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An image-reject down-converter for 802.11a and HIPERLAN2 wireless LANs

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Abstract

An image-reject down-converter for IEEE 802.11a and ETSI HIPERLAN2 wireless local area networks was implemented in a low-cost 46-GHz-f T silicon bipolar process. The circuit integrates a variable-gain low noise amplifier and a double-balanced mixer along with passive image rejection filters. It exhibits a 4-dB noise figure and a power gain of 23 dB. By reducing the low noise amplifier gain by 9 dB (thanks to a 1-bit gain control), the down-converter achieves an input 1-dB compression point of –14 dBm, while drawing only 23 mA from a 3-V supply voltage. The adopted filtering approach provides an image rejection ratio higher than 60 dB.

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Authors and Affiliations

  1. Facoltà di Ingegneria, DIEES, Università di Catania, V. le A. Doria 6, 95125, Catania, Italy

    Egidio Ragonese, Alessandro Italia & Giuseppe Palmisano

Authors
  1. Egidio Ragonese
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  2. Alessandro Italia
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  3. Giuseppe Palmisano
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Correspondence to Egidio Ragonese.

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Ragonese, E., Italia, A. & Palmisano, G. An image-reject down-converter for 802.11a and HIPERLAN2 wireless LANs. Telecommun Syst 32, 105–115 (2006). https://doi.org/10.1007/s11235-006-9132-8

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  • DOI: https://doi.org/10.1007/s11235-006-9132-8

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