Serwis Infona wykorzystuje pliki cookies (ciasteczka). Są to wartości tekstowe, zapamiętywane przez przeglądarkę na urządzeniu użytkownika. Nasz serwis ma dostęp do tych wartości oraz wykorzystuje je do zapamiętania danych dotyczących użytkownika, takich jak np. ustawienia (typu widok ekranu, wybór języka interfejsu), zapamiętanie zalogowania. Korzystanie z serwisu Infona oznacza zgodę na zapis informacji i ich wykorzystanie dla celów korzytania z serwisu. Więcej informacji można znaleźć w Polityce prywatności oraz Regulaminie serwisu. Zamknięcie tego okienka potwierdza zapoznanie się z informacją o plikach cookies, akceptację polityki prywatności i regulaminu oraz sposobu wykorzystywania plików cookies w serwisie. Możesz zmienić ustawienia obsługi cookies w swojej przeglądarce.
In this paper, a simple procedure is presented to miniaturize an omnidirectional ultra wideband (UWB) planar antenna using pairs of slots in the radiator and the ground plane. The results presented in this paper show that the proposed method reduces the antenna's surface area by 50%, with the same bandwidth, efficiency and radiation pattern.
In this paper, a wireless interconnection operating at 24GHz, which utilizes an antenna in the form of a tapered slot structure, is proposed. The design of the antenna and the evaluation of its performance are accomplished via full-wave electromagnetic simulations. The design process assumes that the structure operates in an environment similar to the one used in the ultra large scale integration...
This paper has presented a multiresonance cross element which can be used to build a dual-band reflectarray with dual linear polarization. It has a single layer structure which makes it easy to manufacture. The results presented in this paper has shown that the mutual effect between the elements of the two bands is negligible, which makes it easy to achieve the phase compensation for each band separately.
This paper describes the use of printed parasitic elements, which are placed in the radiating aperture of the planar monopole antenna to suppress the radiation at multiple frequency bands within the ultra wide frequency range. The chosen frequency bands are not necessarily restricted to the existing wireless services. The effectiveness of the proposed method compares favorably with the other methods...
An experimental and theoretical study concerning capabilities of an ultra wideband (UWB) microwave radar to detect breast cancer is presented. A simple phantom, consisting of a cylindrical plastic container with a low dielectric constant material imitating fatty tissues and a high dielectric constant object emulating tumour, is scanned over a circular cylindrical surface with an UWB probe antenna...
The paper describes a Multiple Input Multiple Output communication testbed for operation in a dual 2.4 GHz/5 GHz band, which is under development at the University of Queensland. This advanced testing equipment makes use of Field Programmable Gate Array technology for fast processing of the baseband signals. Its RF modules include commercially available RF transceiver chips and in-house developed...
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.