Spiral antenna

US6750828B1 · kind B1 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Thomas Wixforth · Gütersloh, DE
• Eberhard Gschwendtner · Karlsruhe, DE
• Jean Parlebas · Burgstetten, DE

Key dates

• Filing date: May 10, 2002
• Grant date: Jun 15, 2004
• Expiry date: May 10, 2022

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01Q9/27
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A spiral antenna which can be supplied in different modes with different transmission characteristics is described. The spiral antenna includes four approximately parallel, electrically conducting spiral arms. The spiral arms are each connected to a coplanar conductor at their inner spiral arm ends for supplying and/or receiving signals.