Tri-band antenna
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United States of America Patent
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May 25, 2004
Issued Date -
N/A
app pub date -
Aug 26, 2002
filing date -
Aug 26, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A tri-band antenna and method for forming the same are provided. The antenna comprises a meander line radiator, a tapered line radiator, a straight line radiator, and a dielectric layer. Each dielectric layer surface has an area of less than 1.0.times.10.sup.6 square mils (mils.sup.2). The meander line, tapered line, and straight line radiators are formed as microstrip structures overlying the dielectric layer surfaces. More specifically, the meander line radiator is formed on the dielectric top surface and is connected to the tapered line radiator on the dielectric bottom surface through a via. The straight line radiator is connected to the tapered line radiator output on the bottom surface, and is unterminated. In one aspect, the combination of the meander line radiator, tapered line radiator, and straight line radiator forms effective electrical lengths corresponding to the cellular frequency band, the GPS frequency band, and the PCS frequency band.
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