Kmw Inc

Jong-Kyu Park

Jae-Hong Kim

Byung-Chul Kim

Duk-Yong Kim

Gil-Ho Lee

Yon-Tae Kim

Kwang-Yeob Kim

Duk-yong Kim

Su-Hee Lee

Sun-Woong Park

A variable radio frequency band filter capable of varying the resonance frequency band comprises a housing having a support; a number of resonator rods arranged along the longitudinal direction of the housing; at least one tuning rod positioned on top of the resonator rods; a tuning support extending through the respective tuning rods along the longitudinal direction of the housing and adapted to slide on top of the respective resonator rods to vary the position of the tuning rods; and a frequency variation unit positioned on a lateral surface of the housing. The frequency variation unit being coupled to an end of the tuning support and adapted to vary the position of the tuning rods, as the tuning support is slid, according to the frequency band.

Variable radio frequency band filter

A connectors-integrated directional coupler is provided. The directional coupler includes a housing having a body, an input connector integrally extended from one end of the body, and an output connector integrally extended from the other end of the body. A main line connects the input connector to the output connector for delivering a signal. A coupling line induces the signal from the main line.

Directional coupler integrated with connectors

Growing community of inventors

Osan-si, South Korea

Jong-Kyu Park