| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a microwave circuit board that maintains impedance matching with an electronic component without increasing the width of a metal conductor section on a microwave substrate, reduces the increase in resistance by a skin effect, while suppressing the increase in DC resistance, and can reduce the power loss, reflection energy, and electromagnetic radiation. <P>SOLUTION: The metal conductor section is formed at least on the main surface of the substrate or in the substrate and transmits microwave electrical signals. In the metal conductor section, when the height of the metal conductor section, the skin depth associated with the skin effect of the microwaves flowing in the metal conductor section, the distance between adjacent portions at a plurality of groove sections, each width of the plurality of groove sections, and each depth of the plurality of groove sections are set to ch, δ, w, t, and h, respectively, relational expressions w=2×δ, t=δ, and h=ch-2×δ (1) are satisfied, the microwave circuit board is constituted. <P>COPYRIGHT: (C)2008,JPO&INPIT |
