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.
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.
Can you imagine the world without Electronic devices? Today’s electronic gadgets, machines and appliances have become an integral part of our lives. This is most apparent with recent developments in technology like drones, mobile internet, medical devices, Internet of Things (IoT) and autonomous vehicles. Historically, amplifier selection for Electromagnetic Compatibility (EMC) testing was based mainly on tribal knowledge and information scattered across the EMC industry. However, proper EMC amplifier selection is an important step in achieving required RF levels. This application note provides the EMC test engineer or technician with the information necessary to make the proper decision.
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.
In traditional arrays an inter element spacing of less than half the wavelength (<λ><λ/2) is required to mitigate grating lobes. To understand the shift in system design this brings about, this paper looks at the physical scale of different wavelengths compared to some familiar references.
As technology evolves, electronic devices continue to take on a more mobile and virtual nature. While RF and microwave amplifiers themselves may never become truly ‘mobile’, the way we control them can be. AR’s new ampwebwARe gives you the capability to monitor and control your amplifier remotely without needing any software of your own. The software allows for remote communication to AR amplifiers through any device connected to the same network as the amplifier via an embedded webpage.
This example demonstrates an antenna array for 5G 60 GHz applications of wireless communication for wearable devices such as virtual reality headsets. The antenna design for this example is from the paper by Hong and Choi of Hanyang University. The array is composed of four elements which each have two patches and a parasitic element. The parasitic element aids in producing a wider beam in one dimension to give better coverage. The beams may be steered by varying the phase shift between elements to provide near hemispherical coverage.
When reliability counts, Skyworks delivers. Vital medical equipment such as patient monitors and scanners rely on solutions from Skyworks to ensure two-way communication.
In the past, traveling wave tube amplifier (TWTA) and gallium arsenide (GaAs) were the go-to RFFE technologies for power amplification in satcom. Now, GaN and GaAs semiconductor technologies are becoming the go-to solutions; GaN has been replacing TWTAs due to its high-power performance and reliability combined with a small form factor. GaN and GaAs are enabling a wide variety of commercial and military satcom applications, such as 5G backhaul, ultra-HD TV transmission, satcom-on-the-move, internet access for aircraft passengers, and manpack terminals.
Plus, China Unicom accelerates its commercial 5G rollout, Cisco argues the significance of wi-fi to 5G's rollout, "floating cell towers" are explored, and more, all in this edition of The Week in 5G.
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