60GHz帯における帯域阻止形自己注入同期NRDガイドガン発振器の理論及び実験的検討

摘要

自走式NRDガイドガン発振器の誘電体線路に高Q共振器を側結合させた帯域阻止形自己注入同期NRDガイドガン発振器の発振周波数、Qファクタ、及びQファクタから計算した位相雑音の評価を行った。計算と実験を比較したところ、両者の傾向は概ね一致し、帯域阻止形自己注入同期NRDガイドガン発振器は帯域反射形のそれと比べてQファクタが高く、良好な位相雑音特性を示すことが明らかになった。%The band-stop type of self-injection locked NRD guide Gunn oscillator, which consists of a high-Q ceramic resonator side-coupled to a dielectric strip of the free-running NRD guide Gunn oscillator, was analyzed from the viewpoints of the oscillation frequency, Q-factor, and phase noise. Good agreement of the tendency between the calculated and measured oscillation performance was quite satisfactory, and thus the analytical procedure proposed in this paper was confirmed. In addition, it is obvious that the band-stop type of self-injection locked NRD guide Gunn oscillator has good advantage such as high Q-factor as well as low phase noise compared with that of the reflection type of self-injection locked one at 60GHz.