Patent ID: 8659481
Filing Date: 2014-02-25
Classification: H01P,H01Q

Abstract:
1. An internal printed antenna comprising: an dielectric substrate having a first surface and a second surface corresponding to the first surface; a ground plane arranged at the first surface for signal ground; a metal loop radiating portion that is on the first surface and is connected to an edge at one side of the ground surface; the metal loop radiating portion having a plurality of bends and a gap area is formed between adjacent bends; the gap area is disposed with at least one short circuit parts; and a microstrip feed line that is corresponding to the metal loop radiating portion and is disposed on the second surface; one end of the microstrip feed line is a signal feeding end of the antenna while the other end thereof is a coupling end having a rectangular main body and two extending parts connected to the rectangular main body; the rectangular main body includes a vertical first slot having an opening at one end, a horizontal slot connected to the first slot, and a vertical second slot having one end connected to the horizontal slot; the two extending parts are respectively connected to left and right sides of the rectangular main body while the extending part connected to the right side of the rectangular main body is a rectangular first extending part and the extending part connected to the left side of the rectangular main body is a L-shaped second extending part.