Browsing by Author "Aragonès Cervera, Xavier"
Now showing items 1-20 of 42
-
A 250-ps integrated ultra-wideband timed array beamforming receiver in 0.18 um CMOS
(Institute of Electrical and Electronics Engineers (IEEE), 2020)
Conference lecture
Open AccessThis paper presents a 4-channel ultra-wideband (UWB) timed array beamforming receiver designed in a standard 0.18-um CMOS technology. The proposed timed array receiver achieves a maximum delay of 250 ps at the maximum beam ... -
A comparison between grounded and floating shield inductors for mmW VCOs
(2010)
Conference report
Open AccessA floating-shield inductor implemented in CMOS process is compared with a conventional patterned ground shield inductor for the implementation of a LC voltage controlled oscillator (VCO) operating at mmW frequencies. ... -
A low-power RF front-end for 2.5 GHz receivers
(Institute of Electrical and Electronics Engineers (IEEE), 2008)
Conference report
Open AccessThis paper presents a low power and low cost front end for a direct conversion 2.5 GHz ISM band receiver composed of a 16 kV HBM ESD protected LNA, differential Gilbert-cell mixers, and high-pass filters for DC offset ... -
A versatile CMOS transistor array IC for the statistical characterization of time-zero variability, RTN, BTI, and HCI
(2018-01-01)
Article
Open AccessStatistical characterization of CMOS transistor variability phenomena in modern nanometer technologies is key for accurate end-of-life prediction. This paper presents a novel CMOS transistor array chip to statistically ... -
Aging compensation in a class-A high-frequency amplifier with DC temperature measurements
(Multidisciplinary Digital Publishing Institute (MDPI), 2023-08-10)
Article
Open AccessOne of the threats to nanometric CMOS analog circuit reliability is circuit performance degradation due to transistor aging. To extend circuit operating life, the bias of the main devices within the circuit must be adjusted ... -
Aging in CMOS RF linear power amplifiers: an experimental study
(IEEE Microwave Theory and Techniques Society, 2021-02-01)
Article
Open AccessAn extensive experimental analysis of the hot carrier injection (HCI) and bias temperature instability (BTI) aging effects on RF linear power amplifiers (PAs) is presented in this article. Two different 2.45-GHz PA topologies ... -
Aging in CMOS RF linear power amplifiers: experimental comparison and modeling
(Institute of Electrical and Electronics Engineers (IEEE), 2019)
Conference report
Restricted access - publisher's policyThis paper characterizes experimentally the aging degradation experienced by two different 2.45 GHz power amplifier circuits of similar performance, implemented in a 65 nm CMOS technology. Results demonstrate the importance ... -
An ultra low-voltage RF front-end receiver for IoT devices
(Institute of Electrical and Electronics Engineers (IEEE), 2022)
Conference report
Restricted access - publisher's policyThis paper presents the design of an RF receiver front-end for IoT application, integrating a low noise amplifier (LNA) and an active mixer. The circuit is designed in 28-nm FDSOI technology, to operate on the ISM 2.4-2.5 ... -
Analysis and modelling of parasitic substrate coupling in CMOS circuits
(1995-10)
Article
Restricted access - publisher's policyAnalysis of the substrate coupling in integrated circuits is done taking into account technology and layout parameters for different types and location of transistors using a device-level simulator. The noise coupling ... -
Analysis of body bias and RTN-induced frequency shift of low voltage ring oscillators in FDSOI technology
(Institute of Electrical and Electronics Engineers (IEEE), 2018)
Conference report
Restricted access - publisher's policyElectronic circuits powered at ultra low voltages (500 mV and below) are desirable for their low energy and power consumption. However, RTN (Random Telegraph Noise)-induced threshold voltage variations become very significant ... -
Bluetooth: circuits, sistemes i aplicacions en l'entorn de les TIC
(Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2005-02)
Conference report
Open AccessEn el projecte s'han implementat uns mòduls formatius, que inclouen tant una vessant teòrica com una part experimental, que permetin a un estudiant de segon cicle de la ETSETB conèixer i desenvolupar aplicacions sobre un ... -
BPF-based thermal sensor circuit for on-chip testing of RF circuits
(Multidisciplinary Digital Publishing Institute (MDPI), 2021-01)
Article
Open AccessA new sensor topology meant to extract figures of merit of radio-frequency analog integrated circuits (RF-ICs) was experimentally validated. Implemented in a standard 0.35 µm complementary metal-oxide-semiconductor (CMOS) ... -
CMOS inverter performance degradation and its correlation with BTI, HCI and OFF state MOSFETs aging
(2022-05-01)
Article
Open AccessIn this work, CMOS inverters are subjected to electrical stress emulating a complete operation cycle and the shifts in the performance parameters (i.e., peak current and inversion voltage) evaluated. Moreover, degradation ... -
Contribució a l'estudi de l'acoblament per substrat en circuits integrats mixtes
(Universitat Politècnica de Catalunya, 1997-12-16)
Doctoral thesis
Open AccessL'acoblament de soroll a través del substrat en circuits integrats mixtos és un important problema que sovint limita les prestacions de la circuiteria analògica. Les característiques d'aquest tipus d'acoblament i els factors ... -
DC temperature measurements to characterize the central frequency and 3 dB bandwidth in mmW power amplifiers
(2015-11)
Article
Open AccessThis letter shows how a temperature sensor and a simple DC voltage multimeter can be used as instruments to determine the central frequency and 3 dB bandwidth of a 60 GHz linear power amplifier (PA). Compared to previous ... -
Desenvolupament d'un sistema de comunicacions integrat per part d'estudiants de 2on cicle de l'ETSETB de la Universitat Politècnica de Catalunya
(Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2005-02)
Conference report
Open AccessEl projecte ha consistit en el disseny i fabricació d’un circuit integrat que conté un receptor Bluetooth per a xarxes sense fils en una tecnologia CMOS de 0,35 m. Els objectius del projecte eren realitzar una experiència ... -
Desenvolupament de plataformes docents per a l'adquisició de mesures i el control de processos industrials
(2006)
Poster
Open Access -
Design of a 2.5-GHZ QVCO robust against high frequency substrate noise
(2011-07)
Article
Restricted access - publisher's policyThis work presents the design procedure followed to obtain a low-power voltage-controlled oscillator (VCO) robust against high-frequency substrate noise, using as a demonstrator a 2.5 GHz VCO with quadrature outputs (QVCO) ... -
Design of a broadband CMOS RF power amplifier to establish device-circuit aging correlations
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Conference report
Restricted access - publisher's policyThis paper presents the design of a Broadband CMOS RF Power Amplifier, suitable to be stressed at circuit level but with the possibility to be measured both at circuit and at device level. It allows establishing a relation ... -
Differential temperature sensors: Review of applications in the test and characterization of circuits, usage and design methodology
(Multidisciplinary Digital Publishing Institute (MDPI), 2019-11-05)
Article
Open AccessDifferential temperature sensors can be placed in integrated circuits to extract a signature ofthe power dissipated by the adjacent circuit blocks built in the same silicon die. This review paper firstdiscusses the singularity ...
