A novel wideband coaxial polarizer

Дубровка, Ф. Ф.; Piltyay, Stepan

doi:10.1109/icatt.2013.6650816

Cited by 35 publications

(20 citation statements)

References 8 publications

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“…The iris polarizer [9][10][11][12][13] is an alternative design of the waveguide polarizer, which provides better performance and wider fractional bandwidth. On the one hand, in dual-polarization antenna systems a waveguide iris polarizer functions only in the combination with an orthomode transducer [9], which makes the feed structure more complicated.…”

Section: Modern Waveguide Polarizers and Their Polarization Charactermentioning

confidence: 99%

Waveguide Iris Polarizers for Ku-band Satellite Antenna Feeds

Piltyay¹,

Bulashenko²,

Demchenko³

2020

J. Nano- Electron. Phys.

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At the present day, antennas and signals with dual or single circular polarizations are widely used in modern satellite telecommunication systems, television systems, satellite navigation systems, civil and military radars, mobile communication systems, wireless identification systems and wireless data networks. The widespread application of signals with circular polarizations is caused by their advantages over signals with polarization of other types. The key element of antenna systems with circular polarizations is a polarizer. It is a microwave device, which performs the transformation of the circularly polarized electromagnetic waves into the linearly polarized waves or vice versa. The combination of a polarizer and an orthomode transducer in the antenna feeds carries out the full conversion of two signals with orthogonal circular polarizations and their transmission to the isolated waveguide ports. This article presents results of the development, optimization and analysis of new designs of compact polarizers based on a square waveguide with irises. The characteristics of polarizers with different number of irises have been optimized for the operation in Ku-band 10.7-12.8 GHz. The electromagnetic characteristics of the waveguide polarizers were simulated and optimized using finite integration technique. The evolution of sizes of optimal polarizer designs and improvement of their performance have been analyzed for the polarizers with 3 and 4 irises. The better characteristics among the investigated waveguide iris polarizer designs are provided by the polarizer with 4 irises. Developed compact square waveguide polarizer with 4 irises provides highlyefficient performance in the operating Ku-band 10.7-12.8 GHz and can be widely used in modern antenna feeds for satellite information systems.

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Section: Modern Waveguide Polarizers and Their Polarization Charactermentioning

confidence: 99%

Waveguide Iris Polarizers for Ku-band Satellite Antenna Feeds

Piltyay¹,

Bulashenko²,

Demchenko³

2020

J. Nano- Electron. Phys.

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“…A large number of scientific articles [29][30][31][32][33][34][35][36][37][38][39][40][41], which consider polarizers, contain only the results of computer simulation, the process of which requires a large amount of time. Therefore, there is a need to create a new mathematical method for the analysis of waveguide polarizers based on reactive elements.…”

Section: Introductionmentioning

confidence: 99%

Simulation of Compact Polarizers for Satellite Telecommunication Systems With the Account of Thickness of Irises

Bulashenko

Piltyay

Demchenko

2021

KPI SN

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Background. One of the main problems in modern satellite telecommunication systems is to increase the volume of information transmission with simultaneous preservation of its quality. Key element of such systems is antenna systems with polarization processing, which is carried out using polarizers. Therefore, development of new polarizers and simple techniques for their analysis and optimization are important problems. The most simple, effective, technological and actual for analysis are polarizers based on waveguides with irises. Objective. The purpose of the paper is to create a mathematical model of the polarizer based on a square waveguide with irises, which allows analyzing the influence of polarizer’s design parameters on its electromagnetic characteristics. Methods. A mathematical model of the waveguide polarizer with irises is created by decomposition technique using transfer and scattering wave matrices. To take into account the irises’ thickness their equivalent T- and Π-shaped circuits were used. Results. We have developed mathematical model of the waveguide polarizer with irises, which takes into account their thickness and is based on the complete scattering wave matrix of the waveguide polarizer. The matrix has been obtained using the microwave circuit theory. The main characteristics of the waveguide polarizer were defined using matrix elements. The optimization of characteristics of a polarizer was carried out in the operating Ku-band 10.7–12.8 GHz. Conclusions. Suggested mathematical model of a waveguide polarizer with irises provides the account of heights of irises, distances between them and their thickness. The results obtained show that this model is simpler and faster for the calculation of electromagnetic characteristics compared to finite elements method, which is often used for analysis of microwave devices for various applications.

show abstract

Section: Introductionmentioning

confidence: 99%

Simulation of Compact Polarizers for Satellite Telecommunication Systems With the Account of Thickness of Irises

Piltyay¹

2021

Preprint

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Background. One of the main problems in modern satellite telecommunication systems is to increase the volume of information transmission with simultaneous preservation of its quality. Key element of such systems is antenna systems with polarization processing, which is carried out using polarizers. Therefore, development of new polarizers and simple techniques for their analysis and optimization are important problems. The most simple, effective, technological and actual for analysis are polarizers based on waveguides with irises.Objective. The purpose of the paper is to create a mathematical model of the polarizer based on a square waveguide with irises, which allows analyzing the influence of polarizer’s design parameters on its electromagnetic characteristics.Methods. A mathematical model of the waveguide polarizer with irises is created by decomposition technique using transfer and scattering wave matrices. To take into account the irises’ thickness their equivalent T- and Π-shaped circuits were used.Results. We have developed mathematical model of the waveguide polarizer with irises, which takes into account their thickness and is based on the complete scattering wave matrix of the waveguide polarizer. The matrix has been obtained using the microwave circuit theory. The main characteristics of the waveguide polarizer were defined using matrix elements. The optimization of characteristics of a polarizer was carried out in the operating Ku-band 10.7–12.8 GHz.Conclusions. Suggested mathematical model of a waveguide polarizer with irises provides the account of heights of irises, distances between them and their thickness. The results obtained show that this model is simpler and faster for the calculation of electromagnetic characteristics compared to finite elements method, which is often used for analysis of microwave devices for various applications.

show abstract

A novel wideband coaxial polarizer

Cited by 35 publications

References 8 publications

Waveguide Iris Polarizers for Ku-band Satellite Antenna Feeds

Waveguide Iris Polarizers for Ku-band Satellite Antenna Feeds

Simulation of Compact Polarizers for Satellite Telecommunication Systems With the Account of Thickness of Irises

Simulation of Compact Polarizers for Satellite Telecommunication Systems With the Account of Thickness of Irises

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