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Journal of Radio Electronics Online scientific journal · eISSN 1684-1719
2025, № 3 · ELECTRODYNAMICS

Ultra-wideband dual-reflector antenna with a metal-dielectric feed system

A.S. Venetskiy1, V.A. Kaloshin1, T.T. Nguyen2

1 Kotelnikov IRE RAS, Moscow, Russia
2 Moscow Institute of Physics and Technology (National Research University), Dolgoprudnyi
Full text DOI: 10.30898/1684-1719.2025.3.16 UDC 621.396.67 EDN QMEGUI

Abstract

An ultra-wideband axisymmetric dual-reflector system with a metal-dielectric feed system has been developed and investigated. As a result of numerical modeling using finite element, moment and finite difference methods in the time domain and parameter optimization, it has been shown that the optimized dual-reflector antenna provides the efficiency of more than 0.5 in a frequency band greater than 5:1, and more than 0.7 in a frequency band greater than 3:1.

  • dual-reflector antenna
  • ultra-wideband antenna
  • metal-dielectric feed
  • Mikaelian lens
Аннотация (на русском)

Сверхширокополосная двухзеркальная антенна с металлодиэлектрической облучающей системой

Разработана и исследована сверхширокополосная осесимметричная двухзеркальная система с металлодиэлектрической облучающей системой. В результате численного моделирования методами конечных элементов, моментов и конечных разностей во временной области и оптимизации параметров показано, что оптимизированная двухзеркальная антенна в полосе частот более 5:1 обеспечивает величину коэффициента пользования поверхности более 0.5, а в полосе частот более 3:1 - более 0.7.

For citation

Venetskiy A.S., Kaloshin V.A., Nguyen T.T. Ultra-wideband dual-reflector antenna with a metal-dielectric feed system // Journal of Radio Electronics. – 2025. – No. 3. https://doi.org/10.30898/1684-1719.2025.3.16

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