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Tunable Low Power UWB Transmitter for WBAN Application

V. Vinod Kumar

Electronics and Communication Engineering Department, College of Engineering Guindy, Anna University, Chennai 25, India

Corresponding author.

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M. Meenakshi

Electronics and Communication Engineering Department, College of Engineering Guindy, Anna University, Chennai 25, India

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https://doi.org/10.1142/S0218126615500401Cited by:1 (Source: Crossref)

Abstract

This paper presents the design and simulation results for a Federal Communication Committee (FCC) complaint current starved delay line based Ultra Wide Band (UWB) Gaussian pulse transmitter, which is designed for operating in the 3.1–10.6 GHz range. The wavelet is a mono cycle Gaussian impulse wave, which is practically well suited for low cost, low power, low data rate wireless data transfer such as in wireless body area network (WBAN) applications. The transmitter operating frequency and bandwidth (BW) is controlled using a dc voltage provided at the input stage of a voltage controlled delay line (VCDL) and this aspect can be exploited for increasing the communication coverage area without compromising on the power consumption. A Gaussian wave shaping is performed for FCC compliance and the simulation has been carried out with 130 nm technology. The simulation of our design suggests an average dynamic power consumption of 1.11 mw for an energy efficiency of 14.2 pJ/pulse. The proposed IR-UWB transmitter design though a bit inferior in terms of the power efficiency, can claim superior performance with respect to tuning the BW, which is very relevant in a cognitive wireless networking scenario with other interfering signals.

This paper was recommended by Regional Editor Piero Malcovati.

Keywords:

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