you can you know it will it will give you the list of distributors that are nearest to you another common question is how far can i go with these horns you're talking about and the answer is is well deserves a lot more than just this simple question because there's a lot more that comes into the equation and you know to be able to answer the question and which is why we have our link calculator so again on our webpage rflments.com you see that that was a tab on the right side circled in green is the is the shortcut to the link calculator where you can set up all the parameters of your link including the cpu device the output power of the ap radio obviously choose any of our antennas and there you go you'll see you'll see the result for example such as the one you you see in the slide yeah where you can you basically see where in what area you can achieve what mcs mcs level which is really a great tool and actually really answers you know provides the most accurate answer to to the question of how far our antennas go sometimes people people contact us with the wish to become a distributor of our products and again starting on our landing page sliding all the way down and clicking on the become a distributor link you'll be brought to this to this to this questionnaire where you fill all the details of of your company and once you once you send it away we will you know review your data and contact you with the with the next steps as soon as possible and we also have rflap.com which is our user forum where i encourage you to to register and we announce we announce all kinds of events where we're taking part in except obviously now in the times of the virus when everyone is at home nevertheless there's also a lot of questions that our users asked and we answered so it's a really great knowledge resource to to search through or if you have a question that it's not is not answered there you you of course can ask your own and it is a really the fastest way to get to the to to the answer yeah because we check the forum daily and and once you ask a question that you can be sure that one of the people from our developments is actually answering it on our youtube channel we we have a playlist called Wisp Traveler where you can see short short videos where we interview wisps like yourselves about how they you know benefited from using our our antennas and we have customers all around the world so you know whichever is closer whichever part of the world is closest to your heart you can you can check the video from that area another channel we have on youtube is called inside wireless and these are even shorter videos which are supposed to shed some light shed light on on the most common concepts of the rf engineering world obviously which are connected to the to the to running a wisp network everything about antennas modulations noise for beam widths all all of that so regardless if you're a if you're an experienced wisp a veteran rf engineer or just starting in this business it is a great resource to either refresh your knowledge or or learn something new right so that concludes the webinar and yeah looking forward to any following webinars all right have a nice day