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 new method for nonlinear fitting application is defined, described and tested. The method used the data acquired with LCR meter, nonlinear models of equivalent circuits, nonlinear fitting algorithm and iterative procedure for minimization mean square error between input data and nonlinear impedance model. The low cost LCR meter has been used and adopted to perform frequency range sweep...
Basic equivalent circuit models for silicon photomultipliers are used to predict their behavior in application circuits. Time domain output waveforms can be analyzed to gain an estimation of equivalent circuit parameters. Measurement of frequency domain S-parameters provides an alternate and potentially more accurate method to obtain equivalent circuit values. A vector network analyzer and on-wafer...
This paper presents a methodology for determining the series resistance of (through-wafer interconnect) Vias directly from measured S-Parameters using an ultra-low impedance measurement known as the “S21-Shunt” technique. Data is acquired following on-wafer SOLT calibration using standard VNA / PNA hardware by characterizing “series-shunt” configured test structures. Measurement errors attributable...
The left-handed propagation behaviour of metamaterial structures offers a new paradigm for electromagnetic device and antenna design. To exploit the potential of such structures, accurate methods for characterising the dispersion of a given structure are required. A Bloch-Floquet analysis can be used to retrieve the complex propagation coefficient and Bloch impedance of the corresponding infinite...
A new high frequency drain current noise model was developed for MOSFETs under sub-threshold condition. A simple parameter extraction technique is proposed, which utilizes Y-parameter analysis on the RF small-signal equivalent circuit. Good agreement has been obtained between the predicted and measured results up to 20 GHz.
A new type of variable phase shifter is designed by using the Ansoft HFSS simulation software, which is based on the suspended T-junction and its equivalent circuit. It can easily realize the characteristic of equal power and phase shift.
In this paper, the design of a compact planar bandpass filter above a defected ground plane is presented. The filter is designed as a combination of microstrip resonators and exploits the properties of a planar electromagnetic bandgap (EBG) structure patterned unto the ground plane of the printed circuit board material to provide a very wide stopband of up to 5 times the fundamental frequency. The...
We performed analyses of the frequency response of cloth inductors and thin-film inductors using an amorphous core, applying both to miniature dc-dc converters. Because these inductors are used in high-frequency bands from 1 to 100 MHz, the frequency dependence of the inductance L, capacitance C and resistance R in the inductors cannot be disregarded. The undetermined coefficients in a least-squares...
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.