scholarly journals О влиянии анизотропной проводимости углекомпозитных материалов на параметры рупорной антенны C-диапазона

2021 ◽  
Vol 91 (4) ◽  
pp. 664
Author(s):  
Н.А. Дугин ◽  
Т.М. Заборонкова ◽  
Г.Р. Беляев ◽  
Е.Н. Мясников
Keyword(s):  
Composite Materials ◽  
High Frequency ◽  
Carbon Composite ◽  
Microwave Devices ◽  
Horn Antennas ◽  
Anisotropic Conductivity ◽  
Binding Substance ◽  
Carbon Composite Materials ◽  
Polarization Characteristics ◽  
Materials Used

The influence of anisotropic conductivity of composite materials used in the manufacture of antennas on the parameters of antenna-feeder microwave devices has been considered. To test experimentally the possibility of such an effect, horn antennas of the L– and C– frequency bands were created from carbon-composite materials of various structures with a graphene-containing epoxy-binding substance. The study of the polarization characteristics of these antennas showed that the presence of anisotropic conductivity of the walls of the waveguide part of horn antennas made of composite materials leads to a change in the parameters of the antennas, which is more noticeable for high –frequency C-band antennas.

scholarly journals Carbon-Based Composite Microwave Antennas

Electronics ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 590 ◽  
Author(s):  
Nikolai A. Dugin ◽  
Tatiana M. Zaboronkova ◽  
Catherine Krafft ◽  
Grigorii R. Belyaev
Keyword(s):  
Composite Materials ◽  
Electromagnetic Waves ◽  
Carbon Composite ◽  
Microwave Antennas ◽  
Horn Antennas ◽  
Radiation Properties ◽  
Wide Range ◽  
Carbon Composite Materials ◽  
5 Ghz ◽  
Carbon Based

Applications of metamaterials to microwave antennas are reviewed over the past decade. The manufacturing of microwave antennas using graphene-containing carbon composite materials was developed and prototypes of dipole and horn antennas made from such materials were created. The radiation properties of the designed antennas and their metal analogs were measured and compared. The standing wave ratios, the radiation patterns and the amplitude-frequency characteristics were analyzed for horn antennas at frequencies 1.6 GHz and 5 GHz and for dipole antennas in the frequency range 0.2–0.6 GHz. The polarization characteristics of the horn antennas were studied. The effects of different carbon composite materials’ structures (fiber or fabric) on the antennas’ parameters were estimated. It is shown that antennas made from graphene-containing composite materials are able to operate efficiently and exhibit almost the same radiation properties as conventional metal antennas of the same geometry and size. However, the carbon-based antennas have much smaller weights and enhanced stability in a wide range of temperatures. In the future, such antennas should replace the conventional ones for many applications, especially for the excitation and reception of electromagnetic waves in space plasmas.

scholarly journals 106 Influence of Radiation Damage on Mechanical Properties of Carbon Composite Materials

2006 ◽  
Vol 2006 (0) ◽  
pp. 11-12
Author(s):  
Ken TOGAWA ◽  
Akira KURUMADA ◽  
Yoshinobu MOTOHASHI ◽  
Hideo WATANABE ◽  
Naoaki YOSHIDA
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Radiation Damage ◽  
Carbon Composite ◽  
Carbon Composite Materials

High-Temperature Oxidation of Carbon-Carbon Composite Materials in Air

MICC 90 ◽  
1991 ◽  
pp. 650-659
Author(s):  
V. Zh. Shemet ◽  
A. P. Pomytkin ◽  
T. G. Protsenko ◽  
P. I. Zoikin ◽  
V. A. Lavrenko
Keyword(s):  
High Temperature ◽  
Composite Materials ◽  
High Temperature Oxidation ◽  
Carbon Composite ◽  
Temperature Oxidation ◽  
Carbon Composite Materials

Bearing capacity of a threaded pair made of spatially reinforced carbon-carbon composite materials at high temperatures

2021 ◽  
pp. 30-34
Author(s):  
Keyword(s):  
Composite Materials ◽  
Bearing Capacity ◽  
High Temperatures ◽  
Limit Load ◽  
Carbon Composite ◽  
Reinforcement Scheme ◽  
Carbon Composite Material ◽  
Carbon Composite Materials ◽  
Threaded Joints ◽  
Joint Limit

The bearing capacity of a threaded pair made of spatially reinforced carbon-carbon composite materials (CCCM) with a 4DL reinforcement scheme in the temperature range from 20 to 2500 °C is experimentally determined. Recommendations are given for the design of CCCM threaded joints for operation at high temperatures. Keywords: carbon-carbon composite material, threaded joint, limit load, bearing capacity, threaded pair, high temperature. [email protected]

Developing the Design of Cones Made of Two-Dimensionally Reinforced Carbon-Carbon Composite Materials (CCCM)

MICC 90 ◽  
1991 ◽  
pp. 781-785
Author(s):  
V. G. Sitalo ◽  
Y. M. Perepelitsin ◽  
V. V. Yeremeyeva ◽  
V. I. Meleshkov ◽  
A. M. Potapov ◽  
...  
Keyword(s):  
Composite Materials ◽  
Carbon Composite ◽  
Carbon Composite Materials
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