Abstract: An apparatus is disclosed for a multiplexing filter circuit (MFC). In example aspects, the MFC includes multiple filters, with each respective filter of the multiple filters having a respective distinct passband that corresponds to a frequency band. The multiple filters include a first group of filters and a second group of filters that is different from the first. The MFC includes a first plurality of nodes coupled between the multiple filters and an antenna port, with the first plurality of nodes including a first node coupled between the first group of filters and the antenna port. The MFC includes a second plurality of nodes coupled between the multiple filters and processing circuitry, with the second plurality of nodes including a first node coupled between the second group of filters and the processing circuitry. The first and second groups of filters each include a filter of the multiple filters in common.

Abstract: Aspects are provided for multiband multiplexers. One example is a multiband multiplexer with a first filter element configured to have a first passband that spans a first predefined frequency range of a first communication band and a second predefined frequency range of a second communication band, wherein the first predefined frequency range overlaps a portion of the second predefined frequency range, a second filter element configured to have a second passband distinct from the first passband, a third filter element configured to have a third passband distinct from the first and second passbands, and a fourth filter element configured to have a fourth passband distinct from the first, second, and third passbands.