Patent ID: 9294068
Filing Date: 2016-03-22
CPC Classification: H03H,H04B

Claim Text:
1. A filter circuit comprising: a first band-pass filter, a second band-pass filter, a third band-pass filter and a fourth band-pass filter each having an input terminal and an output terminal; a first terminal to which the output terminal of the first band-pass filter and the output terminal of the second band-pass filter are connected in common; a second terminal to which the output terminal of the third band-pass filter and the output terminal of the fourth band-pass filter are connected in common; a third terminal to which the input terminal of the first band-pass filter and the input terminal of the fourth band-pass filter are connected in common; and a fourth terminal to which the input terminal of the second band-pass filter and the input terminal of the third band-pass filter are connected in common, wherein whole pass bands of the first band-pass filter, the second band-pass filter, the third band-pass filter and the fourth band-pass filter differ from each other.