A 2.4 GHz ZigBee Receiver Exploiting an RF-to-BB-Current-Reuse Blixer + Hybrid Filter Topology in 65 nm CMOS

Lin, Zhicheng; Mak, Pui-In; Martins, Rui P.

doi:10.1109/jssc.2014.2311793

Cited by 57 publications

(19 citation statements)

References 19 publications

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“…The other designs reported in the table have better noise figures but also report much higher power consumption. Although in this case a fair comparison is difficult to make, it can be verified that the power consumption required to generate the local oscillator in [5], [8], [17] is either higher or comparable to the power consumption of the entire receiver front-end proposed in this paper. Therefore, even if the performances of the other receiver chains were significantly compromised in favour of a lower consumption (by scaling the power consumption of LNA, mixers, and base-band section), it would be difficult to achieve an overall power consumption below the one reported here since the power necessary for LO generation cannot be arbitrary scaled.…”

Section: Sub-mw Receiver Design and Measurement Resultsmentioning

confidence: 88%

“…In this topology, a real Gm-C filter is transformed into a complex one, by introducing cross-connected transconductance between the I and Q paths (by the use of the additional transistors ). This creates a frequency shift that is proportional to resulting in an asymmetry in the frequency response appropriate for image rejection: (8) A clever implementation of the Gm-C filter is in the hybrid solution presented by Lin et al [8]. In this topology, the filter response is produced by a complex load that shares its bias current with the preceding gain stage.…”

Section: Current Re-use Base-band Filtermentioning

confidence: 99%

See 1 more Smart Citation

Sub-mW Current Re-Use Receiver Front-End for Wireless Sensor Network Applications

Selvakumar

Zargham

Liscidini

2015

IEEE J. Solid-State Circuits

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In this paper, a receiver front-end tailored to Bluetooth Low Energy applications is presented. In the proposed solution, the LNA, mixers, VCO, quadrature scheme and the first stage of the analog base-band share the same bias current under a 0.8 V voltage supply leading to a sub-mW power consumption. A channel selection filter, implemented through a current re-use gm-C topology, completes the design. The presented prototype, realized in 130 nm CMOS technology, occupies an active area of 0.25 mm while consuming only 0.6 mW. With a NF of 15.8 dB, an IIP3 of 17 dBm at the maximum gain and an image rejection above 30 dB the receiver front-end meets BLE noise figure, image rejection, phase noise and linearity requirements.

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Section: Sub-mw Receiver Design and Measurement Resultsmentioning

confidence: 88%

Section: Current Re-use Base-band Filtermentioning

confidence: 99%

Sub-mW Current Re-Use Receiver Front-End for Wireless Sensor Network Applications

Selvakumar

Zargham

Liscidini

2015

IEEE J. Solid-State Circuits

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“…The simulated and measured performance parameters of the front-end are summarized in Table I [9], [10]. The measured 1 dB compression point is 5.4 dB higher because the output dc level of the mixer stage was approximately 75 mV higher than its simulated level, which provides more headroom for larger voltage swing.…”

Section: Discussionmentioning

confidence: 99%

A 0.77 mW 2.4 GHz RF Front-End With $-$4.5 dBm In-Band IIP3 Through Inherent Filtering

Liu

Chang

Onabajo

2016

IEEE Microw. Wireless Compon. Lett.

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This letter describes low-power design techniques that are demonstrated with a 2.4 GHz RF front-end consuming 0.77 mW while having a −4.5 dBm in-band third-order intermodulation intercept point (IIP3), a noise figure (NF) of 6.3 dB, and a spuriousfree dynamic range (SFDR) up to 62.8 dB. Cross-coupling capacitors in the active mixer alleviate the gain loss due to parasitic capacitances. They also provide paths from the common sources of the switching stage to the low-noise amplifier load, forming inductor-capacitor filters that improve linearity. The proposed RF front-end was fabricated in a 130 nm CMOS process to exemplify the design techniques with specifications for ZigBee applications.Index Terms-Linearization, LNA, low-power radio frequency front-end design, mixer, subthreshold biasing, weak inversion.

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“…In the wideband solution, a single wideband receiver covers the spectrum of interest. The wideband solution is widely applied in the design of software-defined radios (SDR) [3][4][5][6][7][8] and reconfigurable receivers [9][10][11][12]. However, the wideband operation introduces wideband interference problems.…”

Section: Introductionmentioning

confidence: 99%

A Nonlinear Transfer Function Based Receiver for Wideband Interference Suppression

Ying¹,

Gao²,

Milošević³

et al. 2017

Journal of Sensors

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Wideband receivers for multistandards operation can simplify the system and lower the cost. In a wideband receiver, the tolerance of large interference signal within the operating band is important. Traditional frequency-domain filtering suffers from lacking in filtering capability for in-band interference signals. This paper describes a receiver system exploiting nonlinear transfer function. Based on the fundamental nonlinear theory, the receiver with nonlinear method can provide frequency-independent filtering for large blockers and linear amplification for weak desired signals simultaneously. The interference suppression performance depends on the amplitude discrimination between the envelope of the large and small signal. The operation of the nonlinear receiver is based on the amplitude of the interferer envelope. A feedforward path is designed to extract the envelope information of the interferer and a feedback path is added to keep track of the environment. With frequency-independent filtering, the nonlinear receiver system enhances both in-band and out-of-band linearity, thus enabling wideband multimode operation.

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A 2.4 GHz ZigBee Receiver Exploiting an RF-to-BB-Current-Reuse Blixer + Hybrid Filter Topology in 65 nm CMOS

Cited by 57 publications

References 19 publications

Sub-mW Current Re-Use Receiver Front-End for Wireless Sensor Network Applications

Sub-mW Current Re-Use Receiver Front-End for Wireless Sensor Network Applications

A 0.77 mW 2.4 GHz RF Front-End With $-$4.5 dBm In-Band IIP3 Through Inherent Filtering

A Nonlinear Transfer Function Based Receiver for Wideband Interference Suppression

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