Modular circuit arrangement used for attenuation compensation

US8380136B2 · kind B2 · utility

Assignee

• Funkwerk Dabendorf GmbH · DE

Inventors

• Helmut Nast · Berlin, DE
• Raimo Jacobi · Berlin, DE
• Frank Heyder · Berlin, DE

Key dates

• Filing date: Jan 26, 2008
• Grant date: Feb 19, 2013
• Expiry date: Aug 18, 2028

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B1/3822
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

The invention relates to a multi-band, multi-part circuit arrangement for compensating the attenuation of HF wireless signals in the signal paths between a transmitting and receiving device and an external antenna. The circuit arrangement comprises power amplifiers, receiving amplifiers, at least one splitter, at least one combiner, duplexers and frequency and/or band filters, HF switching means as well as a detector circuit for the detection of transmission signals from the transmitting and receiving device and for providing control signals for the HF switching means. It consists of a universal front-end module with HF switching means disposed on the antenna side for switching the signal paths on the antenna side, a broadband receiving amplifier and at least one splitter dividing the output signal of the receiving amplifier to several outputs of the front-end module, as well as a universal back-end module with HF switching means which is disposed on the device side and which is coupled with the transmitting and receiving device via the detector circuit for switching the signal paths on the device side, at least one receiving amplifier and at least one combiner, bringing together t…