Atch horn antenna of dual frequency
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United States of America Patent
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-
Aug 17, 2004
Issued Date -
N/A
app pub date -
Mar 6, 2003
filing date -
Mar 6, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention is to provide a patch horn antenna of dual frequency formed on a printed circuit board of a wireless electronic product, in which the horn antenna is formed on one side of the print circuit board, a first patch line is formed on the other side of the printed circuit board as a feed transmission line thereof by means of signal wave coupling, and a second patch line being extended from an opening of the horn antenna at one oblique side toward the other oblique side of the opening for effectively controlling the ranges of the frequency bands to obtain a good match between high and low frequency bands via adjusting the size of the second patch line the degree of the angle between two oblique sides of the opening or the coupling area of the first patch line.
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