Frequency tunable oscillator,申请号US20060587261-传众专利搜索

Frequency tunable oscillator

申请公布号：US7463104(B2)

申请号：US20060587261

申请日期：2006.03.27

申请公布日期：2008.12.09

申请人：

CANON KABUSHIKI KAISHA

发明人：SEKIGUCHI RYOTA;OUCHI TOSHIHIKO

分类号：H03B5/18

主分类号：H03B5/18

摘要：There is provided a frequency tunable oscillator that has less degradation of oscillation characteristics due to a parasitic reactance component or the like without mounting therein a lumped constant element such as a variable capacitance element. The frequency tunable oscillator includes a negative resistance element and a resonator which together form a feedback circuit. The frequency tunable oscillator further includes in at least a part of the feedback circuit, a distributed constant material so configured as to have a distributed constant such that an electrical length in the resonator is modulated, and a modification means for externally modifying the distributed constant material, wherein the oscillation frequency can be varied through the external modification by the modification means.