Modular filter/duplexer system

US11496161B2 · kind B2 · utility

Assignee

• Andrew Wireless Systems GmbH · DE

Inventors

• Frantisek Ondracek · Pardubice, CZ
• Roman Hofman · Přelouč, CZ
• Martin Kufa · Chlumec nad Cidlinou, CZ
• Libor Strachon · Holice, CZ
• Peter Schmid · Rain, DE

Key dates

• Filing date: Feb 6, 2020
• Grant date: Nov 8, 2022
• Expiry date: Apr 18, 2040

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L5/14
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A modular filter system includes a front panel, a back panel, and a multiband combiner coupled to the front panel, the combiner including an antenna connector and filter connectors. The modular filter system further includes filter modules separate from the combiner, each filter module including first and second connectors to pass respective frequency bands, and a combiner connector to pass the frequency bands. Each filter module is configured to duplex, combine, or split first signals in the first frequency band and second signals in the second frequency band. The combiner connector of each filter module is coupled to a respective filter connector using a respective cable. The modular filter system further includes a fixing system comprising bars and plates, the bars coupled to the front and back panels using fasteners, wherein the bars and plates are configured to secure the filter modules between the combiner and the back panel.