Parametric Optimization of Waveguide Polarizer by Equivalent Network and Fem Models

Piltyay, Stepan; Bulashenko, Andrew; Kalinichenko, Ye. I.

doi:10.1615/telecomradeng.2021037160

Cited by 11 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the obtained dimensions of the developed polarization device, the basic electromagnetic characteristics in the operating frequency range of 13.0-14.4 GHz were calculated and optimized using the proposed method [82][83][84][85], the finite integration method [86] and the finite element method [87,88], respectively, which are presented in Tables II-IV. For the obtained dimensions of the developed polarization device, the basic electromagnetic characteristics in the operating frequency range of 13.0-14.4 GHz were calculated and optimized using the proposed method [82][83][84][85], the finite integration method [86] and the finite element method [87][88][89], respectively, which are presented in Tables II-IV. Tables 2-4 show that the developed device for polarization conversion with three diaphragms provides satisfactory matching in telecommunication systems.…”

Section: Analysis Of Optimization Resultsmentioning

confidence: 99%

Accuracy and Agreement of FDTD, FEM and Wave Matrix Methods for the Electromagnetic Simulation of Waveguide Polarizers

Bulashenko

Piltyay

Polishchuk

et al. 2022

AEM

View full text Add to dashboard Cite

Waveguide devices of polarization processing are key elements of modern dual-polarized antenna systems. Such antenna systems carry out polarization transformation and separation of signals with orthogonal polarizations in satellite communications and radar appliances. Well-known electrodynamic methods are used to simulate performance of such devices. This paper investigates the accuracy and mutual matching of wave matrix method with FDTD and FEM. The wave matrix method is based on the theory of scattering and transmission matrices. The main electromagnetic characteristics of a polarizer were obtained through the elements of these matrices. The main characteristics of a polarizer were compared. They include phase difference of orthogonal polarizations, level of voltage standing wave, ellipticity coefficient and level of cross-polarization isolation. Comparison of electromagnetic characteristics was carried out at the example of a waveguide iris polarizer for the operating frequency range from 13.0 to 14.4 GHz. In addition, the process of optimization of electromagnetic characteristics was carried out by changing the geometric dimensions of a polarizer. Calculated by different theoretical methods characteristics were compared and analyzed. Results, which were obtained by considered methods, are in good agreement

show abstract

Section: Analysis Of Optimization Resultsmentioning

confidence: 99%

Accuracy and Agreement of FDTD, FEM and Wave Matrix Methods for the Electromagnetic Simulation of Waveguide Polarizers

Bulashenko

Piltyay

Polishchuk

et al. 2022

AEM

View full text Add to dashboard Cite

show abstract

“…Wideband antenna systems with the possibility of simultaneous operation at two orthogonal circular or linear polarizations require application of specific kinds of waveguides (with irises, 22–30 ridges, 31–39 corrugations, 40–44 posts, 45–50 or a longitudinal septum 51,52 ) and microwave devices in the antenna system's structure 53–60 . One of frequently used and compact solutions for the operation at two orthogonal circular polarizations are the integration of a septum‐based polarization converter into a waveguide antenna feed system 61–65 .…”

Section: Introductionmentioning

confidence: 99%

“…[11][12][13][14] The advantages include the reduction of amplitude and polarization distortions caused by Faraday effect in the ionosphere and by the multipath propagation in urban environments and mobile systems. [15][16][17][18][19][20][21] Wideband antenna systems with the possibility of simultaneous operation at two orthogonal circular or linear polarizations require application of specific kinds of waveguides (with irises, [22][23][24][25][26][27][28][29][30] ridges, [31][32][33][34][35][36][37][38][39] corrugations, [40][41][42][43][44] posts, [45][46][47][48][49][50] or a longitudinal septum 51,52 ) and microwave devices in the antenna system's structure. [53][54][55][56][57]…”

Section: Introductionmentioning

confidence: 99%

Computer‐aided development and experimental investigation of a double‐ridged orthomode transducer for modern satellite and space communication systems

Piltyay

2022

Int J RF Mic Comp-Aid Eng

View full text Add to dashboard Cite

This article presents results of development, optimization, and experimental measurements of electromagnetic characteristics of a wideband orthomode transducer for satellite and space communications. Analyzed design of the transducer is based on a double‐ridged waveguide junction, which allows to obtain high level of discrimination of fundamental electromagnetic modes with perpendicular linear polarizations. Numerical modeling of the designed microwave waveguide orthomode transducer was performed by an effective finite elements method in the frequency domain. Optimization of the structure elements allowed to obtain high quality of matching and to improve the isolation between orthogonal polarizations simultaneously. To optimize the electromagnetic performance of the developed orthomode transducer a trust region method, which previously demonstrated its effectiveness for the improvement of electromagnetic characteristics of waveguide polarization converters, was applied. Experimental measurements of all scattering parameters of an antenna feed system, which included a designed orthomode transducer and a corrugated horn, were performed for the verification of simulated results. Results of computer‐aided modeling and of measurements are in agreement. Measured good matching and high level of isolation between orthogonal polarizations confirm effective electromagnetic performance of the developed orthomode transducer. Designed wideband waveguide device can be applied in modern microwave antenna systems operating simultaneously at two linear or circular polarizations of electromagnetic waves.

show abstract

Electromagnetic and bandwidth performance optimization of new waveguide polarizers with septum of a stepped-thickness type for satellite systems

Piltyay

2021

Journal of Electromagnetic Waves and Applications

View full text Add to dashboard Cite

Parametric Optimization of Waveguide Polarizer by Equivalent Network and Fem Models

Cited by 11 publications

References 0 publications

Accuracy and Agreement of FDTD, FEM and Wave Matrix Methods for the Electromagnetic Simulation of Waveguide Polarizers

Accuracy and Agreement of FDTD, FEM and Wave Matrix Methods for the Electromagnetic Simulation of Waveguide Polarizers

Computer‐aided development and experimental investigation of a double‐ridged orthomode transducer for modern satellite and space communication systems

Electromagnetic and bandwidth performance optimization of new waveguide polarizers with septum of a stepped-thickness type for satellite systems

Contact Info

Product

Resources

About