Antenna apparatus for radio-based electronic devices

US9070976B2 · kind B2 · utility

Assignee

• Gigaset Communications GmbH · DE

Inventors

• Dietmar Gapski · Bocholt, DE
• Oliver Spiess · Bocholt, DE

Key dates

• Filing date: Dec 1, 2008
• Grant date: Jun 30, 2015
• Expiry date: Sep 29, 2031

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01Q9/42
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

An antenna apparatus is proposed, which can be operated outside in the vicinity around the antenna apparatus despite a shielding effect of an electrically conducting frame or electrically conducting housing. In the process, the electrically conducting frame or electrically conducting housing encloses a housing volume inside the housing, within said volume an electrically conducting connection being produced from a first to a second location of the electrically conducting frame or the electrically conducting housing. The first and the second locations are selected such that a radio resonance chamber is separated by a parallel radio resonance at a working frequency of the electronic device inside the enclosed housing volume by means of the electrically conducting connection.