The present disclosure provides an apparatus that includes a plurality of filter circuits configured to filter one or more signals. The plurality of filter circuits includes a first filter component configured to have a first passband that spans adjacent transmission frequency ranges of a first communication band and a second communication band. The plurality of filter circuits further includes a second filter component having a second passband that spans a reception frequency range of a third communication band. The plurality of filter circuits further includes a third filter component having a third passband that spans adjacent reception frequency ranges of the first communication band and the third communication band. The plurality of filter circuits further includes a fourth filter component having a fourth passband that spans the second reception frequency range of the second communication band.