Abstract: An antenna device is disposed on a first, a second, and a third surfaces, and includes a first antenna disposed on the first and the third surfaces, a second antenna disposed on the second surface, and a ground line disposed on the first surface. The first antenna includes a first feedpoint disposed on the first surface, a first element disposed on the first surface, and extending from the first feedpoint to the third surface, and a second element disposed on the third surface, and extending in a direction along the first surface from an end of the first element. The second antenna includes a second feedpoint disposed in a manner separated from the first feedpoint in a direction parallel with the first and the second surfaces, and an antenna element extending from the second feedpoint. The ground line includes a ground line element capacitively coupled to the first antenna.

Abstract: An antenna device includes: a feeding element having a feedpoint that a signal in a first frequency band and a signal in a second frequency band lower than the first frequency band are supplied to; a high-band element connected to the feeding element, the high-band element resonating with the signal in the first frequency band; a low-band element connected to the feeding element, the low-band element resonating with the signal in the second frequency band; an auxiliary element capacitively coupled to the low-band element at an open end of the low-band element; a ground member grounded; and a switch switching a conductive state and a non-conductive state between the ground member and the auxiliary element.

Abstract: Provided is a portable wireless device (100) including: a circuit board (130); an input unit wiring pattern (140) comprising a flexible substrate that is separate from the circuit board (130); and an antenna element (160) of which a power feed unit (162) is connected to the substrate edge (130a) of the circuit board (130). A vertical wiring unit (142) is wired perpendicularly to the antenna element (160). A first cutoff circuit (171) is installed between the vertical wiring unit (142) and a horizontal wiring unit (143), and cuts off the wiring at a high frequency. The horizontal wiring unit (143) is connected to the circuit board (130) with a connector (150) disposed in the vicinity of the power feed unit (162) therebetween.

Abstract: A portable wireless device that makes it possible to maintain any desired matching state and can suppress an increase in the loss accompanying matching if the impedance characteristic of an antenna changes with expansion/storage of the antenna, deformation of a housing, etc., is provided. Two channels of signal paths that can be selected by switch section 11, 15 are provided between an antenna 10 and a reception circuit 16; a first low noise amplifier 13 that can amplify a received high frequency signal is provided in one path and a second low noise amplifier 18 having an impedance characteristic different from the low noise amplifier 13 is provided in the other signal path. The form of the antenna 10 or the form of a housing is detected in a form change detection section 20 and the two channels of signal paths are automatically switched in a control section and two types of impedance matching states are used properly.

Abstract: Disclosed is a portable wireless device which can receive signals at a wideband with good sensitivity, and change a narrowband wherein signals are received with high sensitivity. In this device, a wireless unit (105) demodulates signals received by an antenna (101) or modulates signals to be transmitted by the antenna (101). Matching circuits (103-1 to 103-n) are connected between the antenna (101) and the wireless unit (105) and match impedance so that the impedance of the antenna (101) and the impedance of the wireless unit (105) have a complex conjugate relation. A plurality of these are respectively provided for a plurality of different frequency bands where matching is performed.

Abstract: Disclosed is a portable wireless terminal wherein deterioration in antenna performance when placed on a metal desk or other structure can be prevented without sacrificing designability and without increasing the number of components. In this terminal, a hinge part (103) functions as an antenna which resonates at a frequency of a first wireless system (150). A whip antenna (112) faces the surface of a first circuit board (104) that is opposite the surface faced by an input device (115), is disposed substantially parallel to the first circuit board (104), and resonates at a frequency of a second wireless system (160). A second contact spring (110) electrically connects a second wireless circuit (108) to the antenna element of a whip antenna (112) and is disposed perpendicularly to the first circuit board (104). A switch (113) grounds the whip antenna (112) and second contact spring (110) to the first circuit board (104) when the second wireless system (160) is not operating.

Abstract: A portable radio apparatus includes: a first circuit board disposed within a first housing; a second circuit board disposed within a second housing; a third housing disposed between the first housing and the second housing; a first hinge part rotatably coupling the first and third housings; an electrically conductive and hollow second hinge part rotatably coupling the second housing and the third housing; a connection cable inserted in the second hinge part and electrically connecting the first circuit board and the second circuit board; and an antenna element disposed within the third housing. The antenna element and the second hinge part are connected such that the second hinge part functions as a ground of the antenna element. The portable radio apparatus further includes an electrically conductive connection member electrically connecting the ground of the antenna element and a ground of the second circuit board.

Abstract: A mobile wireless apparatus wherein matching circuits can be independently designed, while the increase in the circuit scale can be suppressed and the cost can be reduced. In this apparatus, a filter (102) suppresses a frequency band (f2-f3) of signals received by an antenna element (101). A filter (105) suppresses a frequency band (f1) of the signals received by the antenna element (101). A wireless unit (104) acquires data that is obtained by demodulating the signals obtained by suppressing the frequency band (f2-f3) and superimposing the demodulated signals on the signals of the frequency band (f1). A wireless unit (107) acquires data that is obtained by demodulating the signals obtained by suppressing the frequency band (f1) and superimposing the demodulated signals on the signals of the frequency band (f2-f3). A matching circuit (103), which is connected between the filter (102) and the wireless unit (104), matches the impedances of the filter (102) and wireless unit (104).

Abstract: A wireless communication device is equipped with a first housing having a first circuit board; a second housing that is provided at one end of the first housing so as to freely open and close with respect to the first housing and that has a second circuit board and an audio input section; and a third housing that is provided at the other end of the first housing so as to be reclosably open with respect to the first housing and that has a third circuit board and an audio output section. A portion of the second housing overlaps a portion of the first housing while the second housing remains open with respect to the first housing. The first housing has a first conductive terminal disposed at a position on the first circuit board that overlaps a portion of the second housing while the second housing remains open with respect to the first housing.

Abstract: A portable wireless device that makes it possible to maintain any desired matching state and can suppress an increase in the loss accompanying matching if the impedance characteristic of an antenna changes with expansion/storage of the antenna, deformation of a housing, etc., is provided. Two channels of signal paths that can be selected by switch section 11, 15 are provided between an antenna 10 and a reception circuit 16; a first low noise amplifier 13 that can amplify a received high frequency signal is provided in one path and a second low noise amplifier 18 having an impedance characteristic different from the low noise amplifier 13 is provided in the other signal path. The form of the antenna 10 or the form of a housing is detected in a form change detection section 20 and the two channels of signal paths are automatically switched in a control section and two types of impedance matching states are used properly.

Abstract: A portable wireless device is provided that eliminates the need for an antenna protruding from an housing by including a first housing and a second housing operating as a dipole antenna thus ensuring portability and delivering a high antenna performance despite its compact, low-profile and lightweight design. The portable wireless device according to the invention includes a first housing 1; a second housing 2; and a sliding unit 21 for slidably coupling the first housing 1 and the second housing 2 to each other; wherein the first housing 1 is arranged a predetermined spacing apart from the second housing 2 and includes a power feeding unit 7 for feeding power: between the first housing 1 and the second housing 2 and wherein the first housing 1 and the second housing 2 operate as a dipole antenna. The portable wireless device does not include an antenna protruding from an housing. This ensures portability and delivers a high antenna performance despite its compact, low-profile and lightweight design.

Abstract: A portable wireless device is provided that eliminates the need for an antenna protruding from an housing by including a first housing and a second housing operating as a dipole antenna thus ensuring portability and delivering a high antenna performance despite its compact, low-profile and lightweight design. The portable wireless device according to the invention includes a first housing 1; a second housing 2; and a sliding unit 21 for slidably coupling the first housing 1 and the second housing 2 to each other; wherein the first housing 1 is arranged a predetermined spacing apart from the second housing 2 and includes a power feeding unit 7 for feeding power: between the first housing 1 and the second housing 2 and wherein the first housing 1 and the second housing 2 operate as a dipole antenna. The portable wireless device does not include an antenna protruding from an housing. This ensures portability and delivers a high antenna performance despite its compact, low-profile and lightweight design.