Patent ID: 6853334

Claim:
A satellite broadcast reception apparatus comprising a multilayer substrate provided with a microstrip line and including more than two pattern layers sandwiching a dielectric layer, the apparatus receiving an electric wave signal from an antenna, passing the signal through a waveguide and transmitting the signal via a probe to said microstrip line, wherein: said microstrip line is formed at one surface layer's pattern a second layer's pattern cooperating with said one surface layer's pattern to sandwich a dielectric layer underlying said one surface layer's pattern and said probe is inserted from said one surface layer's pattern into a probe hole extending in a direction intersecting said multilayer substrate to pass said probe; and in at least one pattern layer other than said first and second, pattern layers at least a region surrounding said probe hole is one of a pattern free region provided by removing a predetermined region surrounding said probe hole and an isolated region corresponding to a predetermined region surrounding said probe hole and electrically isolated from an outer, surrounding region of said at least one pattern layer.