Through the 1st earth

摘要

PROBLEM TO BE SOLVED: To provide a high frequency circuit board wherein reduction in a radiation gain of a high frequency signal emitted from a radiation element can be suppressed to provide a higher radiation gain.;SOLUTION: The high frequency circuit board comprises a high frequency line board 11 formed thereon with a signal line 12; a power distribution line board 7 laminated on the board 11 via a first ground conductor 5b, and formed with a power distribution line 6 including a T-branch; a radiation element board 3 laminated on the board 7 via a second ground conductor 5a, and formed with a radiation element 2; a first transmission section 4b for electromagnetically connecting the signal line 12 to the power distribution line 6; and a second transmitter 4a for electromagnetically connecting the radiation element 2 to the power distribution line 6. A plurality of connection conductors 10 arranged in parallel with second and third line conductors 9a, 9b are formed to an opposite side to a first line conductor 8, while sandwiching the second and third line conductors 9a, 9b in a way of electrically interconnecting the first and second ground conductors 5b, 5a.;COPYRIGHT: (C)2006,JPO&NCIPI