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A new product line of ultra linear bandpass filters has been introduced that utilize patent pending cross coupling to reduce time delay and phase distortion up to 90 percent. The filters typically utilize a 12-section filter with two inductive and two capacitive non-adjacent couplings to equalize and flatten the...

Raytheon Co. has been awarded a $20 M contract from the Naval Sea System Command to develop the Combat Control System CCS Mk2 Weapons Control System. The contract has a potential value of $205 M (without material) over the four option years in addition to the base year. Raytheon...

On December 13, 2002, we sent a questionnaire to 75 companies that provide products and services in this field, with a response deadline of January 11th. We used e-mail rather than the USPS so that we would have feedback that all the questionnaires were received. On January 3, 2003,...

In today's competitive environment designers and engineers are looking for any features that can give them the edge. When it comes to RF connectors, areas where that advantage can be gained are in the speed of installation, flexibility of connection and efficient utilization of space. The QuickLock family of...

Lockheed Martin has received a contract for $341 M from the US Army Aviation and Missile Command (AMCOM) for the production of the Patriot Advanced Capability (PAC-3) Missile. Under the contract, Lockheed Martin Missile and Fire Control will produce 88 PAC-3 missiles plus other associated hardware. Production of all...

The Accu-Test™ products are a family of precision cable assemblies that are designed for use in the DC to 40 GHz frequency range, intended to facilitate accurate measurements and exhibit low loss characteristics at a competitive price for precision test and measurement applications. The family is currently comprised of...

When developing and producing complex RF connector housings, costs can be high and the process complex due to the sheer number of required machined metal components and the diversity of the necessary assembly. However, these difficulties can be overcome by employing molded injected metal (MIM) technology for connector manufacturing....

With all the talk about a wireless society, there is still a need for high performance coaxial cable assemblies. One of the areas still getting lots of development attention is cable assemblies for airborne electronic warfare. Most of these applications are at power levels too high for fiber optic...

Accurate, nonlinear, active device models are critical to achieving design success for circuits such as power amplifiers, oscillators and mixers, using computer-aided engineering (CAE) software such as Agilent Technologies' Advanced Design System (ADS™), Applied Wave Research's Microwave Office™, Eagleware's Genesys™ or Ansoft's Serenade™. Prior work has made it clear...

The rapidly increasing use of differential RF and microwave circuits has created many new measurement challenges. In S-parameter measurements, for example, transmission phase accuracy could often be ignored with little impact on specification-critical measurements. This is no longer true in the measurement of differential circuits, since seemingly small phase...