Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Alexey A. Vertiy"'
Publikováno v:
International Journal of Infrared and Millimeter Waves. 21:321-339
Development of millimeter wave and microwave tomography for nondestructive testing and subsurface investigations is suggested. It may be manufactured as well in waveguide modification as in quasioptical one. Description of the main principles of crea
Publikováno v:
International Journal of Infrared and Millimeter Waves. 19:1353-1365
It is considered and offered the waveguide band elimination filter with the working mode H10 that can be used in millimeter waves devices such as up, down- converters, mixer, etc. The characteristics of the filter was calculated by using analogy in e
Publikováno v:
International Journal of Infrared and Millimeter Waves. 18:1967-1989
Time-domain response of a one-mode resonator is investigated by using a complex-exponential representation of the time-domain impulse response. The transient response of a resonator has calculated for a short incident pulse which has rectangular form
Autor:
S. P. Gavrilov, Alexey A. Vertiy
Publikováno v:
International Journal of Infrared and Millimeter Waves. 18:1761-1781
Tomographycal methods of image reconstruction of two-dimensional objects, surfaces or subsurface regions in millimeter wavelengths band are suggested and considered. Experimental images obtained using antennas and waveguiding lines of different types
Autor:
Alexey A. Vertiy, S. P. Gavrilov
Publikováno v:
International Journal of Infrared and Millimeter Waves. 18:1739-1760
Tomographic methods of image reconstruction of two-dimensional cross-sections of volumetric objects in millimeter wavelengths band are suggested and considered. It is shown that in the frequency band under consideration, the images of investigated ob
Publikováno v:
International Journal of Infrared and Millimeter Waves. 18:405-429
In the present paper a time response of a quasi-optical open resonator when exciting it by a pulse signal with a radiofrequency filling has been investigated using an inverse Fourier transformation. The radiofrequency filling corresponds to millimete
Publikováno v:
International Journal of Infrared and Millimeter Waves. 17:1613-1637
In millimeter wave lengths region semiconductor generators, amplifiers, mixers and other solid state UHF devices find a wide application. In our work, we suggested to use aCircular Through-Shaped Resonator for obtaining power combination using active
Publikováno v:
International Journal of Infrared and Millimeter Waves. 17:1285-1299
A new millimeter wave resonant method for determination of absorption cross-section of vegetation stalks is given. The method is developed for study of vegetation stalks absorption cross-section as a function of their moisture content, orkR parameter
Publikováno v:
International Journal of Infrared and Millimeter Waves. 17:543-557
Results of an experimental study and a calculation of the quasi-optical multilayered structure formed by an adjustable dielectric interferometer and a liquid investigated filling its gabs are presented. It is shown that this structure may be used for
Publikováno v:
International Journal of Infrared and Millimeter Waves. 16:271-284
The results of calculation of extinction cross — section for bodies of various shapes and electrical constants placed in open resonator are presented. Theoretical model for such structure was developed. It allowed to calculate transfer ratio, Q-fac