Estimation of the Parameters of Focused Beams at Short Distances for Antennas of Diffraction Radiation at the Millimeter-Wave Band

Sergiy Provalov; Yuriy Sydorenko; Sergiy Shylo

doi:doi:10.11648/j.ajea.20221002.11

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Estimation of the Parameters of Focused Beams at Short Distances for Antennas of Diffraction Radiation at the Millimeter-Wave Band

Sergiy Provalov, Yuriy Sydorenko, Sergiy Shylo

Published in American Journal of Electromagnetics and Applications (Volume 10, Issue 2)

Received: 20 November 2022 Accepted: 17 January 2023 Published: 30 January 2023

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Abstract

The article considers the results of experimental studies of the parameters of focused beams formed in W-band planar antennas of diffraction radiation using an axial dielectric lens and at focal lengths from tens of centimeters to several meters. The focusing of the beam was carried out utilizing a set of replaceable dielectric lenses with a calculated focusing distance of 1,5 m, 3 m, and 6 m. The focusing mode was also considered with two lenses installed in series, jointly providing focusing of the beam at a distance of about 0,8 m. Evaluation of the operating parameters of an electrodynamic system consisting of a planar dielectric waveguide and a planar diffraction grating both located near an inhomogeneity in the form of a dielectric layer with a variable profile (thickness), which is an axial dielectric lens, was the main aim of the researches, as well as the effect of this inhomogeneity on the quality of the formed focused beams under conditions of changes in the distance (depth of field) in the imaging mode, when the beam is inflected from the lens axis, as well as when the operating frequency changes over a wide range of values. In the course of the research, it was found that dielectric lenses with an axial profile made of high-quality polystyrene or PTFE provide the parameters of focusing antenna beams for the developed antennas of diffraction radiation following theoretical calculations, both in the focusing depth and in the mode of beam inflection from the lens axis up to  9 while changing the frequency in the range of 84100 GHz. In this case, the level of the measured side lobes in the generated beams practically did not differ from the similar values obtained for these antennas during their measurement in the open space (in the far-field zone). At a focal length of 75 cm, the transverse dimension of the focused beam was estimated as 35 mm, which approximately corresponds to the radiation wavelength and demonstrates a high focusing quality approaching the theoretically possible diffraction limit and also indicates a weak influence of the inhomogeneity in the form of a dielectric lens on the electrodynamics properties of the antenna of diffraction radiation.

Published in	American Journal of Electromagnetics and Applications (Volume 10, Issue 2)
DOI	10.11648/j.ajea.20221002.11
Page(s)	16-24
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2023. Published by Science Publishing Group

Keywords

Millimeter Wavelength Antenna, Antenna of Diffraction Radiation, Antenna Focusing Beam, Antenna Radiation Pattern, Millimeter Wave Measurements

References

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APA Style

Sergiy Provalov, Yuriy Sydorenko, Sergiy Shylo. (2023). Estimation of the Parameters of Focused Beams at Short Distances for Antennas of Diffraction Radiation at the Millimeter-Wave Band. American Journal of Electromagnetics and Applications, 10(2), 16-24. https://doi.org/10.11648/j.ajea.20221002.11

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ACS Style

Sergiy Provalov; Yuriy Sydorenko; Sergiy Shylo. Estimation of the Parameters of Focused Beams at Short Distances for Antennas of Diffraction Radiation at the Millimeter-Wave Band. Am. J. Electromagn. Appl. 2023, 10(2), 16-24. doi: 10.11648/j.ajea.20221002.11

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AMA Style

Sergiy Provalov, Yuriy Sydorenko, Sergiy Shylo. Estimation of the Parameters of Focused Beams at Short Distances for Antennas of Diffraction Radiation at the Millimeter-Wave Band. Am J Electromagn Appl. 2023;10(2):16-24. doi: 10.11648/j.ajea.20221002.11

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@article{10.11648/j.ajea.20221002.11,
  author = {Sergiy Provalov and Yuriy Sydorenko and Sergiy Shylo},
  title = {Estimation of the Parameters of Focused Beams at Short Distances for Antennas of Diffraction Radiation at the Millimeter-Wave Band},
  journal = {American Journal of Electromagnetics and Applications},
  volume = {10},
  number = {2},
  pages = {16-24},
  doi = {10.11648/j.ajea.20221002.11},
  url = {https://doi.org/10.11648/j.ajea.20221002.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajea.20221002.11},
  abstract = {The article considers the results of experimental studies of the parameters of focused beams formed in W-band planar antennas of diffraction radiation using an axial dielectric lens and at focal lengths from tens of centimeters to several meters. The focusing of the beam was carried out utilizing a set of replaceable dielectric lenses with a calculated focusing distance of 1,5 m, 3 m, and 6 m. The focusing mode was also considered with two lenses installed in series, jointly providing focusing of the beam at a distance of about 0,8 m. Evaluation of the operating parameters of an electrodynamic system consisting of a planar dielectric waveguide and a planar diffraction grating both located near an inhomogeneity in the form of a dielectric layer with a variable profile (thickness), which is an axial dielectric lens, was the main aim of the researches, as well as the effect of this inhomogeneity on the quality of the formed focused beams under conditions of changes in the distance (depth of field) in the imaging mode, when the beam is inflected from the lens axis, as well as when the operating frequency changes over a wide range of values. In the course of the research, it was found that dielectric lenses with an axial profile made of high-quality polystyrene or PTFE provide the parameters of focusing antenna beams for the developed antennas of diffraction radiation following theoretical calculations, both in the focusing depth and in the mode of beam inflection from the lens axis up to  9 while changing the frequency in the range of 84100 GHz. In this case, the level of the measured side lobes in the generated beams practically did not differ from the similar values obtained for these antennas during their measurement in the open space (in the far-field zone). At a focal length of 75 cm, the transverse dimension of the focused beam was estimated as 35 mm, which approximately corresponds to the radiation wavelength and demonstrates a high focusing quality approaching the theoretically possible diffraction limit and also indicates a weak influence of the inhomogeneity in the form of a dielectric lens on the electrodynamics properties of the antenna of diffraction radiation.},
 year = {2023}
}

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TY  - JOUR
T1  - Estimation of the Parameters of Focused Beams at Short Distances for Antennas of Diffraction Radiation at the Millimeter-Wave Band
AU  - Sergiy Provalov
AU  - Yuriy Sydorenko
AU  - Sergiy Shylo
Y1  - 2023/01/30
PY  - 2023
N1  - https://doi.org/10.11648/j.ajea.20221002.11
DO  - 10.11648/j.ajea.20221002.11
T2  - American Journal of Electromagnetics and Applications
JF  - American Journal of Electromagnetics and Applications
JO  - American Journal of Electromagnetics and Applications
SP  - 16
EP  - 24
PB  - Science Publishing Group
SN  - 2376-5984
UR  - https://doi.org/10.11648/j.ajea.20221002.11
AB  - The article considers the results of experimental studies of the parameters of focused beams formed in W-band planar antennas of diffraction radiation using an axial dielectric lens and at focal lengths from tens of centimeters to several meters. The focusing of the beam was carried out utilizing a set of replaceable dielectric lenses with a calculated focusing distance of 1,5 m, 3 m, and 6 m. The focusing mode was also considered with two lenses installed in series, jointly providing focusing of the beam at a distance of about 0,8 m. Evaluation of the operating parameters of an electrodynamic system consisting of a planar dielectric waveguide and a planar diffraction grating both located near an inhomogeneity in the form of a dielectric layer with a variable profile (thickness), which is an axial dielectric lens, was the main aim of the researches, as well as the effect of this inhomogeneity on the quality of the formed focused beams under conditions of changes in the distance (depth of field) in the imaging mode, when the beam is inflected from the lens axis, as well as when the operating frequency changes over a wide range of values. In the course of the research, it was found that dielectric lenses with an axial profile made of high-quality polystyrene or PTFE provide the parameters of focusing antenna beams for the developed antennas of diffraction radiation following theoretical calculations, both in the focusing depth and in the mode of beam inflection from the lens axis up to  9 while changing the frequency in the range of 84100 GHz. In this case, the level of the measured side lobes in the generated beams practically did not differ from the similar values obtained for these antennas during their measurement in the open space (in the far-field zone). At a focal length of 75 cm, the transverse dimension of the focused beam was estimated as 35 mm, which approximately corresponds to the radiation wavelength and demonstrates a high focusing quality approaching the theoretically possible diffraction limit and also indicates a weak influence of the inhomogeneity in the form of a dielectric lens on the electrodynamics properties of the antenna of diffraction radiation.
VL  - 10
IS  - 2
ER  -

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Author Information

Sergiy Provalov

Department of Radiointroscopy, O. Ya. Usikov Institute for Radiophysics and Electronics National Academy of Sciences of Ukraine, Kharkiv, Ukraine
Yuriy Sydorenko

Department of Radiointroscopy, O. Ya. Usikov Institute for Radiophysics and Electronics National Academy of Sciences of Ukraine, Kharkiv, Ukraine
Sergiy Shylo

Department of Radiointroscopy, O. Ya. Usikov Institute for Radiophysics and Electronics National Academy of Sciences of Ukraine, Kharkiv, Ukraine

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APA Style

Sergiy Provalov, Yuriy Sydorenko, Sergiy Shylo. (2023). Estimation of the Parameters of Focused Beams at Short Distances for Antennas of Diffraction Radiation at the Millimeter-Wave Band. American Journal of Electromagnetics and Applications, 10(2), 16-24. https://doi.org/10.11648/j.ajea.20221002.11

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ACS Style

Sergiy Provalov; Yuriy Sydorenko; Sergiy Shylo. Estimation of the Parameters of Focused Beams at Short Distances for Antennas of Diffraction Radiation at the Millimeter-Wave Band. Am. J. Electromagn. Appl. 2023, 10(2), 16-24. doi: 10.11648/j.ajea.20221002.11

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AMA Style

Sergiy Provalov, Yuriy Sydorenko, Sergiy Shylo. Estimation of the Parameters of Focused Beams at Short Distances for Antennas of Diffraction Radiation at the Millimeter-Wave Band. Am J Electromagn Appl. 2023;10(2):16-24. doi: 10.11648/j.ajea.20221002.11

Copy | Download

@article{10.11648/j.ajea.20221002.11,
  author = {Sergiy Provalov and Yuriy Sydorenko and Sergiy Shylo},
  title = {Estimation of the Parameters of Focused Beams at Short Distances for Antennas of Diffraction Radiation at the Millimeter-Wave Band},
  journal = {American Journal of Electromagnetics and Applications},
  volume = {10},
  number = {2},
  pages = {16-24},
  doi = {10.11648/j.ajea.20221002.11},
  url = {https://doi.org/10.11648/j.ajea.20221002.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajea.20221002.11},
  abstract = {The article considers the results of experimental studies of the parameters of focused beams formed in W-band planar antennas of diffraction radiation using an axial dielectric lens and at focal lengths from tens of centimeters to several meters. The focusing of the beam was carried out utilizing a set of replaceable dielectric lenses with a calculated focusing distance of 1,5 m, 3 m, and 6 m. The focusing mode was also considered with two lenses installed in series, jointly providing focusing of the beam at a distance of about 0,8 m. Evaluation of the operating parameters of an electrodynamic system consisting of a planar dielectric waveguide and a planar diffraction grating both located near an inhomogeneity in the form of a dielectric layer with a variable profile (thickness), which is an axial dielectric lens, was the main aim of the researches, as well as the effect of this inhomogeneity on the quality of the formed focused beams under conditions of changes in the distance (depth of field) in the imaging mode, when the beam is inflected from the lens axis, as well as when the operating frequency changes over a wide range of values. In the course of the research, it was found that dielectric lenses with an axial profile made of high-quality polystyrene or PTFE provide the parameters of focusing antenna beams for the developed antennas of diffraction radiation following theoretical calculations, both in the focusing depth and in the mode of beam inflection from the lens axis up to  9 while changing the frequency in the range of 84100 GHz. In this case, the level of the measured side lobes in the generated beams practically did not differ from the similar values obtained for these antennas during their measurement in the open space (in the far-field zone). At a focal length of 75 cm, the transverse dimension of the focused beam was estimated as 35 mm, which approximately corresponds to the radiation wavelength and demonstrates a high focusing quality approaching the theoretically possible diffraction limit and also indicates a weak influence of the inhomogeneity in the form of a dielectric lens on the electrodynamics properties of the antenna of diffraction radiation.},
 year = {2023}
}

Copy | Download

TY  - JOUR
T1  - Estimation of the Parameters of Focused Beams at Short Distances for Antennas of Diffraction Radiation at the Millimeter-Wave Band
AU  - Sergiy Provalov
AU  - Yuriy Sydorenko
AU  - Sergiy Shylo
Y1  - 2023/01/30
PY  - 2023
N1  - https://doi.org/10.11648/j.ajea.20221002.11
DO  - 10.11648/j.ajea.20221002.11
T2  - American Journal of Electromagnetics and Applications
JF  - American Journal of Electromagnetics and Applications
JO  - American Journal of Electromagnetics and Applications
SP  - 16
EP  - 24
PB  - Science Publishing Group
SN  - 2376-5984
UR  - https://doi.org/10.11648/j.ajea.20221002.11
AB  - The article considers the results of experimental studies of the parameters of focused beams formed in W-band planar antennas of diffraction radiation using an axial dielectric lens and at focal lengths from tens of centimeters to several meters. The focusing of the beam was carried out utilizing a set of replaceable dielectric lenses with a calculated focusing distance of 1,5 m, 3 m, and 6 m. The focusing mode was also considered with two lenses installed in series, jointly providing focusing of the beam at a distance of about 0,8 m. Evaluation of the operating parameters of an electrodynamic system consisting of a planar dielectric waveguide and a planar diffraction grating both located near an inhomogeneity in the form of a dielectric layer with a variable profile (thickness), which is an axial dielectric lens, was the main aim of the researches, as well as the effect of this inhomogeneity on the quality of the formed focused beams under conditions of changes in the distance (depth of field) in the imaging mode, when the beam is inflected from the lens axis, as well as when the operating frequency changes over a wide range of values. In the course of the research, it was found that dielectric lenses with an axial profile made of high-quality polystyrene or PTFE provide the parameters of focusing antenna beams for the developed antennas of diffraction radiation following theoretical calculations, both in the focusing depth and in the mode of beam inflection from the lens axis up to  9 while changing the frequency in the range of 84100 GHz. In this case, the level of the measured side lobes in the generated beams practically did not differ from the similar values obtained for these antennas during their measurement in the open space (in the far-field zone). At a focal length of 75 cm, the transverse dimension of the focused beam was estimated as 35 mm, which approximately corresponds to the radiation wavelength and demonstrates a high focusing quality approaching the theoretically possible diffraction limit and also indicates a weak influence of the inhomogeneity in the form of a dielectric lens on the electrodynamics properties of the antenna of diffraction radiation.
VL  - 10
IS  - 2
ER  -

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