Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Matsushita Electric Industrial Co., Ltd.

Kenji Nishikawa

Shingo Sumi

Toshiharu Ishimura

Yasunori Komukai

Kazuya Nakano

Yukinari Takahashi

Yu Ono

Kazuya Tani

Yasuharu Matsuoka

Ryo Yonezawa

Kazuhiro Shiraga

Takahiro Ochi

Masashi Koshi

Shintarou Tanaka

Keita Endo

Hiroaki Ohmori

Kazuki Zusho

Hiroyuki Takaoka

Katsuya Yamamoto

Hiroki Yosho

Tomohiro Uchida

An antenna unit includes a plate-shaped dielectric substrate, as well as an antenna element and a stub element. The dielectric substrate has a first edge extending along a longitudinal direction of the dielectric substrate and a second edge extending along the longitudinal direction of the dielectric substrate, and the second edge is opposite to the first edge. The antenna element is disposed along the longitudinal direction of the dielectric substrate. The Antenna element has a first end containing a feedpoint and a second end containing an open end. The stub element is disposed between a section of the antenna element having a predetermined length containing the first end of the antenna element and the first edge of the dielectric substrate along the longitudinal direction of the dielectric substrate. The stub element has a first end connected to a reference potential and a second end containing an open end.

Antenna unit and electronic device

A multiband compatible antenna that resonates at a first frequency and a second frequency includes: a planar conductor including a feeding portion to which a signal is supplied, a grounding portion, and a slit between the feeding portion and grounding portion. The slit includes a first slit portion extending in a first direction and a second slit portion extending in a second direction intersecting the first direction from an end of the first slit portion. The first slit portion is disposed closer to one edge than a center of the planar conductor in the second direction, and the feeding portion is disposed to a side of the first slit portion closer to the one edge. The planar conductor includes a first element portion and a second frequency portion that resonate at the first frequency and the second frequency, respectively. The second slit portion is disposed in the first element portion.

Multiband compatible antenna and radio communication device

An electronic apparatus includes: a first antenna board having a plate shape and extending with a first length; a second antenna board having a plate shape and extending with a second length; and a rectangular parallelepiped upper casing for accommodating the first antenna board and the second antenna board. The first antenna board and the second antenna board are arranged such that a longitudinal direction of the first antenna board and a longitudinal direction of the second antenna board are parallel to one side of one main surface of the rectangular parallelepiped upper casing. The first antenna board and the second antenna board are arranged parallel to each other.

Electronic apparatus

An antenna unit includes a conductive ground plate, a first antenna element, and a second antenna element. The first antenna element includes a first end connected to a feedpoint and a second end containing an open end. A part of the first antenna element is disposed along the conductive ground plate. The second antenna element branches off the first antenna element at a branch point on the first antenna element. The second antenna element is disposed between the part of the first antenna element disposed along the conductive ground plate and the conductive ground plate. The first antenna element resonates at a first frequency. The second antenna element and a segment between the first end and the branch point of the first antenna element resonate at a second frequency that is higher than the first frequency.

A first antenna element includes a first end connected to a feedpoint, a second end connected to a connection point on a ground conductor, and a fold disposed between the first and the second ends. A part of a segment between the first end and the fold of the first antenna element is disposed along the ground conductor. A second antenna element branches off the first antenna element. The second antenna element is disposed between the part of the first antenna element disposed along the ground conductor and the ground conductor. The segment between the first end and the fold of the first antenna element resonates at a first frequency. The second antenna element and a segment between the first end and a branch point of the first antenna element resonate at a second frequency that is higher than the first frequency.

The electronic device includes a case, an antenna element, a heat source, a heat dissipation member, a heat conduction member, a cooling fan, an exhaust port, and an exhaust duct. The case has a pair of main surfaces and side surfaces. The antenna element is used to perform wireless communication. The heat dissipation member exchanges heat with a cooling wind. The heat conduction member conducts heat of the heat source to the heat dissipation member. The cooling fan generates the cooling wind to be blown to the heat dissipation member. The exhaust port is an exhaust port from which the cooling wind is discharged to the outside. The exhaust duct guides the cooling wind to the exhaust port. The exhaust port is disposed on one of the side surfaces, and the antenna element and the exhaust duct are disposed to overlap each other at least partially in the thickness direction.

Electronic device

Tablet PC () includes communication units (), antenna terminal (T) used to receive one of first and second signals, antenna terminal (T) used to receive another one of the first and second signals, terminal switch () configured to perform switching between a first coupling state in which communication unit () and terminal (T) are coupled, and communication unit () and terminal (T) are coupled, and a second coupling state in which communication unit () and terminal (T) are coupled, and communication unit () and terminal (T) are coupled, and controller () configured to control terminal switch () so as to switch to the first coupling state when terminal (T) receives the first signal, and terminal (T) receives the second signal, and to control terminal switch () so as to switch to the second coupling state when terminal (T) receives the second signal, and terminal (T) receives the first signal.

Radio communication device and radio communication system

An information processing device of the present disclosure includes a processor, a power source that supplies power, a proximity sensor that detects approach of an object, and an antenna that outputs an electromagnetic wave. The processor sets a maximum power of the electromagnetic wave from the antenna to a first value after the power source starts supplying the power, and then sets the maximum power of the electromagnetic wave from the antenna to a second value greater than the first value when the proximity sensor no longer detects approach of an object that has once been detected by the proximity sensor.

Information processing device

A first base radiation element has a first end connected to the feed point, and a second end. A second base radiation element has a first end connected to the ground point, and a second end. The first and second base radiation elements respectively include portions extending in a first direction and close to each other. The first base radiation element is branched into first and second branch radiation elements at a first branch point located at the second end of the first base radiation element, the first branch radiation element includes a portion extending in the first direction, and the second branch radiation element includes a portion extending in a second direction opposite to the first direction. The end of the second base radiation element is connected to a connecting point different from the first branch point of the first branch radiation element.

Small antenna apparatus operable in multiple frequency bands

A GPS antenna is provided with a reflective conductor portion. Thereby, an electromagnetic wave radiated from an antenna conductor portion in a predetermined direction can be grounded electrically, and thus radiation of the electromagnetic wave in a direction (arbitrary direction) opposite to the predetermined direction can be enhanced. As a result, the directivity of the electromagnetic wave in the arbitrary direction can be enhanced to improve the positioning accuracy.

Antenna unit, and electronic apparatus including the same

Electronic equipment is provided with a boardthat includes an antenna circuit for transmitting and receiving a wireless signal and a ground patternfor electrically grounding the antenna circuit, and a second casingformed integrally with an antenna holding portionfor holding the board. At least the antenna holding portionin the second casingis formed of a conductor. A clipsandwiches the antenna holding portionand the boardin a state where the ground patternand the antenna holding portionare in contact with each other.

Electronic equipment capable of wireless communication

An information processing unit is configured so that in a case where a display-rotating buttonoris operated by a user so as to select a second display mode, and where either a communication unitoris in an activated state and the user does not halt the action of the communication unitor, the display mode is shifted to a mode other than the second display mode. Thereby, it is possible to urge the user to change the posture of a main body

Information processing unit having communication function

A wireless communication device is arranged to be fixed to a main body of an information-processing apparatus. The wireless communication device includes an antenna, a matching unit coupled with the antenna, a high frequency circuit coupled with the matching unit, and a case for accommodating the matching unit and the high frequency circuit. The matching unit includes a ground part having a screw acceptor capable of contacting a screw. The main body of the information-processing apparatus includes a housing made of electrically-conductive material, such as metal. A first screw contacts the screw acceptor, fixes the case to the housing of the main body, and electrically connects the ground part of the matching unit with the housing. A second screw fixes the case to the housing of the main body. This wireless communication device provides the antenna with excellent characteristics.

Growing community of inventors

Hyogo, Japan

Kenji Nishikawa