Ultra-high frequency range is electromagnetic radiation that is in the spectrum between high TV frequencies and far infrared frequencies. In English-speaking countries, it is called the microwave spectrum because the wavelength is very short compared to the broadcast wave.
These intermediate vibrations are located between light radiation and the usual radio spectrum, so they have both the properties of light and radio waves. Just like light radiation, they propagate as a beam and are reflected. It is characteristic of such waves to spread in a straight line, and to overlap with all solid objects. Therefore, many radar antennas are enlarged optical elements in the form of mirrors or large lenses.
It is worth noting that the frequency range is similar to the radiation of the broadcasting sphere and, accordingly, will be generated by the same methods. Microwave radiation consists of the classical theory of radio waves, therefore it is successfully used as a means of communication. However, it is very important that it hashigher frequencies and due to this you can get more opportunities for transmitting information - this helps to improve the efficiency of communication. The resemblance to light radiation helps to be useful for radar and other applications.
This frequency range is also used in satellite communications to transmit certain information over long distances. With the help of special electronic devices, the microwave signal, which is transmitted by ground stations, is amplified and retransmitted. The first such bases appeared back in the 60s of the last century, when they were used to broadcast TV broadcasts.
Based on the experience of past years, special satellites have been developed for intercontinental communications. At present, this ultra-high frequency range helps millions of people to watch thousands of channels at a high quality level. It can also transmit telephone, television, fax and digital data.
In the modern world, the ultra-high frequency range is the heat treatment of food at home and in food processing plants. The energy generated by special powerful lamps is concentrated
I am in a small volume, and thus the heat treatment of food takes place. Thanks to such beams, microwaves and microwave ovens operate silently, they are compact and clean. Such devices are successfully used in kitchens in airplanes, in railway dining cars and in vending machines on the streets,where you need to quickly cook some dishes.
It should be noted that microwave radiation played a huge role in the study of the electronic properties of various solids. The range of a magnetic field helps free electrons rotate in a plane that is perpendicular to the direction of that magnetic field. In addition, if microwave radiation is directed to a solid body, then it will be strongly absorbed. This phenomenon is cyclotron resonance, and it can be used to measure the effective mass of an electron. With the help of such measurements, scientists have obtained a lot of valuable information about semiconductors and their electronic properties, as well as about metals and metalloids.
