Patent ID: 8378902
Filing Date: 2013-02-19
Classification: H01Q

Abstract:
1. An antenna used in portable electronic devices, comprising: a first antenna unit shaped as a planar inverted-F antenna (PIFA); and a second antenna unit shaped as a loop antenna and connected to the first antenna unit; wherein the first antenna unit serves as a PIFA and receives/sends wireless signals at relatively higher frequencies upon reception of feed signals, the second antenna unit simultaneously serves as a loop antenna and receives/sends wireless signals at relatively lower frequencies upon reception of feed signals, and the first antenna unit can be coupled with the second antenna unit to regulate the working frequency band of the antenna; and wherein the first antenna unit includes a first radio member, the second antenna unit includes a second radio member, and the first radio member and the second radio member are both flat sheets and parallel to each other, the first radio member includes a first radio portion, a second radio portion, and a third radio portion, which are all longitudinal flat sheets; an end of the second radio portion perpendicularly connected to an end of the first radio portion, the third radio portion perpendicularly connected to another end of the second radio portion and parallel to the first radio portion; the second radio member includes a fourth radio portion, a fifth radio portion, and a sixth radio portion; the fourth radio portion including a longitudinal first section and a longitudinal second section, an end of the second section perpendicularly connected to an end of the first section; the fifth radio portion being a longitudinal flat sheet, an end of the fifth radio portion perpendicularly connected to another end of the second section; the sixth radio portion including a longitudinal third section and a longitudinal fourth section, an end of the third section perpendicularly connected to another end of the fifth radio portion, and the third section parallel to the second section; an end of the fourth section perpendicularly connected to another end of the third section; and wherein a projection of the first section formed on the plane of the first antenna unit and is positioned between and parallel to the first radio portion and the third radio portion.