Capacitor design structure and method, printed circuit board and electronic equipment

Abstract

The invention discloses a design structure and method of a capacitor, a printed circuit board and electronic equipment, and relates to the technical field of circuit design, the design structure comprises a hollow structure, a preset medium and a transmission line, the hollow structure is arranged between a first signal layer and a second signal layer of the printed circuit board, and the preset medium with a specific dielectric constant is filled, so that the transmission line is formed. According to the invention, the function of constructing a required target capacitance value under the condition of not introducing an additional via hole is realized, and meanwhile, the transmission line and the hollow structure are integrated in the same interlayer structure, so that smooth transition and structural symmetry of a link are kept. According to the invention, the problems of discontinuous impedance and signal loss caused by the increase of via holes in the traditional AC coupling capacitor design are solved, and the technical effects of improving the signal integrity, the transmission stability and the design success rate of a signal link and reducing the risk of product development are achieved.