Feature Articles

  1. Fully Polarimetric Analysis of Wireless Connectivity for Smart Home and IoT Applications
    3/12/2019

    This white paper presents a study of wireless connectivity of electronic devices in the Wi-Fi band. The study focuses on wireless connectivity between lamps and light switches in an indoor environment.

  2. Bringing TEMPEST Receivers Into The Digital Age
    3/11/2019

    In the field of TEMPEST, traditional analysis has focused on analog signal emanations from electronic devices. This paper provides an overview on the digital demodulation basics and delivers an understanding on how to analyze impairments on digitally modulated signals.

  3. Balancing Linearity And Efficiency In A Power Amplifier
    3/11/2019

    Achieving both high linearity and high efficiency together in a Radio Frequency (RF) Power Amplifier (PA) system is challenging. Typical designs for highly efficient PAs involve operating devices in their non-linear range, i.e., at or near compression.

  4. Filter Shape Factor And Selectivity
    3/8/2019

    This article discusses how a real-world filter’s deviation from ideal behavior needs to be quantified and that shape factor and selectivity are tools to use in this process. It touches on how both resonator Q and the filter order (number of resonators in a design) can influence a filters behavior in the transition band. 

  5. Unlocking Full Duplex DOCSIS 3.1 Architecture With DPD And 75-Ohm CATV Switches
    3/8/2019

    The CATV industry is looking to set new standards for the next generation of cable ecosystems, including the Full Duplex (FDX) DOCSIS 3.1, which promises to deliver 10 Gbps data rates upstream and downstream on existing hybrid fiber-coaxial (HFC) systems. 

  6. Resource Scaling For Antenna Placement Modeling On A SAAB JAS-39 Gripen Aircraft
    2/28/2019

    This white paper demonstrates how resource requirements scale for the computational electromagnetic modeling of a modern fighter aircraft when the frequency increases. It also demonstrates how different simulation methods may be applied and how they scale relative to each other.

  7. Understanding 5G Coexistence Testing Requirements
    2/26/2019

    New 5G NR designs must meet target performance and coexist with 4G, Wi-Fi, and other wireless communication systems sharing overlapping spectrum. This white paper discusses 5G spectrum coexistence issues and presents techniques for minimizing interference and operating in shared spectrum.

  8. Optimizing Performance And Cost For Millimeter-Wave Signal Analysis
    2/20/2019

    mmWave systems considered for next-gen commercial wireless require test instrumentation that keeps pace with the performance requirements of these systems. This app note discusses advances in mmWave signal analysis and instrumentation.

  9. Using IEC 60601-1 For Maximum Patient And Operator Protection
    2/20/2019

    The IEC 60601-1 states maximum requirements concerning the protection from electric shock for medical applications in which patients and operators can get into direct contact with electrical equipment and systems. This white paper shows how supplier know-how can contribute towards the development of IEC 60601-1-compliant electrical equipment and systems based on the example of the ODU plastic circular connector series ODU MEDI-SNAP®.

  10. IoT Antenna Questions Answered
    2/19/2019

    This download offers answers for commonly asked questions on antennas used in IoT applications, including what the proper grounding plane is for certain antennas, and why antenna length is important to reception.