Antenna arrangement in radio-controlled wristwatch

US6411569B1 · kind B1 · utility

Assignee

• Junghans Uhren GmbH · DE

Inventors

• Gunter Megner · Überlingen, DE
• Rudiger Daut · Schramberg, DE

Key dates

• Filing date: Jun 6, 2000
• Grant date: Jun 25, 2002
• Expiry date: Jul 6, 2020

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01Q1/273
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A radio-controlled wristwatch includes a casing. A central portion of the casing disposed generally centrally with reference to a longitudinal center axis of the casing is formed of metal at least on the exterior thereof. An antenna core is disposed within a chamber defined by the casing. The antenna core lies on a plane oriented transversely with respect to the longitudinal axis. A spacer ring is disposed in the chamber between the central portion and the antenna core, the spacer ring formed of electrically non-conductive material.