A 2.4-GHz MEMS-based PLL-free multi-channel receiver with channel filtering at RF

Heragu, Aravind; Ruffieux, David; Enz, Christian

doi:10.1109/esscirc.2012.6341308

Cited by 4 publications

(2 citation statements)

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“…The condition on the FBAR tuning to select all channels is the same as that for the TX (given in (1)). The AMF cell also includes an FBAR based lattice filter for antialiasing, which is the main condition for sub-sampling based downconversion [3]. The channel that is selected is then passed on to the two-stage sub-sampling mixer whose second stage decimates the signal.…”

Section: Pll-free Sub-sampling Receivermentioning

confidence: 99%

“…Indeed, the maximum data rate achieved in the case of the TX presented in this paper is 16 Mbps [2] which is much higher than the State-of-the-Art (SOTA) [1]. The FBAR, due to its low phase noise, is also used in the RX for enabling a low power, channel selection lattice filter at RF [3]. A description of the PLL-free TX and the RX is provided in the following sections with Section II dealing with the former and III with the latter.…”

Section: Introductionmentioning

confidence: 99%

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Enabling highly energy efficient WSN through PLL-free, fast wakeup radios

Thirunarayanan

Ruffieux

Enz

2015

2015 IEEE International Symposium on Circuits and Systems (ISCAS)

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Energy wasted during the wake-up of radios significantly degrades the efficiency of duty-cycled Wireless Sensor Networks (WSN). The major contributor to this energy wastage is the PLL-based frequency synthesizer which has a long wakeup time. Furthermore, the rate of duty cycling in these radios is also constrained by the PLL which imposes an upper limit on the maximum data rate that can be achieved by the radio. In order to improve upon both these bottlenecks, this paper presents an overview of highly agile, PLL-free radios based on FBAR DCOs. These synthesizers have the advantage of a 5µs wakeup, thereby reducing the energy wastage. In addition, they also support high-data rates (upto 16 Mbps) thereby increasing the rate of duty cycling which also improves the energy efficiency. The extremely low phase noise of the FBAR is an added advantage that has been leveraged to provide a low power channel selection filter for a sub-sampling receiver architecture. Index Terms -WSN; FBAR; PLL-free Radios; fast wakeup.978-1-4799-8391-9/15/$31.00 ©2015 IEEE

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Section: Pll-free Sub-sampling Receivermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Enabling highly energy efficient WSN through PLL-free, fast wakeup radios

Thirunarayanan

Ruffieux

Enz

2015

2015 IEEE International Symposium on Circuits and Systems (ISCAS)

Self Cite

View full text Add to dashboard Cite

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The Design of Ultralow-Power MEMS-Based Radio for WSN and WBAN

Heragu

Ruffieux

Enz

2013

Frequency References, Power Management for SoC, and Smart Wireless Interfaces

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Introduction to Ultra Low Power Transceiver Design

Lee

Mercier

2015

Integrated Circuits and Systems

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Design of radios with ultra-low-power consumption can enable many new and exciting applications ranging from wearable healthcare to Internet of Things devices and beyond. Achieving low power operation is usually an exercise in trading-off important performance metrics with power. This chapter presents an overview of state-of-the-art narrowband architectures and techniques that achieve ultra-low-power operation, and concludes with a section that benchmarks recent state-of-the-art designs in order to illustrate power-performance trade-offs.

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A 2.4-GHz MEMS-based PLL-free multi-channel receiver with channel filtering at RF

Cited by 4 publications

References 4 publications

Enabling highly energy efficient WSN through PLL-free, fast wakeup radios

Enabling highly energy efficient WSN through PLL-free, fast wakeup radios

The Design of Ultralow-Power MEMS-Based Radio for WSN and WBAN

Introduction to Ultra Low Power Transceiver Design

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