Patent ID: 7663455

Claim:
A high frequency module comprising a layered substrate and a band-pass filter element mounted on the layered substrate, wherein: the layered substrate incorporates: a mounting surface on which the band-pass filter element is mounted; a plurality of intra-substrate conductor layers; and a plurality of intra-substrate dielectric layers, the intra-substrate dielectric layers and the intra-substrate conductor layers being alternately stacked; the band-pass filter element includes conductor layers for band-pass filter and dielectric layers for band-pass filter that are stacked and that implement a function of a band-pass filter, but the band-pass filter element does not include any conductor layer that functions as an electromagnetic shield; the intra-substrate conductor layers include a conductor layer that is located to be opposed to the band-pass filter element with the mounting surface disposed in between and that functions as an electromagnetic shield for the band-pass filter element; the dielectric layers for band-pass filter have a permittivity higher than that of the intra-substrate dielectric layers; and the layered substrate includes a circuit formed using the intra-substrate conductor layers, and the conductor layer that functions as the electromagnetic shield also functions as a ground of the circuit.