News tagged with cutoff frequency
IBM Scientists Demonstrate World's Fastest Graphene Transistor
(PhysOrg.com) -- In a just-published paper in the magazine Science, IBM researchers demonstrated a radio-frequency graphene transistor with the highest cut-off frequency achieved so far for any graphene device ...
Feb 05, 2010 |
4.9 / 5 (39) |
26
|
Search results for cutoff frequency
Team reports scalable fabrication of self-aligned graphene transistors, circuits
(PhysOrg.com) -- Graphene, a one-atom-thick layer of graphitic carbon, has the potential to make consumer electronic devices faster and smaller. But its unique properties, and the shrinking scale of electronics, ...
Nanotechnology / Nanomaterials
Jun 17, 2011 |
5 / 5 (10) |
6
|
Time likely to end within 5 billion years, physicists calculate
(PhysOrg.com) -- As far as astrophysicists can tell, the universe is expanding at an accelerating rate, and will likely continue to do so indefinitely. But now some physicists are saying that this theory, ...
Oct 01, 2010 |
3 / 5 (59) |
96
|
Engineers achieve world record with high-speed graphene transistors
(PhysOrg.com) -- Graphene, a one-atom-thick layer of graphitic carbon, has great potential to make electronic devices such as radios, computers and phones faster and smaller. But its unique properties have also led to difficulties ...
Sep 03, 2010 |
4.9 / 5 (16) |
1
|
Fast Transistors Could Save Energy
(PhysOrg.com) -- Transistors, the cornerstone of electronics, are lossy and therefore consume energy. Swiss esearchers from the ETH Zurich and EPF Lausanne have developed transistors targeting high switching ...
Apr 20, 2010 |
4.4 / 5 (15) |
4
|
First hyperlens for sound waves created
Ultrasound and underwater sonar devices could "see" a big improvement thanks to development of the world's first acoustic hyperlens. Created by researchers with the U.S. Department of Energy's Lawrence Berkeley ...
Oct 25, 2009 |
4.6 / 5 (19) |
4
Mindfulness Training Improves Sleep Quality; Lessens Need for Sleep Medicines
(PhysOrg.com) -- Stressed-out people sleep better and take sleep medication less often when they learn to let go of intrusive thoughts, according to researchers at Duke Integrative Medicine.
Medicine & Health / Psychology & Psychiatry
Jun 25, 2009 |
5 / 5 (4) |
0
Reception problems linger after DTV transition
(AP) -- The shutdown of U.S. analog TV service on Friday appears to have gone relatively smoothly, but as expected, a lot of viewers are having problems getting the stations they want.
Jun 17, 2009 |
not rated yet |
0
Engineers tune a nanoscale grating structure to trap and release a variety of light waves
People debating politics are well-advised to shed more light than heat. Engineers working in optical technologies have the same aspiration.
Feb 17, 2009 |
4.6 / 5 (5) |
0
Fujitsu Develops World's First GaN HEMT Able to Cut Power in Standby Mode and Achieve High Output
Fujitsu today announced the development of a new type of gallium nitride (GaN)-based high electron mobility transistor (HEMT) that features a new structure ideal for use in amplifiers for microwave and millimeter-wave ...
Oct 10, 2008 |
5 / 5 (5) |
0
Chasing rainbows
Engineers working in optical communications bear more than a passing resemblance to dreamers chasing rainbows. They may not wish literally to capture all the colors of the spectrum, but they do seek to control the rate at ...
Jun 27, 2008 |
4.2 / 5 (13) |
0
List of search results for cutoff frequency
