Multiband, single feed antenna
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United States of America Patent
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Jan 8, 2002
Issued Date -
N/A
app pub date -
Nov 9, 2000
filing date -
Nov 9, 2000
priority date (Note) -
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Abstract
A multiband antenna operates in at least a first frequency band and a second frequency band, a higher frequency band. A dipole has a first conductive leg and a second conductive leg and may be directly fed between the first and second legs. At least a portion of the first leg of the dipole has a meander configuration. The first leg has an electrical length of about one-quarter wavelength, or an odd multiple thereof, in the first frequency band and the second leg has an electrical length of about one-quarter wavelength, or an odd multiple thereof, or more in the first frequency band. A non-driven parasitically-excited conductive element is closely spaced to the first dipole leg and is electrically connected to the second dipole leg. The parasitic element has an electrical length of about one-quarter wavelength, or an odd multiple thereof, in the second frequency band.
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