Murata Manufacturing Co., Ltd.

Yoshikazu Yagi

Hiroaki Tanaka

Yutaka Sasaki

Osamu Chikagawa

Nobumitsu Amachi

Tsutomu Ieki

Yutaka Ida

Kazushige Sato

Noboru Morioka

Akihiro Hara

A high-frequency component includes a wiring substrate, a component mounted on an upper surface of the wiring substrate, a columnar member formed of a conductive resin and standing on the upper surface of the wiring substrate in a state of a lower end portion of the columnar member being fixed to the upper surface of the wiring substrate, and a shield case covering the component and the columnar member. The shield case has a lid plate disposed so as to face the upper surface of the wiring substrate and a side plate extending from an edge of the lid plate toward the upper surface of the wiring substrate, and an upper end portion of the columnar member is fixed to each of four corner portions of the lid plate, when viewed in a direction perpendicular to the upper surface of the wiring substrate.

High-frequency component provided with a shield case

A microstrip line includes a strip conductor, a line electrode, and edge electrodes provided at the edges on both sides of the line electrode. The construction of the microstrip line greatly reduces the edge effect of the line electrode and decreases the conductor loss of the line electrode.

Microstrip line having a line electrode with integral edge electrodes

In four microstriplines disposed close such that they are coupled with each other, the left-hand end of the third microstripline serves as an input, the left-hand ends of the first and second microstriplines and the right-hand ends of the first and fourth microstriplines serve as outputs, and the right-hand end of the second microstripline and the left-hand end of the fourth microstripline are grounded.

Four-phase phase converter

Growing community of inventors

Kyoto, Japan

Yoshikazu Yagi