Patent ID: 8200302
Filing Date: 2012-06-12
Classification: H01Q,H04M

Abstract:
1. A mobile wireless communication apparatus comprising: a first conductor section; a second conductor section arranged in parallel with and spaced from the first conductor section so as to have a predetermined distance there between, the second conductor section having a different size from that of the first conductor section; a short-circuit conductor section electrically connecting one edge of the first conductor section to one edge of the second conductor section that is facing the one edge of the first conductor section; a ground conductor section spaced by a predetermined distance from the first conductor section; and a wireless communication circuit, wherein a first feeding point on the first conductor section is connected to the wireless communication circuit via a first power supply section provided between the first conductor section and the ground conductor section, so that the first conductor section and the ground conductor section operate as a first antenna element, a second feeding point on the second conductor section is connected to the wireless communication circuit via a second power supply section provided between the first conductor section and the second conductor section, so that the first conductor section, the second conductor section, and the short-circuit conductor section operate as a second antenna element, and a sum of: a length of a path passing from the one edge of the second conductor section which is connected to the short-circuit conductor section, through the second feeding point, to an open edge of the second conductor section which is opposed to the one edge of the second conductor section; and a length of the short-circuit conductor section, between the first conductor section and the second conductor section, is a ¼ length of a wavelength of a communication signal so that the second antenna element operates as a ¼ wavelength one-end-short-circuited patch antenna.