Featured Articles

  1. Introduction To Qorvo’s 100 MHz ET For 5G
    5/22/2019

    With the rise in handset RF complexity, envelope tracking (ET) has become the optimal choice for RF power amplification in mobile handsets. This application note discusses Qorvo’s 100 MHz envelope tracking integrated circuit (ETIC) for 5G applications.

  2. The Increasing Importance Of Increasing Ports: Addressing The Challenges Of Multiport Test
    5/21/2019

    A multiport VNA significantly reduces test time to deliver highly accurate measurements on multiport devices. The flexible modular configuration, fast measurement times, and high performance make VNAs the right tool for multiport testing. 

  3. The Essential Signal Generator Guide: Building a Solid Foundation in RF – Part 2
    5/21/2019

    In order to offer customers a robust and reliable high-speed wireless connection, you first need the right signal generator. This white paper is the second part of a guide to understanding signal generators. It offers an overview of various modulation schemes, the importance of spectral purity, and the benefits of distortion.

  4. Introduction To Specifying RF/Microwave Power Amplifiers For EMC Testing
    5/17/2019

    Historically, amplifier selection for Electromagnetic Compatibility (EMC) testing was based mainly on tribal knowledge and information scattered across the EMC industry. This application note provides the EMC test engineer or technician with the information necessary to make the proper decision.

  5. Cost Effective Full-Duplex Systems Utilizing a Semi-Custom Approach
    5/15/2019

    The requirements of modern datalinks in the UAV and large airframe market present challenges for systems designers. Many modern communication systems often require full-duplex operation, and several systems may be operating on a single airframe.

  6. Extending The Range Of A Low Power UAV Radio
    5/15/2019

    Low-power UAV radio systems, though designed for short distance communications, can be an inexpensive and reliable means of communications over greater distances – especially when the application is small UAS platforms.

  7. IoT Standards: The End Game
    5/15/2019

    It can be confusing to try to pick standards while waiting for 5G or NB-IoT deployments. This article answers the question of which standards are best to use and looks ahead at the future of wireless technologies to help gain a better perspective as to where things are headed.

  8. Measurement Of Beamforming Antenna In Transmit Mode
    5/14/2019

    Rapid and accurate verification of beamforming weights is required for example, for codebook generation, or beamforming algorithm development or verification. This white paper describes the unique application of Rohde & Schwarz’s vector network analyzers to fully characterize the passive part of multi-element antennas intended for beamforming.

  9. Noise And Noise Figure: Improving And Simplifying Measurements
    5/14/2019

    As noise and noise figure measurements have become increasingly complex, signal analyzers have evolved to support easy-to-use measurement applications that help reduce complexity while instilling confidence that the results are accurate. This application note presents a number of ideas to help improve noise figure and noise figure measurements using a compact system based on a Keysight X-Series signal analyzer, an internal or external preamplifier, and an external noise source.

  10. Performing Differential Noise Figure Measurements
    5/14/2019

    In recent years, numerous improvements have been made in noise figure measurements through better algorithmic understanding of the measurements, more sensitive receivers, and less error-prone methods of processing noise power measurements. Anritsu has incorporated a number of these improvements in the single-ended Noise Figure Measurement Option of the VectorStar vector network analyzer (VNA) platform. This application note offers insights into and examples of performing differential noise figure measurements.