A 64 µW, 23 dB gain, 8 dB NF, 2.4 GHz RF front-end for ultra-low power Internet-of-Things transceivers

Dissanayake, Anjana; Seok, Hyun-Gi; Jung, Oh-Yong; Han, Shuangfeng; Lee, Sang‐Gug

doi:10.1109/rfic.2017.7969048

Cited by 14 publications

(2 citation statements)

References 3 publications

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“…Introduction: The current-mode passive mixer has been widely used in multimode and direct-conversion receiver (DCR) attributed to its low flick noise, wide variable gain range and high linearity [1][2][3][4]. Compared with the double-balanced mixer, the single-balanced mixer has lower power consumption and 5.5 dB higher conversion gain (CG) [3], however it is more susceptible to the local oscillator (LO) feedthrough.…”

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confidence: 99%

“…Compared with the double-balanced mixer, the single-balanced mixer has lower power consumption and 5.5 dB higher conversion gain (CG) [3], however it is more susceptible to the local oscillator (LO) feedthrough. The complementary switch adopted in [1][2][3] can be a good choice to reduce the LO feedthrough while the dc offset and second-order intermodulation (IM2) distortion will be a concern due to mismatch between PMOS and NMOS. In addition, the traditional designs use an independent voltage bias to provide dc voltage to the gate of the switches.…”

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Feedback followed bias generation scheme for complementary passive mixer

2018

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A complementary passive mixer with feedback followed gate bias generation scheme is proposed. The gate voltage of the switches follows the common-mode voltage (V CM) of the signal paths, so that the proposed mixer achieves constant switching gate-to-source bias voltage and coherent performances while V CM changes over a certain range. Furthermore, a dc offset cancelation method based on the bias generation circuit is proposed. The dc component of the intermediate frequency is feedbacked to the bias generation input to form a cancelation path. A behavioural model is deduced to prove the effect of the offset cancelation and second intercept point (IIP2) improvement. The proposed mixer is implemented in a 0.13 μm CMOS process, and measurement results show that robust performance with the V CM range of 0.5-0.7 V and 16 dB IIP2 improvement are obtained.

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Feedback followed bias generation scheme for complementary passive mixer

2018

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580µW 2.2-2.4GHz Receiver with +3.3dBm Out-of-Band IIP3 for IoT Applications

Krishnamurthy

Maksimovic

Niknejad

2018

ESSCIRC 2018 - IEEE 44th European Solid State Circuits Conference (ESSCIRC)

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Stacked Transconductance Boosting for Ultra-Low Power 2.4GHz RF Front-End Design

Dissanayake

Bowers

Calhoun

2021

2021 IEEE International Symposium on Circuits and Systems (ISCAS)

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This paper presents a transconductance boosting method with a stacked current-reused inverter-based gain cell for ultra-low power RF applications. For the same bias current, the proposed method can boost the conventional inverter-based amplifier transconductance by twice, an overall quadruple boost compared to a single MOSFET in sub-threshold region. A 65nm CMOS based post-layout level implementation of the LNA including an on-chip matching network shows a 1.3 dB better noise figure as single inverter implementation for the same power of 45 μW. A cross-coupled stacked-gm VCO implementation achieves 44% higher voltage swing as that of the cross coupled single inverter at 74μA current, owing to the doubled gm value.

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A 64 µW, 23 dB gain, 8 dB NF, 2.4 GHz RF front-end for ultra-low power Internet-of-Things transceivers

Cited by 14 publications

References 3 publications

Feedback followed bias generation scheme for complementary passive mixer

Feedback followed bias generation scheme for complementary passive mixer

580µW 2.2-2.4GHz Receiver with +3.3dBm Out-of-Band IIP3 for IoT Applications

Stacked Transconductance Boosting for Ultra-Low Power 2.4GHz RF Front-End Design

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