Reconfigurable Multi-Band OFDM UWB Receivers: Circuits and System Considerations

  • Luca Baldini
  • Danilo Manstretta
  • Tomaso Erseghe
  • Nicola Laurenti
  • Antonio Liscidini
  • R. Castello
Part of the Series on Integrated Circuits and Systems book series (ICIR)

ULTRA wideband (UWB) is intended to provide a standard for high-speed short range wireless communication [1, 2]. The ECMA 368 Standard [2] specifies the physical and medium access control layers for UWB networks using Multi-band Orthogonal Frequency Division Modulation (MB-OFDM). The spectrum from 3.1 to 10.6GHz is divided into 14 bands of 528MHz. Supported data rates range from 53.3 to 480 Mbps with a data-rate adaptation mechanism allowing each receiver to opt for the transmitter's data rate for the maximum throughput. The receiver RF front-end and the frequency synthesizer pose the highest design challenges.We will concentrate only on the former due to space limitations. Covering a broad bandwidth is quite challenging, especially for a CMOS implementation, where tuning out capacitive parasitics is the key to achieve low-power operation. An important aspect in UWB communication is the interference between different UWB devices and from other systems. Nearby wireless devices can produce in-band interference due to intermodulation and harmonic generation in the receiver front-end. In this chapter, we will evaluate the effects of interferers on the desired UWB signal, resulting from cross-modulation, intermodulation and harmonic distortion. Some of the existing receiver solutions will be reviewed and a receiver architecture with enhanced linearity performances will be described.


Medium Access Control Packet Error Rate Device Under Test System Consideration Image Rejection 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  • Luca Baldini
    • 1
  • Danilo Manstretta
    • 1
  • Tomaso Erseghe
    • 2
  • Nicola Laurenti
    • 2
  • Antonio Liscidini
    • 1
  • R. Castello
    • 1
  1. 1.Università degli Studi di PaviaPavia
  2. 2.Università degli Studi di PadovaPadovaItaly

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