Noise filter

A noise filter comprising:

• a first conductive line extending between an input terminal portion and an output terminal portion, the first conductive line including:
• an input-side conductive line extending between the input terminal portion and a branch portion;
• and
• an output-side conductive line extending between the output terminal portion and the branch portion;
• a second conductive line connected to the branch portion of the first conductive line, wherein a capacitor is on the second conductive line;
• and
• a first magnetic body surrounding at least a part of a circumference of at least a part of the first conductive line, the first magnetic body being configured to magnetically couple the input-side conductive line to the output-side conductive line such that at least an equivalent series inductance of the capacitor and a parasitic inductance of the second conductive line are reduced by a mutual inductance between the input-side conductive line and the output-side conductive line, the first magnetic body comprising:
• a first magnetic body portion surrounding at least a part of a circumference of a first portion that is at least a part of the input-side conductive line;
• a second magnetic body portion surrounding at least a part of a circumference of a second portion that is at least a part of the output-side conductive line;
• and
• a third magnetic body portion extending between the first magnetic body portion and the second magnetic body portion, the third magnetic body portion being configured to adjust a coupling coefficient between the input-side conductive line and the output-side conductive line.