Microstrip antenna for an identification appliance
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United States of America Patent
Stats
-
May 3, 2005
Grant Date -
Sep 11, 2003
app pub date -
Mar 5, 2002
filing date -
Mar 5, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An identification appliance, such as a wristband, bracelet, patch, headband, necklace, card, sticker, or other wearable appliance, has an improved patch or microstrip antenna. The microstrip antenna comprises a conductive patch layer, a conductive ground layer and a dielectric layer in between the conductive layers. The microstrip antenna is mounted to or disposed in the identification appliance, where preferably the ground layer is closest to the user and the patch layer is furthest from the user. Electronic circuits may be located in the dielectric layer, on a surface of a conductive layer, or on another part of the identification appliance. Connecting holes through the dielectric layer may allow circuits to be connected to a conductive layer or layers. This improved antenna resolves detuning and communication degradation problems.
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Family
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Cited Art Landscape
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