Feature Articles

  1. Simulating A Beam Scanning Substrate Integrated Waveguide Leaky Wave Antenna In XFdtd
    6/14/2019

    In this example, XFdtd is used to simulate the performance of a substrate integrated waveguide (SIW) leaky wave antenna with transverse slots. The antenna operates like a transverse slotted rectangular waveguide, but is designed in SIW for reduced cost, size, and for easier integration with planar circuits. Results for S-parameter performance, antenna gain, and efficiency are computed.

  2. Specifying RF/Microwave Power Amplifiers for EMC Testing – HIRF And High Frequency Field Generating Systems
    6/13/2019

    The ability to pull together the right amplifiers for the job, with training and ongoing support is one of many important elements to building a system. This article is part three of AR’s series “Specifying RF/Microwave Power Amplifiers for EMC Testing,” and details the design requirements for HIRF and high frequency field generating systems.

  3. Specifying RF/Microwave Power Amplifiers For EMC Testing – Amplifier Input And Output Requirements
    6/13/2019

    When choosing an amplifier, how much input power is required to achieve full rated output power? This article is part two of AR’s series “Specifying RF/Microwave Power Amplifiers for EMC Testing,” and details the requirements for an amplifier’s input and output values.

  4. Tips And Trends: Small Cell 5G Systems
    6/12/2019

    The role of small cells is increasing with each new network and is driven by the need for faster data speeds and capacity. This article presents the latest insights on small cell market trends, RF front-end challenges, and practical solutions to meet user and manufacturer needs.

  5. The Week in 5G: 6/11/2019 — Huawei To Handle Russia’s 5G Rollout, U.S. FCC Auctions 24 GHz and 28 GHz Spectrum
    6/11/2019

    Also, China’s government green-lights its major state-owned carriers to begin 5G network rollouts; Qualcomm And Lenovo claim the world’s first prototype 5G PC; telco Three announces its intent to enter the UK 5G market this year, and more, all in this edition of The Week in 5G!

  6. Simulating Performance Of A Low Cost, Chipless RFID System In XFdtd
    6/10/2019

    In this example, an RFID tag system is examined using XFdtd EM Simulation Software to validate its performance for use in situations where high volume usage requires very low-cost components. The RFID tag is constructed as a microstrip device with spiral resonators tuned to specific frequencies that represent separate bits of the tag code. The resonators are connected to two cross-polarized ultrawide band monopole disk antennas which receive and transmit the signal from the scanning system. The system is demonstrated with a design capable of encoding six bits that are formed by resonances 100 MHz apart between 2.0 and 2.5 GHz. The testing is done using two cross-polarized log period dipole array antennas which transmit and receive the signal from the RFID tag.

  7. Qorvo’s 100 MHz ET For 5G
    6/5/2019

    As cellular technology advances and modulation complexity increases, the requirements on RF components have become more and more stringent. RF Power and linearity demands have continued to rise opposing the strong desire for decreased current consumption, which directly affects both battery life and thermal performance. 5G is no exception. 5G’s specifications impose a difficulty multiplier, creating unprecedented RF challenges for our industry.

  8. Using Broadband Bypass Capacitors For High Speed Optical And mmWave
    5/31/2019

    This article examines the use of broadband bypass capacitors for use in microwave and mmWave frequencies, especially those used in RF applications and optical communications.

  9. The Price Of Reliability: Considerations For Buyers
    5/31/2019

    Capacitors are one of the many components that contribute to the overall longevity of an implantable medical device. By making a small component change, one could extend its reliability, and even its lifespan, by preventing battery related complications. This white paper explores the cost of device failures and how proper testing and supplier considerations are used to help navigate capacitor sourcing for medical device applications.

  10. The Future Of IoT Will Require LTE Connectivity
    5/22/2019

    As the promise of a wirelessly connected world becomes a reality, there is a growing need for LTE technologies that address low cost, long battery life, security, and reduced complexity — all critical components for IoT.