Month: October 2021

About the Physical Relevance of Optimizer-Based Extracted Model Elements with Gunter Kompa

Commonly small-signal model parameter extraction of microwave devices with a higher degree of complexity relies on optimization. This is outlined in more detail in my book Parameter Extraction and Complex Nonlinear Transistor Models. There are numerous optimization methods proposed in the literature. Based on a physical device model with a defined number of model elements …

The Book and Beyond with Adrian Cardalda-Garcia

Artech House author of Adrian Cardalda-Garci Location Based Services, shortened LBS, are a fundamental part of cellular networks. In the 5G ecosystem, the applications of LBS are increasing exponentially, not only for smartphones, but also for autonomous driving, UAVs, the Industry 2.0, eHealth and a large number of industry verticals. With this promising future, one …

Microwave and Millimeter-Wave Vacuum Electron Devices with A.S. Gilmour, Jr.

Gilmour Brochure Written by an internationally recognized as an expert on the subject of microwave (MW) tubes, this book presents and describes the many types of microwave tubes, and despite competition from solid-state devices (those using GaN, SiC, et cetera), which continue to be used widely and find new applications in defense, communications, medical, and …

RF and Optical Device Integration with Geoff Varrall

RF and Optical Device Integration There are some things that are obvious to say but are still worth saying and the same principle applies to technical writing; however much the reader knows and understands, every story has to have a starting point. That starting point is often some combination of material and manufacturing innovation that …

Set the Appropriate Measuring Range for Consistent Model Parameter Extraction with Gunter Kompa

Measuring the scattering parameters of a microwave transistor to develop an appropriate small-signal device model, the question may come up about the minimum frequency range needed to extract reliable  model parameter values. This issue has been studied intensively for microwave devices based on GaN technology and discussed in detail in my book Parameter Extraction and …

Blockchain applications and limitations in Cyber-Physical Systems with Ali Dorri

Blockchain applications and limitations in Cyber-Physical Systems – CPS Cyber-Physical Systems (CPS) integrate sensing, networking, and computation capabilities where millions of networkable devices sense the environment to capture information. Using network infrastructure, mainly the Internet, the information is transferred to cloud servers where it is processed to offer personalized services to the users. The data …

Integrating Theories to Manage Sensors with Kenneth Hintz

Artech author Kenneth Hintz gave us insight into theories of sensor management: There is no single theory of sensor management due to the heterogeneity of sensors (physical, social, cyber, database), applicable mathematics (game theory, estimation, information, statistics, probability), and users with different needs (strategic, tactical) and values (local, national, political, ethical).  What started out as …