Incremental Improvements Define The 2012 Mobile World Congress |
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Louis E. Frenzel, Editor in Chief
The usual players all showed up at this year’s Mobile World Congress in Barcelona with lots of improved devices, but no real game-changing breakthroughs... |
Detecting interfering signals and mitigating them
Interfering signals close to a carrier can be sources of interference that are difficult to detect. Field technicians must be able to identify and mitigate such interfering signals that can be less than 1 kHz apart and have a 60 dB difference in amplitude. The article discusses the type of performance necessary in a test instrument in order to identify interfering signals and track them down to their sources....
High-performance data converters support multicarrier wireless infrastructure
To accelerate the development of high-performance infrastructures for 3G and next-generation 4G systems, Analog Devices Inc. has readied high-speed data...
Making radios smarter for communications
With widespread proliferation of wireless communications and intensive use of electromagnetic spectrum, the need for smart radios is far greater today...
Research on transistor operation for millimeter wave applications
Under the Australian Research Council's (ARC) Linkage-Projects Scheme, which seeks to encourage and develop long-term strategic research alliances between...
Mobile radio data transmission sets a new record
Siemens researchers have set a world record for mobile radio data transmission: It achieved a capacity of 1 Gbps in real time. That's about 20 times faster...
Semiconductors
Bipolar CMOS DMOS process PolarFab has added 2.5-m-thick top metal to its PBC4 BCD (bipolar-CMOS-DMOS) process. PolarFab has also expanded the PBC4 standard...
Products
Active Components MMIC mixer Hittite has introduced two MMIC mixers. The HMC144LC4 is a double-balanced MMIC mixer in a leadless SMT package that can...
Exploring advances in microwave and millimeter wave devices
As this report explores up-to-date improvements in RF and microwave power transistors for power amplifiers, it sheds new light on gallium nitride (GaN)-based power transistors. In addition, the report focuses on the latest advances in passive components, and unveils trends in millimeter wave monolithic ICs (MIMICs)....
ZigBee development platform supports multiple RF transceivers
To enable engineers to speed up development time to address the needs of the emerging wirelessly networked control and monitoring applications using the...
SDR platform enables reconfigurable direction finding system
A software-defined radio (SDR) transceiver platform is used to implement a reconfigurable direction finding (DF) system. This article will describe the intended data flow and data rate requirements of a typical DF system, map the DF software components to the SDR platform, and demonstrate the availability of resources for more complex implementations....
Wireless trade association organizes relief effort for tsunami victims
Responding to the devastating earthquake and corresponding tsunamis in South Asia, the Wireless Communications Association International announced organizational efforts within the wireless broadband industry leading to a meeting on Jan. 13, 2005 ...
Single instrument calibrates signal generators and attenuators
German test and measurement equipment supplier Rohde & Schwarz claims it has developed the industry's first single-instrument solution for calibrating all key parameters of signal generators and fixed and variable attenuators...
Korean metropolitan city creates photonics 2010 initiative
Texas Prototypes Inc. and the Republic of Korea’s Gwangju Metropolitan City, Photonics 2010 Initiative have entered into a mutual business and investment cooperation relationship. ...
Staccato Communications gets new CEO, chairman
Ultra-wideband wireless communications start-up Staccato Communications has announced that Rick Kornfeld has joined its executive management team as president, CEO and board member, effective immediately...
12 GHz to 34 GHz image reject mixer is optimized for use as downconverter
Offering wide bandwidth and low conversion gain, a new gallium-arsenide, monolithic microwave, integrated-circuit image reject mixer covers the 12 GHz to 34 GHz frequency band. ...
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