Kabushiki Kaisha Toshiba

Fujitsu Toshiba Mobile Communications Limited

Takashi Amano

Akihiro Tsujimura

Koichi Sato

Hiromichi Suzuki

Hiroyuki Hotta

Satoshi Mizoguchi

Norimichi Chiba

Hisao Iwasaki

Isao Ohba

Shinji Watanabe

Toshiro Hiraoka

Seiichi Suenaga

Yasuo Suzuki

Naoyuki Nakagawa

Tomoko Eguchi

Takashi Minemura

Masao Teshima

Hiroshi Shimasaki

Tatsuo Nitta

Tomiaki Ishihara

Toshiki Miyasaka

Tomokazu Yuasa

Toshiyuki Masaki

Naoto Ito

Mikio Hayashihara

Satoshi Arai

Manabu Ishibe

Hiroshi Horiguchi

Yukio Mori

An antenna device arranged around a printed circuit board is provided. The antenna device has an antenna element connected to a feeder circuit provided on the printed board. The antenna device has an isolating material provided between the antenna element and the substrate material. The isolating material is constituted by an insulating substrate material and a plurality of pieces of magnetic material provided on the substrate material. Adjacent ones of the pieces of the magnetic material are arranged separate from each other.

Radio apparatus and antenna device including magnetic material for isolation

According to an aspect of the invention, a portable terminal includes: a first audio input-output unit and a second audio input-output unit configured to receive audio when a mode is set as an input mode and output audio when the mode is set as an output mode; and a setting unit configured to set the respective modes of the first audio input-output unit and the second audio input-output unit.

Portable terminal

A wireless communication device includes: a case made of a first dielectric material; a cover made of a second dielectric material which covers an outer surface of the case; a wireless communication circuit which is housed in the case; an antenna element made of a conductive material and provided on the outer surface of the case between the case and the cover, the antenna element being electrically connected to the wireless communication circuit by a connection member that penetrates the case; and an adhesive layer which is disposed between the antenna element and the case to adhere the antenna element onto the case, the adhesive layer being made of a third dielectric material.

Wireless communication device and antenna

A magnetic member is interposed and arranged between an antenna element and a printed circuit board, and an air member or a dielectric member is interposed between the antenna element and the magnetic member. The magnetic member is constituted of a nanogranular structure in which magnetic nanoparticles with ferromagnetism are three-dimensionally dispersed and arranged in an insulating matrix substrate.

Antenna apparatus

An antenna element made of an electrically conductive material pattern is printed and formed on a face of a casing made of an electrically nonconductive material having a circuit board housed therein, and the antenna element and the circuit board are electrically connected to each other by a connecting element.

Mobile communication terminal

A wireless communication device includes: a case that includes a dielectric member made of a first dielectric material, the dielectric member being coated with a coating layer made of a second dielectric material; a wireless communication circuit that is housed in the case; an antenna element that is electrically connected to the wireless communication circuit, the antenna element being made of a conductive material and provided on a surface of the dielectric member; and an adhesive layer that is disposed between the antenna element and the dielectric member to adhere the antenna element onto the dielectric member, the adhesive layer being made of a third dielectric material.

An antenna device includes a printed circuit board and an antenna element. The printed circuit board has a face a portion of which is formed by a conductive layer overlaid with a magnetic material layer made of anisotropic magnetic material. The magnetic material layer is arranged in such a way that a hard magnetization axis of the anisotropic magnetic material is directed almost parallel to the face. The antenna element is arranged almost parallel to the printed circuit board on a side of the face. The antenna element is arranged in such a way that an antenna current distributed on the antenna element if the antenna element is excited is directed almost perpendicular to the hard magnetization axis.

Antenna device adapted for portable radio apparatus

An antenna device is provided. The antenna device includes an antenna element including a first portion and a second portion formed almost parallel to each other, and a plane-shaped piece of magnetic material provided between the first portion and the second portion, the magnetic material arranged almost parallel to the first portion and the second portion. A wireless mobile terminal is provided. The wireless mobile terminal includes a printed circuit board, an antenna element including a first portion and a second portion formed almost parallel to each other, the first portion and the second portion arranged almost parallel to the printed circuit board each, and a plane-shaped piece of magnetic material provided between the first portion and the second portion, the magnetic material arranged almost parallel to the printed circuit board, the magnetic material arranged almost parallel to the first portion and the second portion.

Antenna device and wireless mobile terminal provided with magnetic material

According to an aspect of the invention, a portable wireless apparatus comprises a first housing and a second housing. The first housing comprises a first board having a first feeding portion; and a first antenna element connected to the first feeding portion and provided on a side of a first surface of the first board. The second housing foldably connected to the first housing comprises a second board having a surface opposite to the first surface of the first board when the second hosing is unfolded with respect to the first housing. The second board comprises a second feeding portion. A second antenna element is connected to the second feeding portion and provided on a side of the surface of the second board.

Portable wireless apparatus

An antenna includes an antenna element, and a first magnetic body which is arranged at least a part of the antenna element and has positive magnetostrictive characteristics.

Antenna and radio terminal having antenna thereof

In an antenna device, a half wavelength dipole antenna is folded so as to form a forward path section, a folding section and a backward path section such that the backward path section is connected to the substrate at the ground terminal, and an electric power is supplied from the power supply source at the branching point, so as to configure a folded monopole antenna. Also, an additional antenna is folded similarly and connected to the monopole antenna such that the branching point and the power supply section are shared by the monopole antenna and the additional antenna.

Antenna device and mobile communication terminal equipped with antenna device

The invention provides a radio device in which multi-resonance promotion and impedance adjustment can be readily performed and a restriction in a mounting space can be dissolved, and an electronic apparatus having the same installed therein. Provision of a stub () having a large area and serving as a frequency matching portion as well in a folded monopole antenna () results in that a conductor area can be increased, and a resonance frequency can be shifted to lower frequencies. In addition, a frequency of a radio communication antenna can be readily adjusted because the resonance frequency is adjusted by cutting the stub ().

Radio device and electronic apparatus

A mobile communication terminal of a portable telephone is housed in a casing having a first surface. A receiver section of the portable telephone capable of generating a voice is arranged on the first surface. A two-wavelength loop antenna arranged on a plane substantially parallel to the first plane and formed of a looped line having a right section and a left section that are in symmetry with respect to an imaginary vertical symmetric line is housed in the casing. A power supply point for supplying an electric power to the loop antenna is arranged in the vicinity of the intersection between the symmetric line and the looped line.

Growing community of inventors

Soka, Japan

Takashi Amano