Frequency-converting sensor and system for providing a radio frequency signal parameter

US9544070B2 · kind B2 · utility

Assignee

• Rohde & Schwarz GmbH & Co. KG · DE

Inventors

• Toralf Bratfisch · Putzbrunn, DE
• Michael Katzer · Munich, DE
• Kurt Schmidt · Grafing, DE
• Marcel Thraenhardt · Munich, DE
• Thomas Reichel · Heroldsbach, DE

Key dates

• Filing date: Jan 19, 2015
• Grant date: Jan 10, 2017
• Expiry date: Jan 19, 2035

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L2027/0016
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A frequency-converting sensor is provided for generating at least a radio frequency signal parameter, such as an electrical power value. The sensor comprises an analog receiving section configured to convert an input signal into corresponding I/Q components using a local oscillator frequency, an analog to digital converting unit configured to convert the corresponding analog I/Q values into digital I/Q values, and a digital processing unit. The digital processing unit comprises an adjustable filtering unit configured to select a sideband of the digital I/Q values, and a calculating unit configured to calculate the radio frequency signal parameter from the I/Q-values of the selected sideband. A system is further provided for analyzing radio frequency input signal parameters, wherein the system incorporates a device under test, which generates the radio frequency signal, the sensor and a display device.