A Fully Integrated Auto-Calibrated Super-Regenerative Receiver in 0.13-$\mu{\hbox {m}}$ CMOS

Chen, Jiayi; Flynn, Michael P.; Hayes, John P.

doi:10.1109/jssc.2007.903092

Cited by 124 publications

(113 citation statements)

References 11 publications

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“…The main advantage of this proposed method is that the calibration input signal is not required. Therefore, it is different from the calibration method discussed in [7] where the input signal is required, and thus more suitable for automatic calibration. For simplicity of illustration, we use the 5-bit DAC and the 3-bit ANA values to define the quench current waveform.…”

Section: Automatic Quench Waveform Calibrationmentioning

confidence: 98%

“…The conclusion is that a saw-tooth waveform provides better selectivity. In [7], the selectivity is further enhanced by operating the oscillator first in the Q-enhancement mode, and after that in the amplification mode. The quench waveform is generated in a combined analog (ANA) and digital (DAC) fashion so that the super-regenerative receiver achieves both low power consumption and reasonable sensitivity and selectivity results.…”

Section: B Quench Waveformmentioning

confidence: 99%

“…The optimal analog slope search is performed once IOAc has been determined. This two-step search process is achieved using the successive approximation register (SAR) algorithm [7].…”

Section: Automatic Quench Waveform Calibrationmentioning

confidence: 99%

See 2 more Smart Citations

Autonomous operation of super-regenerative receiver in BAN

Kalyanasundaram

Huang

Imamura

et al. 2012

2012 6th International Symposium on Medical Information and Communication Technology (ISMICT)

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Abstract-Super-regenerative receiver is one of the potential candidates to achieve ultra low power wireless waveform calibrated super-regenerative receiver, the system can provide stable probability or mis-detection and probability of false alarm results in different carrier frequencies. This is very desirable for the determination of a good threshold in spectrum sensing. Together with our previously reported chip designed for the super regenerative receiver, we have developed an autonomously operating super-regenerative receiver based wireless system, which is ideal for many BAN applications.

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Section: Automatic Quench Waveform Calibrationmentioning

confidence: 98%

Section: B Quench Waveformmentioning

confidence: 99%

See 1 more Smart Citation

Autonomous operation of super-regenerative receiver in BAN

Kalyanasundaram

Huang

Imamura

et al. 2012

2012 6th International Symposium on Medical Information and Communication Technology (ISMICT)

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show abstract

“…These receivers are typically used as narrowband AM receivers and, occasionally, as FM receivers. Superregenerative receivers have recently garnered renewed attention for their integration into CMOS, which, when combined with modern digital techniques in mixed-signal designs, improves performance implementations (Favre et al, 1998;Chen et al, 2007). Thus, SR receivers are a promising alternative to other architectures in emerging applications such as wireless sensor networks and medical devices (Ayers et al, 2010, Bohorquez et al, 2009Otis et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

“…Thus, SR receivers are a promising alternative to other architectures in emerging applications such as wireless sensor networks and medical devices (Ayers et al, 2010, Bohorquez et al, 2009Otis et al, 2005). Recent proposals for their use include: reception of spread spectrum, phase and frequency modulations (Ayers et al 2010, Moncunill et al, 2005bPalà et al, 2009); use of stable frequency references such as bulk-acoustic-wave (BAW) resonators (Otis et al, 2005); implementation of digital self-calibrating techniques (Chen et al, 2007); and, very recently, reception of ultra wideband impulse radio (UWB IR) modulations (Anis et al, 2008;Moncunill et al, 2007b;Moncunill et al, 2009;Pelissier et al, 2009;Thoppay, 2010).…”

Section: Introductionmentioning

confidence: 99%

Ultra Wideband Impulse Radio Superregenerative Reception

Moncunill-Geniz¹,

Pala-Schonwalder²,

Bonet-Dalmau³

et al. 2011

Ultra Wideband Communications: Novel Trends - System, Architecture and Implementation

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Selectivity and sensitivity enhancement methods for high‐data‐rate super‐regenerative receiver

Mousavi

Saeedi

2017

Circuit Theory & Apps

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This paper describes selectivity and sensitivity performance evaluations and improvement methods for an on-off keying super-regenerative (SR) receiver. A slope-controlled quasi-exponential quench waveform, generated by a low-complexity PVT-tolerant quench generator circuit, is proposed to increase data rate and reduce the receiver 3-dB bandwidth, thereby preventing oscillation caused by out-of-band injected signals and improving the receiver selectivity. The SR receiver sensitivity is also enhanced by a noise-canceling front-end topology with single-ended to differential (S2D) signal converter. To exemplify these techniques, we designed an SR receiver with the proposed front-end and quench waveform generator in a 0.18-μm CMOS technology. Theoretical analyses and circuit simulations show 30% and 65% reduction in 3-dB bandwidth of the SR receiver at 25 Mbps data rate by employing the proposed quench signal compared with piecewise-linear and trapezoidal quench waveforms, respectively. Performance of the proposed front-end is evaluated by a fast bit-error-rate estimation procedure, based on circuit noise simulations and statistical analyses, without the need for time-consuming transient-noise simulations. Accuracy of the procedure has been verified by comparing its results with transient-noise simulations. According to the estimated bit-error-rate curves, the noise-canceling topology with S2D converter enhances the SR receiver sensitivity by 9 dB.The noise-canceling RF front-end with S2D conversion is shown in Figure 7. A common gate (CG)common source (CS) LNA topology is employed to provide input impedance matching and S2D conversion. Trans-conductance of the CG transistor, M 3 , is set to 20 mS for 50-Ω input impedance matching. The biasing circuit in Figure 2 is also employed in the LNA to reduce the effect of PVT variations on trans-conductance of M 3 and M 4 . Phase difference between the two signals injected by the CS transistor, M 4 , and the CG transistor, M 3 , to the SR oscillator core is about 180 degrees. The Figure 6. (a) The conductance curve, G(t); (b) the sensitivity pulse, s(t), and the normalized oscillation envelope, p(t); and (c) the super-regenerative band-pass function, |H bp (ω)|, of the proposed quench technique for three different values of G À and gain. Data rate is 25 Mbps in all cases.Figure 8. The super-regenerative oscillator output employing (a) the proposed S2D converter and (b) a single-ended LNA. (c) Histogram of the oscillator output low level, derived from Monte Carlo simulations.Figure 14. Transient-noise simulation of the super-regenerative receiver at 25 Mbps data rate: (a) the input pulse, (b) oscillator differential output, (c) envelope detector output, and (d) output signals of the comparator and the flip-flop.

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A Fully Integrated Auto-Calibrated Super-Regenerative Receiver in 0.13-$\mu{\hbox {m}}$ CMOS

Cited by 124 publications

References 11 publications

Autonomous operation of super-regenerative receiver in BAN

Autonomous operation of super-regenerative receiver in BAN

Ultra Wideband Impulse Radio Superregenerative Reception

Selectivity and sensitivity enhancement methods for high‐data‐rate super‐regenerative receiver

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