6.5 A 3dB-NF 160MHz-RF-BW Blocker-Tolerant Receiver with Third-Order Filtering for 5G NR Applications

Montazerolghaem, Mohammad Ali; Pires, Sergio; Vreede, L.C.N. de; Babaie, Masoud

doi:10.1109/isscc42613.2021.9365849

Cited by 21 publications

(5 citation statements)

References 7 publications

(9 reference statements)

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“…Compared with prior art with a similar operating frequency range and BW [3][4][5] in Fig. 19.1.6, this work demonstrates higher IB linearity and sharper filtering roll-off.…”

mentioning

confidence: 78%

19.1 A 300MHz-BW, 27-to-38dBm In-Band OIP3 sub-7GHz Receiver for 5G Local Area Base Station Applications

Montazerolghaem

Vreede

Babaie

2023

2023 IEEE International Solid- State Circuits Conference (ISSCC)

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Recently, the so-called sub-6GHz band of the 5G new radio (NR) has been extended to 7.125GHz to address the relentless customer demand for higher data-rate communication. This demands a new design approach for the local area base-station (LA-BS) receivers (RXs) to cover a wide operating frequency range of 0.41 to 7.125GHz. Moreover, for NR bands above 3GHz, the maximum RF bandwidth (BW) is as high as 400MHz, in which a -35dBm modulated in-band (IB) blocker can be present. These impose stringent BW and IB linearity requirements for the baseband amplifiers in the LA-BS receivers. In addition to IB interferences, a -15dBm continuous-wave (CW) outof-band (OOB) close-in blocker can also be present at 60MHz offset frequency from the passband edges, thus demanding a highly selective RX. Finally, the blocker 1dB compression point (B 1dB ) becomes a key parameter for local area co-location applications in which the power of the far-out OOB blocker can be as large as -4dBm.

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“…Compared with prior art with a similar operating frequency range and BW [3][4][5] in Fig. 19.1.6, this work demonstrates higher IB linearity and sharper filtering roll-off.…”

mentioning

confidence: 78%

19.1 A 300MHz-BW, 27-to-38dBm In-Band OIP3 sub-7GHz Receiver for 5G Local Area Base Station Applications

Montazerolghaem

Vreede

Babaie

2023

2023 IEEE International Solid- State Circuits Conference (ISSCC)

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“…As mentioned previously, one of the major advantages of using current-mode approach is minimization of the output swing which in turn increases the upper limit of the DR. Nevertheless, current-mode front-ends ISSCC 2017 BB BB [9] [10]…”

Section: A State-of-the-art Saw-less Rf Receivers Reviewmentioning

confidence: 99%

“…1. Modern state-of-the-art RF receiver comparison with their respective specs (simplified schemes have been used) [9]- [12].…”

Section: A State-of-the-art Saw-less Rf Receivers Reviewmentioning

confidence: 99%

“…1 provides state-of-the-art RF receivers as well as an overview of their performance and power dissipation break-down (power consumption is reported for a common operative carrier at 2GHz). While the majority of the receivers are current-mode [9]- [12], a voltage-mode receiver is proposed in [11]. Such approach needs to use multiple mixer stages with filters and a feedback circuit for rejecting the blockers in order to meet comparable specs as current-mode receivers.…”

Section: A State-of-the-art Saw-less Rf Receivers Reviewmentioning

confidence: 99%

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A Reconfigurable Power-Efficient Quantized Analog RF Front-End With Smart Calibration

Kim

Liscidini

2022

IEEE Open J. Solid-State Circuits Soc.

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A power scalable RF front-end using Quantized Analog signal processing is presented. The front-end is based on a voltagemode power scalable approach which allows the power dissipation to be scaled upon the operative scenario and to performing an agile calibration for mismatch impairments. Power and input dynamic range can be scaled upon the desired 1dBCP (from -15.3dBm to 0.5dBm) while keeping the same sensitivity with 2.5dB NF. Signal path power can vary between 3.3mW to 6.4mW while clock generation and distribution power can vary between 1.6mW/GHz to 18.5mW/GHz, with a PN as low as -171.2dBc/Hz. After calibration, IM2 and IM3 improved up to 33dB while 1dBCP improved by 1dB, which resulted in achieving an IIP3 of 26.1dBm and IIP2 of 71dBm at 0dBm 1dBCP.

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“…systems: the out-of-band rejection strength, which is highly desired, for example, for strong blocker rejection in 5G applications where a −15-dBm continuous-wave (CW) blocker can be located 85-MHz away from the desired channel. That brings strict linearity requirements on receivers, leading to a high demand for higher-order filtering [24]- [26].…”

Section: Introductionmentioning

confidence: 99%

A Charge-Sharing IIR Filter With Linear Interpolation and High Stopband Rejection

Bozorg

Staszewski

2022

IEEE J. Solid-State Circuits

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This article introduces a new discrete-time (DT) charge-sharing (CS) low-pass filter (LPF) that achieves highorder filtering and improves its stopband rejection while maintaining a reasonable duty cycle of the main clock at 20%. It proposes two key innovations: 1) a linear interpolation of the sampling capacitor and 2) a charge re-circulation of the history capacitors for deep stopband rejection. Fabricated in 28-nm CMOS, the proposed IIR LPF demonstrates a 1-9.9-MHz bandwidth (BW) programmability and achieves a record-high 120-dB stopband rejection at 100 MHz while consuming merely 0.92 mW. The in/out-of-band IIP3 is +17.7 dBm/+26.6 dBm, and the input-referred noise is 3.5 nV/ √ Hz.

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6.5 A 3dB-NF 160MHz-RF-BW Blocker-Tolerant Receiver with Third-Order Filtering for 5G NR Applications

Cited by 21 publications

References 7 publications

19.1 A 300MHz-BW, 27-to-38dBm In-Band OIP3 sub-7GHz Receiver for 5G Local Area Base Station Applications

19.1 A 300MHz-BW, 27-to-38dBm In-Band OIP3 sub-7GHz Receiver for 5G Local Area Base Station Applications

A Reconfigurable Power-Efficient Quantized Analog RF Front-End With Smart Calibration

A Charge-Sharing IIR Filter With Linear Interpolation and High Stopband Rejection

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