The ultra-high frequency range is electromagnetic radiation, which is in the spectrum between high TV frequencies and the frequencies of the far infrared region. In English-speaking countries, it is called the microwave spectrum, because the wavelength is very small compared to the broadcast wave.
These intermediate oscillations are located between light radiation and the usual radio spectrum, therefore they possess both the properties of light and radio waves. Like light radiation, they propagate in the form of a beam and are reflected. Such waves are also characteristic of direct propagation and overlapping by all solid objects. Therefore, many radar antennas are enlarged optical elements in the form of mirrors or large lenses.
It should be noted that the frequency range is similar to the radiation of the broadcast sphere and, accordingly, will be generated by the same methods. Microwave radiation consists of the classical theory of radio waves; therefore, it has been successfully used as a means of communication. However, it is very important that it has higher frequencies and due to this it is possible to obtain wider possibilities for transmitting information - this helps to increase communication efficiency. The similarity to light radiation helps to be useful for radar and other applications.
This frequency range is also used in satellite communications to transmit this or that information over long distances. Using special electronic devices, the microwave signal transmitted by ground stations is amplified and relayed. The first such bases appeared back in the 60s of the last century, when they were used to broadcast TV broadcasts.
Based on past experience, special satellites were developed for intercontinental communications. Currently, this ultra-high frequency range helps millions of people watch thousands of channels at a high quality level. Also, it can be used to transmit telephone, television, fax and digital signals.
In the modern world, the ultra-high frequency range is the heat treatment of food products at home and in food processing plants. The energy that is generated by special powerful lamps is concentrated
I am in a small volume, and in this way there is a heat treatment of food. Thanks to these beams, microwave and microwave ovens work silently, they are compact and clean. Such devices are successfully used in kitchens on 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 it was microwave radiation that played a huge role in the study of the electronic properties of various solids . The magnetic field range helps free electrons rotate in a plane that is perpendicular to the direction of this magnetic field. In addition, if microwave radiation is directed to a solid, then it will be strongly absorbed. This phenomenon is cyclotron resonance, and with its help it is possible to measure the effective mass of an electron. Using such measurements, scientists received a lot of valuable information about semiconductors and their electronic properties, as well as about metals and metalloids.