High frequency switching circuit and method for determining a power of a high frequency signal

US8326234B2 · kind B2 · utility

Assignee

• Infineon Technologies AG · DE

Inventors

• Winfried Bakalski · Birkenfeld, DE
• Hans Taddiken · Munich, DE
• Nikolay Ilkov · Munich, DE
• Herbert Kebinger · Mühldorf a. Inn, DE

Key dates

• Filing date: Feb 12, 2010
• Grant date: Dec 4, 2012
• Expiry date: Apr 1, 2030

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B1/48
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A high frequency switching circuit, including a high frequency switching element. The high frequency switching element including a first channel terminal and a second channel terminal, wherein the high frequency switching element is configured to switchably route a high frequency signal via a channel path between the first channel terminal and the second channel terminal. The high frequency switching circuit further includes a power detection circuit, wherein the power detection circuit is configured to obtain a first measurement signal from the first channel terminal and a second measurement signal from the second channel terminal, and to combine the first measurement signal and the second measurement signal to derive, in dependence on both the first measurement signal and the second measurement signal, a power signal describing a power value of the high frequency signal routed via the channel path of the high frequency switching element.