Revistas
Revista:
IEEE SENSORS JOURNAL
ISSN:
1530-437X
Año:
2022
Vol.:
22
N°:
20
Págs.:
19797 - 19808
This article presents a wireless temperature sensor tag able to work in both fully passive mode and in semi-passive mode when assisted by a flexible thermoelectric generator (TEG). The sensor tag consists of an EPC C1G2/ISO 18000-6C ultrahigh-frequency (UHF) radio frequency identification (RFID) integrated circuit (IC) connected to a low-power microcontroller unit (MCU) that samples and collects the temperature from a digital temperature sensor. With a temperature gradient as low as 2.5 degrees C, the test results show that the TEG provides an output power of 400 mu W with an output voltage of 40 mV. By means of an up-converter in order to boost the TEG output voltage, this harvester supplies the power required to the sensor tag for a 2-conv/s data rate in semi-passive mode. Moreover, when the tag operates in semi-passive mode, a communication range of 22.2 m is measured for a 2-W effective radiated power (ERP) reader. To the best of our knowledge, the proposed TEG-assisted sensor tag shows the longest communication range and the only one that provides stable external power at low-temperature gradients. The measured performance and the chosen architecture allow using the wireless sensor in multiple industrial or biomedical applications.
Revista:
SENSORS
ISSN:
1424-8220
Año:
2022
Vol.:
22
N°:
20
Págs.:
7908
This work describes an energy-efficient monolithic Power Management Unit (PMU) that includes a charge pump adapted to photovoltaic cells with the capability of charging a large supply capacitor and managing the stored energy efficiently to provide the required supply voltage and power to low energy consumption wireless sensor nodes such as RFID sensor tags. The proposed system starts-up self-sufficiently with a light source luminosity equal to or higher than 500 lux using only a 1.42 cm(2) solar cell and integrating an energy monitor that gives the ability to supply autonomous sensor nodes with discontinuous operation modes. The system occupies an area of 0.97 mm(2) with a standard 180 nm CMOS technology. The half-floating architecture avoids losses of charging the top/button plate of the stray capacitors in each clock cycle. Measurements' results on a fabricated IC exhibit an efficiency above 60% delivering 13.14 mu W over 1.8 V. The harvested energy is enough to reach the communication range of a standard UHF RFID sensor tag up to 21 m.
Revista:
ELECTRONICS LETTERS
ISSN:
0013-5194
Año:
2021
Vol.:
57
N°:
11
Págs.:
430 - 432
This paper presents a millimeter-wave (mm-wave) V-band mixer. The source-driven transformer-coupled up-converter topology can alleviate the local oscillator (LO) leakage problem. The proposed V-band up-converter has been implemented on 65 nm CMOS technology. The experimental results show that the LO leakage level can be reduced to -43.1 dB. The up-converter occupies 0.11 mm(2) in area excluding signal pads.
Autores:
Lin, J. (Autor de correspondencia); Peng, H.; Yang, Q.; et al.
Revista:
ELECTRONICS
ISSN:
2079-9292
Año:
2021
Vol.:
10
N°:
5
Págs.:
598
In order to provide gigabit per second wireless communication, various standards have been proposed and implemented in recent years. Since the millimeter-wave (mm-wave) communication enables uncompressed high-speed data transfer with a minimum delay, it is considered to be the most promising technology to alleviate the pressure of the increasing demand of the spectrum resource. In this paper, a compact and highly efficient mm-wave transmitter is presented. The proposed injection-locked binary phase-shift keying (BPSK) transmitter can deliver a 10.2 dBm output with an efficiency over 10%. The proposed transmitter occupies 0.105 mm(2) chip area in 65 nm CMOS process.
Revista:
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS
ISSN:
1531-1309
Año:
2021
Vol.:
31
N°:
2
Págs.:
157 - 160
This letter presents the design of a 140-160 GHz vector-modulator-type phase shifter, integrated in a 55-nm BiCMOS technology. The circuit is optimized to minimize the occupied area and maximize the linearity, facilitating its integration in D-band phased arrays. Test results show an average insertion loss of 4.5 dB, an OP 1 dB of -3.7 dBm, and rms gain/phase errors lower than 1.4 dB and 7.5 degrees. The circuit core occupies 0.05 mm(2), consuming less than 66 mW of dc power.
Autores:
0000-0003-4431-7301; 0000-0003-4623-4382; dgolpe@tecnun.es; et al.
Revista:
MICROMACHINES
ISSN:
2072-666X
Año:
2020
Vol.:
11
N°:
11
Págs.:
1013
In this paper, a novel Radio-Frequency Identification (RFID) tag for "pick to light" applications is presented. The proposed tag architecture shows the implementation of a novel voltage limiter and a supply voltage (VDD) monitoring circuit to guarantee a correct operation between the tag and the reader for the "pick to light" application. The feasibility to power the tag with different photovoltaic cells is also analyzed, showing the influence of the illuminance level (lx), type of source light (fluorescent, LED or halogen) and type of photovoltaic cell (photodiode or solar cell) on the amount of harvested energy. Measurements show that the photodiodes present a power per unit package area for low illuminance levels (500 lx) of around 0.08 mu W/mm(2), which is slightly higher than the measured one for a solar cell of 0.06 mu W/mm(2). However, solar cells present a more compact design for the same absolute harvested power due to the large number of required photodiodes in parallel. Finally, an RFID tag prototype for "pick to light" applications is implemented, showing an operation range of 3.7 m in fully passive mode. This operation range can be significantly increased to 21 m when the tag is powered by a solar cell with an illuminance level as low as 100 lx and a halogen bulb as source light.
Revista:
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
ISSN:
0018-9480
Año:
2020
Vol.:
68
N°:
1
Págs.:
339 - 351
Changes in ambient temperature or chip temperature result in variations in the in-phase and quadrature (I/Q) gain and phase imbalance. As a consequence, the overall system performance can be seriously degraded, especially in wideband multi-Gb/s systems, where the I/Q imbalance is highly selective in frequency. Unless appropriately considered, temperature drifts can decrease the image rejection ratio (IRR) of the transmitter. This article presents a novel compensation method for temperature-dependent transmitter I/Q imbalance over the entire temperature range. It consists of a simple predistortion technique that, based on a few factory characterizations of gain and phase imbalance, is able to estimate and correct the I/Q imbalance at any temperature, without interrupting the normal functionality of the system. The proposed method is assessed in a 2-GHz, 64-QAM transceiver implemented with real hardware. The measurements show that the proposed approach is able to keep the IRR greater than 35 dB in the entire bandwidth and an error vector magnitude (EVM) lower than 3 over a temperature range of 70 C.
Revista:
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS
ISSN:
1531-1309
Año:
2019
Vol.:
29
N°:
5
Págs.:
351 - 353
This letter presents the design of a compact, wideband, and high-efficiency E-band power amplifier, integrated in a 0.13-mu m BiCMOS process and occupying 0.3 mm(2). It consists of a single-stage balanced amplifier, with HBT transistors in cascode configuration. The power amplifier (PA) is biased in class AB, with a dc consumption of 156 mW. A compact bias circuit is employed to achieve temperature robustness, while the layout is optimized for wideband and highly efficient operation. Measurements show a peak power gain of 15.3 dB at 83 GHz, with a 29.3% fractional bandwidth and less than 1-dB degradation over a 25 degrees C-85 degrees C temperature range. The peak output power at saturation and 1-dB compression is 18.6 and 13.6 dBm, respectively, and the maximum power-added efficiency (PAE) is 30.7%.
Revista:
INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS
ISSN:
0098-9886
Año:
2018
Vol.:
46
N°:
3
Págs.:
366 - 374
This paper presents the design of a compact and wide bandwidth millimeter-wave power detector, integrated at the output of an E-band power amplifier and implemented in a 55-nm SiGe BiCMOS process. It is based on a nonlinear PMOS detector core, and its measured output voltage tracks the output power of the PA from 67 to 90GHz. It provides an insertion loss lower than 0.2dB, and its responsivity can be tuned between 8 and 17V/W. The output bandwidth is bigger than 3GHz, which allows built-in self-test when transmitting multigigabit millimeter-wave signals.
Revista:
ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING
ISSN:
0925-1030
Año:
2017
Vol.:
91
N°:
3
Págs.:
433 - 444
This work presents a nonius time to digital converter (TDC) adapted to a passive RF identification (RFID) pressure sensor tag. The proposed converter exploits the characteristics of time-based sensor interfaces and allows reducing voltage supply and power consumption while maintaining resolution and conversion efficiency. The nonius TDC has been designed and fabricated using the TSMC 90 nm standard CMOS technology. The main blocks of the converter are described and both the resolution adjustment and measurement processes are explained in detail. Measurement results show 10.49 bits of effective resolution for an input time range from 28.19 to 42.93 mu s. With a sampling rate of 19 KS/s the converter has a conversion efficiency of 0.395 pJ/bit with a voltage supply of only 0.6 V. This characteristics in the proposed nonius TDC enables an increased reading range of the passive RFID pressure sensor tag.
Revista:
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS
ISSN:
1531-1309
Año:
2017
Vol.:
27
N°:
5
Págs.:
512 - 514
This letter presents a 15-21 GHz I/Q upconverter, based on two Gilbert-cell mixers with an on-chip wideband linearization loop that extends the linear region and allows power efficient operation at backoff power levels. A quadrature LO signal is generated using an integrated two-stage polyphase filter. Measurements show a conversion gain of -5.5 dB, an output 1-dB compression point of 0 dBm, and an image suppression of 40 dB over the 6-GHz output bandwidth. An error vector magnitude of 3.5% is obtained for a 10-Gb/s 64-QAM signal with a bandwidth of 2 GHz. The circuit is integrated in a 55-nm BiCMOS process and occupies 1.07 mm2. The dc power consumption is 61 mW.
Revista:
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
ISSN:
0018-9480
Año:
2017
Vol.:
65
N°:
8
Págs.:
2990 - 3001
This paper presents the design of a wideband and high-linearity E-band transmitter integrated in a 55-nm SiGe BiCMOS technology. It consists of a double-balanced bipolar ring mixer which upconverts a 16-21-GHz IF signal to the 71-76- and 81-86-GHz bands by the use of a 55/65-GHz local oscillator signal, followed by a broadband power amplifier which employs 2-way output power combining using an integrated low-loss balun transformer. The transmitter exhibits an average conversion gain of 24 dB and 22 dB at the 71-76- and 81-86-GHz bands, respectively, with an output 1-dB compression point greater than 14 and 11.5 dBm at each band. A maximum output power of 16.8 dBm is measured at 71 GHz. The dc power consumption is 575 mW. The presented transmitter is used to demonstrate the transmission of a 10.12-Gb/s 64 quadrature amplitude modulated signal with a spectral efficiency of 5.06 bit/s/Hz, which makes it suitable for use in future highcapacity backhaul and fronthaul point-to-point links.
Autores:
Liao, D.; Wang, H.; Foster Dai, F.; et al.
Revista:
IEEE JOURNAL OF SOLID-STATE CIRCUITS
ISSN:
0018-9200
Año:
2017
Vol.:
52
N°:
5
Págs.:
1210 - 1220
Revista:
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
ISSN:
0018-9480
Año:
2017
Vol.:
65
N°:
11
Págs.:
4758 - 4769
This paper addresses the estimation and compensation of I/Q imbalance, one of the most prominent impairments found in wideband zero-intermediate frequency transceivers (TRxs). The I/Q imbalance encountered in this kind of TRx comprises not only frequency-selective gain and phase imbalance but also delay imbalance. Unless appropriate compensation is applied, the I/Q imbalance significantly degrades the performance of a communication system. This paper presents a novel compensation technique for transmitter I/Q imbalance based on built-in-self-calibration, a low cost and robust compensation technique that enables manufacturing as well as in-field calibration with low computational complexity. The method's performance is evaluated in a TRx with 64-quadratic-amplitude modulation and 2 GHz of bandwidth implemented with real hardware. The measurements show that the proposed technique achieves an image rejection ratio greater than 35 dB in the entire 2 GHz bandwidth and an error vector magnitude lower than 3%.
Revista:
IEEE SENSORS JOURNAL
ISSN:
1530-437X
Año:
2017
Vol.:
17
N°:
5
Págs.:
1471 - 1478
The number of wireless medical wearables has increased in recent years and is revolutionizing the current healthcare system. However, the state-of-the-art systems still need to be improved, as they are bulky, battery powered, and so require maintenance. On the contrary, battery-free wearables have unlimited lifetimes, are smaller, and are cheaper. This paper describes a design of a battery free wearable system that measures the skin temperature of the human body while at the same time collects energy from body heat. The system is composed of an UHF RFID temperature sensor tag located on the arm of the patient. It is assisted with extra power supply from a power harvesting module that stores the thermal energy dissipated from the neck of the patient. This paper presents the experimental results of the stored thermal energy, and characterizes the module in different conditions, e.g., still, walking indoors, and walking outdoors. Finally, the tag is tested in a fully passive condition and when it is power assisted. Our experimental results show that the communication range of the RFID sensor is improved by 100% when measurements are done every 750 ms and by 75% when measurements are done every 1000 ms when the sensor is assisted with the power harvesting module.
Revista:
INTEGRATION-THE VLSI JOURNAL
ISSN:
0167-9260
Año:
2016
Vol.:
52
Págs.:
208 - 216
This paper describes a method to design mmW PAs, by modeling the electromagnetic behavior of all the passive structures and the layout interconnections using a 3D-EM solver. It allows the optimization of the quality factor of capacitors (Q-factors > 20 can be obtained at 80 GHz), the access points and arrangement of the power transistor cells. The method is applied to the design and optimization of an E-Band PA implemented in a 55 nm SiGe BiCMOS technology. The PA presents a maximum power gain of 21.7 dB at 74 GHz, with a 3-dB bandwidth covering from 72.6 to 75.6 GHz. The maximum output P1dB is 13.8 dBm at 75 GHz and the peak PAE is 14.1%. (C) 2015 Elsevier B.V. All rights reserved.
Revista:
SENSORS
ISSN:
1424-8220
Año:
2015
Vol.:
15
N°:
9
Págs.:
21554 - 21566
This paper presents an ultra low-power and low-voltage pulse-width modulation based ratiometric capacitive sensor interface. The interface was designed and fabricated in a standard 90 nm CMOS 1P9M technology. The measurements show an effective resolution of 10 bits using 0.5 V of supply voltage. The active occupied area is only 0.0045 mm(2) and the Figure of Merit (FOM), which takes into account the energy required per conversion bit, is 0.43 pJ/bit. Furthermore, the results show low sensitivity to PVT variations due to the proposed ratiometric architecture. In addition, the sensor interface was connected to a commercial pressure transducer and the measurements of the resulting complete pressure sensor show a FOM of 0.226 pJ/bit with an effective linear resolution of 7.64 bits. The results validate the use of the proposed interface as part of a pressure sensor, and its low-power and low-voltage characteristics make it suitable for wireless sensor networks and low power consumer electronics.
Revista:
INTERNATIONAL JOURNAL OF COMMUNICATION
ISSN:
1998-4480
Año:
2015
Vol.:
9
Págs.:
98 - 104
Revista:
INTERNATIONAL JOURNAL ON ADVANCES IN TELECOMUNICATIONS
ISSN:
1942-2601
Año:
2015
Vol.:
8
N°:
1-2
Págs.:
25 - 34
Millimeter wave links are an attractive solution for mobile network backhaul. In order to cope with the requirements of future networks, these millimeter wave links should achieve Gigabit data rates. These data rates can be achieved by using wide-band and high order modulations in E-Band. Heterodyne architectures are good candidates for integrated transceivers, but, the design of integrated transceivers at these frequencies is a challenging issue. An important source of degradation is I/Q imbalance, which can significantly reduce the performance of a communication system with zero-second-IF transceivers if it is not appropriately compensated. The article analyzes the source of this IQ imbalance and proposes the use of different digital processing techniques, including a linear adaptive equalizer scheme. The performance of the transceiver is analyzed at system level by means of simulations. The results presented in the article suggest that the use of those techniques is able to mitigate the impact of the IQ imbalance effects, in order to allow the use of a high-order modulation such as 64QAM.
Autores:
D'Souza, S.; Hsiao, F.; Tang, A.; et al.
Revista:
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
ISSN:
1549-7747
Año:
2013
Vol.:
60
N°:
8
Págs.:
457 - 461
Revista:
MICROELECTRONICS JOURNAL
ISSN:
0026-2692
Año:
2013
Vol.:
44
N°:
10
Págs.:
912 - 919
This paper presents a comparative study on time-to-digital converters (TDC) for their use as part of an RFID tag sensor. TDCs can digitize any physical magnitude previously converted to time delay and exploit the benefits of time domain conversion: high resolution with reduced power consumption and low voltage operation. Three different TDC architectures are analyzed and a calibration strategy tailored for RFID sensing applications is proposed in order to account for process variations. Converters implemented using a 0.18 mu m CMOS standard process have been analyzed at transistor level for human body temperature sensing applications. An accuracy of 0.011 degrees C is achieved in the range from 35 degrees C to 43 degrees C for the nonius TDC with a power consumption of only 4.1 nW at 10 samples per second from a 1.8 V voltage supply. (C) 2012 Elsevier Ltd. All rights reserved.
Revista:
MICROELECTRONICS JOURNAL
ISSN:
0026-2692
Año:
2012
Vol.:
43
N°:
10
Págs.:
708 - 713
This paper presents a low power voltage limiter design for avoiding possible damages in the analog front-end of a RFID sensor due to voltage surges whenever readers and tags are close. The proposed voltage limiter design takes advantage of the implemented bandgap reference and voltage regulator blocks in order to provide low deviation of the limiting voltage due to temperature variation and process dispersion. The measured limiting voltage is 2.9 V with a voltage deviation of only +/- 0.065 V for the 12 measured dies. The measured current consumption is only 150 nA when the reader and the tag are far away, not limiting the sensitivity of the tag due to an undesired consumption in the voltage limiter. The circuit is implemented on a low cost 2P4M 0.35 mu m CMOS technology. (C) 2012 Elsevier Ltd. All rights reserved.
Revista:
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
ISSN:
0018-9480
Año:
2012
Vol.:
60
N°:
5
Págs.:
1342 - 1352
A self-healing two-stage millimeter-wave broadband power amplifier (PA) with on-chip amplitude/phase compensation is realized in 65-nm CMOS. The amplitude and phase compensations are accomplished by using feedback bias/capacitive schemes to extend the linear operation region and optimize the PA efficiency. Tunable control knobs are inserted in the linearization block to enhance the PA performance yield against process/temperature variations and device ageing effects. This prototype shows a 5.5-dB improvement of the output 1-dB compression point (P-1dB) and a less than 2% chip-to-chip gain variation. At a 1-V supply, the differential PA achieves a saturation output power (P-sat) of 14.85 dBm with a peak power-added-efficiency (PAE) of 16.2%. With the amplitude compensation, P-1dB is increased to 13.7 dBm. With the phase compensation, the output phase variation is decreased to less than 0.5 degrees. To the best of our knowledge, this prototype provides the highest P-sat and P-1dB with simultaneously high PAE from a single PA reported to date. The PA delivers a linear gain of 9.7 dB and has a 7-GHz 3-dB bandwidth from 55.5 to 62.5 GHz with a compact total area of 0.042 mm(2).
Revista:
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
ISSN:
0018-9480
Año:
2011
Vol.:
59
N°:
9
Págs.:
2318 - 2330
A decreasing-sized pi-model electrostatic discharge (ESD) protection structure is presented and applied to protect against ESD stresses at the RF input pad of an ultra-low power CMOS front-end operating in the 2.4-GHz industrial-scientific-medical band. The proposed ESD protection structure is composed of a pair of ESD devices located near the RF pad, another pair close to the core circuit, and a high-quality integrated inductor connecting these two pairs. This structure can sustain a human body-model ESD level higher than 16 kV and a machine-model ESD level higher than 1 kV without degrading the RF performance of the front-end. A combined on-wafer transmission line pulse and RF test methodology for RF circuits is also presented confirming previous results. The front-end implements a zero-IF receiver. It has been implemented in a standard 2P6M 0.18-mu m CMOS process. It exhibits a voltage gain of 24 dB and a single-sideband noise figure of 8.4 dB, which make it suitable for most of the 2.4-GHz wireless short-range communication transceivers. The power consumption is only 1.06 mW from a 1.2-V voltage supply.
Revista:
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
ISSN:
1549-7747
Año:
2011
Vol.:
58
N°:
12
Págs.:
842 - 846
This paper describes the modeling and the design of a ladder-structured multilayer-coplanar-waveguide-based tunable differential inductor with wide tuning range and high quality factor. The impacts of process variation on the performance of the inductor and active components are mitigated through postfabrication tuning. A configurable 77-GHz voltage-controlled oscillator (VCO) with a tunable inductor has been designed and implemented in a 65-nm single-poly six-metal bulk CMOS technology. Techniques for tuning the center frequency and increasing the tuning range are described. Under a 1.5-V supply, the measured VCO can be tuned from 67.3 to 77.9 GHz, i.e., 15.8%, while consuming 14.3 mW; the output power is -4.5 dBm, and the phase noise at a 10-MHz offset from the 77-GHz carrier is -108.4 dBc/Hz. This configurable VCO provides a wide tuning range and immunity to process variation.
Revista:
IET MICROWAVES ANTENNAS AND PROPAGATION
ISSN:
1751-8725
Año:
2011
Vol.:
5
N°:
7
Págs.:
795 - 803
A model for fully integrated CMOS linear power amplifiers (PAs) is presented. The model predicts the performance of the CMOS PA in terms of power-added efficiency (PAE) and output power (P-OUT) with respect to the main design parameters, such as supply voltage, current consumption, gain and inductor quality factors (Qs). In order to demonstrate the usefulness of the model, several studies showing the impact of these design parameters on the PA performance are presented. Finally, a 0.18 mu m fully integrated CMOS PA has been fabricated and compared with the model, showing good agreement. The fabricated PA presents 23 dBm of 1 dB compression point (P-1dB) and 27 dBm of saturated power (P-SAT) at 4.2 GHz with high maximum PAE of 32%.
Revista:
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS
ISSN:
1531-1309
Año:
2010
Vol.:
20
N°:
12
Págs.:
678 - 680
Revista:
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
ISSN:
1549-7747
Año:
2010
Vol.:
57
N°:
2
Págs.:
95 - 99
A long-range UHF RF identification (RFID) sensor has been designed using a 0.35-mu m CMOS standard process. The power-optimized tag, combined with the ultralow-power temperature sensor, allows an ID and a temperature reading range of 2 m from a 2-W effective radiated power output power reader. The temperature sensor is based on a ring oscillator, where the temperature dependence of the oscillation frequency is used for thermal sensing. The temperature sensor exhibits a resolution of 0.035 degrees C and an inaccuracy value lower than 0.1 degrees C in the range from 35 degrees C to 45 degrees C after two-point calibration. The average power consumption of the temperature sensor is only 110 nW at ten conversions per second while keeping a high resolution and accuracy. These properties allow the use of the RFID as a batteryless sensor in a wireless human body temperature monitoring system.
Revista:
INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS
ISSN:
0098-9886
Año:
2010
Vol.:
38
N°:
2
Págs.:
123 - 129
Low-frequency (flicker) noise is one of the most important issues in the design of direct-conversion zero-IF front-ends. Within the front-end building blocks, the direct-conversion mixer is critical in terms of flicker noise, since it performs the signal down-conversion to baseband. This paper analyzes the main sources of low-frequency noise in Gilbert-cell-based direct-conversion mixers, and several issues for minimizing the flicker noise while keeping a good mixer performance in terms of gain, noise figure and power consumption are introduced in a quantitative manner. In order to verify these issues, a CMOS Gilbert-cell-based zero-IF mixer has been fabricated and measured. A flicker noise as low as 10.4 dB is achieved (NF at 10 kHz) with a power consumption of only 2 mA from a 2.7 V power supply. More than 14.6 dB conversion gain and noise figure lower than 9 dB (DSB) are obtained from DC to 2.5 GHz with an LO power of -10 dBm, which makes this mixer suitable for a multi-standard low-power zero-IF front-end. Copyright
Nacionales y Regionales
Título:
Adquisicion de Analizador de espectro para caracterizacion de circuitos en logitudes de ondas milimetricas.
Código de expediente:
2020-CIEN-000099-01
Investigador principal:
Roque José Berenguer Pérez
Financiador:
DIPUTACIÓN FORAL DE GIPUZKOA
Convocatoria:
Programa Red guipuzcoana de Ciencia, Tecnología e Innovación 2020
Fecha de inicio:
15/07/2020
Fecha fin:
30/09/2021
Importe concedido:
27.965,00€
Otros fondos:
-
Título:
Radiómetros avanzados en rango milimétrico para instrumentos de observación terrestre de nueva generación para predicción meteorológica y evaluación de cambio climático
Código de expediente:
PID2019-109984RB-C44
Financiador:
MINISTERIO DE CIENCIA E INNOVACIÓN
Convocatoria:
2019 AEI PROYECTOS I+D+i (incluye Generación del conocimiento y Retos investigación)
Fecha de inicio:
01/06/2020
Fecha fin:
01/01/2023
Importe concedido:
106.117,00€
Otros fondos:
-
Título:
Sistema sensor para jaulas de piscifactoría (FICASES)
Código de expediente:
TEC2017-89403-C2-1-R
Financiador:
MINISTERIO DE CIENCIA E INNOVACIÓN
Convocatoria:
2017 MINECO RETOS INVESTIGACION. PROYECTOS DE I+D+i
Fecha de inicio:
01/01/2018
Fecha fin:
30/09/2021
Importe concedido:
124.630,00€
Otros fondos:
-