3/28/2023 0 Comments Wifi antenneThe position of the router and the connected antennas plays an important role in covering the signal strength in different rooms. 2.1 How is the Wi-Fi router best positioned? In the following chapter we will discuss the alignment of antennas and why devices are often equipped with more than one antenna. In the meantime, it has been fundamentally explained how an antenna works. The side mounted to the wall, in the diagram on the left, is strongly attenuated. This antenna has clear directional characteristics and, when installed correctly, radiates towards, for example, offices or the hall. 4: Radiation pattern, left: vertical alignment, right: horizontal alignmentįigure 4 shows the antenna diagram of a wall antenna. In Unternehmen mit großen Büros oder Hallen kann die Wahl einer anderen Antennenform große Vorteile mit sich bringen.įig. In companies with large offices or halls, the choice of a different antenna shape can bring great advantages. The housing of antennas is often designed more modern by the manufacturer, but the content remains an omnidirectional radiator. In domestic use, simple omnidirectional radiators are used in most cases. Due to the directivity, the gain of the radiation is higher, accordingly the range in this direction is also higher. In addition, unused areas are not or only very slightly irradiated. The antenna is designed to radiate field lines with good directivity. 1.3 Why do Wi-Fi antennas have different shapes?Īntennas are manufactured in different shapes in order to specifically influence the radiation pattern. The position of the exit and re-entry depends on the polarity of the antenna. In a rod antenna, the field lines exit one side of the antenna and re-enter the other end of the antenna, as shown in Figure 2. With vertical alignment, the antenna is viewed from the side. The wavelength can be calculated using the following formula:įig. The frequency is used to calculate the wavelength, which is decisive for the antenna length. Wi-Fi communicates among others in the frequency range of 2.4 GHz or 5 GHz, an FM radio in the frequency range of 87.6 MHz – 108 MHz. But why is this the case? Why do communication systems not use the same antenna? The reason is that different frequencies are assigned to different services and systems. For example, a Wi-Fi antenna is shorter than the antenna of a stationary radio. These vary in length depending on the system. In wireless communication systems, antennas are used for both the transmitter and the receiver. 1.1 Why are antennas of different lengths? WiFi 6e will use Mu-MIMO on all three bands instead of on the previously approved 5 GHz band.Why are different radio systems equipped with differently constructed and long antennas? And what difference does it actually make if one or more antennas can be connected to a Wi-Fi router? Why is this extension necessary or is it perhaps just a question of better design? In the following chapter, the topic “antenna technology” is explained in more detail. WiFi 6E adds a third frequency band: 5.9125 – 7.125 GHz in addition to the 2400 – 2485 MHz and 5.1 – 5.8 GHz bands. WiFi 6 adds MU-MIMO at 5 GHz, this allows up to 8 data streams to service 1 to 8 users directly and many more through time division techniques. WiFi6 & WiFi6E build on the current WiFi 5 Standard known as IEEE 802.11ac. These new rules will usher in WiFi 6e, the next generation of WiFi and will allow more users to see higher data rates. In April 2020, the FCC adopted rules to make 1,200 Megahertz of spectrum in the 6 GHz band (5.925 – 7.125 GHz) available for unlicensed use. At Mobile Mark, we understand that different antennas are needed to satisfy these evolving networks. Our MIMO (multiple input-multipleoutput) antennas support the newest WiFi systems, 802.11n and 802.11ac, whether they require two, three or six inputs.įrom WLAN in warehouses to WiFi Hotspots in coffee houses to real-time video feeds from police vehicles, the nature of Commercial WiFi has changed over the years. With a full range of site, mobile and device antennas, Mobile Mark antenna solutions support all WiFi networks, whether they are 2.4 GHz only, 5 GHz only or dual-band 2.4 & 5 GHz.
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