Abstract: A foldable portable wireless communication apparatus which ensures miniaturization of housing and good antenna characteristic has first casing including transmitter and/or operation section, and second housing including receiver and/or display section and rotatably linked with the first casing through hinge section provided on one end portion of the first housing on the front face side thereof. An antenna board is provided in area at back of the hinge section inside the first housing, and a circuit board having a radio-frequency circuit section mounted thereon is provided in area not overlapping the hinge section inside the first housing. A connection conductor connecting the antenna board and the high frequency wave input/output point of the radio-frequency circuit section is configured into a monopole antenna by setting the direction of extension of the connection conductor in the lengthwise direction of the first housing in the vicinity of the high frequency wave input/output point.

Abstract: A dual-band antenna with little limitation on the mounting space, which allows two antenna elements coping with different frequency bands to be laid out at a narrow space, and a portable wireless device having the same are provided. A band-like first antenna element, a sheet-like dielectric element, and a band-like second antenna element are fitted in a groove of a support member. The end portion of the second antenna element overlaps with the end portion of the first antenna element, and the dielectric element is sandwiched therebetween. The sandwiched dielectric element constitutes a capacitor, and first antenna element, the capacitor and the second antenna element are connected in series. The other end portion of the second antenna element is connected to a circuit in a bottom casing, and power is supplied through the other end portion thereof.

Abstract: A mobile radio communication device has an antenna, a circuit board to which the antenna is connected and on which a plurality of electronic elements are mounted, an inner casing formed of resin and housing the circuit board, and an outer casing of resin covering the inner casing. The antenna is located on that portion on an outer face of the inner casing which is covered by the outer casing, and the antenna is disposed to penetrate into the inside of the inner casing through a hole formed on the inner casing, and the feeding end of the antenna is connected to the circuit board. This allows the antenna to be spaced apart from other electronic elements on the circuit board in the lower body without protruding the antenna outside, to achieve a sufficient antenna property by elimination of effects from other electronic elements.

Abstract: A mobile radio communication device has an antenna, a circuit board to which the antenna is connected and on which a plurality of electronic elements are mounted, an inner casing formed of resin and housing the circuit board, and an outer casing of resin covering the inner casing. The antenna is located on that portion on an outer face of the inner casing which is covered by the outer casing, and the antenna is disposed to penetrate into the inside of the inner casing through a hole formed on the inner casing, and the feeding end of the antenna is connected to the circuit board. This allows the antenna to be spaced apart from other electronic elements on the circuit board in the lower body without protruding the antenna outside, to achieve a sufficient antenna property by elimination of effects from other electronic elements.

Abstract: A dual-band antenna with little limitation on the mounting space, which allows two antenna elements coping with different frequency bands to be laid out at a narrow space, and a portable wireless device having the same are provided. A band-like first antenna element, a sheet-like dielectric element, and a band-like second antenna element are fitted in a groove of a support member. The end portion of the second antenna element overlaps with the end portion of the first antenna element, and the dielectric element is sandwiched therebetween. The sandwiched dielectric element constitutes a capacitor, and first antenna element, the capacitor and the second antenna element are connected in series. The other end portion of the second antenna element is connected to a circuit in a bottom casing, and power is supplied through the other end portion thereof.

Abstract: A foldable portable wireless communication apparatus which ensures miniaturization of housing and good antenna characteristic has first casing including transmitter and/or operation section, and second housing including receiver and/or display section and rotatably linked with the first casing through hinge section provided on one end portion of the first housing on the front face side thereof. An antenna board is provided in area at back of the hinge section inside the first housing, and a circuit board having a radio-frequency circuit section mounted thereon is provided in area not overlapping the hinge section inside the first housing. A connection conductor connecting the antenna board and the high frequency wave input/output point of the radio-frequency circuit section is configured into a monopole antenna by setting the direction of extension of the connection conductor in the lengthwise direction of the first housing in the vicinity of the high frequency wave input/output point.

Abstract: A mobile phone is provided with an upper housing coupled to a lower housing with free opening/closing via a hinge. Aboard housing recess is formed on the front face of a middle casing of the lower housing and an antenna housing recess is formed on the back face. The board housing recess houses a circuit board and the antenna housing recess houses an antenna. The board housing recess is covered with a front casing and the antenna housing recess is covered with a back casing. The edge of a keypad also serving as a watertight packing is inserted between the middle casing and front casing along the edge of the board housing recess. The edge of a watertight packing is inserted between the middle casing and back casing along the edge of the antenna housing recess.