Joint structure of multilayer printed circuit board, multilayer printed circuit board and coaxial connector

摘要

PPROBLEM TO BE SOLVED: To provide a multiplayer printed circuit board and a connection structure which can reduce the reflection of a signal on an interface between a coaxial connector and the multiplayer printed circuit board and can be put into practical use at a low cost by securing the continuity of an electromagnetic field distribution at the interface at a higher level. PSOLUTION: A multiplayer printed circuit board 1 has a microstrip line 2 as a signal layer, and a plurality of grounding layers 3a, 4a, 5a, 6a, 7a provided on the lower part of the microstrip line 2 to be electrically connected mutually. Notches K3, K4, K5, K6 are provided in at least some grounding layers 3a, 4a, 5a, 6a of the plurality of grounding layers 3a, 4a, 5a, 6a, 7a, and the sizes of the notches K3, K4, K5, K6 are made different for each of the grounding layers 3a, 4a, 5a, 6a. PCOPYRIGHT: (C)2009,JPO&INPIT