Hitachi, Ltd.

Hitachi Video and Information System, Inc.

Hitachi Denshi Kabushiki Kaisha

Takatoshi Akagi

Mitsutaka Hikita

Nobuhiko Shibagaki

Toyoji Tabuchi

Atsushi Sumioka

Tomomi Matsumoto

Satoshi Wakamori

A high frequency module is disclosed which comprises a high frequency device in a package, a circuit formed on a flexible substrate in the package, the circuit, the high frequency device and input/output terminals of the package being connected electrically.

High frequency module including a flexible substrate

In a high frequency circuit device, inductive circuit elements constituting a matching circuit are constructed of so-called helical coils having fine metal wires wound in a hollow solenoid form, which are disposed inside a package in which a high frequency circuit element such as a surface acoustic wave element or the like is mounted. The high frequency circuit device may be utilized in equipment such as wireless communication equipment for reducing the size as well as providing good high frequency characteristics.

High frequency circuit device

Growing community of inventors

Kokubunji, Japan

Takatoshi Akagi