Advance

Ultra Wideband - Circuits

Recent Advances in wireless communication technologies have had a transforma- tive impact on society and have directly contributed to several economic and social aspects of daily life. Increasingly, the untethered exchange of information between devices is becoming a prime requirement for further progress, which is placing an ever greater demand on wireless bandwidth. The ultra wideband (UWB) system marks a major milestone in this progress. Since 2002, when the FCC allowed the unlicensed use of low-power, UWB radio signals in the 3.1–10.6GHz frequency band, there has been significant synergistic Advance in this technology at the cir- cuits, architectural and communication systems levels. This technology allows for devices to communicate wirelessly, while coexisting with other users by ensuring that its power density is sufficiently low so that it is perceived as noise to other users.

标签： Circuits Wideband Ultra

上传时间： 2020-06-01

上传用户：shancjb
Tcl_and_The_Tk_Toolkit

This manuscript is a partial draft of a book to be published in early 1994 by AddisonWesley (ISBN 0-201-63337-X). Addison-Wesley has given me permission to make drafts of the book available to the Tcl community to help meet the need for introductory documentation on Tcl and Tk until the book becomes available. Please observe the restrictions set forth in the copyright notice above: you’re welcome to make a copy for yourself or a friend but any sort of large-scale reproduction or reproduction for profit requires Advance permission from Addison-Wesley

标签： Toolkit

上传时间： 2020-07-05

上传用户：
VPX标准草案(vita46d0-r0d11)

VME has been the de-facto bus standard for Commercial off the Shelf(COTS ) Circuit Card Assemblies since the 1980's. VME boards have proven to be remarkably capable of evolving to support newer technologies with innovations such as VME Subsystem Bus, PCI Mezzanine Cards(PMC's) and VME320.However, Advances in technologies, appearing particularly in interconnects, have demonstratedthe need for an Advance in system development. This Advance needs to accommodate high speed interconnect, particularly serial interconnects, and higher power delivery in concert with better heat removal.

标签： vpx标准

上传时间： 2022-07-27

上传用户：bluedrops