Feature Articles

  1. Constellation Diagrams: The Fault In Our Stars

    Constellation diagrams are 2D graphical representations of digitally modulated signals.  They are used for the display and analysis of digitally modulated waveforms and provide valuable insight into the performance of a digital communication system.

  2. Understanding And Testing Multi-Channel RF Systems With Signal Generators

    As the number of antennas grow in wireless systems, test complexity also increases. As a result, it is necessary to generate multiple RF channels for receiver testing and to analyze multiple RF channels for transmitter testing. Generating and analyzing multiple synchronized RF signals are potentially challenging. This white paper discusses test signal requirements for the evaluation of multi-channel RF systems and how to configure instruments for these test requirements.

  3. Reimagining The Role Of Connectivity In Communications, Sensing, And Protection Of Ground Forces

    The U.S. and several NATO countries have been working on the seemingly impossible task of reducing size and weight of soldiers’ equipment while simultaneously increasing functionality and power. For engineers dealing with connectivity issues, this has brought about smaller and smaller connectors, cables and devices. Interconnected and portable devices have until now mainly been used by soldiers on covert operations. A wired tactical vest extends the concept of wearables beyond special forces by making the garments more modular, more accessible, and more affordable.

  4. NewSpace Terminal Testing Challenges And Considerations

    NewSpace networks and terminal vendors need to thoroughly test wireless communication systems and components to ensure uninterrupted operation and high quality of service. This white paper focuses primarily on the challenges ground terminals (user terminals and gateway terminals) present to design verification testing and manufacturing. Conducted and radiated test solutions are also discussed.

  5. Designing Microwave PCBs For Successful Manufacture — Getting It Right The First Time

    With improvements in processor speed and model accuracy, it is more and more common for microwave circuit simulations to bear close approximation to their eventual real-world performance. However, not all pitfalls present in the successful manufacture of a complex microwave circuit are captured in simulations. This white paper looks at some common mistakes and discusses how to adjust a design to avoid them.

  6. EMC Pre-Compliance Fundamentals

    By using a performance EMI receiver, independent compliance test laboratories and companies with in-house self-certification labs can make radiated and conducted emissions tests, certifying a product meets local regulatory compliance standards. Learn how to make EMC pre-compliance measurements with this white paper.

  7. 3 Tactics For Configuring Phase-Coherent RF Signal Generation

    As the number of higher throughput applications grows sharply, there is a need for wider bandwidth and network coverage in wireless systems. However, given limited spectrum allocation, strategies must be found to improve spectral efficiency and signal-to-noise ratio (SNR). Multi-antenna techniques, such as Multi-input Multioutput (MIMO) and beamforming, can help achieve diversity, multiplexing, and antenna gain in order to improve spectral efficiency and signal-to-noise ratio (SNR). This white paper will help the reader understand phase coherence and why it matters, and offer tactics for generating phase-coherent signals.

  8. Glass Sidewall Packages Provide Performance For RF Applications

    Glass sidewall packages achieve highest levels of hermeticity for hardware in space vacuums and extreme temperatures. Compared to ceramic, they deliver better RF performance thanks to their lower dielectric constant.

  9. Highs And Lows Of Electronic Warfare

    For the US Army, the next chapter of electronic warfare (EW) is all about precision and low visibility. In a statement last month, Col. Mark Dotson said the Army’s new EW strategy is centered on, “using low power to affect the signal and to affect it in such a way that it may not even be detectable that you’re interfering with what they’re doing.”

  10. 5G New Radio eBook

    Is 5G simply another generation of mobile communications technologies? Or something revolutionary? In this eBook, Rohde & Schwarz give insights into 5G New Radio (NR), exploring all of its relevant details, key implementation aspects, and required test and measurement equipment for the development of 5G NR products.