Introduction

The measurement results obtained in this chapter are the major factors that justify the price of an RF amplifier. The first test results of a new prototype are used for optimization purposes. Once the product is released, production-line testing with a manageable test depth takes place. Important properties are tested on each sample during final production-line testing.

Inaccurate testing can lead to additional cost-intensive design cycles or negatively affect the relationship between the manufacturer and customer. It may even lead to legal consequences. Accurate RF testing is a complex topic, and this chapter can only provide an overview. The information provided in this chapter was prepared with utmost care but it cannot be assumed to be complete or free of errors. This chapter is meant to be academic in nature; it cannot replace engineering or other professional services. The power levels covered in this book make it necessary to consider national and international safety regulations, e.g., for nonionizing radiation. The reader is advised to consult the applicable versions of the regulations.