A Mixer-First Receiver Frontend with Resistive-Feedback Baseband Achieving 200 MHz IF Bandwidth in 65 nm CMOS

Guo, Benqing; Wang, Haishi; Wang, Yao; Li, Ké; Li, Lei; Zhou, Wenjiao

doi:10.1109/rfic54546.2022.9863101

Cited by 13 publications

(2 citation statements)

References 8 publications

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“…In terms of OOB IP3 performance, the paper [18] using a noisy second-order Nauch filter combining BB NC obtains the best result of that, but with larger NF. Furthermore, high-order BB filtering in [9][10] and enhanced N-path RF filtering in [19] realized excellent results as well. Closely following that, the second-order BB filter plus the N-path RF filter in the paper guarantees moderate OOB linearity.…”

Section: Resultsmentioning

confidence: 84%

“…The low noise and high blocker resilience are highly desirable for sub-6 GHz receivers. For large IF bandwidths coverage that is vital for high data rate transmission, the mixer-first (MF) receivers in [9][10] have achieved 130 and 200 MHz levels based on BB current-mode filters. The used current-mode filters are based on a regulated cascode structure.…”

Section: Introductionmentioning

confidence: 99%

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A Baseband-Noise-Cancelling Mixer-First CMOS Receiver Frontend Attaining 220 MHz IF Bandwidth With Positive-Capacitive-Feedback TIA

et al. 2023

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In this paper, by using the baseband noise cancellation, a CMOS mixer-first analog receiver with power reduction is proposed. Based on a current-mirror transimpedance amplifier structure, positive capacitive feedback is applied to manipulate poles/zeros location, enabling a wide baseband bandwidth and out-of-band second-order filtering profile. The additional radio frequency N-path filtering and baseband 40dB/dec roll-off absorb out-of-band interferences. The presented receiver frontend is fabricated in a standard 65 nm CMOS process. Measured results demonstrate a minimal noise figure of 2.2 dB, and an average voltage gain of 32.2 dB across the 220 MHz intermediate frequency range. The in-band and out-of-band third-order input intercept point manifests -12.8 dBm and 15.5 dBm respectively. The presented receiver circuit draws ~32 mW at a typical 1 GHz local oscillator stimulus.INDEX TERMS mixer-first receiver, noise cancellation, wideband IF, capacitive feedback.

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Section: Resultsmentioning

confidence: 84%

Section: Introductionmentioning

confidence: 99%

A Baseband-Noise-Cancelling Mixer-First CMOS Receiver Frontend Attaining 220 MHz IF Bandwidth With Positive-Capacitive-Feedback TIA

et al. 2023

Self Cite

View full text Add to dashboard Cite

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A Direct Conversion Frontend With Bandwidth Extension and Linearity Enhancement for 5G Receivers

Rahmani,

Mojarad

2024

Circuit Theory & Apps

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In this paper, a new frontend for 5G receivers is proposed. In the presented work, a new bandwidth enhancement technique for low‐noise transconductance amplifiers and for wireless frontends has been proposed. The proposed frontend achieves low noise figure (NF) by using a noise cancelation scheme in the newly proposed LNTA. The linearity of the frontend is also improved by increasing the DC gain and the bandwidth of the opamp used in the transimpedance amplifier and by exploiting a linearity improvement method for the LNTA. The frontend has been implemented in a standard 0.18 μm CMOS process. The post‐layout simulation results prove the gain of 38 dB with less than 3 dB deviation in the pass‐band over a 6.5 GHz bandwidth. The results also show that NF is less than 8 dB, the worst‐case IIP3 is −2 dBm, the maximum S11 is equal to −9.5 dB while the frontend consumes 9.95 mW DC power from a single 1.8‐V supply, and the occupied area is 0.813 mm2.

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A reconfigurable passive LNA using an N-path switched-capacitor transformer with 2×/3× voltage Gain

Yang,

Liu,

Jin

et al. 2025

Microelectronics Journal

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A Mixer-First Receiver Frontend with Resistive-Feedback Baseband Achieving 200 MHz IF Bandwidth in 65 nm CMOS

Cited by 13 publications

References 8 publications

A Baseband-Noise-Cancelling Mixer-First CMOS Receiver Frontend Attaining 220 MHz IF Bandwidth With Positive-Capacitive-Feedback TIA

A Baseband-Noise-Cancelling Mixer-First CMOS Receiver Frontend Attaining 220 MHz IF Bandwidth With Positive-Capacitive-Feedback TIA

A Direct Conversion Frontend With Bandwidth Extension and Linearity Enhancement for 5G Receivers

A reconfigurable passive LNA using an N-path switched-capacitor transformer with 2×/3× voltage Gain

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