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The figure of merit (G/T) for a satellite-terrestrial handset is a critical parameter for the link budget calculations, where G is antenna gain, which varies with elevation and azimuth angles, and T is the system noise temperature, which is the sum of the handset receiver and its antenna noise...

The high power amplifier is an important building block in wireless communication systems, but is inherently nonlinear. The nonlinearity results in intermodulation of the input signals, causing intermodulation distortion products at the output of the HPA and hence adjacent channel interference. 1 Thus, linearization methods are usually employed in...

With the development of modern wireless communications, the ultra-wideband (UWB) systems have attracted much attention recently because of their advantages, including high speed data, small size, low cost and low complexity. The antenna of the ultra-wideband systems plays an important role in the receiving and transmitting of ultra-wideband radiation....

Cost pressure, increasing SATCOM dependence and a "do more with less" mantra coming from the halls of the Pentagon, government agencies and commercial satellite owner/operators are leading to innovative thinking from vendors and users alike. Eric DeMarco, President and CEO of Kratos Defense & Security Solutions, has said, "In...

Fullwave electromagnetic (EM) model extraction has become an essential part of high frequency IC design flows and has become invaluable for extracting highly accurate models for inductors, baluns, MIM capacitors, transmissions, coupled lines, interconnects and even on-chip grounding busses. However, EM model extraction based on full 3D volume meshing...

Raytheon Co. submitted its proposal for the U.S. Army and Navy's Joint Air-to-Ground Missile competition and responded as a prime contractor. Raytheon is teamed with The Boeing Co. for the JAGM program. Raytheon and Boeing have proven capabilities that were showcased in the JAGM technology demonstration phase. The team...

In addition to the Raytheon-Boeing news, Lockheed Martin's Joint Air-to-Ground (JAGM) tri-mode seeker successfully acquired and tracked multiple moving maritime vessels during recent high speed, captive flight tests. The tests occurred in the Gulf of Mexico, off the shore of Eglin Air Force Base, FL, against multiple maritime targets,...

Northrop Grumman Corp. announced the successful demonstration of its STARLite radar on a U.S. Army Persistent Threat Detection System (PTDS), an aerostat surveillance platform uniquely positioned to aid in the defense of ground troops. During the demonstration at Yuma Proving Ground in Yuma, AZ, the STARLite system, which carries...

The U.S. Navy has awarded Raytheon Co. a $51.6 M contract to provide logistics support for the communication terminals of the Navy's Extremely High Frequency Satellite Program (NESP). The performance-based logistics contract calls for Raytheon Technical Services Co. LLC (RTSC) to fulfill all requisitions; warehouse and track government-furnished material;...

The International Telecommunications Union (ITU) has signed an agreement with key Asian standards developers that will mean new technologies come to market quicker and at lower cost. ARIB (Japan), CCSA (China), TTA (Korea) and TTC (Japan) have signed a Memorandum of Understanding with the ITU recognizing it as the...