Featured Articles

  1. Ten Cues You Need A 5G MIMO Channel Modeler
    4/18/2018

    How does Wireless InSite differ from planning tools?  The most important differences emerge when users need to simulate 5G mmWave and MIMO systems.  This paper presents ten cues that your organization may need a channel modeling tool like Wireless InSite to supplement your 5G network planning efforts.

  2. Antenna Factor Concepts
    4/17/2018

    An antenna factor (AF) is the comparison between the field level presented to the antenna and the actual voltage produced by the antenna at its connector. The AF varies with frequency at the same presented field strength, but at a different frequency, the produced voltage at the connector is not constant. This white paper explains the process of creating AF data and how to use it.

  3. Shielding Effectiveness Test Guide
    4/17/2018

    Many products incorporate electronics and wireless communications and need RF interference testing. This requires shielding enclosures that need proper testing to ensure their correct operation.

  4. Comparison Of Time Domain Scans And Stepped Frequency Scans In EMI Test Receivers
    4/10/2018

    The paper compares the measurement speed and level measurement accuracy of a conventional stepped frequency scan versus an advanced FFT-based time domain scan. 

  5. ADAS Simulation Under Severe Vibrations
    4/4/2018

    Automotive radars are used on vehicles to help adjust the distance between vehicles and/or alert the driver when dangerous situations arise. Automotive OEM’s now include several safety systems covered by several sensors to reach the industry’s 5 stars’ level safety standards. These safety systems are designed with several antenna architectures in complex bumper/car chassis environments where the side effects, such as vibrations, become more and more significant on the radar performances. This application note presents how vibration effects can be calculated with Altair’s HyperWorks solver suite.

  6. Measuring Ultra Low Noise Metrological Reference
    4/4/2018

    Signal sources with very low phase noise have significantly improved in their performance over the past few years. However, it has also become increasingly difficult to measure such low phase noises with standard and even dedicated phase noise measurement systems. 

  7. Design And Simulate Phased Arrays With VSS
    4/4/2018

    As phased-array antennas become more popular for use in communication systems, new capabilities within the NI AWR Design Environment software now provide the means to develop new system architectures and component specifications, as well as implement the physical design of individual components and verify performance before prototyping. This application note covers the design and simulation capabilities of the Visual System Simulator™ (VSS) for phased-array antennas.

  8. Marines' “Mega Drone” Illustrates Need For High-Efficiency Microwave Power Modules
    4/3/2018

    The US Marines' “mega-drone" is intended carry the same payload as an F-35B and fly a radius of up to 700 nautical miles at 30,000 feet. This Marine Air Ground Task Force Unmanned Aircraft System-Expeditionary (or MUX, for short) also will be able to fill “an extremely broad range of missions."

  9. Time Domain Analysis Using A Network Analyzer
    4/3/2018

    This white paper focuses on the time domain analysis displays generated from vector network analyzers (VNAs). The paper will also cover frequency domain basics, an in-depth overview of how a time domain display is created from frequency domain data (S-parameters), and steps for applying the time domain display to common problems in RF systems.

  10. 3 Common Pitfalls Of 802.11ax DVT (That Test Developers Should Avoid)
    4/2/2018

    The transition from previous 802.11 standards, such as 802.11n and 802.11ac, to 802.11ax adds several new technologies and performance requirements that need to be fully tested. However, there are a number of challenges in designing these test scenarios.