4-A Chips Charge Smart-Phone Li-Ion Batteries
MD&D News Staff
Trumpeted as the first monolithic, 4-A Li-ion battery charger ICs, Summit Microelectronics’ configurable SMB349 and SMB359 operate from a 3.6-V to 16-V input range...
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Reflective optical sensor includes IR emitter and PIN photodiode in a single package
A new reflective optical sensor capable of detecting objects at operating distances of up to 40 mm has been introduced by Vishay Intertechnology, Inc...
High-performance mixer improves system linearity for infrastructure applications
M/A-COM has broadened its portfolio of surface-mount, high-IP3, high-isolation HMIC high-barrier mixers with the addition of a new member...
FCC to commence auction for wireless broadband services
The Federal Communications Commission (FCC) has formally notified the National Telecommunications and Information Administration (NTIA) of the U.S. Department...
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...
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...
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)....
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...
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...
Comparing active Gilbert mixers integrated in standard SiGe process (Part I)
Several design options exist for active Gilbert mixers that are integrated in the standard 0.8 m SiGe process...
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...
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...
Designing circuits using an EM/circuit co-simulation technique
Using EDA tools to design and develop RF/microwave circuits helps reduce design iteration cycles and design time, which can translate into substantial...
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....
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...
Vector modulator IC simplifies distortion cancellation
Hittite Microwave Corp. has introduced a high-dynamic-range vector modulator RFIC for wireless infrastructure applications from 1800 to 2200 MHz....
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