| 发明名称 |
VARIABLE FILTER CIRCUIT AND WIRELESS COMMUNICATION APPARATUS |
| 摘要 |
A variable filter circuit includes a serial arm connected between ports (P1-P2), a parallel arm having a resonator connected in series between ports (P1-P3), and another parallel arm having another resonator connected in series between ports (P2-P3). The serial arm includes a capacitor connected between the ports (P1-P2), and the parallel arms include variable capacitances connected in series to the resonators. |
| 申请公布号 |
US2016344364(A1) |
申请公布日期 |
2016.11.24 |
| 申请号 |
US201615230764 |
申请日期 |
2016.08.08 |
| 申请人 |
Murata Manufacturing Co., Ltd. |
发明人 |
OGAMI Takashi;TADA Hitoshi;TANI Masakazu;SUGIYAMA Shouzo |
| 分类号 |
H03H7/01;H04B1/00;H04B1/12 |
主分类号 |
H03H7/01 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A variable filter circuit comprising:
a serial arm connected between a first input/output end and a second input/output end, a first parallel arm including a first resonator connected in series between the first input/output end and a ground connection end, and a second parallel arm including a second resonator connected in series between the second input/output end and the ground connection end, wherein the serial arm includes a capacitor connected in series between the first input/output end and the second input/output end; and at least one of the first and second parallel arms includes a variable reactance connected in series to the resonator. |
| 地址 |
Kyoto JP |
