eBooks

The need to address EMC/EMI problems has never been more pressing. As electronic devices become smaller, faster, and more powerful, the potential for interference grows exponentially. It's no longer sufficient to simply design and build electronic systems without considering their EMC/EMI characteristics. Engineers, designers, and technicians must proactively identify and mitigate these issues to ensure that their products meet regulatory standards, perform reliably, and avoid costly setbacks. This eBook provides an understanding of the underlying principles, practical methodologies, and advanced techniques for dealing with EMC/EMI challenges. It is designed for both newcomers seeking a foundational knowledge of the subject and experienced professionals looking to deepen their expertise.

This eBook explores several new trends in aerospace and defense. It covers a variety of topics including pulse droop in long pulse width, high-power, solid-state amplifiers used for radar and EW systems; how the creation of an air cavity in the PCB stack-up decreases the insertion losses of the traces and increas­es the antenna performance in the mmWave bands; dis­cussion of supply chain security and counterfeit detection using universal chip telemetry; and the nuances of space level qualification and the screening process for these devices.

This eBook addresses some of the challenges and considerations when developing architectures and components to support these new multi-band, multi-services capabilities. The first article gives a good overview of multi-band microwave direct access using synthetic aperture radars using earth observation applications as an illustration. Articles two through four address how direct data converters and other components are enabling software satellites and other multi-band, multi-services transceivers. The final two articles explore using data converters and signal processing, in conjunction with optical interconnects to replace copper in the transport layer. We hope that this eBook gives you a good overview of the possibilities that can be enabled by high performance, direct access, multi-band, multi-services networks.

High-speed digital communications have been adopted so quickly because of a variety of performance advantages. The signals are quantized and may be encoded, making them less susceptible to noise and interference, which also increases the acceptable transmit range. Complex modulation schemes increase spectral efficiency, allowing for higher data rates and errors can be detected and corrected with processing. However, these communications networks must accurately reconstruct the sampled incoming signal, making timing synchronization critically important. This eBook focuses on jitter, simply defined as any effect that causes signal threshold crossing times to deviate from their expected positions. The first article addresses the inter-relationships between jitter and other noise-generating mechanisms. The second explains the types and sources of jitter and the third looks at how jitter propagates through the channel. The final six articles in this eBook show Skyworks’ broad portfolio of frequency flexible timing products along with how they compare to and can be incorporated with solutions from six different suppliers.

This eBook addresses some of the challenges of EMC testing in a variety of applications, with the first article addressing a method to speed up testing to improve throughput. The second article addresses some of the specific EMC challenges and solutions unique to e-mobility applications and the third article addresses the benefits of pre-compliance EMC testing. The final three articles in this eBook show how products and test methods from AR can help provide solutions. We hope that this eBook gives you a good overview of the importance of EMC testing along with some of the associated challenges. 

The New Space market is growing fast, and LEO Satellite Systems require the latest RF technology for communications and data transmission. This eBook covers the latest in LEO constellations and RF technology for power amplifier and components. The first two articles cover Ka-Band amplifiers and how GaN is changing the RF front end. GaN technology offers more efficient power solutions, opening up new ways to configure systems to reduce power consumption and heat dissipation. Other articles review the broadband satellite market, GlobalStar LEO Satellite System, Kuiper’s terminals, and the use of COTS components for Space applications.

With direct-to-satellite connectivity, unmodified cellular smartphones and IoT devices can now leverage satellite communications networks. These new capabilities will meet the needs of many applications for connectivity in remote areas where cellular service is unavailable while supplementing them in areas with cellular service already available. This eBook looks at various satellite communications trends along with the challenges and solutions related to device and system simulation and testing for these markets. Keysight Technologies, the sponsor of this eBook, presents end-to-end capabilities for testing and evaluating devices, subsystems, and systems for the growing satellite market.

The Cables & Connectors Special Focus section from the March Test & Measurement issue has been made into this eBook with articles covering the RF SMP board to board connector market review and RF interconnect requirements for high performance quantum computing technologies. There are also product feature articles and a new products section with the latest solutions for high frequency applications.

This eBook covers several design trends and technologies with high linearity devices ranging from switching to power amplifiers to complete systems. The first two articles cover new RF SOI device technologies addressing 5G MIMO and mMIMO systems. The next article looks at what the perfect HF receiver look like today - one that combines all available technologies into the most modern concept of a software-defined receiver. The next article covers Improving Linearity of a Doherty Power Amplifier with a Dual-Bias Structure. The article after that continues to cover integrated PA topologies for 5G mMIMO. 5G NR RF front end design engineers can benefit from understanding these trends and aspects of the new RF hardware and technologies needed to address the new challenges of 5G, so the next article covers these aspects. Finally, the capabilities and impact of new SOI tunable filter ICs on the design of the RF chains of phased arrays are discussed.

Filters are a critical component in any wireless system and in many the most numerous devices in the signal chain. There are many types of filters and even more ways of realizing them in with various processes and materials. This eBook from Knowles, reviews the basics of filter methods and types plus the critical performance parameters. By providing this detailed fundamental filter information, we hope to help you simplify your future filtering decisions.