| 摘要 |
<p>PURPOSE:To increase the magnetic response speed by constituting radiation fins in parallel with the center axis of a bowlshaped magnetic core. CONSTITUTION:Grooves are constituted approximately in parallel with a center axis 12 of a bowl-shaped magnetic core 11 to form radiation fins 24, and a YIG element 14 is arranged between the shaft 12 and a plate-shaped magnetic core 13, and this magnetic core 11 is formed on a substrate (hybrid integrated circuit) 17. Since this exciter for YIG device has the same coil and exciting current as conventional though the device is miniaturized, the power consumption is not changed, and consequently, the calorific value is not changed, and the heat generated by the YIG device is sufficiently radiated by radiation fins which minimize the magnetic resistance. Since the magnetic resistance is minimized, the magnetic response speed is increased, and the device quickly responds regardless of the stepped exciting current. Consequently, the small-sized YIG device is realized which is built in a small-sized apparatus and has a high magnetic response speed, and the technical effect is large.</p> |
