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HT Mostar d.d. , one of Bosnia and Herzegovina's leading telecommunications carriers, has selected NEC Corp. to deploy approximately 70 units of its PASOLINK ultra compact microwave communications systems for its operations. As a result, Bosnia and Herzegovina has become the 139th country to adopt the system. Recent economic...

Carlisle Interconnect Technologies signed two long-term supply agreements with Airbus on January 13 th in Toulouse, France. Under the first agreement, Carlisle Interconnect Technologies will supply (DR) style airframe wire and cable to Airbus. This culminates a multi‐year qualification effort by Carlisle Interconnect Technologies to gain approval for all...

High Speed SDLAs AKON’s series of high speed SDLAs, log components offer SDLA performance with ERDLVA accuracy. Absolute accuracies of ±3.0 dB over frequency, temperature and power can be offered over an extended range of 0.5 to 18 GHz, while resulting in 10 ns of propagation delay, 10 ns...

This article describes the architecture of a power amplifier module for polar-modulated schemes. Polar-modulated power amplifiers use polar coordinates' representation of a signal-vector (vs. the traditional Cartesian I-Q representation used in the W-CDMA modulation scheme, for example). In this scheme, the recombination of coordinates is done at the output...

Component Reliability for Electronic Systems Titu-Marius I. Bajenescu and Marius I. Bâzu The main reason for the premature breakdown of today’s electronic products is the failure of the components used to build these products. To help ensure longer-lasting, more technically sound products and systems, a solid understanding of effective...

Ansoft Designer was introduced to the RF/microwave industry when “The New World of Communications Design Software” appeared as a cover feature in Microwave Journal back in March 2001 (see Figure 1 ). Ansoft, now a division of ANSYS Inc., had developed a new design environment from the ground up,...

In building a strategy for effective integrated-circuit design, it is important to understand the characteristics of different RF and microwave planar dividers/combiners. Optimization of the design process for dividers and combiners can reduce unnecessary costs and design iterations, thus allowing designers time to improve the quality of the product....

Did you know that February was among the last two months (along with January) to be added to the Roman calendar? According to Wikipedia, the Romans originally considered winter to be a“month-less” period. NFL fans experience a similar feeling on the morning after the Super Bowl, which, coincidentally, is...

There is little doubt that tomorrow will bring additional engineering design opportunities in the ever changing, ever expanding global RF and microwave applications arena. In the time it takes to read this paragraph, a new opportunity has been identified in Asia involving high-speed data, and one or two systems...

After more than ten years of design and construction by scientists and engineers across the globe, the Atacama Large Millimetre/submillimetre Array (ALMA) has passed a key milestone, known as ‘phase closure’, crucial for the high quality images that will be the trademark of this new tool for astronomy. Engineers...