Conformable polymer for frequency-selectable heating locations

A transducer device comprising:

• a substrate, including a polymer base material including an electromagnetic energy responsive material, wherein the substrate includes multiple layers respectively having different material compositions, and wherein individual ones of the multiple layers include different responses to an applied AC electromagnetic input signal, and wherein the multiple layers include:
• a first layer that includes an electromagnetic energy absorbing first doping material;
• and
• a second layer that includes an electromagnetic energy focusing second doping material;
• and
• an electrically conductive AC electromagnetic input structure, included in or directly or indirectly on the substrate, configured to receive an applied AC electromagnetic input signal for coupling electromagnetic energy into the substrate for actuating a transducer in the substrate in response to the applied AC electromagnetic input signal.

A device comprising:

• a substrate, including a polymer base material including an electromagnetic energy responsive material, wherein the substrate includes multiple layers respectively having different material compositions, and wherein individual ones of the multiple layers include different responses to an applied AC electromagnetic input signal, and wherein the multiple layers include:
• a first layer that includes an electromagnetic energy absorbing first doping material that includes carbon;
• and
• a second layer that includes an electromagnetic energy focusing second doping material that includes barium titanate;
• and
• an electrically conductive AC electromagnetic input structure, included in or directly or indirectly on the substrate, configured to receive an applied AC electromagnetic input signal for coupling electromagnetic energy into the substrate for actuating a transducer in the substrate in response to the applied AC electromagnetic input signal, wherein the second layer is located between the first layer and the electrically conductive AC electromagnetic input structure.