Feature Articles

  1. Countering Small Unmanned Aircraft Systems (sUAS)
    1/10/2019

    The small Unmanned Aircraft Systems (sUAS) market has experienced exponential growth with the advent of brushless electric motors and high energy density lithium batteries. This means that the average person can shoot aerial photographs and video, capture extreme sports moments, and enter the sport flying hobby with aircraft that are electronically stabilized and considerably less expensive to own and operate. However, this also increases potential for weapon platforms, privacy violations, and interference.

  2. Optimizing RF And Microwave Spectrum Analyzer Dynamic Range
    1/2/2019

    Dynamic range specification determines whether or not low-level signals will be visible in the presence of large signals and therefore is one of the most important performance figures for a spectrum analyzer. 

  3. Building A Fixture For C-Band Satellite Communications Power Amplifier Applications Using Two GaN HEMTs
    12/19/2018

    Wolfspeed, a Cree Company, developed an application circuit that demonstrates the ability for their CGHV1F025S to operate between 4400 MHz to 5000 MHz for satellite communication applications. The circuit utilizes two devices connected using a Wilkinson combiner in a balanced configuration. This application note describes the typical performance that has been achieved and what can be expected when evaluating the application fixture.

  4. The Essential Signal Generator Guide Building A Solid Foundation In RF – Part 1
    12/17/2018

    Selecting the right testing instrument for a project is essential to get products to market faster. This is Part 1 of a two-part white paper discussing signal generators. This paper offers an overview of the fundamentals of signal generators, enabling users to make the right decision when selecting one for different applications.

  5. What’s Best? Wi-Fi 6 (802.11ax) Or 5G?
    12/17/2018

    Every time a new cellular phone standard comes out, we see new claims about the “end of Wi-Fi.” When 3G was announced, the promise was that it would make Wi‑Fi (802.11b) redundant, which clearly turned out to be incorrect. With 4G (LTE), this story repeated itself and claimed it would put Wi‑Fi (802.11ac) in the shredder. And now the 5G message is that it will cover both the inside and outside of homes and buildings. It’s almost as though Wi‑Fi will soon no longer be needed. This begs the question: What will be the impact of the next generation of Wi‑Fi, Wi-Fi 6 (802.11ax)? Do we even need it in the 5G/wireless landscape? This article discusses the answers.

  6. White Paper: Modeling RF Propagation In Mines Using Wireless InSite
    12/12/2018

    This paper presents results from modeling RF propagation in a mine using Wireless InSite®. The Edgar Mine in Idaho Springs, CO provided the realistic scenario for the model. The path loss exponent was evaluated for a 5m section of the modeled mine by considering three different materials and three different standard deviation of surface roughness values for dry granite. When comparing this simulated data with data retrieved from the Edgar Mine it was determined that the Uniform Theory of Diffraction (UTD) ray tracing code, of Wireless InSite, can portray a communications system within a mine environment.

  7. White Paper: Complex 3D Modeling Of Sea To Land Scenario
    12/12/2018

    This paper presents results from sea to land propagation using Wireless InSite®. The effort explores the effects of various elements in the scene and how they impact the results. The various elements in the scene include the ships out at sea, the ships docked, the docks themselves, the buildings around the dock area, and the material properties of each.

  8. Advancements In Broadband Amplifiers
    12/12/2018

    The basic amplifier design and mode of operation have remained relatively unchanged until recently. This white paper discusses recent advancements in amplifier design that provide flexibility and efficiency, creating a new class of “smart amplifiers.” These new amplifiers allow for user-defined, dynamic, and simultaneous variation of the core amplifier parameters during operation, and enable the optimization of performance for an extremely wide range of applications.

  9. Automotive Radar Technology, Market And Test Requirements
    12/5/2018

    The automotive industry is continuously adding more radar sensors that support drivers in critical situations. Radar enables quick, precise measurement of the radial velocity, range, azimuth angle and elevation angle of multiple objects, so it is often used in advanced driver assistance systems (ADAS).

  10. Preparing For The SWARM
    12/5/2018

    Commercial and government programs are aiming to employ “swarms” of UAV’s in domestic and overseas operations. This includes counter-UAS systems, intelligence, surveillance, reconnaissance, near-space and hurricane hunting drones. Swarms of UAVs can be controlled through autonomous UAV synchronization and formation flight, requiring minimal sensor operators.