On Wafer Microwave Measurements And De Embedding

This new authoritative resource presents the basics of network analyzer measurement equipment and troubleshooting errors involved in the on-wafer microwave measurement process. This book bridges the gap between theoretical and practical information using real-world practices that address all aspects of on-wafer passive device characterization in the microwave frequency range up to 60GHz. Readers find data and measurements from silicon integrated passive devices fabricated and tested in advance CMOS technologies. Basic circuit equations, terms and fundamentals of time and frequency domain analysis are covered. This book also explores the basics of vector network analyzers (VNA), two port S-parameter measurement routines, signal flow graphs, network theory, error models and VNA calibrations with the use of calibration standards.

This groundbreaking book is the first to give an introduction to microwave de-embedding, showing how it is the cornerstone for waveform engineering. The authors of each chapter clearly explain the theoretical concepts, providing a foundation that supports linear and non-linear measurements, modelling and circuit design. Recent developments and future trends in the field are covered throughout, including successful strategies for low-noise and power amplifier design. This book is a must-have for those wishing to understand the full potential of the microwave de-embedding concept to achieve successful results in the areas of measurements, modelling, and design at high frequencies. With this book you will learn: The theoretical background of high-frequency de-embedding for measurements, modelling, and design Details on applying the de-embedding concept to the transistor’s linear, non-linear, and noise behaviour The impact of de-embedding on low-noise and power amplifier design The recent advances and future trends in the field of high-frequency de-embedding Presents the theory and practice of microwave de-embedding, from the basic principles to recent advances and future trends Written by experts in the field, all of whom are leading researchers in the area Each chapter describes theoretical background and gives experimental results and practical applications Includes forewords by Giovanni Ghione and Stephen Maas

The first chapter is intended primarily for those readers who are new to the de-embedding concept. To serve as a gateway into this fascinating but also challenging field of knowledge, the present chapter will show how to extract the full potential of the microwave de-embedding concept, from the theoretical background to practical applications. As a broad definition, de-embedding can be regarded as the mathematical process by which electrical reference planes can be set to desired locations. Its importance originates from the fact that electrical characteristics are not always directly measurable at the reference planes of interest. Hence, moving the electrical reference planes mathematically enables one to discover precious information. With the aim to provide an introductory and comprehensive overview of the de-embedding concept, this chapter discusses its effectiveness for different purposes: measurements, modeling, and design. Experimental results will be analyzed to act as a valuable support for gaining a clear-cut understanding.

Just as physical microwave measurements must be de-embedded from test fixtures by means of calibration, electromagnetic analysis must likewise be calibrated so the results may be de-embedded. This chapter investigates the nature of the electromagnetic analysis port discontinuity, how it is characterized by calibration, and how it is removed (including a possible reference plane shift) by de-embedding. Both double-delay and short-open calibration are described. The theory for single port calibration and de-embedding is presented in a manner that is easily extended to treat multiple coupled ports. Additional theory shows how to extend calibration to groups of internal ports, critical, for example, in analyzing the passive planar portion of an amplifier (both the input and output matching networks in the same analysis) and having internal calibrated ports for connecting the transistor. Evaluation of error (accuracy) is covered in detail. Techniques that take advantage of calibrated ports, including circuit subdivision and port tuning, are described.

This chapter aims to describe experimental tools and techniques used for on-wafer millimeter (mm)-wave characterizations of silicon-based devices under the small-signal regime. We discuss the basics of scattering parameters (S parameters), high-frequency (HF) noise concept and measurement facilities, and expert details concerning experimental procedures. In this chapter, we describe first the basic notions of the S-parameters concept and its limitations, as well of as those HF noise. Secondly, the main experimental tools such as mm-wave vectorial network analyzer, noise setup, and on-wafer station are depicted. The third part concerns the description and the methodology of on-wafer calibration and de-embedding techniques applied for mm-wave advanced silicon devices. Finally, the last section focuses on the presentation and description of several examples of device characterizations. The main objective of this chapter is to propose a tradeoff between basic information and details of experience.

The chapter deals with two recently proposed characterization techniques of microwave transistors oriented to high-frequency power amplifier (PA) design. In particular, the nonlinear embedding and de-embedding design techniques are detailed, along with evidence of their advantages with respect to conventional design approaches in terms of power and frequency handling capability. The discussion also details the differences between the two techniques; despite the fact that they share the same theoretical basis, the techniques suffer from different critical facets. Finally, with the aim of guiding the reader towards full comprehension of the topic, different experimental examples are provided for transistor characterization and PA design.

Microwave systems are key components of every modern wireless communication system. The main objective of this book was to collect as many different state-of-the-art studies as possible in order to cover in a single volume the main aspects of microwave systems and applications. This book contains 17 chapters written by acknowledged experts, researchers, academics, and microwave engineers, providing comprehensive information and covering a wide range of topics on all aspects of microwave systems and applications. This book is divided into four parts. The first part is devoted to microwave components. The second part deals with microwave ICs and innovative techniques for on-chip antenna design. The third part presents antenna design cases for microwave systems. Finally, the last part covers different applications of microwave systems.

This chapter aims to describe methodologies and techniques for de-embedding device measurements from extrinsic measurements by characterizing the parasitic network surrounding the intrinsic device, through the use of a three-dimensional (3D) physical model of the network and its electromagnetic (EM) analysis. The electromagnetic behavior is obtained employing 3D EM solvers and internal ports. In the first part, the de-embedding processes for field-effect transistor (FET) devices to be used for monolithic microwave integrated circuit designs are studied by four different approaches; in the second part of this chapter, the de-embedding of FET devices for hybrid circuit design purposes is described.