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ABSTRACT: In recent years, wireless systems have rapidly evolved due to the increasing demands of different services, functionalities, and applications. In order to provide high-speed connectivity while using the available spectrum in an efficient manner, wideband digitally modulated signals are increasingly used to transmit information.
IEEE Microwave Magazine 05/2011; · 2.11 Impact Factor
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ABSTRACT: A novel set-up extending Large Signal Network Analyzer (LSNA) capabilities is described in this work. The new set-up allows the simultaneous on-wafer measurement of high-frequency response (600 MHz-50 GHz) and currents/voltages induced at low-frequency scale (10 kHz-24 MHz) when the nonlinear DUT is excited by a periodic modulated signal. Experiments carried out on FinFET devices are reported. It will be shown that, in certain conditions, the contribution of low-frequency information cannot be disregarded as it causes a significant discrepancy to appear in the current/voltage at the DUT terminals.
Microwave Conference, 2009. EuMC 2009. European; 11/2009
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ABSTRACT: In this work, measurements of the high frequency as well as the low frequency response of a non-linear microwave circuit are reported. The developed set-up is based on an extension of the LSNA and it enables the simultaneous measurement of baseband response and RF behaviour. Thanks to this capability a direct correlation between the variation of baseband impedance and asymmetry of distortion components around the fundamental carrier is possible. Experimental results of two-tone measurements, carried out on a hybrid GaAs microwave circuit, are shown.
ARFTG Microwave Measurement Symposium, 2008 72nd; 01/2009
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ABSTRACT: This work presents a way to determine the complete response, encompassing both the low- and high-frequency components, at the device terminals within a microwave circuit. The measurement set-up is based on an extension of the large-signal network analyser. Experimental results on a GaAs power amplifier are analysed.
Integrated Nonlinear Microwave and Millimetre-Wave Circuits, 2008. INMMIC 2008. Workshop on; 12/2008