| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a high-frequency oscillator wherein the variation of the oscillation frequency is small even when the temperature varies. <P>SOLUTION: In this high-frequency oscillator, a dielectric resonator sealed with a sealing member having a reversible deformation characteristic is further sealed, and the internal pressure and the external pressure of the oscillator are set to a predetermined condition in accordance with the temperature characteristic of the oscillator. More specifically, when the oscillation frequency becomes higher as the temperature rises from ordinary temperature, the internal pressure is set higher than the external pressure, and when the oscillation frequency becomes lower, the internal pressure is set lower than the external pressure. In this constitution, the sealing member deforms toward the lower pressure side to change the gap between it and the dielectric resonator to relax the variation of the oscillation frequency. <P>COPYRIGHT: (C)2004,JPO</p> |
