By Vince Samios
There are many devices that operate using microwave RF filters to aid in the flow of data. There are various things that we all rely on today that are transmitted using these filters and without them we would find normal life to be very different. These filters aid in transmission of both high and low frequency waves. The filters accept the waves and turn them into things we can recognize. Some of those things are radio waves that you hear coming through your stereo, television broadcasts and many wireless devices like your own cell phones.
You will also find that these filters are commonly used in ways you may not expect. These filters are sometimes building blocks for more complex systems. These systems work to separate multiple frequency bands, but more than they work as duplexers and diplexers to combine multiple frequency bands as well.
You might be surprised to realize too that, when you think of Wi-Fi, you’re thinking of microwave RF because that is what Wi-Fi really is. Knowing that you can understand what an important role this plays in your daily life. Radio and television broadcasts can now also be done with Wi-Fi so the importance of these filters in only increasing as time goes on and technology approves.
Microwave RF filters are also a combination of various types of resonators. This means that companies that create resonators are also able to create the filters necessary to manage radio and television broadcasts. The quality of the resonator usually determines though what kind of selectivity the filtering device can achieve. The better the quality of resonator being used to create the filtering the better a system you will have on your hands. This means that a high quality system is the more frequency bands the filter can combine or separate.
The various kind of filters are called lumped-element LC-filters, planar-filters, coaxial-filters, cavity-filters, dielectric filters and electroacoustic filters. Each filter meets and a need and serve a very specific purpose. For instance, a lumped-element LC filter is very compact so it can be used in many locations, particularly when space is a concern. Planar filters provides a compromise between size and the peRFormance of the filters. Coaxial filters offer a high quality filter, which is what many companies want and need. Cavity filters are still commonly used, but dielectric filters are a newer technology that are an improvement in quality. Electroacoustic filters are not quite as common and are lower quality.
Regardless of the type of solution you use, you’ll find pretty similar results in that you’ll be able to filter the necessary data you are after. The only difference is how far from the source you’ll be able to translate the waves using the various types of filters.
Internet Marketing Consultant Vince Samios writes about Microwave RF