Antenna device
AssigneePegatron Corporation
InventorsChia-Hsing HSIEH, An-Shyi LIU
Life of this patent
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Abstract
An antenna device includes antenna units, transmission lines and switching circuits. The antenna units are used to be operated in a directional mode or an omni-directional mode. The transmission lines are coupled to the antenna units. The switching circuits are coupled to the respective transmission lines, and are used for selectively connecting the transmission lines according to control signals. At least one transmission line is disconnected when the antenna units are operated in the directional mode. All the transmission lines are connected when the antenna units are operated in the omni-directional mode.
Claims20
An antenna device, comprising:
- a plurality of antenna units for operating in a directional mode or an omni-directional mode;
- a plurality of transmission lines coupled to the antenna units and a signal feed point;
- and
- a plurality of switching circuits coupled to the respective transmission lines and used for selectively connecting the transmission lines according to a plurality of control signals from a control circuit in order to transmit a RF signal from the signal feed point to the antenna units corresponding to the connected transmission lines, the switching circuits disconnect at least one of the transmission lines according to the control signals when the antenna units are operated in the directional mode;
- and the switching circuits connect the transmission lines according to the control signals when the antenna units are operated in the omni-directional mode.
An antenna device, comprising:
- a plurality of antenna units coupled to a signal feed point for operating in a directional mode or an omni-directional mode;
- and
- a plurality of switches coupled to the respective antenna units and used for selectively connecting the antenna units according to a plurality of control signals from a control circuit, in order to transmit a RF signal from the signal feed point to the antenna units,
- a plurality of impedance units coupled to the respective antenna units and coupled to the respective switches in series or in parallel to block mutual interference among the control signals and the RF signal,
- wherein the switches disconnect at least one of the antenna units according to the control signals when the antenna units are operated in the directional mode, and the switches connect the antenna units according to the control signals when the antenna units are operated in the omni-directional mode.
Dependencies are inferred from the claim text.