| CPC H01Q 1/2275 (2013.01) [H01Q 1/36 (2013.01); H05K 1/16 (2013.01); H05K 2201/10098 (2013.01)] | 8 Claims |
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1. A wireless dongle, comprising:
a circuit board having a first front edge, a first rear edge opposite to the first front edge, a first lateral edge, and a second lateral edge opposite to the first lateral edge, the circuit board having a first surface, and a second surface opposite to the first surface;
a connector disposed to a middle of a front of the circuit board, and a front of the connector projecting beyond a middle of the first front edge of the circuit board;
a wireless module disposed to a middle and one side of the first surface of the circuit board which is adjacent to the first lateral edge, the wireless module being disposed to a middle and one side of the second surface of the circuit board which is adjacent to the first lateral edge of the circuit board, the wireless module being electrically connected to the connector; and
a printed antenna disposed at the other side of the first surface and the other side of the second surface of the circuit board which are adjacent to the second lateral edge of the circuit board, the wireless module being electrically connected between the connector and the printed antenna, the printed antenna being arranged away from the connector, the printed antenna having:
a through hole penetrating through the first surface, and the second surface of the circuit board;
a feed-in section disposed at the first surface of the circuit board, the feed-in section being positioned close to the first rear edge and the second lateral edge of the circuit board, the feed-in section being connected to a lateral rear corner of the wireless module of the first surface of the circuit board which is adjacent to the printed antenna;
a first radiation section disposed at the first surface of the circuit board, the first radiation section being straightly extended sideward to the through hole from the feed-in section, then being straightly extended frontward and being extended close to the first front edge of the circuit board, later being straightly extended sideward and close to the second lateral edge of the circuit board and being straightly extended rearward and close to the first rear edge of the circuit board, and being finally slantwise arched rearward and opposite to the second lateral edge of the circuit board, an extending path of a front portion of the first radiation section forming in an inverted U shape;
a second radiation section disposed at the second surface of the circuit board, the second radiation section being straightly extended frontward and close to the first front edge of the circuit board, then being straightly extended sideward and opposite to the second lateral edge of the circuit board from the through hole, an extending path of the second radiation section forming in an inverted L shape;
a grounding section disposed at the second surface of the circuit board, the grounding section being disposed at a tail side of the second radiation section, the grounding section being close to the first front edge of the circuit board, the grounding section being connected to a lateral front corner of the wireless module of the second surface of the circuit board which is adjacent to the printed antenna; and
the through hole being electrically connected to the first radiation section and the second radiation section, the through hole being disposed at a lateral rear position of the circuit board which is adjacent to the first rear edge and the second lateral edge of the circuit board;
wherein the first radiation section keeps a first clearance from the first front edge of circuit board, the first radiation section keeps the first clearance from the first rear edge of the circuit board, the first radiation section keeps the first clearance from the second lateral edge of the circuit board.
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