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Ultra Low Power Small Size RF Transceiver Design for Wireless Sensor Networks

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3 Author(s)
Minhas, A.A. ; Bahria Univ. Wireless Res. Center, Bahria Univ. Islamabad, Islamabad, Pakistan ; Faheem, M.Y. ; Azeem, M.B.

Some transceivers operate in the industrial, scientific and medical (ISM) band. Usually Wireless sensor nodes are mostly battery operated and in many applications they are placed unattended. It requires designing both hardware and software that consume very low power during the operations. Current size of the wireless sensor node is in the order of millimeter. Scientists and engineers are trying to reduce its size near to the size of dust particle. This offers a challenge to design wireless sensor nodes that consume low power. Transceiver has a very important role in these nodes. In this paper we have proposed an Ultra low power small size RF transceiver. The proposed chip has contained five blocks which are power amplifier (PA), low noise amplifier (LNA), crystal oscillator (XO), Phase Locked Loop (PLL), and intermediate frequency(IF). It incorporates less number of low-dropout regulators (LDO). It has also proposed to decrease the number of beneficiary components by giving the same job to other components in a distributed way. Also the reduction of enable pins on the chip reduced the size of chip.

Published in:

Collaboration Technologies and Systems (CTS), 2011 International Conference on

Date of Conference:

23-27 May 2011