iXBT Labs - Computer Hardware in Detail






Latest News

 « Previous Day News Archive  

NEC Develops Next-Gen UWB Wireless Transceiver Technology

NEC today announced that it has succeeded in developing the world's first reliable signal creation and processing technology in the wireless 3- to 9-gigahertz wide bandwidth range, enabling high-speed wireless transmission of data from computers and digital home appliances.

Features of the ultra wideband (UWB) transceiver technology:

  • Development of ultra-wide range compensation circuit technology, which is capable of stable signal creation and processing across a wide spectrum of frequencies (3-9 GHz)
  • Development of ultra low-power supply voltage amplifier technology
  • Development of new technology to compensate for characteristic variation in transistors that use low power
  • Use of a 90-nanometer (nm) advanced CMOS process for high-frequency operation (note 1*)

To realize the wide spectrum of frequencies, NEC developed an oscillator that can generate signals in the 3-9 GHz range. In addition, an ultra-high-speed gain amplifier and band-pass filter have been added into the oscillator to change the gain in accordance with fast band hopping, achieving a flat characteristic output in the 3-9 GHz band. Low-supply voltage amp requires especially high signal-to-noise (S/N) ratio. This new development introduces a new amp that achieves high performance for both large amplitude and noise rejection simultaneously. To date, variation-compensation circuits have had a voltage-adjustment circuit to compensate for distortion in each individual circuit. This new development instead places one voltage-adjustment circuit on a chip and uses a bus to distribute compensation voltages, drastically reducing the amount of power needed for variation correction.

Source: NEC

 « Previous Day News Archive  

Latest headlines

ASUS Launches R9 200, R7 200 Series, Matrix R9 280X Graphics Cards

Apacer Launches SATA SLC-lite SSD solutions

ADATA Introduces a Stylish External HDD HC630

Samsung Introduces New Wireless Multiroom Speakers

WD Gives Consumers a Cloud of Their Own

Write a comment below. No registration needed!

blog comments powered by Disqus

  Most Popular Reviews More    RSS  

AMD Phenom II X4 955, Phenom II X4 960T, Phenom II X6 1075T, and Intel Pentium G2120, Core i3-3220, Core i5-3330 Processors

Comparing old, cheap solutions from AMD with new, budget offerings from Intel.
February 1, 2013 · Processor Roundups

Inno3D GeForce GTX 670 iChill, Inno3D GeForce GTX 660 Ti Graphics Cards

A couple of mid-range adapters with original cooling systems.
January 30, 2013 · Video cards: NVIDIA GPUs

Creative Sound Blaster X-Fi Surround 5.1

An external X-Fi solution in tests.
September 9, 2008 · Sound Cards

AMD FX-8350 Processor

The first worthwhile Piledriver CPU.
September 11, 2012 · Processors: AMD

Consumed Power, Energy Consumption: Ivy Bridge vs. Sandy Bridge

Trying out the new method.
September 18, 2012 · Processors: Intel
  Latest Reviews More    RSS  

i3DSpeed, September 2013

Retested all graphics cards with the new drivers.
Oct 18, 2013 · 3Digests

i3DSpeed, August 2013

Added new benchmarks: BioShock Infinite and Metro: Last Light.
Sep 06, 2013 · 3Digests

i3DSpeed, July 2013

Added the test results of NVIDIA GeForce GTX 760 and AMD Radeon HD 7730.
Aug 05, 2013 · 3Digests

Gainward GeForce GTX 650 Ti BOOST 2GB Golden Sample Graphics Card

An excellent hybrid of GeForce GTX 650 Ti and GeForce GTX 660.
Jun 24, 2013 · Video cards: NVIDIA GPUs

i3DSpeed, May 2013

Added the test results of NVIDIA GeForce GTX 770/780.
Jun 03, 2013 · 3Digests
  Latest News More    RSS  

Platform  ·  Video  ·  Multimedia  ·  Mobile  ·  Other  ||  About us & Privacy policy  ·  Twitter  ·  Facebook

Copyright © Byrds Research & Publishing, Ltd., 1997–2011. All rights reserved.