Patent ID: 9673775
Date: 2017-06-06
CPC Classifications: H01P,H03H

Claim:
1. A circuit substrate for use in a branch circuit that includes an input path, a first output path including a high pass filter and connected to the input path, and a second output path including a low pass filter and connected to the input path, the circuit substrate comprising: a substrate body; an input signal line conductor with which the substrate body is provided and which is included in the input path; a first mounting portion provided on a main surface of the substrate body, included in the first output path and on which the high pass filter is mounted; at least one first output signal line conductor with which the substrate body is provided and which is included in the first output path; and a second mounting portion provided on the main surface of the substrate body, included in the second output path and on which the low pass filter is mounted; wherein the first output signal line conductor provided farthest upstream in a propagation direction of a signal is connected to the input signal line conductor via a first lumped-parameter element mounted on the main surface of the substrate body; and the first lumped-parameter element is included in only the first output path between the high pass filter and the input signal line conductor and is not included in the second output path.