| 摘要 |
PROBLEM TO BE SOLVED: To provide a small-sized high frequency module with excellent performance. SOLUTION: The high frequency module includes: a circuit board 2 with a first through-hole 2a and provided with a wiring pattern 3; an electric circuit formed by connecting electronic components 8 including a heat generating component 7 to the wiring pattern 3; a metallic plate 1 made of a magnetic material arranged to a lower side of the circuit board 2; and a nonreversible circuit element K3 provided at a position of the first through-hole 2a, and the nonreversible circuit element includes: a lower yoke 11 formed with a flat metallic plate 1 with an extension part 1c, and comprising a bottom plate 1b and a side plate 1a inserted to the first through-hole 2a; and an upper yoke 12 coupled to the lower yoke 11, then the high frequency module is entirely downsized, and the magnetic flux flowing through a magnetic closed circuit formed by the upper and lower yokes 11, 12 is increased to enhance the performance. COPYRIGHT: (C)2006,JPO&NCIPI
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