Details
| Original language | English |
|---|---|
| Patent number | US2001054979 |
| IPC | H01Q 13/ 08 A I |
| Priority date | 23 Jun 2000 |
| Publication status | Published - 27 Dec 2001 |
Abstract
A flat antenna arrangement (plate antenna arrangement, patch antenna arrangement) with an earth plate and a radiator that is disposed at a distance essentially parallel to the earth plate and is conductively connected to the latter by one of its end regions, wherein, at a first (lower) resonant frequency of the antenna arrangement, a voltage minimum is present at the connection of the radiator to the earth plate and in the region of the other end (unsupported end) of the radiator a first voltage maximum is present, is characterized in that there is disposed between the radiator (3) and the earth plate (2) near the unsupported end of the radiator (3) a settable switch element (11) that is designed in such a way that it is capable of making a connection having a low impedance, and in that the point at which the switch element is connected to the radiator (3) is disposed in such a way that, with the switch element (11) set to conduct, the radiator (3) has a desired second resonant frequency that is higher than the first resonant frequency. It is advantageous that the entire or almost the entire radiator radiates in the two frequency ranges.
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Patent No.: US2001054979. Dec 27, 2001.
Research output: Patent
}
TY - PAT
T1 - Antenna arrangement for mobile radiotelephones
AU - Bahr, Achim
AU - Manteuffel, Dirk
AU - Baro, Jose Marie
PY - 2001/12/27
Y1 - 2001/12/27
N2 - A flat antenna arrangement (plate antenna arrangement, patch antenna arrangement) with an earth plate and a radiator that is disposed at a distance essentially parallel to the earth plate and is conductively connected to the latter by one of its end regions, wherein, at a first (lower) resonant frequency of the antenna arrangement, a voltage minimum is present at the connection of the radiator to the earth plate and in the region of the other end (unsupported end) of the radiator a first voltage maximum is present, is characterized in that there is disposed between the radiator (3) and the earth plate (2) near the unsupported end of the radiator (3) a settable switch element (11) that is designed in such a way that it is capable of making a connection having a low impedance, and in that the point at which the switch element is connected to the radiator (3) is disposed in such a way that, with the switch element (11) set to conduct, the radiator (3) has a desired second resonant frequency that is higher than the first resonant frequency. It is advantageous that the entire or almost the entire radiator radiates in the two frequency ranges.
AB - A flat antenna arrangement (plate antenna arrangement, patch antenna arrangement) with an earth plate and a radiator that is disposed at a distance essentially parallel to the earth plate and is conductively connected to the latter by one of its end regions, wherein, at a first (lower) resonant frequency of the antenna arrangement, a voltage minimum is present at the connection of the radiator to the earth plate and in the region of the other end (unsupported end) of the radiator a first voltage maximum is present, is characterized in that there is disposed between the radiator (3) and the earth plate (2) near the unsupported end of the radiator (3) a settable switch element (11) that is designed in such a way that it is capable of making a connection having a low impedance, and in that the point at which the switch element is connected to the radiator (3) is disposed in such a way that, with the switch element (11) set to conduct, the radiator (3) has a desired second resonant frequency that is higher than the first resonant frequency. It is advantageous that the entire or almost the entire radiator radiates in the two frequency ranges.
M3 - Patent
M1 - US2001054979
ER -