Design of inline power sensors and performance evaluation

An inline power sensor is used to measure the forward power passing from an RF source to load. It can be used to measure power under operating conditions such as during the installation, maintenance, and monitoring of base station transmitters. This paper is to report an overview of the characterization of key components of Anritsu Company's MA24104A Inline High Power Sensor. The characterization method is based on recommended international standards. A brief description of the architecture and operational principle of the sensor will be presented. Finally, uncertainty budgets based on the measurement model for the inline power measurement are calculated.