Planar antenna with diffraction radiation for radar complex of millimeter band

Melezhik, P. N.; Sidorenko, Yu. V.; Provalov, S. A.; Andrenko, S. D.; Shilo, S.A.

doi:10.3103/s073527271005002x

Cited by 12 publications

(4 citation statements)

References 2 publications

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“…Such an antenna was tested in the 32 beam-forming mode in the W-band passive imaging system with formation of 2 images per second in the presence of only one moving element in the system -namely, the PDG in the form of a disk [25]. Figure 9 shows the main view of Ka-band planar ADR with aperture size 18 cm × 200 cm tested as an antenna for radar station destined for airport's land area observation [26,27]. During the course of the planar ADR development both PTFE (Teflon™) and polystyrene were tested as dielectric materials for the PDW.…”

Section: Variants Of Realization For Planar Antenna Of Diffraction Ramentioning

confidence: 99%

Compact MMW-band Planar Diffraction Type Antennas for Various Applications

Sydorenko¹,

Provalov²,

Shylo³

et al. 2020

AJEA

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The principles of formation of antennas of diffraction radiation with flat surface in the millimeter wave radio band are considered. Such kinds of antennas are based on the effect of the conversion of volumetric electromagnetic waves into surface waves of a dielectric waveguide in an open electrodynamic structure. A brief description of the theoretical basis for the calculations and examples of the technical implementation of flat (2D) antennas of diffraction radiation in the W-band and Ka-band are presented; their parameters and areas of possible use are discussed. In the E-plane angle-to-frequency dependence of beam position is realized with coefficient near 0,9°/1% of frequency change. That makes it possible effective control of beam position in space (beam scanning along 1, or even along 2 axes). There was estimated that total active loss in such kind antennas is related to dielectric losses in the material of planar dielectric waveguide and to active losses at the elements of internal waveguide transitions in the ratio near (2: 1). Losses of first kind may be reduced due to implementation of novel dielectric materials providing the smallest dielectric loss (near as for the PTFE material) and appropriate mechanical rigidity at the same time. Active losses of the second kind may be reduced due to implementation of transitions on the base of super-size waveguides.

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Section: Variants Of Realization For Planar Antenna Of Diffraction Ramentioning

confidence: 99%

Compact MMW-band Planar Diffraction Type Antennas for Various Applications

Sydorenko¹,

Provalov²,

Shylo³

et al. 2020

AJEA

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“…In diffraction radiation antennas (or simply in diffraction antennas) [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24], wave analogs of SPR and VChR are implemented. It is impossible to say that they were very widespread, but several dozen devices of this type, unique in their characteristics, have been constructed at O.Ya.…”

Section: Introductionmentioning

confidence: 99%

“…In operating systems, mainly linear [7,9,12,16,[18][19][20][21][22] and planar [7,10,11,[13][14][15][16][17]24] antennas of diffraction radiation were used. In the radiator of a linear antenna, the grating width and the effective width of the open (dielectric) waveguide are from half to two wavelengths, and the length of the radiating aperture is from several tens to several hundred wavelengths.…”

Section: Introductionmentioning

confidence: 99%

Axial-Symmetric Diffraction Radiation Antenna with a Very Narrow Funnel-Shaped Directional Diagram

et al. 2021

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The paper is focused on reliable modeling and analysis of axially symmetric radiators with a very narrow (throat) funnel-shaped radiation pattern. When such a diagram is formed, a wave analogue of Smith–Purcell coherent radiation is realized—the surface wave of a radial dielectric waveguide ‘sweeps out’ with its exponentially decaying part a concentric periodic grating, the fundamental spatial harmonic of which, propagating without attenuation in a direction close to the symmetry axis of the structure, generates a radiation field with the required characteristics.

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“…Open periodic structures composed of planar dielectric waveguides (PDW) combined with various diffraction gratings are basic components extensively used in microwave technology, integrated optical devices and, in particular, satellite communication systems [1][2][3]. Effective use of these guiding structures as parts of leaky-wave antennas can be emphasised [4][5][6][7][8]. These antennas operate upon effects associated with the grating transformation of PDW eigenwaves to either surface waves of the periodic structure PDW-grating or to spatial (propagating) waves taking energy away from the structure [1].…”

Section: Introductionmentioning

confidence: 99%

Surface and leaky waves of a planar dielectric waveguide with a diffraction grating

Kusaykin

Melezhik

Poyedinchuk

et al. 2016

IET Microwaves, Antennas & Propagation

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The eigenwave propagation problem is solved for a periodic waveguide composed of a planar dielectric waveguide and a reflecting diffraction grating. The technique the authors used is the spectral theory of open waveguide structures. The numerical data for the dependences of the propagation constants of surface and complex (leaky) eigenwaves are presented versus frequency and geometrical parameters of the periodic waveguide. In the frequency range of leaky eigenwaves, the angular‐frequency characteristics of the radiation directivity are experimentally studied. The experimental results demonstrate the feasibility of the proposed approach.

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Planar antenna with diffraction radiation for radar complex of millimeter band

Cited by 12 publications

References 2 publications

Compact MMW-band Planar Diffraction Type Antennas for Various Applications

Compact MMW-band Planar Diffraction Type Antennas for Various Applications

Axial-Symmetric Diffraction Radiation Antenna with a Very Narrow Funnel-Shaped Directional Diagram

Surface and leaky waves of a planar dielectric waveguide with a diffraction grating

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