High frequency switch and radio communication apparatus with layered body for saw filter mounting

摘要

A layered body of a SAW filter includes a surface dielectric layer having a surface layer electrode pattern formed thereon, and a first dielectric layer having a pair of electrode patterns and a first ground electrode pattern formed thereon. A pair of balanced output terminals of SAW filters of unbalanced input-balanced output are connected respectively to the pair of electrode patterns via the surface layer electrode pattern, and a part of the first ground electrode pattern is disposed between the pair of the electrode patterns.