A 22 mW Bluetooth RF transceiver with direct RF modulation and on-chip IF filtering

Recent advances have resulted in the ability to integrate sensors, wireless communications and digital electronics into a single integrated circuit package. This capability is enabling networks comprised of very low cost sensors nodes that are able to communicate with each other. Energy efficient wireless communications is an essential requirement for Wireless Sensor Networks (WSN) in many environmental monitoring applications and there is a growing need to improve the lifetime of wireless sensor nodes. The power consumed by node transceiver electronics is non-negligible and has a major impact on battery life. This paper describes a system level methodology to analyze a complete RF transceiver architecture for short-range energy limited applications requiring high data rates. The overall system specifications are derived using system level simulations utilizing Matlab programming and Agilent's Advanced DesignSystem. The obtained specifications can be used for implementing an energy efficient transceiver at 2.4GHz for WSN applications.

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“…Table I shows the typical power consumption numbers for GSM [9], 802. 11b [lO], Bluetooth [11] and Zigbee transceivers. [21].…”

Section: Motivation and Earlier Workmentioning

confidence: 99%

System level analysis of energy efficient transceiver at 2.4 GHz for Wireless Sensor Networks

Vasanthi

Rao

Priyadarshan

2012

2012 International Conference on Computing, Electronics and Electrical Technologies (ICCEET)

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“…Table I shows typical power consumption numbers for GSM [9], 802.11b [10], and Bluetooth transceivers [11]. PA efficiency can vary quite a bit depending on PA type, output power, technology, and design.…”

Section: Transmitter Power Consumption Does Not Scale Linearly With Datamentioning

confidence: 99%

On the Energy Efficiency of Wireless Transceivers

Wang

Sodini

2006

2006 IEEE International Conference on Communications

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Abstract-Battery life-time is an important performance metric for many wireless networks and there is a growing need to improve the life-time of these networks. However, system analysis is complicated by the fact that the transceiver electronics energy cost is non-negligible and often has a major impact on the battery life. This paper develops a simple metric to evaluate the energy cost of both communication protocols and circuit electronics. This metric treats the electronics energy as an overhead cost on top of the EbINO requirement. This enables the joint optimization of system and circuit parameters for energy limited wireless transceivers with arbitrary communication protocols.

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“…Nevertheless, commercial transmitters with VCO modulation through fractional-synthesizers are beginning to be deployed, especially in low-performance, low-cost wireless systems such as Bluetooth wireless LANs [55]. Facilitating this trend are various solutions that have been devised in recent years to allow for wide-band VCO modulation in fractional-PLLs without incurring the severe phase noise penalty mentioned above.…”

Section: Vco Modulation In Wireless Handset Transmittersmentioning

confidence: 99%

“…However, as described in [57], this necessitates the use of a Type 1 PLL which significantly complicates the design of the phase detector. Yet another solution is to use a narrow loop bandwidth but modulate the VCO both through the digital modulator and through an auxiliary modulation port at the VCO input [55]. The idea is to apply the low-frequency modulation components at the modulator input and the high-frequency modulation components directly to the VCO.…”

Section: Vco Modulation In Wireless Handset Transmittersmentioning

confidence: 99%

Delta-sigma data conversion in wireless transceivers

Galton

2002

IEEE Trans. Microwave Theory Techn.

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High-performance analog-to-digital converters, digital-to-analog converters, and fractional-frequency synthesizers based on delta-sigma (16) modulation-collectively referred to as 16 data converters-have contributed significantly to the high level of integration seen in recent commercial wireless handset transceivers. This paper presents a tutorial on 16 data converters and their uses and implications with respect to wireless transceiver architectures.

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A 22 mW Bluetooth RF transceiver with direct RF modulation and on-chip IF filtering

Cited by 28 publications

References 1 publication

System level analysis of energy efficient transceiver at 2.4 GHz for Wireless Sensor Networks

System level analysis of energy efficient transceiver at 2.4 GHz for Wireless Sensor Networks

On the Energy Efficiency of Wireless Transceivers

Delta-sigma data conversion in wireless transceivers

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