Why is RF Filtering so Important?

Filtering is one of the most important aspects of telecom networks. But have you ever wondered why it is so important? Filtering helps in removing the noise or interference induced by the surrounding environment. It helps in reducing the interference which in turn improves the performance of the communication system. If no filtering is done, then it can affect the performance of the system in many ways. Below, we have listed some points which will help you to understand how the lack of filtering affects the communication system performance.

• If no filters are used, then desensitization of the radio receiver occurs due to the RF signals in the environment which reduces the communication range. The interference can be caused due to multiple factors. Many sources such as aircraft operating in the area, dense WiFi activity (especially for 2.4 GHz and 5.8 GHz systems), or other communication devices in the area can result in interference. Therefore, it is necessary to reduce the interference level by applying different filters.

• The interference produced by a particular communication system also makes other systems in the network less sensitive which affects the communication range for those systems.

• The interference which is produced by the communication system may also interfere with the reception of GPS signals. This reduces the accuracy of the GPS tracking. In worst scenarios, it may also result in a total loss of receiving the GPS signals.

RF filters block the RF energy which does not lie in the frequency range of the filter. Hence, in this way, it reduces the interference not only in the communication system in which the interference is produced but also reduces it in other systems in which the interference is induced.

Let's understand it from a real-life example. Take the example of a crowded room in which everyone is speaking at the same time. As there is a lot of noise in the room, hence it is quite difficult for you to understand what your companion is saying. In order to hear the other person, you need to raise your voice which increases the noise in the room. If you will move to another room with that person and then continue the conversation; now you can listen to them clearly and will not need to shout.

If you feel like the communication system is not performing well and there is a lot of noise in the system, then consider using a required filter to your design. Filters can be added easily to the communication network. Filters are usually small and lightweight. Moreover, they do not require any electrical power to function. The best part is that they are cost-efficient. Hence, keeping in mind all above-mentioned reasons, you should add filters to your system along with RF amplifiers. As filters help in reducing the noise element, the RF amplifier helps in improving the signal quality. So, by applying these devices to your network, you can improve the quality of the communication. For more information related to communication systems, keep visiting our website.