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[资料] Ultra-Wideband Technology for Short- or Medium-Range Wireless Communications

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发表于 2006-8-29 11:14:00 | 显示全部楼层 |阅读模式
【文件名】:06829@52RD_Ultra-Wideband Technology for Short- or Medium-Range Wireless Communications.pdf
【格 式】:pdf
【大 小】:383K
【简 介】:Ultra-Wideband (UWB) technology is loosely defined as
any wireless transmission scheme that occupies a
bandwidth of more than 25% of a center frequency, or
more than 1.5GHz. The Federal Communications
Commission (FCC) is currently working on setting
emissions limits that would allow UWB communication
systems to be deployed on an unlicensed basis following
the Part 15.209 rules for radiated emissions of intentional
radiators, the same rules governing the radiated emissions
from home computers, for example. This rule change
would allow UWB-enabled devices to overlay existing
narrowband systems, which is currently not allowed, and
result in a much more efficient use of the available
spectrum. Devices could, in essence, fill in the unused
portions of the frequency spectrum in any particular
location.
【目 录】:


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发表于 2007-4-7 12:57:00 | 显示全部楼层
买的人给个评论啊 谢谢
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