Square Waveguide Polarizer with Diagonally Located Irises for Ka-Band Antenna Systems

Piltyay, Stepan

doi:10.7716/aem.v10i3.1780

Cited by 16 publications

(5 citation statements)

References 65 publications

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“…Further, single photon pair production in Si ring resonators is readily available, and C-band operation supports current classical and quantum fiber optic communication work [3][4][5]. Among the few investigations of square waveguides has been interest in iris polarizers for square metal waveguides feeding square aperture antennas in the Ku-band [6][7][8] and more recently in the Ka-band [9]. Twisted square metal waveguides have also been studied [10].…”

Section: Introductionmentioning

confidence: 90%

Towards the on-chip realization of polarization encoded qubits

MacFarlane,

Helmy,

Shahoei

et al. 2024

Quantum Information Science, Sensing, and Computation XVI

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While photonic quantum circuits may be implemented using polarization-encoded qubits, their photonic integrated circuit (PIC) realization has been limited by on-chip impairments such as mode dispersion and polarization state stability that do not hinder bulk-optic, table-top setups. In this paper, we will present an interpretation of on-chip polarization and provide the beginning of a portfolio of components that may be used for polarization-encoded qubits. Central to our work is the use of waveguides of square cross-section, which symmetrically support orthogonal TE and TM modes with perpendicular electric fields. Preliminary designs for components to manipulate these modes are presented, along with measurements relevant to polarization in PICs. The research has relevance, as well, to sensing and security.

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Section: Introductionmentioning

confidence: 90%

Towards the on-chip realization of polarization encoded qubits

MacFarlane,

Helmy,

Shahoei

et al. 2024

Quantum Information Science, Sensing, and Computation XVI

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“…Фазообертач забезпечує хороші показники пропускної здатності на 82 % завдяки низьким втратам вставки та відхилення диференціального фазового зсуву. У роботі [53] пропонується конструкція регульованого фазообертача Ku-діапазону. Налаштування здійснюється завдяки парі регульованих металевих штирів.…”

Section: сучасні хвилевідні пристрої для обробки поляризації та їхні ...unclassified

Microwave waveguide polarizer for satellite communication antennas with circular polarization

Piltyay¹,

Bulashenko²,

Polishchuk³

et al. 2022

Kosm. nauka tehnol.

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The volumes of information transmitted in modern satellite telecommunication systems are constantly increasing. Antennas with signal polarization processing, which is performed by polarizers, are the fundamental elements of such systems. Therefore, the development of methods for the analysis of new polarizers is an important problem. From a technological point of view, polarizers based on waveguides with irises are the simplest. Analysis and optimization of electromagnetic characteristics of a polarizer based on a square waveguide with irises are the goals of the presented research. To solve this optimization problem, we have created a new mathematical model, which allows investigating the influence of the design parameters of the polarizer on its electromagnetic characteristics. A mathematical model of the waveguide polarizer with irises was created by the method of decomposition using wave transmission and scattering matrices. Besides, the new mathematical model takes into account the thickness of the irises using their equivalent T- and П-shaped substitution circuits. The general wave scattering matrix is the basis of a new mathematical model of a waveguide polarizer. This matrix was determined using the theory of microwave circuits. The main characteristics of the waveguide polarizer were determined through the elements of this matrix. Here, we perform the optimization of the polarizer characteristics in the Ku-band 10.7–12.8 GHz. The developed new mathematical model of a waveguide polarizer with irises makes it possible to take into account the heights of the irises, distances between them and their thickness. The new mathematical model determines the electromagnetic characteristics of the polarizer in a simpler and faster way compared to the finite integration technique, which is often used for the analysis of microwave devices for various purposes

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“…A combination of a waveguide polarization converter [67][68][69][70][71][72][73] 73 and an orthomode transducer (OMT) [74][75][76][77][78][79] provides possibility of wideband functionality of an antenna system operating at two circular polarizations simultaneously. Besides, an OMT can be used as a separate microwave waveguide device without a polarizer, if the operation of an antenna system at circular polarizations is not required.…”

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

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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.

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Square Waveguide Polarizer with Diagonally Located Irises for Ka-Band Antenna Systems

Cited by 16 publications

References 65 publications

Towards the on-chip realization of polarization encoded qubits

Towards the on-chip realization of polarization encoded qubits

Microwave waveguide polarizer for satellite communication antennas with circular polarization

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

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