Compact septum polarizers with a circular output waveguide

Kirilenko, А. A.; Кulik, D. Yu.; Rud, L. A.; Тkachenko, V. І.; Herscovici, N.

doi:10.1109/msmw.2004.1346088

Cited by 10 publications

(10 citation statements)

References 7 publications

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“…A waveguide polarizer with longitudinal septum is the most frequently used kind of polarization converters and dividers [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25]. The main benefit of this polarizer consists in its compact structure, which combines the functions of an orthogonal mode selector and polarization converter.…”

Section: Designs Of Modern Waveguide Polarizersmentioning

confidence: 99%

“…Recently, a new septum polarizer was proposed in [11] for the application in an antenna without mechanical switching between right and left hand circular polarizations (LHCP and RHCP). In [12] a model of a new septum polarizer with stepped ridge transitions in a rectangular waveguide was proposed. The numerical analysis of a septum polarizer was carried out using computer simulation in [13].…”

Section: Designs Of Modern Waveguide Polarizersmentioning

confidence: 99%

“…. (12) Another frequently applied value to characterize the polarization state of electromagnetic wave in guide polarizers, which is directly connected with the ellipticity coefficient, is isolation of linear polarizations. In the considered circular polarization basis it is equal to the ratio of the modules of LHCP and RHCP components.…”

Section: Working Mechanism Of a Guide Polarizer And Its Polarization Characteristicsmentioning

confidence: 99%

See 2 more Smart Citations

Comparative Analysis of Compact Satellite Polarizers Based on a Guide with Diaphragms

Piltyay

Bulashenko

Fesyuk

et al. 2021

AEM

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In this article we carry out the comparative analysis of new compact satellite polarisers based on a square guide with diaphragms. The main electromagnetic parameters of the developed microwave guide devices with various amount of diaphragms were obtained within the satellite frequency interval from 10.7 GHz to 12.75 GHz. Waveguide polarization converters with different amount of diaphragms from 2 to 5 have been designed and optimized. The main parameters of the presented polarizer were calculated applying the numerical method of finite integration in the frequency domain. Optimization of the electromagnetic parameters of the developed waveguide devices was carried out using the software CST Microwave Studio. As a result, sizes of the device designs have been optimized for the provision of improved polarization and phase parameters. The performed analysis showed that a waveguide polarizer with five diaphragms has the best electromagnetic parameters. The developed compact polarizer with five diaphragms based on a square guide provides a minimum deviation of the output phase difference from 90 degrees and high level of isolation between linear polarization over the entire operating frequency range. Presented in the article compact waveguide polarization converters can be applied in satellite systems, which require efficient polarization separation of signals.

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Section: Designs Of Modern Waveguide Polarizersmentioning

confidence: 99%

Section: Designs Of Modern Waveguide Polarizersmentioning

confidence: 99%

Section: Working Mechanism Of a Guide Polarizer And Its Polarization Characteristicsmentioning

confidence: 99%

See 1 more Smart Citation

Comparative Analysis of Compact Satellite Polarizers Based on a Guide with Diaphragms

Piltyay

Bulashenko

Fesyuk

et al. 2021

AEM

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show abstract

Section: Designs Of Modern Waveguide Polarizersmentioning

confidence: 99%

Comparative Analysis of Compact Satellite Polarizers Based on a Guide with Diaphragms

Piltyay¹

2021

Preprint

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In this article we carry out the comparative analysis of new compact satellite polarisers based on a square guide with diaphragms. The main electromagnetic parameters of the developed microwave guide devices with various amount of diaphragms were obtained within the satellite frequency interval from 10.7 GHz to 12.75 GHz. Waveguide polarization converters with different amount of diaphragms from 3 to 5 have been designed and optimized. The main parameters of the presented polarizer were calculated applying the numerical method of finite integration in the frequency domain. Optimization of the electromagnetic parameters of the developed waveguide devices was carried out using the finite elements method in the frequency domain. As a result, sizes of the guide polarizer designs have been optimized for the provision of improved polarization and phase parameters. The performed analysis showed that a waveguide polarizer with five diaphragms has the best electromagnetic parameters. The developed compact polarizer with five diaphragms based on a square guide provides a minimum deviation of the output phase difference from 90 degrees and high level of isolation between linear polarization over the entire operating frequency range. Presented in the article compact waveguide polarization converters can be applied in modern satellite systems, which require efficient polarization transformation and separation of signals.

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“…Polarizing devices are created on the basis of inhomogeneities in the waveguide. There exist developed structures of polarizers based on inhomogeneities with diaphragms [12][13][14][15][16][17], posts [18][19][20][21][22], septums [23][24][25][26][27][28][29] and corrugation [30][31]. There are also a number of designs of polarizers in the form of slots [32][33].…”

Section: Introductionmentioning

confidence: 99%

Tunable Polarizers for X-Band Radar and Telecommunication Systems

Bulashenko

Piltyay

Kalinichenko

et al. 2021

KPI SN

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Background. Nowadays processing of signal polarizations is widely applied in modern information and telecommunication radio engineering systems for different purposes. Commonly polarization processing is carried out in polarization adaptive antenna systems. The essential elements of such systems are transformation devices for polarization processing. They perform the transformation of the types of polarization and separate the different types to isolated channels. The most simple, effective, technological and actual for analysis are polarizers based on square waveguides with irises and posts. Objective. The purpose of this work is to improve the electromagnetic characteristics of an adjustable polarizer by creating a mathematical model of such device. The device must provide optimized polarization and matching characteristics. Methods. The article presents a mathematical model of a waveguide polarizer with irises and posts by the decomposition method using wave transmission and scattering matrices. The developed model takes into account the influence of the polarizer design parameters on its characteristics. Results. The article contains the results of calculations based on the developed mathematical model of the polarizer. In addition, the results of modelling of the device using the finite element method are presented for comparison. For the developed waveguide polarizer we have compared the polarization characteristics and the matching. Conclusions. The created mathematical model allows us to effectively analyse the characteristics when the design parameters change. These parameters include the size of the wall of the square waveguide, the heights of the irises and posts, the distance between them, the thickness of the irises and posts. The developed polarizer is recommended for the application in modern telecommunication and radar systems.

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Compact septum polarizers with a circular output waveguide

Cited by 10 publications

References 7 publications

Comparative Analysis of Compact Satellite Polarizers Based on a Guide with Diaphragms

Comparative Analysis of Compact Satellite Polarizers Based on a Guide with Diaphragms

Comparative Analysis of Compact Satellite Polarizers Based on a Guide with Diaphragms

Tunable Polarizers for X-Band Radar and Telecommunication Systems

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