Wyniki wyszukiwania dla: LOSSY FILTERS

• Synthesis of coupled lossy resonator filters.

  Publikacja

  • Ł. Szydłowski
  • A. Lamęcki
  • M. Mrozowski

  - IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS - Rok 2010

  A technique for fast synthesis of coupling matrix low-pass prototypes of generalized. Chebyshev bandpass filters with lossy resonators is presented in this letter. The coupling matrix is found by solving a nonlinear least squares problem based on zeros and poles of filter's transfer functions.

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• On the synthesis of coupled-lossy resonator filters with unloaded quality factor control

  Publikacja

  • Ł. Szydłowski
  • A. Lamęcki
  • M. Mrozowski

  - Rok 2010

  A technique for fast synthesis of coupling matrix low-pass prototypes of generalized Chebyshev bandpass filters with lossy resonators is presented in this paper. The coupling matrix is found by solving a nonlinear least squares problem based on zeros and poles of filter's transfer functions. Additional constraints are introduced that allow one to control the level of unloaded quality factor of resonators.

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• Design of Microwave Lossy Filter Based on Substrate Integrated Waveguide (SIW)

  Publikacja

  • M. Mrozowski
  • A. Lamęcki
  • Ł. Szydłowski

  - IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS - Rok 2011

  In this letter, we propose a lossy three-pole Chebyshev filter centered at 5.15 GHz, based on the substrate integrated waveguide (SIW) with scattering characteristics shifted down by 5.68 dB. The filter is composed of three directly coupled SIW cavities with three lossy couplings between nonadjacent resonators. These additional couplings are realized using mixed coupled slot and microstrip lines connected with metal electrode leadless...

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• Low-Loss 3D-Printed Waveguide Filters Based on Deformed Dual-Mode Cavity Resonators

  Publikacja

  • M. Baranowski
  • Ł. Balewski
  • A. Lamęcki
  • M. Mrozowski

  - IEEE Access - Rok 2024

  This paper introduces a new type of waveguide filter with smooth profile, based on specially designed dual-mode (DM) cavity resonators. The DM cavity design is achieved by applying a shape deformation scheme. The coupling between the two orthogonal cavity modes is implemented by breaking the symmetry of the structure, thus eliminating the need for additional coupling elements. The modes operating in the cavity are carefully analyzed...

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• Fibers

  Czasopisma

  ISSN: 2079-6439

• The Influence of Fibers from Domestic Laundry Wastewater on the Clogging Process of a Filter

  Publikacja

  • J. NIEĆ
  • N. Walczak
  • M. Spychała
  • Z. Walczak

  - Water - Rok 2024

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• Broad Stopband, Low-Loss, and Ultra-Compact Dual-Mode Bandpass Filter Based on HMSIRC

  Publikacja

  • R. Barik
  • S. Kozieł
  • A. Pietrenko-Dąbrowska

  - Electronics - Rok 2023

  In this investigation, an ultra-compact dual-mode bandpass filter (BPF) with a wide stopband re-sponse is realized by using a half-mode substrate-integrated rectangular cavity (HMSIRC). The HMSIRC resonator is designed with a cavity that is rectangular in shape and has metallic vias along three of the sides. The fourth side is open-ended and contains microstrip feed lines. For the purpose of constructing a magnetic wall, a rectangular...

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• Kriging Models for Microwave Filters

  Publikacja

  • N. Leszczynska
  • S. Ulaganathan
  • A. Lamęcki
  • T. Dhaene
  • M. Mrozowski

  - Rok 2016

  Surrogate modeling of microwave filters’ response is discussed. In particular, kriging is used to model either the scattering parameters of the filter or the rational representation of the filter’s characteristics. Surrogate models for these two variants of kriging are validated in solving a microwave filter optimization problem. A clear advantage of surrogate models based on the rational representation over the models based on scattering...

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• The wastewater flow through trickling filters.

  Publikacja

  • S. Bering
  • J. Sawicki

  - Rok 2004

  Filtry zraszane projektowane są głównie w oparciu o wytyczne techniczne. W pracy zaproponowano metodę o charakterze strukturalnym. Pokazano sposób określania miarodajnego czasu przebywania cieczy w układzie i powiązania go z kinetyczną charakterystyką procesu oczyszczania ścieków.

• Fast synthesis of coupled-resonator filters.

  Publikacja

  • A. Lamęcki
  • P. Kozakowski
  • M. Mrozowski

  - Rok 2004

  Zaproponowana została nowa, szybko zbieżna technika syntezy macierzy sprzężneń filtrów wykorzystujących rezonatory sprzężone. Metoda jest sformułowana jako nieliniowy problem najmniejszych kwadratów, optarty o zera i bieguny zwarciowej impedancji wejsciowej i wyjściowej oraz wartości własnych macierzy sprzężeń i jej podmacierzy.