Patent ID: 8200301

Claim:
A mobile wireless communication apparatus comprising: a first conductor section having a rectangular shape; a second conductor section having the same shape and the same size as the first conductor section, arranged in parallel with and spaced from the first conductor section so as to have a predetermined distance there between; three short-circuit conductor sections electrically connecting any three edges of the first conductor section with three edges of the second conductor section that are face-to-face with the any three edges 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 arranged 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 arranged between the first conductor section and the second conductor section, so that the first conductor section, the second conductor section and the three short-circuit conductor sections operate as a second antenna element, and a length of one side of the first or second conductor section, to which the three short-circuit conductor sections are not connected, is half of a wavelength of a communication signal so that the second antenna element operates as a half-wavelength slot antenna.