Murata Manufacturing Co., Ltd.

Yasuo Tanbo

Masahiro Izawa

Shota Taki

An antenna module () includes a ground electrode () in which a slit () is formed in such a manner as to form an opening along a perimeter of the ground electrode, a first antenna () and a second antenna (A) arranged in or on the ground electrode (), and a coupling reducing electrode () connected to the ground electrode () within the slit (). The slit () is formed on a path leading from the first antenna () to the second antenna (A) along the perimeter of the ground electrode. The coupling reducing electrode () includes a first conductor () having a length corresponding to a first frequency and a second conductor () having a length corresponding to a second frequency, which is higher than the first frequency.

Antenna module and communication device incorporating the same

An antenna unit includes a feed point, a first antenna conductor extending from the feed point and having a width that expands as a distance from the feed point increases, a second antenna conductor facing a top end edge of the first antenna conductor with a gap formed therebetween, a first connection part connecting the top end edge of the first antenna conductor and the second antenna conductor via a capacitor, and a second connection part connecting the top end edge of the first antenna conductor and the second antenna conductor via an inductor or a zero-ohm resistor. A first connection point between the first connection part and the first antenna conductor is closer to a center of the top end edge of the first antenna conductor compared with a second connection point between the second connection part and the first antenna conductor.

Antenna unit and wireless communication device including the same

A conductor pattern of an antenna device is provided in a notch and includes a common conductor, a first conductor, and a second conductor. A power supply unit is disposed at a connection portion between a conductor plate and the conductor pattern. Each of the first conductor and the second conductor is connected to the power supply unit with the common conductor interposed therebetween. The power supply unit is positioned at a position at which a distance to an opening end is shorter than a distance to a closed end at a side end. A first partial conductor of the first conductor is positioned between the second conductor and a side end. A length of the first conductor in a direction along the side end is longer than a length of the second conductor in the direction along the side end.

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Kyoto, Japan

Yasuo Tanbo