U. Alvarado

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We present a novel radio-frequency identification (RFID) system with capability of localization and tracking of passive or semi-passive tags. Localization and tracking features are enabled by backscatter modulation on ultra-wide bandwidth tag's antenna. A ultra-high frequency signal allows the wake-up of the tags enabling the reduction of energy consumption(More)
This paper presents a dual-gain ESD protected LNA with integrated antenna sensor for a combined GPS and GALILEO front-end. The amplifier has been implemented using a standard 0.35mum SiGe BiCMOS process and the total power consumption is only 8 mA from a 3 V supply. It provides a power gain of 18 dB and a low noise figure of 3.3 dB working in the high gain(More)
A highly integrated, low power GALILEO/GPS front-end for the new generation of positioning services has been designed using a 0.35 mum SiGe process. It has been implemented using a 6 MHz bandwidth low IF architecture whose IF frequency is 4 MHz approximately. The front-end exhibits a voltage gain of 103 dB and present a SSB noise figure of 3.7 dB which(More)
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