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- Title
An image-reject down-converter for 802.11a and HIPERLAN2 wireless LANs.
- Authors
Egidio Ragonese; Alessandro Italia; Giuseppe Palmisano
- Abstract
<span class="AbstractHeading">Abstract </span>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.
- Subjects
LOCAL area networks; WIRELESS LANs; COMPUTER networks; WIRELESS communications
- Publication
Telecommunication Systems, 2006, Vol 32, Issue 2/3, p105
- ISSN
1018-4864
- Publication type
Article
- DOI
10.1007/s11235-006-9132-8