Abstract: A conductive circuit of a thin film for using in a planar magnetic transducer, where the conductive circuit is created from laser etching, including laser ablation or laser delamination of portions of a conductive material disposed on a diaphragm substrate. The conductive circuit so formed has varied widths, height, or spacing throughout the diaphragm, allowing for adaptation to certain desired performance characteristics. Performance characteristics include a uniform force distribution on the diaphragm, creating very high impedance circuits, increasing current in the circuit, increasing force, and increasing efficiency.

Abstract: An anti-diffraction plate for including in a planar magnetic transducer. The anti-diffraction plate includes anti-diffraction structures for positioning adjacent to magnets of the planar magnetic transducer. By introducing a shape over top surface of the magnets, the anti-diffraction structures cause the elimination of diffraction patterns as a main audio wavefront passes by the magnets from a diaphragm. A diffusion structure for diffusing reflected sound waves, the diffusion structures reducing or eliminating the power and capacity of the reflected sound waves to create interference patterns with oncoming sound waves.