Telecommunications – Transmitter and receiver at same station – Having particular housing or support of a transceiver
Patent
1997-09-10
2000-10-17
Vo, Nguyen
Telecommunications
Transmitter and receiver at same station
Having particular housing or support of a transceiver
455345, 455346, 343702, H04B 138, H04B 106, H01Q 124
Patent
active
061344214
ABSTRACT:
A cradle can be mounted in a vehicle, or other suitable location, for supporting a wireless dual-frequency telephone that includes an antenna. The cradle includes a plastic housing and a ground plane disposed in the housing. A trough-shaped feed coupler element is electrically connected to matching circuits and an input/output connector. A first parasitic coupler element is aligned with the feed coupler element, and connected to the ground plane, and electromagnetically couples signals having a first frequency to and from the antenna. Together, the elements hold the antenna of the telephone. Also, a second parasitic element is disposed adjacent the feed coupler element for electromagnetically coupling signals to and from the antenna, that have a second frequency. If desired, the ground plane is established by a first conductive board and a second conductive board elevated above the first board.
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Lee Chung-Yi
Santos Theodore R.
Appiah Charles N.
Hom Raymond B.
Ogord Gregory
Qualcomm Incorporated
Vo Nguyen
LandOfFree
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