Trusted Resource for the Working RF Engineer
Search MWRF
Home
Product Directory
Topics
Note Pad
electronica 2008
EuMW 2008
Back Issues
RF Blogs
Military Electronics
Subscribe
News
Online News
Design Features
Web Seminars
PartFinder
Whitepapers
Microwave Legends
Newsletter
WebConnect
RF Design
RSS
RSS
Sponsored Links
 |
December 2008 [Industry News] Finding New Homes For RF/Microwave Technology Emerging applications for microwave and RF technology promise to keep researchers and manufacturers busy for several years. Many of the long-time markets for high-frequency electronics, such as commercial communications, military radar, and electronic-warfare (EW) systems, appear strong for the future. Yet the use of RF and microwave signals should extend well beyond those traditional markets in the years to come. Investments in commercial communications... — Jack Browne , et al. December 2008 [Components] Vectron’s Vision Of Frequency Control Southern New Hampshire is home to beautiful summers and snow-kissed winters. It is also home to the corporate headquarters for one of the world’s leading crystal oscillator suppliers, Vectron International (www.vectron.com). Part of the diversified Dover Electronic Technologies group of engineering and electronics companies, Vectron International also boasts expertise and manufacturing ... — Jack Browne December 2008 [Crosstalk] Crosstalk With Joel Levine, President of RFMW FIVE YEARS AGO, the US was still trying to recover from the stock-market dip after September 11, 2001. Consumer confidence was down. In fact, the situation was somewhat similar to where the economy is today—except that the current economy is in even worse shape because of the housing-bubble burst. Tough economic times do not have to translate into a lack of opportunity, however. In 2003, a company called RFMW was just being spawned. The distributor, which... — Nancy Friedrich November 2008 [Computer-Aided Engineering] Software Simulators Speed Design Cycle Time-to-market pressures force designers to search for an edge. For many, that edge comes in the form of computer-aidedengineering (CAE) simulation tools. Such software is available to simulate devices as well as system components. It can perform both linear and nonlinear circuit and system simulations. In addition, a host of software companies offer platforms for time-domain and electromagnetic (EM) simulation. To keep up with design advances and... — Nancy Friedrich November 2008 [Communications] Mobile WiMAX Is Vetted For Video Like every new wireless standard, mobile WiMAX has experienced some controversy. People in the wirelesscommunications industry have alternately doubted its viability and exaggerated its merits. With last month’s launch of the XOHM mobile fourth-generation (4G) service in Baltimore, MD, however, mobile WiMAX has shown that it will likely have a spot alongside 4G telecommunication standards like Long Term Evolution or LTE (... — Nancy Friedrich October 2008 [Communications] Communications Technologies Strive For Improved Connections Communications systems operators face at least one continuing reality: their customers want ever-improving services even as networks become overloaded with subscribers. Additional subscribers on a wired or wireless communications network benefit the business side of the operation. But as more subscribers are added to a network, its capacity is pushed to its limits, requiring the assistance of advanced technologies, in the form of hardware and software,... — Jack Browne October 2008 [People] Interview: Christos Tsironis When did you start Focus Microwaves and what came before that? After studying EE in Karlsruhe, I received a Dr. Ing. degree from the University of Aachen, both in Germany. I spent three years working on noise theory and measurements of GaAs FETs. During that time, in the mid-1970s, I developed the first manual impedance tuner, which uses principally the same slugs as today’s tuners. After that, I worked for five years at Philips Research Laboratory in... — Jack Browne October 2008 [People] Microwave Legends In 2006, this magazine proudly celebrated its 45th birthday. To commemorate that event, the editorial staff put together a list of 45 “Microwave Legends.” This was a hall of fame that combined ground-breaking products like the HP 8510 with legendary figures like Edwin Armstrong and more modern characters like Barrie Gilbert. We vowed that we would continue this tradition by inducting five more entrants into the Microwave Legends every year. This year’s... — Nancy Friedrich October 2008 [Components] Tunable Oscillators Aim At Reduced Phase Noise Tunable oscillators are instrumental in the operation of many systems, from commercial communications to military radars. And, while many characteristics define the performance of a tunable RF/microwave oscillator, one of the more difficult parameters to optimize is phase noise, which is critical to the performance of so many systems. For that reason, the design team at Synergy Microwave (... — Jack Browne September 2008 [Defense Electronics] Technology Critical To Modern Warfare Laser weapons are among the advanced technologies being incorporated into next-generation weapons systems. In addition, dynamically guided missile systems, unmanned ground vehicles (UGVs), and unmanned aerial vehicles (UAVs) will take part in a not-so-distant future battlefield where opposing forces will ultimately try to save soldiers’ lives by squaring off against each other’s technologies. For example, Northrop Grumman (... — Jack Browne September 2008 [Components] RF Transistors Add Power, Subtract Heat High-power RF transistor developers face the constant challenge of dissipating massive amounts of heat from small devices in order to achieve higher output-power levels. Ideally, the energy put into an RF transistor would be converted directly to RF output power, but such 100-percent drain efficiency can only be achieved in an ideal world. In reality, more than one-half of the power supplied to an RF transistor must typically be dissipated as heat, ... — Jack Browne August 2008 [Components] Crystal Oscillators Continue To Shrink Crystal oscillators are also known as clocks, for their importance in keeping system time and frequency. A few decades ago, very high levels of stability required large assemblies with built-in ovens to maintain a narrow range of temperatures for optimum performance. But today’s crystal oscillators, including temperature-compensated crystal oscillators (TCXOs) and oven-controlled crystal oscillators (OCXOs), provide improved performance compared to ... — Jack Browne August 2008 [Communications] Millimeter-Wave Bands Support Diverse Uses Millimeter-wave frequencies are difficult to generate and as difficult to test, but the bands above 30 GHz have long intrigued commercial and military spectrum planners because of their amount of available bandwidth. So named because of having wavelengths in the 1 to 10 mm range, frequencies from 30 to 300 GHz have long been used in military and government applications, but only recently been ... — Jack Browne August 7, 2008 [Communications] Freescale And Arada Systems Collaborate On 802.11n Access Point Devices Taiwanese provider of wireless test-system solutions, LitePoint Corporation, has developed three new systems for testing wireless standards. The new IQnxn Plus system provides a multi-stream signal capability — Paul Whytock August 7, 2008 [Test & Measurement] UWB Test Solution Claimed To Be Industry First Taiwanese provider of wireless test-system solutions, LitePoint Corporation, has developed three new systems for testing wireless standards. The new IQnxn Plus system provides a multi-stream signal — Paul Whytock August 7, 2008 [Industry News] ST-NXP Wireless Joint Venture Kicks Off With $350 Million Cash Reserve The STMicroelectronics and NXP Semiconductors wireless joint venture (JV), ST-NXP Wireless, is up and running with a cash balance of $350 million that was created as part of the JV — Paul Whytock July 2008 [Devices & ICs] Semiconductor Advances Propel High-Power Amps Improved linearity is one of the requirements for an effective wireless commuications transition from 2G series to 3G/4G systems, and high-performance RF transistors are vital to the amplifiers in these newer systems. As network operators transition from 2G services to 3G/4G systems, the role of highly efficient, highly linear RF transistors with higher operating voltages in base station amplifier designs become critical. Consequently, the technology that was... — Ashok Bindra July 2008 [Communications] Startup Proposes Wi-Fi For Personal Area Networks Materials suppliers are constantly refining their recipes in search of products that offer greater value and increased reliability for a variety of commercial, industrial, and military applications Jack Browne Technical Director Microwave materials represent building blocks for high-frequency circuits and systems. Whether they are used to hold circuit traces, absorb or suppress radiofrequency interference (RFI), or form resonant... — Jack Browne July 10, 2008 [Test & Measurement] Signal Generator Has Power-Analysis Option Rohde & Schwarz, Munich, Germany, has expanded the capabilities of the R&S SMF100A microwave signal generator with the addition of two new options. First, the SMF-K27 option allows users to configure pulse trains for radar-specific developments and tests — Paul Whytock July 10, 2008 [Test & Measurement] Upgrade Debuts For CMA 3000 Field Tester Instrument company Anritsu, Copenhagen, Denmark, has developed a new SDH STM-1/-4/-16 test option for the CMA 3000 field tester — Paul Whytock  prev. page
[1]
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
next page 
|
|
Resources
Electronic Design