Patent ID: 7132984

Claim:
An antenna with built-in filter comprising: a laminated dielectric block that is formed such that dielectric sheets each having a conductive film formed on one surface are laminated so as to constitute at least one filter; a radiation element fixedly provided at the laminated dielectric block and electrically connected to one electrode of the filter; and a feeding terminal electrode that is provided on a mounting face of the dielectric block, and opposes to a circuit board when the laminated dielectric block is mounted on the circuit board; wherein the feeding terminal electrode and the other electrode of the filter are electrically connected by at least one connecting wiring provided on one of one or more dielectric sheets, and two or more via-contacts each of which is composed of a conductor embedded into a contact hole formed in at least one of the one or more dielectric sheets, wherein the at least one connecting wiring and the two or more via-contacts are not exposed to an outer face of the laminated dielectric block, and wherein the two via-contacts are formed at places that are different from each other on a plane view of the dielectric block.