| CPC H01P 1/18 (2013.01) [F16H 1/227 (2013.01); H01P 1/184 (2013.01); H01Q 3/36 (2013.01)] | 17 Claims |

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1. A brush phase shifter, comprising:
an actuating member;
a gear assembly, the gear assembly comprising a driving gear, a transmission gear and a linkage gear, the driving gear being a bevel gear, the transmission gear comprising a bevel gear portion and a cylindrical gear portion, the bevel gear portion having a large end and a small end, the cylindrical gear portion being integrally formed at the large end of the bevel gear portion, the linkage gear being a cylindrical gear, the driving gear meshing with the bevel gear portion of the transmission gear, the cylindrical gear portion of the transmission gear meshing with the linkage gear;
at least one main printed circuit board; and
at least one brush member, the brush member being fixedly connected with the linkage gear such that the brush member is rotatably arranged on the main printed circuit board.
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