Low-Power CMOS Super-Regenerative Receiver With a Digitally Self-Quenching Loop

Kım, Kihyun; Yun, Sumin; Lee, Sungho; Nam, Sangwook

doi:10.1109/lmwc.2012.2211581

Cited by 13 publications

(13 citation statements)

References 6 publications

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“…From the power consumption point of view, significant saving can be accomplished by choosing the sampling start time T 1 as soon as the amplitude is sufficient for the first flip-flop and quickly extinguishing the oscillator once the N samples have been obtained, as in [5]. This would be achieved by a suitable quench waveform.…”

Section: E Complexity and Power Consumptionmentioning

confidence: 99%

“…The main reason for this is their reduced complexity, which is easily translated into low cost and low power consumption. Since its introduction in 1922 [1], this receiver has been successively refined with bitsynchronous designs [2], [3], applications to direct-sequence spread-spectrum [4], and several integrated implementations, such as [3], [5]- [9], have been recently reported.…”

Section: Introductionmentioning

confidence: 99%

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A Superregenerative QPSK Receiver

Pala-Schonwalder

Bonet-Dalmau

Moncunill-Geniz

et al. 2014

IEEE Trans. Circuits Syst. I

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Abstract-In this paper we present a description and experimental verification of a superregenerative receiver (SR) for QPSK signals. Exploiting the fact that a conventional SR generates pulses which preserve the input phase information, we take N 1-bit samples of each generated pulse. A suitable choice of the sampling frequency gives as a result a bit vector containing a sub-sampled version of each PSK pulse. Extremely simple digital processing of the vectors from two consecutive pulses allows symbol decision, together with information on signal quality and frequency displacements. Although presented for the QPSK case, the principle may be applied to the M-PSK case with obvious changes. Experimental results on a 20 kbit/s proof-of concept receiver in the 27 MHz band, achieving a sensitivity of −103 dBm, with an FPGA-based implementation of the digital part, validate the proposed approach.

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Section: E Complexity and Power Consumptionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Superregenerative QPSK Receiver

Pala-Schonwalder

Bonet-Dalmau

Moncunill-Geniz

et al. 2014

IEEE Trans. Circuits Syst. I

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“…On the receiver side the main impact of using an MPSK modulation is that the number of samples N used to subsample the SRO pulse must be increased when increasing m in order to fulfill (3). Figures 1 to 3 show constellations for m = {2, 4, 8} with the constant value of equation (3) equal to 5.…”

Section: Mpsk Transceivermentioning

confidence: 99%

“…[2], [3]) in applications where low-power and low-cost are the main driving forces. Recently [4], we presented a full QPSK SR transceiver, implemented on an FPGA.…”

Section: Introductionmentioning

confidence: 99%

Design and performance comparison of a superregenerative MPSK transceiver

Bonet-Dalmau¹,

Lopez-Riera²,

Pala-Schonwalder³

et al. 2015

2015 IEEE International Conference on Electronics, Circuits, and Systems (ICECS)

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“…A quench signal is still required for the proper operation of the receiver and its waveform will affect the actual performance of the receiver [4], [13]- [15]. Techniques to generate the quench signal internally within the receiver have been proposed in [13], [16], [17] and [10]. However, such techniques usually present a tradeoff between receiver performance and system complexity.…”

mentioning

confidence: 99%

A 3.54 nJ/bit-RX, 0.671 nJ/bit-TX Burst Mode Super-Regenerative UWB Transceiver<newline/> in 0.18-<formula formulatype="inline"><tex Notation="TeX">$\mu{\rm m}$</tex></formula> CMOS

Zheng

Zhu

Ang

et al. 2014

IEEE Trans. Circuits Syst. I

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Non-coherent ultra-wideband (UWB) transceiver employing energy detector suffers from degradation in output SNR due to the squarer. A burst mode super-regenerative UWB transceiver which can recover the received signal to rail-to-rail with relatively fewer post-amplification stages is proposed. Unlike other super-regenerative receiver architectures that use oscillator, the proposed architecture employs a positive feedback loop to achieve the super-regeneration of received signal and thus eliminates the need for external resonator or quench signal. The transceiver is suitable for low data rate sensor networks application covering spectrum of 3-5 GHz. Manufactured in CMOS 0.18-technology, the transceiver occupies an area of 2.2 mm 2 mm. By exploiting the duty cycle and the transceiver on-time through the burst mode operation for a given data rate of 1 Mbps, it can achieve transmitter energy efficiency of 0.671 nJ/bit and receiver energy efficiency of 3.54 nJ/bit.

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Low-Power CMOS Super-Regenerative Receiver With a Digitally Self-Quenching Loop

Cited by 13 publications

References 6 publications

A Superregenerative QPSK Receiver

A Superregenerative QPSK Receiver

Design and performance comparison of a superregenerative MPSK transceiver

A 3.54 nJ/bit-RX, 0.671 nJ/bit-TX Burst Mode Super-Regenerative UWB Transceiver<newline/> in 0.18-<formula formulatype="inline"><tex Notation="TeX">$\mu{\rm m}$</tex></formula> CMOS

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