Featured Articles

  1. Case Study: Using FEKO® To Reduce Heating During MRI For Deep Brain Stimulation

    Research at the Department of Medical Biophysics at the Sunnybrook Research Institute (SRI) aims to develop and demonstrate the application of new technologies for brain imaging. A recent project focused on developing ways to try and safely image patients with Deep Brain Stimulation (DBS), and reducing the heat created during an MRI as a result implant interaction with RF transmission fields. This case study details how FEKO® simulation software was used to create the electrical and magnetic fields required for imaging in an MRI environment.

  2. An Introduction To PIM

    The increased awareness around passive intermodulation (PIM) comes with the growing complexity of how spectrum is utilized. This white paper offers a brief introduction to PIM, and considerations for designing a system with PIM in mind.

  3. When Should A Design Consider Using Custom MMICs

    There are many challenges associated with improving the Size, Weight, and Power (SWaP) of electronic devices, including the limitation of the physical size and assembly processes, and spectrum congestion forcing new systems to move to higher frequencies. This article addresses these issues by discussing when to use a custom MMIC in the design process.

  4. Datalink Range Improvement

    When developing a communication datalink range, it is important to consider the ability to provide sufficient signal strength out to the intended operational range of the platform. This article discusses the options available to improve the datalink range for different applications.

  5. The Importance Of Size, Weight and Power (SWaP) To Mission Dominance In Unmanned Aerial Systems

    Unmanned aerial systems (UAVs) are continually advancing in respect to both defense and domestic applications. The fast development pace has led to an expanding list of missions that increase the demand on systems in terms of power consumption, payload, and the ability to operate beyond line of sight safely and reliably. This article discusses the importance of Size, Weight and Power (SWaP) to missions with UAVs.

  6. Power Amplifier Thermal Protection: Power Back Off

    Power amplifiers generate enough heat to require a method of sinking the heat away from the device. Sometimes, the amplifying device generates heat faster than the heat sink system can pull away. This article presents the use of temperature-controlled circuitry to shut down the internal amplifier to allow the device to safely cool before turning back on.

  7. Overview Of Multi-Channel Signal Generation Applications With R&S®SMW200A

    The R&S®SMW200A is a vector signal generator designed with the ability to simultaneously generate up to eight independent signals from one single instrument for use in complex applications such as MSR, carrier aggregation, MIMO, or other enhanced interference scenarios. This application note provides an overview of common multi-channel application examples and how to properly use the R&S®SMW200A signal generator.

  8. How To Speak Radar: Basic Fundamentals And Applications

    The evolution of radar has grown steadily over the decades to its present level that employs sophisticated computerized techniques which has stimulated the development of increasingly complex components. This white paper provides a basic introduction to radar technologies and to the application of radar equipment.

  9. Industrial IoT: How Smart Alerts And Sensors Add Value To Electric Motors

    This article explores how industrial IoT can produce real value for electric motors and factories.

  10. Synthesizing MIMO Antennas For Compact Devices With AntSyn

    Optimizing antennas by hand to meet multiple performance metrics such as impedance matching, coupling, radiation efficiency, and operating bandwidth is a time-consuming process involving numerous iterative simulations and a significant amount of design knowledge. This application note presents an alternative method using NI AWR Design Environment platform, specifically AntSyn™ antenna synthesis module, which enables designers to synthesize compact MIMO antenna arrays automatically from user requirements, saving significant design time.