Feature Articles

  1. The Week In 5G: 10/30/2018 – President Trump Plans 5G Spectrum Strategy, OnePlus To Launch EU's First 5G Phone
    10/30/2018

    U.S. President Trump wants a 5G strategy formulated in the next nine months, AT&T unveils a 5G mobile hotspot, China's OnePlus aims to release the EU's first 5G phone, and more, all in this edition of The Week in 5G. 

  2. Spectral Efficiency And Filter Temperature Stability
    10/26/2018

    This article discusses the use of he Shannon-Hartley Theorem in the context of 5G mmWave applications and how it may be used to find the number of bits/second expected in each section of bandwidth. This, in turn, relates to spectral efficiency and filter temperature stability.

  3. Configuring AR RF/Microwave Instrumentation Systems Producing 200 V/m CW Or PM From 10 kHz To 40 GHz
    10/24/2018

    This application note provides various amplifier and antenna configurations that will satisfy 200 V/M radiated susceptibility requirements from 10 kHz to 40 GHz, such as DO-160G (100 MHz – 18 GHz) and MIL-STD-461 (10 kHz – 40 GHz). Also, presented in this application note are typical radiated immunity test configurations showing the implementation of amplifiers and antennas.

  4. The Week In 5G: 10/23/2018 – FCC Plans To Issue County-Sized Licenses In 3.5 GHz Band, Huawei Confirms Foldable 5G Phone
    10/23/2018

    The U.S. and India settle spectrum licensing spats, China's Huawei and Xaiomi tout their 5G phones, and Samsung and NEC join forces, all in this edition of The Week in 5G!

  5. Model-Based GaN PA Design Basics: The What And Why Of Intrinsic I-V Waveforms (Part 3)
    10/18/2018

    Understanding the impact and nuances of I-V curves is a fundamental part of learning how to design GaN power amplifiers. This is the third part in an ongoing series looking at the importance of GaN HEMT nonlinear models for rapid power amplifier (PA) design success.

  6. 5G/4G Combined Antenna Analysis In A Smartphone Using EM Simulation
    10/17/2018

    This example uses XFdtd EM Simulation Software to analyze the performance and interaction of two antenna systems operating at 4G (860 MHz) and 5G (28 GHz) in close proximity in a smartphone design. 

  7. The Week In 5G: 10/17/2018 – AT&T To Begin mmWave Tests, Xiaomi To Unveil First True 5G Phone
    10/17/2018

    The European Space Agency joins the EU's 5G development effort, U.S. lawmakers try to meddle in Huawei's Canada dealings, Verizon hits a wall (many walls) during its 5G rollout, and more, all in this edition of The Week In 5G.

  8. Understanding Microstrip Filter Topologies
    10/11/2018

    The behavior of transmission lines in RF systems becomes important when the transmitted frequency’s wavelength is short enough that the length of cable becomes a significant part of a wavelength. Microstrip consists of a conducting strip separated from a ground plane by a dielectric substrate. 

  9. The Week In 5G: 10/9/2018 – Huawei Claims Ban Will Delay U.S. 5G Deployment; 5G Threatens Cable Broadband Monopoly
    10/9/2018

    Huawei pleads its case in the U.S., Verizon targets competitors' broadband dominance, Seattle takes the fight to the FCC, and spectrum auction costs continue to spiral out of control, all in this edition of The Week In 5G. 

  10. ESD Design Strategy For Mobile Devices: Using System-Efficient ESD Design (SEED) Methodology
    10/2/2018

    The electrostatic discharge (ESD) phenomenon is a natural occurrence that can destroy sensitive electrical circuits, even in small amounts. Part 1 of this paper explains why system-level ESD protection matters, providing insight on test models and strategies to improve system-level ESD protection in mobile devices.