Broadband omnidirectional antenna

US9748666B2 · kind B2 · utility

Assignee

• Kathrein-Werke AG · DE

Inventors

• Claudia Daurer · Rosenheim, DE
• Manfred Stolle · Bad Aibling, DE

Key dates

• Filing date: Jun 26, 2014
• Grant date: Aug 29, 2017
• Expiry date: Oct 3, 2034

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01Q19/10
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

The invention relates to an improved antenna which is distinguished by, among other things, the following features: the antenna has a monopole radiator (11), which is vertically polarized; the antenna has at least two horizontally polarized radiators, which lie offset from each other in a circumferential direction about a central axis (Z); the antenna has a reflector (1), in front of which the at least two horizontally polarized radiators and the monopole radiator (11) are arranged at a distance (A); the at least two horizontally polarized radiators each comprise a Vivaldi antenna (5); the Vivaldi antennas (5) have a central and/or feeding surface (123), which forms a feeding plane (123′), in which an electrically conductive layer (27, 127) having slot lines (29′) that widen in a radiation direction is formed or provided, —the feeding plane (123′) is arranged at a distance (A) from the reflector (1); and the electrically conductive layer (27, 127) is led out of the feeding plane (123′), wherein at least one arcuate and/or bent extension (27a, 127a) is formed.