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A $2\times V_{\rm DD}$-Enabled Mobile-TV RF Front-End With TV-GSM Interoperability in 1-V 90-nm CMOS
2010
IEEE transactions on microwave theory and techniques
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A 2 DD -enabled mobile-TV RF front-end with TV-GSM interoperability is described. ...
It is an on/off-chip codesign employing externally three customized UHF/VHF preselect filters, an RF switch, and a balun. ...
Maloberti, University of Pavia, Pavia, Italy, and the staff of Circuits Multi-Projet (CMP), Grenoble, France, for assistance on packaging, and the reviewers for their valuable comments and suggestions. ...
doi:10.1109/tmtt.2010.2049769
fatcat:oozkww462rfexcjnudwyn3z5cy
Spectrum sharing radios
2006
IEEE Circuits and Systems Magazine
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The architecture of a wideband RF front-end enhanced with an antenna array for spatial filtering is shown in Figure 14 . ...
Commonly, this reduction would be achieved by filtering a strong signal through a notch filter. ...
where his research focus is new applications of integrated circuits as applied to personal communications systems with emphasis on wireless communications, low power design and the CAD tools necessary ...
doi:10.1109/mcas.2006.1648988
fatcat:xbxvpeo25vgy7m3wxkevi2sgau
EVM-based Performance Evaluation of Co-channel Interference Mitigation using Spatial Filtering for Digital MIMO Receivers
2020
2020 IEEE 92nd Vehicular Technology Conference (VTC2020-Fall)
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Digital Multiple-Input Multiple-Output (MIMO) receivers, exposed to strong co-channel interference, require high dynamic range Analog-to-Digital Converters (ADCs) and a highly linear RF front-end. ...
A 4-element 22 nm FD-SOI CMOS prototype MIMO Receiver chip is characterized with a linear 4-element dipole antenna array with half-wavelength spacing in the 2.4 GHz ISM-band. ...
This work is part of the TTW-research program MIRABEAM with project number 14689, which is financed by the Dutch Research Council (NWO). ...
doi:10.1109/vtc2020-fall49728.2020.9348716
fatcat:azoqickuife5vexgbgecmimsne
An 800-MHz–6-GHz Software-Defined Wireless Receiver in 90-nm CMOS
2006
IEEE Journal of Solid-State Circuits
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To cover the major frequency bands in use today, a wideband RF front-end, including the low-noise amplifier (LNA) and a wide tuning-range synthesizer, spanning over 800 MHz to 6 GHz is designed. ...
A software-defined radio receiver is designed from a low-power ADC perspective, exploiting programmability of windowed integration sampler and clock-programmable discrete-time analog filters. ...
Meanwhile, a small community of DSP researchers has continued to develop network-on-a-chip architectures for the SDR baseband, and others have explored ideas on the digital front-end that might follow ...
doi:10.1109/jssc.2006.884835
fatcat:qpdwvhx6qbf4tlwdhpfcsdrrje
Discrete-Time Mixing Receiver Architecture for RF-Sampling Software-Defined Radio
2010
IEEE Journal of Solid-State Circuits
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A discrete-time (DT) mixing architecture for RF-sampling receivers is presented. ...
Simulation shows a wideband 90 phase shift between I and Q outputs without systematic channel bandwidth limitation. ...
ACKNOWLEDGMENT The authors would like to thank Freeband Communications for research funding, NXP Semiconductors for chip fabrication, especially Domine Leenaerts, and Gerard Wienk and Henk de Vries from ...
doi:10.1109/jssc.2010.2053860
fatcat:7whwxe6adnhyjconx575pndqli
COGNITIVE RADIOS FOR DYNAMIC SPECTRUM ACCESS - Polyphase Multipath Radio Circuits for Dynamic Spectrum Access
2007
IEEE Communications Magazine
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ACKNOWLEDGMENTS The authors would like to thank Fokke Hoeksema and Jaap Haartsen for their contributions during discussions on this work, and Henk de Vries and Gerard Wienk for practical assistance during ...
However, as there is hardly any RF prefiltering, the linearity requirements on the RF front-end are very high. ...
Using this technique, a wideband and flexible power upconverter with a clean output spectrum has been realized on a CMOS chip, aiming at flexible radio transmitter application. ...
doi:10.1109/mcom.2007.358856
fatcat:47y6jxkqozbalfahtl3otptovm
Signal identification for adaptive spectrum hyperspace access in wireless communications systems
2014
IEEE Communications Magazine
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2015 pre-print arXiv:1501.05819v1 fatcat:dzzlvw3rdfaanosxtwwtzxgibiOther Versions
On the other hand, even though spectrum sensing can constitute a solid base to accomplish the reconfigurability and awareness goals of next generation networks, a new perspective is required to benefit ...
Therefore, spectrum sensing should evolve to a more general and comprehensive awareness providing mechanism, not only as part of CR systems but also as a communication environment awareness component of ...
Implementation of parallel filtering architectures such as filter banks along with a multiple antenna RF-front end such as the one introduced in [24] can lead to identification of opportunities quicker ...
doi:10.1109/mcom.2014.6917415
fatcat:e4zmixlawnc7rde3pvrtuvoj4a
Recent Advances on Radio-Frequency Design in Cognitive Radio
2016
International Journal of Antennas and Propagation
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With the growth of mobile data applications, the spectrum allocation is becoming very scarce. ...
, and the components that are expected to operate over a wide range of frequencies. ...
To stabilize their one-port oscillator, a notch-peak cancellation technique is proposed. ...
doi:10.1155/2016/9878475
fatcat:eeojgpe4obcblgtdgeixeoqqc4
Heart rate sensor node analysis for designing internet of things telemedicine embedded system
2017
Cogent Engineering
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by a detailed description of major areas of application of wearable sensors technology. ...
Applications described in this paper include those that focus on health and wellness, safety, home rehabilitation, assessment of treatment efficacy, and early detection of disorders. ...
The proposed sensor board includes transceivers, microcontroller and sensor front-end electronics, consumes power of 90 mW for transmit mode and less than 30 mW for receive mode when operating with supply ...
doi:10.1080/23311916.2017.1306152
fatcat:wgrha2zinvdifawvawee4d6n6e
The First Fully Integrated Quad-Band GSM/GPRS Receiver in a 90-nm Digital CMOS Process
2006
IEEE Journal of Solid-State Circuits
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The receiver meets a sensitivity of 110 dBm at 60 mA in a 1.4-V digital CMOS process in the presence of more than one million digital gates. ...
, single-chip, system-on-chip (SoC), transceiver. ...
Digital Front-End The digital front-end consists of a first rate change filter (RCF1) that provides anti-aliasing and decimation filtering to reduce the clock rate to . ...
doi:10.1109/jssc.2006.877271
fatcat:pbrla2gkn5e4fex3on7lvioeeq
A 0.46-mm$ ^{2}$ 4-dB NF Unified Receiver Front-End for Full-Band Mobile TV in 65-nm CMOS
2011
IEEE Journal of Solid-State Circuits
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A unified receiver front-end (RFE) for mobile TV covering the VHF-III, UHF and L bands is described. ...
2) a current-reuse mixer-low-pass-filter merges quadrature-/harmonic-rejection mixing and third-order current-mode post-filtering in one block, enhancing linearity and noise just where both are demanding ...
It integrates a wideband balun-LNA with VGC, dual I/Q mixers, a 4-/8-phase LOG and dual third-order BB LPFs merged with the mixers for current-reuse and current-mode filtering. ...
doi:10.1109/jssc.2011.2157264
fatcat:pyueteg2s5bydkpesqdv746lde
A cochlear heterodyning architecture for an RF fovea
2010
Proceedings of 2010 IEEE International Symposium on Circuits and Systems
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We describe a novel wireless receiver architecture that is a broadband generalization of narrowband heterodyning systems commonly used in radio. ...
When combined with our prior work on an RF cochlea, such architectures may be useful in cognitive radios for creating "RF foveas" that select the narrowband components present within wideband, but spectrally ...
It can be efficiently implemented using traveling-wave cochlear models, creating a cascaded cochleas or cochlear heterodyning architecture, and may be useful as a dynamic spectrum-sensing front end for ...
doi:10.1109/iscas.2010.5537711
dblp:conf/iscas/MandalS10
fatcat:zp7b66q3vzeopcfuoup5eu52lq
Through the Looking Glass II?Part 1 of 2: Trend Tracking for ISSCC 2013 [ISSCC Trends]
2013
IEEE Solid-State Circuits Magazine
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Improved linearity of receivers will ease the requirements on RF filtering of outof-band blockers, requiring, for example, only the use of a programmable notch filter in the RF path. ...
Digital architectures implementing radio functions are very efficient in deep-nm CMOS. In the past years, digital-PLLs have been developed for radio front ends. ...
doi:10.1109/mssc.2012.2228819
fatcat:fajtaag33ncxbcjn44mtky2bsy
Assessment and analysis of radio frequency compatibility among several global navigation satellite systems
2011
IET radar, sonar & navigation
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Page 58 of 62 RF Interference Impact Assessment on Global Navigation Satellite Systems References ...
The RF front end is the only hardware component in the receiver. ...
Receivers consist of an analog front-end and a digital part, responsible for code and carrier tracking. Sampling and quantization of the analog signal is performed resulting in the digital signal. ...
doi:10.1049/iet-rsn.2009.0241
fatcat:bukpeb6apbhyzb4qgsornybmzq
Wireless Receiver Architectures Towards 5G: Where Are We?
2017
IEEE Circuits and Systems Magazine
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With 5G posing different requirements to the mobile (handset) receiver than earlier generations, the receiver architecture needs to be carefully reconsidered. ...
A more flexible, low-power and high-performance receiver architecture than currently applied is needed for 5G, for which this framework becomes a useful tool. ...
This is also a direct RF to digital conversion approach, but combines the RF front-end with a feedback-type Delta-Sigma ADC [54] . ...
doi:10.1109/mcas.2017.2713306
fatcat:di6gatc7pbdw3jbwmjp3sd2vsq
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