Ceramic multilayer helical antenna for portable radio or microwave communication apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Apr 4, 2000
Grant Date -
N/A
app pub date -
Jul 2, 1997
filing date -
Jul 2, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A small and durable antenna for use with radio and microwave communications is formed as a helical conductor contained in a multilayered non-ferrite ceramic chip. The dielectric constant of the ceramic is selected to match the antenna to its operating frequency, which may be in the range of 0.5 to 10.0 Gigahertz. A process for making such antennas is also disclosed. The antenna may be used in portable terminals and other devices requiring small, durable and inexpensive antennae.
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