Power detector with constant voltage decoupling

US7088089B2 · kind B2 · utility

Assignee

• Rohde & Schwarz GmbH & Co. KG · DE

Inventors

• Gerd Hechtfischer · Vaterstetten, DE
• Michael Katzer · Munich, DE

Key dates

• Filing date: Jan 28, 2003
• Grant date: Aug 8, 2006
• Expiry date: Jan 28, 2023

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R21/12
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A power detector for measuring the average power, without constant voltage, of modulated or unmodulated high frequency or microwave signals is described. The power detector includes a signal line connected to a high frequency input. A detection line is capacitively and/or inductively coupled to the signal line and, seen in the longitudinal direction, is connected to the signal line. The signal is tapped from the detection line at two or more detection positions which are staggered in the longitudinal direction.