電極分割縦振動型セラミック・トランス・フィルタについて

概要

論文の詳細を見る
This paper describes theoretical studies of the transformation ratio and the specific band width on four types of ceramic trans-filters.　Eache cramic trans-filter discussed here consists of the longitudinally vibrating resonator and differs only in the electrode-arrangement on the resonator.　In the electrode-arrangement as shown in the first half (i･e･, section 1 and 2) of this paper, it is found that a large transformation ratio can be obtained and the larger the ratio is, the smaller the specific band width becomes. Consequently, it appears that these ceramic trans-filters should be used as a trans-filter having a large transformation ratio and a narrow band width.　Moreover, the cermic trans-filters having a small transformation ratio and a wide band width are also discussed in the latter half (i･e･, section 3 and 4), and these trans-filters differ from the above trans-filters on the electrode-arrgngement.　Since the coupling capacitances between the input and output terminals have only less effects on the specific band width, ceramic trans-filters are discussed in disregard of these capacitances in this paper.　But the effects of the coupling capacitances are discussed in the appendix, because the characteristic of an infinite attenuation-pole is obtained by these capacitances.
山形大学の論文
1964-12-25