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US 2010/0073105 A1Published application
Phase shifter
OwnerDau-Chyrh CHANG, Bing-Hao Zeng +1inventors
InventorsDau-Chyrh CHANG, Bing-Hao Zeng, Ji-Chyun Liu
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Abstract
A phase shifter including a substrate, a plurality of first transmission lines, a plurality of second transmission lines, and a coupling portion is described. After the phase shifter feeds a signal into the first transmission lines, the first transmission lines assign the signal to the second transmission lines. Moreover, the coupling portion moves to change an area of the second transmission lines shielded by the coupling portion, so as to change the phase of the signal transferred by each of the second transmission lines.
Claims14
A phase shifter, comprising:
- a substrate, formed with a plurality of first transmission lines and an input portion, wherein the first transmission lines are respectively coupled to the input portion, for transmitting a signal received by the input portion;
- a plurality of second transmission lines, formed on the substrate, and each having a first end electrically connected to one of the first transmission lines correspondingly;
- a coupling portion, disposed corresponding to and moving relative to the second transmission lines to change an area of the second transmission lines shielded by the coupling portion, used for coupling the signal received by each of the second transmission lines, so as to change the phase of the signal transmitted by each of the second transmission lines;
- and
- a plurality of output portions, each electrically connected to a second end of each of the second transmission lines, for receiving the signal output by the corresponding second transmission line.
2 more elements
Dependencies are inferred from the claim text.