| 摘要 |
An electronic device is provided. The electronic device includes: a circuit board having a surface on which a hollow is formed; an electronic component placed into the hollow; a pattern wiring which is formed on a bottom surface of the hollow and whose tip is provided at a position corresponding to a signal electrode of the electronic component; a signal wire connecting a tip of the pattern wiring and the signal electrode of the electronic component; two in-hollow ground patterns formed so as to sandwich the tip of the pattern wiring therebetween on the bottom surface of the hollow; and two or more ground wires that connect two ground electrodes provided on the electronic component so as to sandwich the signal electrode therebetween to the corresponding in-hollow ground patterns, respectively.
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