J
Jozef Modelski
Researcher at Warsaw University of Technology
Publications - Â 133
Citations - Â 792
Jozef Modelski is an academic researcher from Warsaw University of Technology. The author has contributed to research in topics: Antenna (radio) & Reconfigurable antenna. The author has an hindex of 11, co-authored 122 publications receiving 741 citations.
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Journal ArticleDOI
Surface resistance measurements of HTS films by means of sapphire dielectric resonators
TL;DR: A sapphire dielectric resonator with a copper cylindrical shield and two endplates replaced by high-temperature superconducting (HTS) layers was used for very accurate surface resistance measurements on laser-ablated YBCO films.
Journal ArticleDOI
Rigorous analysis and investigations of the scan antennas on a ferroelectric substrate
TL;DR: In this paper, the radiation characteristics of a new microstrip electrically controllable scan antenna are investigated theoretically and experimentally, where both longitudinal and transverse currents are taken into account.
Journal ArticleDOI
Development and Investigation of an Antenna System With Reconfigurable Aperture
TL;DR: In this article, the concept and results of investigation of a waveguide slot antenna with reconfigurable aperture is presented. And the key element of the antenna is a surface PIN (SPIN) diode whose conductivity changes proportionally to the plasma density.
Proceedings ArticleDOI
Attenuation of multipath components using directional antennas and circular polarization for indoor wireless positioning systems
TL;DR: This paper presents results of investigation concerning method for decreasing errors of TOA based indoor wireless positioning systems caused by multipath components based on directional antennas with small side lobes level and results of simulations are presented.
Proceedings ArticleDOI
Voltage-controlled ferroelectric microstrip antenna for phased arrays
TL;DR: In this paper, a voltage-controlled ferroelectric thin tape in the multilayered structure is proposed for a microstrip antenna for a phased array, and its theoretical analysis and design is presented.