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Design of VGA for MB-OFDM UWB  

Lee Seung-Sik (Wireless Home Network Research Team, ETRI)
Park Bong-Hyuk (Wireless Home Network Research Team, ETRI)
Kim Jae-Young (Wireless Home Network Research Team, ETRI)
Choi Sang-Sung (Wireless Home Network Research Team, ETRI)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.16, no.2, 2005 , pp. 144-148 More about this Journal
Abstract
In this paper, we have proposed VGA fur MB-OFDM UWB application using $CMOS\;0.18\;{\mu}m$ technique. The proposed VGA can vary power gain from 45 dB to -6 dB and 3 dB band width is more than 264 MHz. It has 3-stage cascade structure and DC offset cancellation. It consumes less, than 4 mA for 1.8 V bias voltage.
Keywords
UWB; CMOS; VGA; MB-OFDM; DC Offset Canceller;
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