UWB bandpass filter

A UWB band pass filter formed by a circuit board, the circuit board comprising:

• a first dielectric layer made of a dielectric substrate;
• a filter structure made of electrically conductive material, the filter structure being arranged on a first side of the first dielectric layer;
• and
• a first ground layer made of electrically conductive material, the first ground layer being arranged on a second side of the first dielectric layer,
• wherein the filter structure has an input terminal and an output terminal, between which a line extends that includes multiple first line sections and second line sections,
• wherein the filter structure has multiple first stubs that are arranged between the first line sections and that branch off from the second line sections,
• wherein the first line sections and the first stubs are arranged in parallel to one another, and
• wherein ends of the first stubs, that are not connected to the second line sections, are connected to the first ground layer via first feedthroughs that are led through the first dielectric layer.

A UWB band pass filter formed by a circuit board, the circuit board comprising:

• a first dielectric layer made of a dielectric substrate;
• a filter structure made of electrically conductive material, the filter structure being arranged on a first side of the first dielectric layer;
• and
• a first ground layer made of electrically conductive material, the first ground layer being arranged on a second side of the first dielectric layer,
• wherein the filter structure has an input terminal and an output terminal, between which a line extends that includes multiple first line sections and second line sections,
• wherein the filter structure has multiple first stubs that are arranged between the first line sections and that branch off from the second line sections,
• wherein the first line sections and the first stubs are arranged in parallel to one another,
• wherein the circuit board has a second dielectric layer, and wherein the filter structure is embedded on a first side of the second dielectric layer, so that the filter structure is embedded between the first dielectric layer and the second dielectric layer, and
• wherein a second ground layer made of electrically conductive material is arranged on a second side of the second dielectric layer.