DC BLOCKING DEVICE BY USING IMPEDANCE MATCHING

摘要

The present invention relates to a DC blocking device by using impedance matching. The DC blocking device comprises: a first strip line, which receives a signal and includes a first coupling section coupled to the signal-receiving section, and a first line; and a second strip line, which is arranged at a predetermined distance away from the first strip line and includes a second coupling section for the coupling of an output signal, and a second line. The first strip line and the second strip line each have at least one bending section, and the first and second line have a small line-width compared to the first and second coupling sections. The DC blocking device of the invention is advantageous as it makes it possible to reduce spatial constraints for the installation of the DC blocking device in mobile communication equipment, and to achieve proper coupling despite shortened coupled sections in the DC blocking device.