Feature Articles

  1. 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!

  2. 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.

  3. 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. The 4G antenna is intended to produce a broad pattern for wide coverage while the 5G array should produce narrow beams that can be steered by varying the phasing between elements. The 4G antenna is an inverted-L design and is located at the top of the phone. The 5G antenna array consists of four Yagi-Uda elements that are near the 4G antenna but offset by a conducting block.

  4. 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.

  5. 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. 

  6. 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. 

  7. 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.

  8. The Week In 5G: 10/2/2018 – Verizon's 5G Network Goes Live, FCC Hell-Bent On 5G Dominance
    10/2/2018

    Verizon's four-city 5G rollout in the U.S. has begun, the FCC passed rules to stifle local governments' authority regarding infrastructure placement and fees, spectrum auctions in the EU are pricier than expected, and Huawei scores wins in Russian and Monaco, all in this edition of The Week in 5G!

  9. 5G New Radio Solutions: Revolutionary Applications Here Sooner Than You Think
    9/26/2018

    5G technologies promise to deliver higher data throughput, extremely low latency, and speeds up to 100 times faster than 4G. This paper explores the practical first steps of a roll out and focuses on the spectrum below 6 GHz as standards for millimeter-wave applications have yet to be determined.

  10. The Week In 5G: 9/25/2018 – FCC Sets Tighter Deadlines And Fee Caps On Localities, Vodafone Makes UK's First Holographic Call
    9/25/2018

    The FCC clamps down on local governments; spectrum auctions heat up in Germany and India; Intel, Huawei, and Samsung share hardware news; and Trump's tariff war casts a cloud over U.S. 5G rollouts, all in this edition of The Week in 5G!