Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Michał Mrozowski"'
Autor:
Konrad Wilczyński, Anna Wróblewska, Agata Daniszewska, Jerzy Krupka, Michał Mrozowski, Mariusz Zdrojek
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-9 (2022)
Abstract Polymer composites with high dielectric constant and low loss tangent are highly regarded as substrates for modern high-speed electronics. In this work, we analyze the high-frequency dielectric properties of two types of composites based on
Externí odkaz:
https://doaj.org/article/35cda0ce2a154876b44eed90b6390ba1
Autor:
Piotr Kowalczyk, Michał Mrozowski
Publikováno v:
Journal of Telecommunications and Information Technology, Iss 2 (2005)
Recently, a radial basis functions (RBFs) method, which was originally proposed for interpolation problems, has been developed and applied to solve partial differential equations and eigenproblems. Properties of that method (meshfree algorithm) allow
Externí odkaz:
https://doaj.org/article/edaaa69c0d614a7687ca2e05bbfc8a8f
Autor:
Piotr Kozakowski, Michał Mrozowski
Publikováno v:
Journal of Telecommunications and Information Technology, Iss 1 (2003)
A gradient based optimization technique along with a new definition of cost function is applied to synthesis of coupled resonators filters. The cost function is defined using location of zeros and poles of the filter`s transfer function. The topology
Externí odkaz:
https://doaj.org/article/4107be2bdee34c06b1ebb9fb9d71e39b
Autor:
Piotr Kozakowski, Michał Mrozowski
Publikováno v:
Journal of Telecommunications and Information Technology, Iss 1 (2002)
The forward-backward autoregressive (AR) model is applied to extract time signatures generated by the FDTD algorithm. It is shown that using simple techniques of model parameters selection one is able to reduce the model complexity for low and medium
Externí odkaz:
https://doaj.org/article/e0ab1b41917f4e12808efdaafb497c4b
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-11 (2024)
Abstract This paper presents a novel design of a low-loss, reconfigurable broadband phase shifter based on groove gap waveguide (GGW) technology. The proposed phase shifter consists of a folded GGW and three bends with a few pins forming the GGW and
Externí odkaz:
https://doaj.org/article/4b22eba9c8834df2a600999ea38f03ef
Publikováno v:
IEEE Access, Vol 12, Pp 169419-169431 (2024)
This work presents a design methodology for synthesizing a category of compact inline sharp-rejection waveguide cavity bandpass filters based on novel frequency-variant coupling (FVC) structures. These FVCs consist of a rectangular slot placed in the
Externí odkaz:
https://doaj.org/article/a2f4a0eef4cb43cab2f62971c74a82cf
Publikováno v:
IEEE Access, Vol 12, Pp 86346-86354 (2024)
This paper proposes a compact cross-shaped groove gap waveguide structure for creating wideband and compact directional couplers with different coupling levels. Groove gap waveguide technology is applied to overcome fabrication challenges of printed
Externí odkaz:
https://doaj.org/article/a3010811b1bc4d28a8bb1eebf177f48d
Publikováno v:
IEEE Access, Vol 12, Pp 78275-78285 (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 c
Externí odkaz:
https://doaj.org/article/67ce306c60154893bd3b7c4e629e0878
Publikováno v:
IEEE Access, Vol 12, Pp 74777-74783 (2024)
The development of a broadband printed wide-slot antenna based on Gielis curves is presented in this article. The printed wide-slot antenna can be conveniently reshaped to achieve ultra-wideband performance by using superformula. The distinct advanta
Externí odkaz:
https://doaj.org/article/c4e8b93253a348f19abed5a3b989a20d
Publikováno v:
IEEE Access, Vol 12, Pp 8924-8931 (2024)
This article presents an optimized dual-polarized transmitarray antenna (TA) designed for MIMO applications at the Ka-band, capable of switching beams in two directions. The antenna aperture uses a small unit cell with three layers of Taconic RF-35 d
Externí odkaz:
https://doaj.org/article/6cb798fcfe8f4af699b7372c232466b1