Patent application number | Description | Published |
20100295740 | ANTENNA DEVICE AND WIRELESS COMMUNICATION DEVICE - An antenna device for use in a wireless communication device includes: a linear antenna element; a feeding portion including first and second feed terminals arranged apart face-to-face; a linear branch element which branches off from the linear antenna element at an intermediate position of the linear antenna element; and a ground conductor connected to an end of the linear branch element. The first feed terminal is connected to an end of the linear antenna element, and the second feed terminal is connected to a power supply unit. Alternatively, the antenna device may be provided with a capacitor which connects an end of the linear antenna element and a connection line connected to the power supply unit. | 11-25-2010 |
20110140973 | ANTENNA APPARATUS AND RADIO TERMINAL APPARATUS - An antenna apparatus including: a first and second antenna elements which transmit or receive radio signal; a ground pattern; and a wiring pattern which is provided on a line segment connecting the first and second antenna elements, and directly connected to the ground pattern, wherein a circumventing path is formed by the wiring pattern and a part of the ground pattern. | 06-16-2011 |
20120115336 | SLIDE-TYPE WIRELESS TERMINAL APPARATUS - A slide-type wireless terminal apparatus includes a first casing and a second casing slidable relative to the first casing. The wireless terminal apparatus includes a first circuit board which is provided in the first casing, an antenna which is provided in the first casing, a second circuit board which is provided in the second casing, a sliding member which is disposed between the first circuit board and the second circuit board, the sliding member including a portion which faces the antenna, the sliding member having electrical conductivity and being electrically connected to the first circuit board, and a guide member which is provided in the second casing, the guide member being for guiding the sliding member such that the sliding member slides relative to the guiding member. | 05-10-2012 |
20120119963 | RADIO APPARATUS AND ANTENNA DEVICE - There is provided a radio apparatus which includes an antenna device and a housing to which the antenna device is attached. The antenna device includes a substrate includes an electrically conductive layer with a slit. The slit is formed at an end of the electrically conductive layer so that the slit includes an opening end. The antenna element is electrically coupled with the electrically conductive layer across the opening end via a matching circuit, and receives an electric power through one end of the antenna element. | 05-17-2012 |
20120287010 | COMMUNICATION APPARATUS - A communication apparatus includes: a wiring group to couple wiring on a first board to wiring on a second board; antenna wiring including one end coupled to a feeding unit on the first board and the other end coupled to one end of a capacitor, the other end of the capacitor being coupled to a ground conductor of the second board; and ground conductor wiring for an antenna, disposed between the antenna wiring and the wiring group, including one end coupled to a ground conductor of the first board and the other end coupled to the ground conductor of the second board. | 11-15-2012 |
20130021210 | WIRELESS COMMUNICATION APPARATUS - A wireless communication apparatus performs a communication using high-frequency wave having a wavelength of λ. The apparatus includes a circuit board including a feeder point and a ground, an antenna element connected to the feeder point, and a wiring element including a first end portion and a second end portion different from the first end portion, the first end portion being connected to one of the feeder point and the antenna element, the second end portion being connected to the ground, wherein the antenna element has a length of λ/4, and the wiring element has a length of 3λ/4. | 01-24-2013 |
20130063313 | ANTENNA DEVICE AND MOBILE PHONE - There is provided an antenna device that includes a substrate, a slot provided in the substrate so that the slot includes a cut opening that is close to an edge of the substrate and the slot includes a crooked portion, a conductor section configured to include a slit in an area of the substrate, the area being sandwiched by the slot in the crooked portion, and an antenna that is placed close to the conductor section and is side by side with a surface of the substrate. | 03-14-2013 |
20130244596 | DATA COMMUNICATION TERMINAL APPARATUS - A data communication terminal apparatus is disclosed that includes a printed circuit board, a ground plane formed in the printed circuit board, a connector disposed on an end portion of the printed circuit board, and an antenna configured to have a feeding portion at one end and another end, the other end being connected to the ground plane via a capacitor between the feeding portion and the connector, the antenna forming a loop with the ground plane. | 09-19-2013 |
20140094230 | PORTABLE COMMUNICATION APPARATUS AND ANTENNA SWITCHING METHOD - There is provided a portable communication apparatus which includes a main antenna including a first element and a second element to be capable of being resonant at a first and a third frequencies, respectively, the third frequency being one between the first frequency and a second frequency higher than the first frequency, a switch provided between the main antenna and a high-frequency circuit, a capacitor disposed in parallel to the switch, the capacitor being connected between the main antenna and the high-frequency circuit, and a control circuit configured to control the switch to turn on and off such that when the switch is in an ON state, the first element is resonant at the first frequency, while when the switch is in an OFF state, the main antenna is coupled to the high-frequency circuit via the capacitor, and the second element is resonant at the second frequency. | 04-03-2014 |