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The Cellular GaN Era Has Arrived
The articles in this eBook make the case for GaN for cellular applications. It begins with two views of the market trends and how these translate into forecasts, from Yole Développement and Strategy Analytics. Since efficiency is so important to power amplifiers, a foundational article by Rohde & Schwarz reviews the fundamental mechanisms that can improve PA efficiency: waveform engineering, supply modulation and load modulation. Illustrating waveform engineering, an article from researchers at Huazhong University of Science and Technology describe the design of a dual-band, continuous inverse class F PA. The following article examines the topology options for mMIMO PAs. Looking to the future, it concludes with an article describing development of a 28 GHz, ½ W linear, asymmetric Doherty PA MMIC.
Fundamentals of Radar and RF Power Generation
This eBook covers the fundamentals of radar technology and RF power generation theory. The first article covers the military radar market and outlook through 2025 followed by an extensive article that takes a comprehensive look at the many aspects of radar technology including the basics of radar operation, how radar works and various types of radar systems. The next two articles review the theory of operation for receiver protectors and magnetrons. The last article covers the underlying concepts of receiver protector life and how they apply to actual performance. This is a very good guide to the basics of radar and the theory of operation of the key components that generate high power RF signals for radar systems.
Making Accurate 5G mmWave Measurements Guide
This eBook takes a look at new measurement tools, connectors and components that will help in modernizing your measurements for accurate higher frequency characterization. After an overview of mmWave markets and challenges for EMC, the following articles cover accurate VNA measurements made when the DUT needs to be far from the instrument like a far-field antenna, vehicle or propagation measurement. The next article surveys waveguide antennas for mmWave use so that you can understand the basic performance of waveguide antennas when choosing an antenna for a mmWave system or test setup. Then a traceable K connector for measurements to 43.5 GHz is described. The last article is about 110 GHz coaxial components for the mmWave market, including bias tees, DC blocks and directional couplers. These components are metrology-grade, with excellent electrical and environmental performance, designed to be used with any measurement equipment that provides coverage to 110 GHz. Learn how to modernize your measurement and testing systems to accurately support higher frequency measurements.