Wideband 2 to 6 GHz RF Front-End With Blocker Filtering

Kaltiokallio, Mikko; Saari, Ville; Kallioinen, Sami; Pärssinen, Aarno; Ryynänen, Jussi

doi:10.1109/jssc.2012.2191348

Cited by 16 publications

(8 citation statements)

References 19 publications

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“…In contrast to the core NMOS devices with , the employed device type offers a lower for the limited gate overdrive swing despite its higher minimum . The passive downconversion mixers use the same NMOS switch size, and are driven by a post-LNA boosted source-follower buffer (Gm) [13]. This buffer separates the N-path filtering and downconversion mixing, thus allowing for comparative on/off evaluation of the N-path filter's characteristics.…”

Section: Resultsmentioning

confidence: 99%

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Analysis and Design of N-Path Filter Offset Tuning in a 0.7–2.7-GHz Receiver Front-End

Ostman

Englund

Viitala

et al. 2015

IEEE Trans. Circuits Syst. I

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N-path techniques have become a popular candidate alternative to external pre-selection filtering in wireless receivers. Their main attraction lies in enabling tunable on-chip high-filters, with straightforward migration from one CMOS node to another. However, parasitic capacitance at the N-path filter input offsets the bandpass response from the desired center frequency in wideband circuits. In this paper, we focus on an LNA-first receiver and show that the offset at the LNA output varies in magnitude depending on LNA and filter load impedance properties. An offset-tuning approach is then evaluated for its effects on receiver gain and noise and to obtain design guidelines. We propose a digitally controllable implementation that preserves front-end gain and linearity, with a small penalty on receiver NF. A programmable 0.7-2.7-GHz front-end in 40-nm CMOS verifies the functionality. At 1.7 GHz, the front-end has a gain of 37 dB, a NF of 5.2 dB, and an out-of-band IIP3 of 1 dBm. Mikko Kaltiokallio (S'07-M'13) received the M.Sc. degree in electrical engineering from the Helsinki University of Technology, Espoo, Finland, in 2006. In 2014 he received the D.Sc. degree in the same field at Aalto University, Espoo, Finland. From 2005 to 2013, he was with the Electronic Circuit Design Laboratory, Helsinki University of Technology and later Aalto University. Since 2013, he has been with the Nokia Corp. working with front-end circuits. His research interests lie in the wideband high-linearity radio front-ends, mixed-signal RF and baseband design, and quadrature and LO buffering circuits. Kari Stadius (S'95-M'03) received the M.Sc., Lic. Tech., and D.Sc. degrees in electrical engineering from the Helsinki University of Technology, Helsinki, Finland, in 1994, 1997 He is currently working as a staff scientist at the Department of Micro-and Nanosciences, Aalto University School of Electrical Engineering, Finland. His research interests include CMOS RF circuits for communications with special emphasis on frequency synthesis, analog and mixed-mode circuit design, and new emerging RF technologies such as graphene. He has authored or coauthored over 70 refereed journal and conference papers in the areas of analog and RF circuit design.Kimmo Koli (M'95) was born in Karuna, Finland, in 1964. He received his M.Sc., Licentiate in Technology, and D.Sc. degrees in electrical on audio and sensor interfaces and wireless tranceivers. From 2008 to 2013, he joined STMicroelectronics (later ST-NXP Wireless and ST-Ericsson) and is currently with Ericsson, Turku, Finland, focusing on RF design blocks for wireless applications.Dr. Koli has authored or coauthored over 40 journal articles and conference papers and holds several patents. He has served for several years as a member of the technical program committee of IEEE International Solid-State Circuits

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Section: Resultsmentioning

confidence: 99%

“…The problem of removing the offset has been approached in several applications. For a feedback receiver structure, [13] uses an N-path closed-loop polyphase notch filter to provide a proper response. For an N-path mixer-first receiver, [6] proposes the use of I/Q cross-connected baseband resistors to provide proper input matching at .…”

Section: Offset Tuningmentioning

confidence: 99%

Analysis and Design of N-Path Filter Offset Tuning in a 0.7–2.7-GHz Receiver Front-End

Ostman

Englund

Viitala

et al. 2015

IEEE Trans. Circuits Syst. I

Self Cite

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“…Based on available articles, WB LNTA was another proposed wideband structure in the 2010s that usually had power dissipation problem [252, 276, 287, 297, 335, 339], compared to the optimum UWB LNAs in Table 3. Studying [161–200, 201–250, 251–300, 301–361] shows that the LNTA idea for wideband applications was not welcomed in the 2010s by engineers; infact, most of the works focussed on WB/UWB LNAs. But note that this issue does not mean that LNTA is a useless idea.…”

Section: Discussionmentioning

confidence: 99%

“…In the 2010s, MOSFET scaling reached 5 nm from 32 nm [30] and many studies [161–200, 201–250, 251–300, 301–361] were carried out by focussing on improving the mentioned topologies and techniques which were presented in the 2000s for wideband LNA. As examples, we can refer to ‘the noise/distortion cancelation topologies’ [164, 167, 173, 181, 189, 192, 194, 195, 201, …”

Section: Uwb Lnamentioning

confidence: 99%

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Ultrawideband LNA 1960–2019: Review

Shahrabadi

2021

IET Circuits, Devices & Syst

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To the best of the author's knowledge, several studies during 1960-2019 were carried out on wideband and ultrawideband LNAs just to render optimum LNAs for SAW-less Radio-Frequency Integrated Circuits (RFICs) but none of these works reviewed and taught the proceedings of these six decades, hence the lack of a comprehensive review is quite noticeable. This article specifically studies the challenges and solutions of designing UWB LNA by reviewing topologies and techniques such as inductive peaking, noise and distortion cancellation, g m -boosting, active inductor and notch filter. Its historical aspect illustrates when the idea of wideband LNA was born and how it changed to ultrawideband LNA, and its tutorial aspect discusses circuits and achievements to present optimum LNAs in Complementary MOS (CMOS), BiCMOS and High-Electron-Mobility Transistor (HEMT) technologies. This work describes the endeavours of engineers in reaching UWB LNA from narrowband LNA during six decades that have great importance as a chapter in understanding this topic because it teaches all topologies, techniques, circuits and related events in a historical narrative for trained readers who are not experts on this topic. | UWB LNA | In the 1960sWhere did the idea of 'transistorised wideband LNA' originate from? It seems that everything goes back to the 1960s when This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Wideband Receiver Design

Fahim¹

2015

Radio Frequency Integrated Circuit Design for Cognitive Radio Systems

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Wideband 2 to 6 GHz RF Front-End With Blocker Filtering

Cited by 16 publications

References 19 publications

Analysis and Design of N-Path Filter Offset Tuning in a 0.7–2.7-GHz Receiver Front-End

Analysis and Design of N-Path Filter Offset Tuning in a 0.7–2.7-GHz Receiver Front-End

Ultrawideband LNA 1960–2019: Review

Wideband Receiver Design

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