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How RF Testing and Traceability Makes the Difference between Generic and “Hi-Rel” (MIL-Spec) Coaxial Cable Assemblies

by Pasternack The use of coaxial cable transmission lines for RF, microwave, millimeter-wave, high-speed digital, and other critical communications is a growing trend in military, aerospace, and high-risk industrial applications. Though the need for robust communication technology is substantial for these applications, the latest budgets and production cycles are often too small and too short […]

Leveraging the Precision of Ion Beam Milling Vs. Chemical Etching of Thin Film Circuits

by SemiGen Manufacturing thin film circuits using an anisotropic ion beam milling process has long been considered a more precise and repeatable approach over the more random and uncontrollable process of material subtraction via chemical etching. This paper describes experiments conducted by Ion Beam Milling, Inc. (now SemiGen, and heretofore referred to as such) that […]

A Quick Guide to Lightning Arrestors

by Fairview Microwave There are two basic ways electricity and electromagnetic energy can destroy a broadcast tower, microwave link, cellular base station, or any other wireless infrastructure: transient voltage spikes and lightning. Of the two, the former is the more frequent and the latter more damaging, and neither can be ignored. When lightning strikes a […]

Block Upconverter Design Considerations for Airborne Applications

by  Mehdi Ardavan, Norsat The recent breakthrough in satellite communication services has provided limitless communication options for airborne applications. With the right equipment and worldwide services, one can provide secure, consistent, two-way broadband communications to various types of airborne missions. This includes mobile Command & Control services (C2); tracking of VIPs and dignitaries; live Intelligence, […]

Flattening Negative Gain Slope with MMIC Fixed Equalizers

by Mini-Circuits I.  Introduction   Equalizers are devices used to compensate for negative gain slope in the frequency response of a wide variety of RF systems.  Unlike a standard attenuator with a flat frequency response, an equalizer is a unique kind of attenuator which exhibits lower insertion loss as frequency increases with some known slope.  […]

Methods to Increase Channel Capacity in RF Data Links

by Stephen Barthelmes and Patrick Sherlock, Triad RF Systems, Inc. & Ken Andrew, Non Line-of-Sight Wireless As more people and organizations demand higher data rates to stream high definition (HD) video for broadcasting, surveillance, or social media applications, the need for capacity continues to increase for wireless communication systems. In addition, once more advanced technology […]

RF Transceivers Enable Forced Spurious Decorrelation in Digital Beamforming Phased Arrays

by Peter Delos, Michael Jones, and Mark Robertson, Analog Devices, Inc. In large digital beamforming antennas, dynamic range improvements through the beamforming process of combining signals from distributed waveform generators and receivers is highly desirable. A 10logN dynamic range improvement can be obtained in both noise and spurious performance if the associated error terms are […]

An Overview of Flexible Waveguide Operation and Construction

by Steven Pong, Product Manager, Pasternack Waveguides offer an ideal medium for the high frequency and high power signal transmission seen in radar and aerospace defense applications. The high transmit powers needed in these applications effectively factor out the usability of coaxial cables or most other high frequency transmission lines. From antenna feeds to test […]

Millimeter-Wave Technology for Defense Applications

by Mike Lee, Director of Sales and Marketing, dB Control There will always be emerging threats in the defense sector that require the innovation that millimeter-wave technology offers. Here’s a helpful Q&A primer on millimeter-wave products – including what specialized contract manufacturing and environmental testing can bring to the table.  Which defense applications need millimeter-wave […]

VFTT – Keysight Technologies, Inc.

Joel Conover, Senior Director, Industry Solutions and Digital Marketing, Keysight Technologies, Inc. MPD: The 2019 defense budget is chock full of EW, radar, and other programs with lots of RF and microwave content, so, if your company serves the defense market, what are your thoughts about how this will affect your business in the coming […]