The article discusses the process of applying a radio-absorbing coating to the surface of plastic. Vacuum plasma methods make it possible to effectively apply thin films to various surfaces. The main parameters affecting the quality and effectiveness of the properties of the applied coatings are considered.The result of the studied coatings obtained by the vacuum-plasma method showed that a sample coated with aluminum nitride, the transmission coefficient through which has not changed compared to the case of free space, is not shielding, and a sample coated with titanium metal, introducing additional attenuation of the order of 5 dB indicates the presence of absorption.
Keywords: electromagnetic radiation, thin films, application technology, radio-absorbing coating, radiation protection, magnetron.
The report examines the method of processing of oily waste in the power of the microwave radiation. The characteristics of the laboratory complex, its structural scheme and design features. The report includes explanatory drawings illustrating the structure and the temperature sensor based on a fiber-optic Bragg grating.
Keywords: microwave technology; processing; oil sludge; oily waste
Models of wireless communication systems with phase modulation formats and various channel models are considered; The influence of phase fluctuations on the level of errors in communication channels with phase modulation formats is analyzed.
Keywords: modulation, sinal/noise, jitter, the Rayleigh channel, the Rician channel, the simbol and bith errors
In the article a method for analyzing the characteristics of materials is considered, with the possibility of more accurate measurement by typical measuring instruments. Modled computer models of tees with different types of wave propagation are considered. Also talk about the design of the models created and an analysis of the results obtained on the study of the characteristics of materials, with the possibility of more accurate measurement by typical measuring instruments.
Keywords: Microwave, VHF wave, the centimeter wave range, waveguide tee, coaxial tee, resonance method
The article examines the relevance of the study of new coatings, with the possibility of controlling their characteristics. At the beginning of the article, we review the available methods for creating frequency-selective surfaces. Next, the created controlled frequency-selective surfaces are considered. The same is said about the construction of the created surfaces. At the end of the article, an analysis is made of the results obtained on the study of controlled frequency-selective surfaces, a comparison with previously obtained results.
Keywords: control, frequency-selective surface, microwave, radio-absorbing material
The article discusses the analysis of the directivity pattern of a symmetrical vibrator from a different spectrum of a broadband signal, to improve the quality of information transmission. The calculation of the directivity pattern of a symmetrical vibrator has been carried out.
Keywords: field strenght, symmetrical vibrator, beam pattern, broadband signal
In article relevance of conversion dense the bituminous of oil slimes with use of microwave radiation, including using solvents is considered. At the beginning of article the overview of traditional methods of conversion of oil slimes and a benefit of conversion with microwave energy use is shown. Further the principles of conversion of dense bituminous oil slime using microwave technologies are generalized. In the same place it is told about a design of a laboratory complex for processing of dense bituminous oil slime in which experiments on processing were made. Features of use of solvents when processing are unveiled dense the bituminous of oil slimes with use of the microwave oven of energy. At the end of article the analysis of the received results of processing of dense bituminous oil slime, comparison with earlier received results is provided.
Keywords: Microwave oven, dense bitumizirovanny oil slimes, features of processing, design of a laboratory complex, solvents, processing methods, analysis, comparison of results, pilot study