找回密码
 注册
搜索
查看: 5642|回复: 1

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

[复制链接]
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】:


本帖子中包含更多资源

您需要 登录 才可以下载或查看,没有账号?注册

×
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
点评回复

使用道具 举报

高级模式
B Color Image Link Quote Code Smilies

本版积分规则

Archiver|手机版|小黑屋|52RD我爱研发网 ( 沪ICP备2022007804号-2 )

GMT+8, 2024-9-28 17:27 , Processed in 0.047684 second(s), 17 queries , Gzip On.

Powered by Discuz! X3.5

© 2001-2023 Discuz! Team.

快速回复 返回顶部 返回列表