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WiFi

Nanotechnology circuits for wireless devices: First wafer-scale graphene integrated circuit smaller than a pinhead

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TechAndComputer (June 11, 2011) — IBM Research scientists have announced that they have achieved a milestone in creating a building block for the future of wireless devices. In a paper published in the journal Science, IBM researchers announced the first integrated circuit fabricated from wafer-size graphene, and demonstrated a broadband frequency mixer operating at frequencies up to 10 gigahertz (10 billion cycles/second).

Designed for wireless...

TechAndComputer (June 11, 2011) — IBM Research scientists have announced that they have achieved a milestone in creating a building block for the future of wireless devices. In a paper published in the journal Science, IBM researchers announced the first integrated circuit fabricated from...

What's mine is virtually yours: Collaboration between mobile phone users can speed up communications

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TechAndComputer (Mar. 23, 2011) — Applications on modern wireless devices make demands on data rate and connectivity far beyond anything experienced in the past. One way to meet these stringent requirements is to give the device multiple antennas or multiple-input multiple-output (MIMO) technology. The problem of physically accommodating these additional antennas in the latest consumer products is investigated in new research from the University...

TechAndComputer (Mar. 23, 2011) —...

Student innovation transmits data and power wirelessly through submarine hulls

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TechAndComputer (Mar. 8, 2011) — Steel walls are no match for Tristan Lawry. The doctoral student at Rensselaer Polytechnic Institute has developed and demonstrated an innovative new system that uses ultrasound to simultaneously transmit large quantities of data and power wirelessly through thick metal walls, like the hulls of ships and submarines.

Lawry, a student in the Department of Electrical, Computer, and Systems Engineering at Rensselaer,...

TechAndComputer (Mar. 8, 2011) — Steel...

Smartphones: Overcoming loss of connectivity

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TechAndComputer (Mar. 1, 2011) — The growth in the demand of smartphones has highlighted the complexities of wireless communications through problems of reduced sensitivity when the user holds some devices. New research has been investigating this problem, along with developing new solutions to overcome the loss of connectivity.

The study by academics in the field of antennas and propagation in the University of Bristol's Centre for...

TechAndComputer (Mar. 1, 2011) — The growth in the...

Innovative SAW-less reconfigurable transceiver developed

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TechAndComputer (Feb. 24, 2011) — At the 2011 International Solid-State Circuit Conference (ISSCC2011), imec and Renesas Electronics Corporation (TSE: 6723) present a highly-linear reconfigurable transceiver, eliminating the need of surface acoustic wave (SAW) filters. The unique approach is a major breakthrough towards fully reconfigurable radios by relaxing the requirements of the antenna filters, which suffered today from limited flexibility...

TechAndComputer (Feb. 24, 2011) — At the...