Browse Prior Art Database

ANTENNA FOR A WEARABLE ELECTRONIC DEVICE

IP.com Disclosure Number: IPCOM000008910D
Original Publication Date: 1999-Jan-01
Included in the Prior Art Database: 2002-Jul-23
Document File: 1 page(s) / 40K

Publishing Venue

Motorola

Related People

Angel Bolanos: AUTHOR

Abstract

An antenna for a wearable electronic device such as a pager-watch is shown above. The antenna structure provides an in bezel approach for a 930 MHz wristwatch pager. This allows the watch to have replaceable straps and is less likely to have sensitivity variations. In addition, the antenna struc- ture is smaller than traditional antennas previously used on a wristwatch pager.

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MO-LA Technical Developments

ANTENNA FOR A WEARABLE ELECTRONIC DEVICE

by Angel Bolanos

LOOP ON BEZEL EXTERIOR

UPPER CONDUCTOR

LOWER CONDUCTOR

  An antenna for a wearable electronic device such as a pager-watch is shown above. The antenna structure provides an in bezel approach for a 930 MHz wristwatch pager. This allows the watch to have replaceable straps and is less likely to have sensitivity variations. In addition, the antenna struc- ture is smaller than traditional antennas previously used on a wristwatch pager.

  The antenna is fabricated in the shape of an arc which subtends an angle of 180", and is positioned around the periphery of the bezel and back cover of the watch case. The antenna can be screened onto the bezel and back cover of the watch case using a conductive ink, or can be fabricated from sheet metal and molded into the bezel and back cover of the watch case. By orienting the antenna at an angle of 45" to the axis of the wrist band as shown above, the antenna is more responsive to a circularly polar- ized signal.

0 Motorola. Inc. ,999 11 Januaq 1999

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