A variable gain RF front-end, based on a Voltage-Voltage feedback LNA, for multistandard applications

Rossi, Paolo; Liscidini, Antonio; Brandolini, M.; Svelto, F.

doi:10.1109/jssc.2005.843631

Cited by 68 publications

(24 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Cognitive or reconfigurable radio [1,2,3] is a promising solution with a high level of hardware sharing. Within this architecture, a wideband low noise amplifier (LNA) [4,5] can be utilized to cover all needed frequency bands.…”

Section: Introductionmentioning

confidence: 99%

“…But it suffers from serious out-of-band interferences. A reconfigurable one [1,2,3,6,7] with frequency selectivity in both input and output is able to receive only the desired frequency band, thus improve the immunity of the receiver from out-of-band interferers.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, keeping both input matching and output tank centered on the desired frequency in all conditions over PVT is challenging. Common gate (CG) topology has been investigated as reconfigurable LNA in [1,2,3]. In [2], an inverse-amplifier based positive feedback path is added between output and input of CG-LNA to achieve a tunable narrow-band input matching, but this method has unstability issues.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A CMOS dual-feedback reconfigurable low noise amplifier with improved stability and reduced noise

Wang

Liu

et al. 2017

IEICE Electron. Express

View full text Add to dashboard Cite

This paper presents a multiband reconfigurable low noise amplifier (LNA) based on dual-feedback common-gate (CG) configuration. The input impedance of the LNA is tuned synchronously with output load due to the reflection of load impedance to input by the proposed source-follower positive feedback method. This method also improves the stability of the LNA, which is an issue in conventional positive feedback methods. In addition, both the source-follower positive feedback and the negative feedback by capacitor cross-coupling help to reduce noise figure. Fabricated in TSMC 0.18 µm CMOS process, measurement results show the LNA is reconfigurable from 1.833 GHz to 2.47 GHz, with S11 automatically centered with S21. It achieves a power gain from 15 to 17.4 dB, 1.62 dB minimum NF, and −4.4 dBm maximum IIP3. 10.5 mA current is consumed from 1.8 V supply.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A CMOS dual-feedback reconfigurable low noise amplifier with improved stability and reduced noise

Wang

Liu

et al. 2017

IEICE Electron. Express

View full text Add to dashboard Cite

show abstract

“…In order to increase flexibility and functionality of the RF transceivers, cost-effective and multistandard RF design solutions are needed [1]- [4]. The challenge is to design a multimode, multiband receiver that fulfills the requirements of different standards simultaneously [5], [6].…”

Section: Introductionmentioning

confidence: 99%

Receiver Front-End Circuits for Future Generations of Wireless Communications

Sanduleanu¹,

Vidojkovic²,

Vidojkovic³

et al. 2008

IEEE Trans. Circuits Syst. II

View full text Add to dashboard Cite

Document VersionPublisher's PDF, also known as Version of Record (includes final page, issue and volume numbers)Please check the document version of this publication:• A submitted manuscript is the author's version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website.• The final author version and the galley proof are versions of the publication after peer review.• The final published version features the final layout of the paper including the volume, issue and page numbers. Link to publication General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal ? Take down policyIf you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. Abstract-In this paper, new receiver concepts and CMOS circuits for future wireless communications applications are introduced. The concepts derived are applied to a few classes of wireless communications standards that are broad-band at radio frequencies and/or require a broad-band baseband circuitry. Multimode multiband operation and adaptivity as key requirements for future generation receivers are highlighted throughout the paper. The tradeoffs between power consumption, noise figure and linearity performance of low-noise amplifiers, mixers, and intermediate frequency filters are considered too.Index Terms-Broad-band radio frequency (RF), multiband circuits, multimode circuits, RFCMOS.

show abstract

“…Negative linear feedback estimates the error caused by non-linearities, inverts signal error, and adds it back to the input. The reduction in non-linearity is large as long as the gain of the feedback loop is large [15,17], while a large loop gain degrades stability. On the other hand, utilizing feedback has some various advantages such as sensitivity reduction to process variations and temperature (PVT), bandwidth enhancement, and adjustable gain reduction [6].…”

mentioning

confidence: 99%

High IIP3 and Low-Noise CMOS Mixer Using Non-linear Feedback Technique

Amirabadi

Chehelcheraghi

Kamarei

2011

Circuits Syst Signal Process

View full text Add to dashboard Cite

A third-order intermodulation cancelation technique using a non-linear feedback is proposed to design a low-power low-distortion mixer in a 65 nm standard CMOS technology. The IM3 cancelation is achieved by estimating distorting error at a non-linear feedback element and subtracting it from the input. The linearization technique is utilized in the input trans-conductance of the mixer. The circuit functionality is analyzed using Volterra series. The covering frequency range of the mixer is 800 MHz to 5 GHz. The technique increases the input-referred third-order intercept point (IIP3) and input 1 dB compression point to +16.4 dBm and −1.87 dBm, respectively. It obtains a gain of 9 dB and an input-referred noise of 1.84 nV/ √ Hz while consumes 8.75 mA from 1.2 V supply. The layout of the mixer occupies 0.315 mm × 0.296 mm of silicon area.

show abstract

A variable gain RF front-end, based on a Voltage-Voltage feedback LNA, for multistandard applications

Cited by 68 publications

References 23 publications

A CMOS dual-feedback reconfigurable low noise amplifier with improved stability and reduced noise

A CMOS dual-feedback reconfigurable low noise amplifier with improved stability and reduced noise

Receiver Front-End Circuits for Future Generations of Wireless Communications

High IIP3 and Low-Noise CMOS Mixer Using Non-linear Feedback Technique

Contact Info

Product

Resources

About