| 摘要 |
<p>Provided is a band-pass filter using a ?/4 transmission line. According to an embodiment of the present invention, a band-pass filter using a support layer formed of a semiconductor wafer, a circuit unit constructed on the support layer or between multilayered insulating layers formed on the support layer, and a ?/4 transmission line formed on the circuit unit includes: at least one miniaturized ?/4 transmission line with capacitors connected in parallel to an input/output connection portion of a coupled line with ends shorted in the diagonal direction; and a ground plane surrounding the band-pass filter.</p> |
