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This paper discusses gallium nitride as the preferred technology over gallium arsenide for facilitating power levels up to 10 watts and providing superior performance with simpler handling and assembly requirements. Topics include circuit design implications for these higher power levels, surface mount packaging for simplified design, performance examples and applications.

3GPP 1) defined the fifth generation (5G) cellular technology in Release 15 to meet ITU’s IMT-2020 2) performance requirements and to enable a variety of services associated with usage scenarios such as enhanced mobile broadband (eMBB), ultra-reliable low latency communications (URLLC) and massive machine type communications (mMTC).

Global rollouts of 5G, and the expansion of the Internet of Things, creates significant new RF filtering challenges and Qorvo’s bulk acoustic wave (BAW) filters have advanced to solve them. They’ve evolved to support higher frequencies and increased bandwidth, utilize complex multi-filter modules, and mitigate the small form factor dilemma.

This eBook covers new market and design trends in GaN technology starting off with semiconductor trends in sub-6 GHz 5G Networks where the wider bandwidths and high efficiency are favoring GaN technology in many cases. Then Cobham covers AESA phased array and MIMO radar trends and new design techniques are covered with a modular system approach. The next two articles cover high efficiency GaN amplifier design techniques started with efficiency enhancement mechanisms for various class amplifiers and then a mmWave Doherty amplifier design. The last article introduces large-signal model technology by Wolfspeed and other resources available for high-frequency designers.

This eBook starts off with a market outlook with a summary of Ericsson’s 2020 Mobility report followed by many of the sub-6 GHz 5G technologies including the evolution of cellular technology, semiconductor technologies supporting the RF functions, applications for satellites in 5G and dynamic spectrum sharing for easy transition from LTE to 5G. The eBook also addresses the key technologies to successful 5G rollouts and how massive MIMO works. These are educational articles to enable you to learn more about the RF technologies behind sub 6 GHz 5G rollouts.

Designing RF systems to operate with wideband modulated signals, like 5G and RADAR, or with a large number of circuits, like active antennas, is challenging. AMCAD Engineering introduces new behavioral models for power amplifiers that include low and high-frequency memory effects allowing robust and accurate DPD algorithm evaluation and validation.

This article will provide a top-level view of Wolfspeed's large-signal models for GaN power transistors and their application in an RF design. The article will include an overview of Wolfspeed's GaN on SiC devices, the associated large-signal models, and their advantages versus real-world devices during the development process. The piece will continue with an overview of a typical design procedure and a case study, then conclude with a discussion of the resources available to designers and how to get started.

Your challenge: Testing coexistence and user experience to ensure high quality of service in real-world use, and ensuring security and product compliance for risk free market introduction. Rohde & Schwarz is a one-stop shop catering to all wireless RF coexistence test and measurement requirements.

On Saturday, May 30th, people across the world watched in awe as SpaceX launched a rocket, designed independently of any government, putting two astronauts into orbit on their way to the International Space Station — the first time in history for any commercial company. Ten years ago, this would have been an unthinkable endeavor for any commercial or private organization.

A Vector Network Analyzer (VNA) natively measures complex S-parameters of a device under test (DUT) in the frequency domain mode by sweeping across various frequency points. While there is an exhaustive list of measurements that can be accomplished in the standard frequency domain mode – using the advanced inverse Chirp z-transformation, the measurements can also be simultaneously analyzed in the time domain mode. This gives the added advantage where the two fundamental modes of analysis can be performed by one single instrument.