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TP-Link CPE210/220 is a 2.4Ghz outdoor access point similar to Ubiquiti NanoStations. There is also a 5GHz Version of this AP, the TP-Link CPE510/520. The device has a built-in 12dBi 2x2 dual-polarized directional MIMO antenna with a beamwidth of 65° (H-Plane) and 35° (E-Plane)

A new small, low-profile and light-weight helical antenna element was designed for 2,1-2,4GHz-band communications. The novelty of the antenna is that its input impedance matching has been improved by adjusting the copper strip matching stub, while its circular polarization performance has been enhanced by changing the parasitic radiation patch loaded in the front of the antenna.

One of the very common types of antennas are loop antennas "triple square". And this applies not only to television, but to various types of wireless communication — Wi-Fi, 3G etc. Of course, frequency UHF 470 — 862 MHz are lower than Wi-Fi 2.4 GHz, but it is also worth considering. Central plastic stand is a holder for the active vibrator contains a passive antenna and the matching Board: in the form of equivalent half-wave cable loops on single sided PCB: The plastic center column with cable and the Central frame — the active vibrator (square side — 126mm): Rear frame reflector (side of the square — 154 mm) with bottom plastic spacer: Front frame — Director (the side of the square — 108 mm) with plastic spacer: Distance between the rear frame and the Central — 78 mm, and between Central and front — 58 mm. All part of used stainless steel wire diameter 4 mm.

Sigma Combo LTE Bandwidth MHz 174-240 / 470-790 Fracarro Elika Antenna 4G LTE filter inserted in the radiator dipole. Frequency range MHz 470-790 Sizes 92 x 82 x 62cm

Magnetoelectric dipole antennas (MEDAs) with broad-band and symmetrical, stable unidirectional radiation pat-terns have been widely investigated and some designs for circular polarization have been reported recently. A MEDA formed by two bowtie patch antennas and two electric dipoles achieved an impedance bandwidth of 41% and a 3-dB AR bandwidth of 33% . A crossed dipole loaded with a magnetoelectric dipole can exhibit an impedance bandwidth of 60% and a 3-dB AR bandwidth of 27% . An antenna composed of two cross-placed magnetoelectric dipoles and a feeding network comprising a wideband 90degrees Schiffman phase shifter achieved a 10-dB return loss bandwidth of 85.7% and a 3-dB AR bandwidth of 61.5% . A MEDA fed by a single Γ-shaped probe attained an impedance bandwidth of 73.3% and a 3-dB AR bandwidth of 47.7% . A dual linearly polarized (LP) MEDA, excited by a power divider and a broadband 90∘ phase shifter, obtained an impedance bandwidth of 90% and a 3-dB AR bandwidth of 82% . A 60 GHz aperture coupled MEDA fed by a transverse slot etched on the broad wall of a section of shorted-end substrate integrated waveguide (SIW) showed an impedance bandwidth of 28.8% and a 3-dB AR bandwidth of 25.9% . However, these MEDA designs mentioned above are all based on single circular polarization.

I still tried to make a simulation with this type of antenna, but it is not so promising,,, I think the directory should be made with concentric copper circles.

,,,the antenna from the previous post is AGATA-2F 4X4 MIMO from Antex with the following characteristics... Operating frequency range, MHz 1700÷2700 Gain, dBi 13.5÷17.0 Bottom width (-3dB), deg 16÷52 Side lobe level not more than, dB -11 Forward / backward ratio not less than, dB 18 Port decoupling at least, dB 30 Input impedance, Ohms 75 SWR in the operating frequency range at the inputs, max. 1.7 Permissible power, W 10 Polarization of received / emitted waves Vertical, Horizontal Mechanical characteristics of the antenna Weight, g 2830 Overall dimensions, mm 400x400x35 Connectors 4хF-female Antenna Material Galvanized steel, Steel Material of the protective box Polycarbonate Dust and moisture protection class IP67 Protective coating Powdered polymer coating Operating temperature range -50℃ to +80℃

,,,YES...send me the CST file...!!! ,,,and a photo of your drone...!!!

,,,yes...!!! ,,,but why do you use only one patch, it should be better 4...???!!! ,,,can I see your drone too...??

,,you want to use this antenna for piloting drones...??

naumoves,,,you can put the cst file of antenna...???

What is a hotspot? Hot spot (from the English. hot spot — land area (e.g., area office, cafe, campus, metro station), where with the help of portable device (laptop, smartphone or PDA), equipped with device of radio access Protocol Wi-Fi, you can obtain access to computing networks (Internet, intranet). So, many cafes do free hotspots to access the Internet with the purpose of attracting visitors and as an extra service. In many cases, the hotspot is commercial, Internet-access (pay by time or volume of transferred data). Fig.1 the principle of the hotspot In many countries the provision of public Internet access at hotspots is regulated by law, for example, in the EU, according to the Union directives the owners of the hotspots are obliged to store basic data on user activity within 12 months. (http://ru.wikipedia.org)Technically, hotspot is a hardware or hardware-software complex, consisting of one or more WiFi access points and control systems (hardware or software controller). Options for building the hotspot a lot, it all depends on the initial conditions and objectives:1. The land on which it is necessary to provide coverage. The presence on this site walls, trees and other impediments to radio wave propagation.2. Standards, types and characteristics of devices, which must ensure the hotspot.3. Quality of performance (minimum and maximum connection speed to the access points (APS) and Internet traffic, connection stability, ping etc.).4. The functionality of the hotspot users (simple connection setup, payment methods, the ability to follow the flow of their funds and their balance, etc., etc.).5. Functionality for administration, monitoring of connections, traffic, user accounts, Troubleshooting, etc.).6. Means to provide a comfortable user experience and security (shapers, session limit, firewall, secure authorization and traffic, the exclusion of unauthorized access, etc.).Next, we consider some variants of the organization of hotspots, from the simplest to the system guest access to the corporate level. The simplest hotspot.The simplest version of hotspot is an access point or router home level, connected to the Internet.Advantages:1. Low cost.2. Easy to install.Disadvantages:1. Small coverage and its low quality.2. Minimal (or even absent) monitoring and administration.3. Minimal (or even absent) possibility of traffic control.All this actually leads to the provision of services "as is" (as is). The owner of the hotspot could not provide a quality user experience cannot control them and actually influence anything.For example, one user running a torrent client, can "eat" the entire width of the Internet channel, or overload, etc., thus effectively making the use of other users is impossible. Hotspot entry-level (option 1)If you already have a computer that can be used as a controller, you can also do low cost. For example, ustanovili free (or shareware) software for organizations of hotspot and Rustaveli TD on the territory.Attention! When choosing the TD needs to consider whether this model controller. Or, alternatively, whether there is alternative firmware such support.Advantages:1. The relatively low cost.2. The functionality and ease of use depend on the type of selected equipment and the controller.3. Monitoring and control (effectiveness is the same).Disadvantages:1. To operate the hotspot needed continuously on the computer of the controller.2. Most management software hotspot are running on different versions of Linux, so you may need a separate computer (dedicated server).3. The difficulty in installing and configuring. Hotspot entry-level (version 2)If no computer or you want to make a hotspot a separate independent system, then it makes sense to think about using a hardware controller, for example, Mikrotik.RouterOS L4 license supports up to 200 active hotspot user, up to 500 L5, and L6 unlimited.The choice of a particular model of the controller depends on the intended load (the total speed of the external channel, the number of simultaneously active users, rates, etc.). Fig.2 the administrative Interface of the Mikrotik hotspot on the base. Advantages:1. Low cost.2. Works offline (does not require a computer, only for administration).3. The basic functionality of the hotspot out of the box, the ability to adapt.4. Good monitoring and control.5. Extensibility of the coating simply by adding new TD (almost all manufacturers and models).6. Easy to install and configure (compared to other systems).7. The opportunity to work with the most professional billing.Disadvantages:1. The need for a clear planning of the load, because if you don't have the performance of selected controller, modernization is possible only by replacement with a more efficient model.2. Out of the box only basic functionality (for a small hotspot of this, however, is quite enough). Increased functionality is performed by a script that requires some knowledge in the it field or bringing in experts from the outside.Hotspot entry-level (option 3) with an external controller.Some sites offer services using their controller to control your hotspot. In this case, you have the least problems with installation and maintenance of the hotspot, but will have to share the profits. In addition, the functionality and usability of the hotspot is determined by the list of services provided by the owner controller.In this option you will need a TD that supports this controller (for example, with alternative firmware DD-WRT). The hotspot average (corporate) level.The system is guest access will suffice for a large hotel (or hotel chain), cafes/restaurants, etc. Many major manufacturers offer their own solutions for guest access, varying equipment and capabilities. As an example of such a system can result in the company UniFi from Ubiquiti. Fig.3 management Interface UniFi Advantages:1. A wide range of functionality out of the box, allowing you to build on the same hardware, internal (corporate) network and guest access.2. Good monitoring and control.3. Extensibility of the coating by adding a new TD.4. The flexibility to work with clients.5. The relative ease of installation and configuration.Disadvantages:1. Relatively high cost, as supported by only "special" equipment.2. Functionality out of the box enough for the vast majority of cases, but if something important (for you) is not enough, it is a serious problem..

naumoves,,,try this... N-P245 mufa.cst

Why don't you search on this forum, you will find...!!!???

,,,this is real impedance...

Clanon,try to update the program....https://en.taiwebs.com/windows/download-cst-studio-suite-10756.html

,,yes, but this is completely different..!! ,,,that's how it should be...

,,,but you can't put 4 directors on one patch...the original antenna has 4 patches...!!!

,,,where did you get this type of stack-patch antenna,,,??? ,,,it seems that it does not have a good impedance on a certain bandwidth and the directivity gain is not good...!!! ,,,the VSWR is not good either...!!!

,,,can you post the CST file here...???

,,,maybe this would be a choice...

,,,papagayor, let's see what this can do... ,, with two ports it is not very convenient..

A cantenna ( blending the words can and antenna) is a homemade directional waveguide antenna, made out of an open-ended metal can. Cantennas are typically used to increase the range of (or discover) wi-fi networks. Although some designs are based on a can, this tube is too narrow to increase the 2.4 GHz signal by a useful amount, although at 5 GHz it would be about the right size. However, a cantenna can be made from various cans or tubes of an appropriate diameter. Some designs include a pole mount to elevate the cantenna.

,,,another form of the Batwing antenna with good results...!!!