Abstract: An electromagnetic field analysis apparatus includes an information input device configured to input information as to wirings and components of an analysis object and a modeling device configured to generate a simulation model of the analysis object based on the inputted information as to wirings and components of the analysis object. A model simplification device simplifies the simulation model into a simplified simulation model by dividing the analysis object according to the simulation model into a plurality of cells and thinning out, when a plurality of elements are included in a cell, the plurality of elements.

Abstract: A noise injection apparatus for injecting noise to a printed circuit board is disclosed that includes a signal generator that generates noise, a coaxial cable having one end connected to an output of the signal generator, and a probe that is connected to another end of the coaxial cable and is configured to convey the noise generated by the signal generator to a power supply and a ground pin of a device element of the printed circuit board via the coaxial cable.

Abstract: A testing method for measuring electromagnetic interference of a noise on a to-be-tested printed circuit board, has the steps of: a) injecting a signal simulating an expected noise of a predetermined device mounted on the to-be-tested printed circuit board, into the to-be-tested printed circuit board, in a condition in which at least the predetermined device is not actually mounted on the to-be-tested printed circuit board; and b) measuring electromagnetic interference of the signal.

Abstract: A noise injection apparatus for injecting noise to a printed circuit board is disclosed that includes a signal generator that generates noise, a coaxial cable having one end connected to an output of the signal generator, and a probe that is connected to another end of the coaxial cable and is configured to convey the noise generated by the signal generator to a power supply and a ground pin of a device element of the printed circuit board via the coaxial cable.

Abstract: A testing method for measuring electromagnetic interference of a noise on a to-be-tested printed circuit board, has the steps of: a) injecting a signal simulating an expected noise of a predetermined device mounted on the to-be-tested printed circuit board, into the to-be-tested printed circuit board, in a condition in which at least the predetermined device is not actually mounted on the to-be-tested printed circuit board; and b) measuring electromagnetic interference of the signal.

Abstract: An electromagnetic field analysis apparatus includes an information input device configured to input information regarding wirings and components of an analysis object and a modeling device configured to generate a simulation model of the analysis object based on the inputted information regarding the wirings and the components of the analysis object. A model simplification device simplifies the simulation model into a simplified simulation model by dividing the analysis object according to the simulation model into a plurality of cells and thinning out, when a plurality of elements are included in a cell, the plurality of elements included in the cell such that difference between a calculation result of an electromagnetic field distribution of the analysis object according to the simplified simulation model and a measurement result of actual electromagnetic field distribution of the analysis object is minimal.