A marine acoustic source system for generating an acoustic wave in a body of water. , a liquid impermeable sheet 11 disposed on one side of the liquid retentive sheet 12, and a liquid gradual-releasing sheet made of a fibrous material and less air permeable than the liquid retentive sheet 12 disposed on the other side of the liquid retentive sheet 12. A first filter coupled to the input node receives the input signal, attenuates the first and third components, and communicates a first signal substantially comprising the second component. A light source well may be formed in the light input, and a light source may be disposed within the light source well. An inclined surface is defined on the surface of the print protection layer. A second microstrip radiator, i.