Publications de Saeed Ghamari | EPFL Graph Search

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With the emergence of the new global navigation satellite systems (GNSSs) such as Galileo, COMPASS and GLONASS, the US Global Positioning System (GPS) has new competitors. This multiplicity of constellations will offer new services and a much better satell ...

A 4 th order Gm-C elliptic low-pass filter with a wide continuous tuning range is presented. The continuous tuning is achieved by means of a new tuning circuit which adjusts the bias current of the Gm cell's input stage to control the cut-off frequency. Wi ...

This paper presents a design methodology for high quality factor resonators based on operational transconductance amplifier (OTA) employed in active filters. The quality factor of a resonator, as its main specification, is translated to the requirements of ...

Next generation of smart tires will improve the safety and stability of the vehicle by monitoring road parameters, such as pavement and rolling conditions, with sensors placed on tire surface. Between the tread and the metal belt of the tire there are only ...

This paper presents a design methodology for common-mode (CM) stability of operational transconductance ampliﬁer (OTA)-based gyrators. The topology of gm−C active inductors is brieﬂy reviewed. Subsequently, a comprehensive mathematical analysis on the CM s ...

An Analog to Digital Converter (ADC) using the low duty-cycle nature of pulse-based Ultra Wide-Band (UWB) communications to reduce its power consumption is proposed. Implemented in CMOS 180 nm technology, it can capture a 5 ns window at 4 GS/s each 100 ns, ...

Saeed Ghamari

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CMOS ASIC Design of Multi-frequency Multi-constellation GNSS Front-ends

A Wide Tuning Range 4th-Order Gm-C Elliptic Filter for Wideband Multi-Standards GNSS Receivers

Design Methodology for Controlled-Q Resonators in OTA-based Filters

Path-loss and car-body-effect characterization for smart tires communications at UWB and ISM bands

Design Methodology for Common-Mode Stability of OTA-based Gyrators

A Versatile 1.4-mW 6-bits CMOS ADC for Pulse-Based UWB Communication Systems