Inverted F-antennas at a wireless communication node

US9252502B2 · kind B2 · utility

Assignee

• Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

• Anders Ek · Lindome, SE
• Ola Kaspersson · Varberg, SE
• Håkan Karlsson · Stockholm, SE

Key dates

• Filing date: Jun 18, 2013
• Grant date: Feb 2, 2016
• Expiry date: Apr 10, 2034

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01Q21/29
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

The disclosure relates to a node in a wireless communication arrangement, the node comprising an antenna arrangement that comprises a first and second inverted F antenna. The inverted F antennas comprise a corresponding first and second feed connection, first and second ground connection and a corresponding first and second radiating element mainly extending from the respective ground connection along a corresponding first and second longitudinal extension. The inverted F antennas are arranged on, or in, a plane. Furthermore, the first and second radiating elements are extending in opposite directions along their respective longitudinal extensions from the respective ground connections, the first longitudinal extension and the second longitudinal extension being mutually parallel. The closest distance between the first radiating element and the second radiating element exceeds 0,4*λ0, where λ0 is the wavelength for the centre frequency of the frequency band for which the inverted F antennas are intended.