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This paper describes a concept of non-adaptive Digital Feed-forward Linearization. A feed-forward amplifier is a system designed to reduce the spectrum re-grows appearing due to the amplifier’s nonlinearity. There are several general techniques to reduce nonlinearity effects. They are divided into two major groups. One of them (called “predistortion”)...

Phase noise is the most important figure of merit of microwave oscillators. 1,2 Although a number of publications have addressed this phenomenon, it still remains one of the most challenging aspects in oscillator design. This article briefly summarizes the research and development effort in the area of low-noise signal...

Many demanding applications in the RF and microwave industry require fixed frequency ultra low phase noise frequency sources that provide a high level of performance and reliability. These low noise frequency sources are often comprised of individual quartz-based ovenized crystal oscillators (OCXO) coupled with modular system building blocks such...

Circuit weight and density are critical factors in some microwave applications, notably in satellites and airborne systems, including unmanned aerial vehicles (UAV). To meet the needs for high electrical performance with mechanical reliability, Rogers Corp. has developed a new addition to its well-known line of RT/duroid® circuit-board materials: RT/duroid...

Two new UHF TV amplifiers, one designed specifically for digital service, the other designed for analog service, both with the highest power density currently available, are now offered from Power Module Technology (PMT). The advanced technology incorporated into these amplifiers is also available for microwave applications such as radar,...

Application Notes These free application notes provide insight into solving tough measurement problems in a unique way; in both the manufacturing and design environments. Offering the best combination of speed and scalability, and created and supported by renowned worldwide measurement experts, Agilent’s X products help engineers bring innovative, higher-performing...

WiFi/WiMAX Power Dividers BroadWave Technologies has expanded its WiFi/WiMAX power divider offering to include four-, six- and eight-way configurations. Model series 151-215-XXX are 50 Ohm, DC to 6 GHz, 1 W units with SMA female connectors. Insertion loss is 1 dB nominal for the four-way configuration across the DC...

Introduction to Communication Electronic Warfare Systems; Second Edition Richard Poisel Focusing mainly on the engineering aspects of communications electronic warfare (EW) systems, this thoroughly updated and revised edition of a popular Artech House book offers a current and complete introduction to the subject. The second edition adds a wealth...

Making a Connection Most studies find that 60 to 70 percent of jobs are found via networking and not through the normal job posting and application process. In addition, there are a number of jobs that are never posted on web sites or advertised as they are filled directly...

Amplifiers, Oscillators and Government Electronics Download the Puzzler Download the Puzzler (PDF) Across 2 The frequency interval from 1 to 2 GHz (hyphenated) 4 802.16e (2 words) 8 The matching of the modulation, coding and other signal and protocol parameters to the conditions on the radio link (2 words)...