Filter module for multiple carrier aggregation with ground plane

A filter module for multiple carrier aggregation comprising:

• a substrate having a first side and a second side opposite the first side;
• a plurality of acoustic filters disposed on the first side;
• a plurality of signal terminals disposed on the second side, each selectively connected to at least one of the plurality of acoustic filters, the plurality of signal terminals extending from at least two edges of the second side towards a central region of the second side;
• a ground plane disposed on the second side that covers at least a portion of the central region, the ground plane having a periphery that extends between the plurality of signal terminals;
• and
• one or more gaps between the plurality of signal terminals and the ground plane, the one or more gaps providing an electrically isolative spacing between the ground plane and the plurality of signal terminals.

A mobile device comprising:

• an antenna;
• a transceiver;
• and
• a filter module coupled between the antenna and the transceiver and including a substrate having a first side and a second side opposite the first side, a plurality of acoustic filters disposed on the first side, a plurality of signal terminals disposed on the second side, each selectively connected to at least one of the plurality of acoustic filters, the plurality of signal terminals extending from at least two edges of the second side towards a central region of the second side, a ground plane disposed on the second side that covers at least a portion of the central region, the ground plane having a periphery that extends between the plurality of signal terminals, and one or more gaps between the plurality of signal terminals and the ground plane, the one or more gaps providing an electrically isolative spacing between the ground plane and the plurality of signal terminals.