| 20100265013 | Miniaturized Band-Pass Filter - Provided is a band-pass filter using a λ/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 λ/4 transmission line formed on the circuit unit includes: at least one miniaturized λ/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. | 10-21-2010 |
