公开(公告)号：US20060139120A1

公开(公告)日：2006-06-29

申请号：US10543837

申请日：2004-11-19

申请人： Hiroshi Yamaguchi ,  Takahiko Yamakawa ,  Hiroshi Nakatsuka ,  Hiroyuki Nakamura ,  Keiji Onishi

发明人： Hiroshi Yamaguchi ,  Takahiko Yamakawa ,  Hiroshi Nakatsuka ,  Hiroyuki Nakamura ,  Keiji Onishi

IPC分类号： H03H9/70 ,  H03H9/58 ,  H03H9/64

CPC分类号： H03H9/605 ,  H03H9/6483

摘要： The present invention is directed to a piezoelectric resonator filter for allowing a high-frequency signal in a desired frequency band to pass therethrough, including: two or more reactance elements in serial connection between input and output terminals; at least three or more piezoelectric resonators in parallel connection between the input and output terminals; and an inductor having a grounded end. Among the three or more piezoelectric resonators, only those piezoelectric resonators which do not adjoin each other in the equivalent circuit are connected in common to the inductor.

摘要翻译： 本发明涉及一种用于允许期望频带中的高频信号通过的压电谐振器滤波器，包括：在输入和输出端子之间串联连接的两个或更多个电抗元件; 至少三个或更多个压电谐振器并联连接在输入和输出端子之间; 以及具有接地端的电感器。 在三个或更多个压电谐振器中，只有在等效电路中彼此不相邻的那些压电谐振器共同地连接到电感器。