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1.665  Articles
1 of 167 pages  |  10  records  |  more records»
A design of a multilayer RADANT -type antenna based on PIN diodes for the X band is presented. The geometry of cells that conforms the grids and the scanning responses in E and H planes of a 3-bit multilayered antenna are obtained. A designed pair of grid... see more

The design of a Horn-RADANT lens with electronic beam scanning for the Ka frequency band is presented. The prototype of the antenna consists of a 2bit Radant lens installed on the aperture of an E-sectorial horn antenna. A pair of grids, with rectangular ... see more

The analysis of methods of synthesis of antennas on the basis of lattice structures is carried out. Electrodynamic model of multilayer polarization-holographic antenna (MP?A) is developed. A matrix method for determining the general coefficients is develo... see more

Microstrip patch antennas offer low profile and low cost fabrication advantages but limited gain and bandwidth. Some methods and techniques have been proposed and developed to improve gain of microstrip antenna, and one of them is multilayer parasitic tec... see more

Microstrip patch antennas offer low profile and low cost fabrication advantages but limited gain and bandwidth. Some methods and techniques have been proposed and developed to improve gain of microstrip antenna, and one of them is multilayer parasitic tec... see more

In the work a technology of tungsten films and two-layer copper-tungsten coatings deposition on stainless steel substrates was developed. The coatings were deposited by magnetron and arc sputtering of materials with condensation of them on the testing sub... see more

Physical disability due to amputation can affect a person's quality of life due to limited movement in performing daily activities. Bionic hands are used to help someone with an amputation disability. This research developed a bionic hand control based on... see more

5G communication technology requires antennas that have high performance. Microstrip antenna is one of the most widely used antennas in telecommunications because of its light mass, small dimensions and easy fabrication. This study designed a rectangular ... see more

The development of 5G technology is expected to result in high data rate communication, low power consumption and larger network capacity. Microstrip antenna is an antenna that can support 5G technology because it can work at high frequencies but has the ... see more

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