Electronic apparatus and electrical element

An electronic apparatus comprising:

• a substrate including a main surface;
• an electronic component mounted on the main surface of the substrate;
• and
• an electrical element surface-mounted on the main surface of the substrate;
• wherein
• the electrical element includes:
• a base material including a plurality of laminated electrical insulating materials;
• a transmission line portion included at the base material;
• and
• a first connection portion and a second connection portion included at the base material, and each of the first connection portion and the second connection portion being continuous with a corresponding one of a plurality of portions of the transmission line portion;
• the base material includes a recessed portion in which a cavity is provided in at least one of the plurality of laminated electrical insulating materials such that a number of the plurality of laminated electrical insulating materials at other portions of the base material outside of the recessed portion is greater than a number of the plurality of laminated electrical insulating materials at the recessed portion;
• each of the first connection portion and the second connection portion is provided at a corresponding one of the other portions;
• each of the first connection portion and the second connection portion is connected to a circuit included at the substrate by an electrically conductive bonding material;
• the electrical element is surface-mounted on the substrate such that the recessed portion faces the electronic component;
• and
• in a direction perpendicular to the main surface of the substrate, a dimension of each of the other portions is greater than a dimension of the electronic component facing the recessed portion.