基本信息:
- 专利标题： 광대역 음향 결합 박막 ＢＡＷ 필터
- 专利标题（英）：Wide-band acoustically coupled thin-film baw filter
- 专利标题（中）：宽带超声波耦合薄膜滤波器
- 申请号：KR1020127030465 申请日：2011-04-21
- 公开(公告)号：KR1020130091658A 公开(公告)日：2013-08-19
- 发明人： 멜타우스,요한나 , 펜살라,투오마스
- 申请人： 테크놀로지안 투트키무스케스쿠스 브이티티 오와이
- 申请人地址： Vuorimiehentie *, FI-***** Espoo, Finland
- 专利权人： 테크놀로지안 투트키무스케스쿠스 브이티티 오와이
- 当前专利权人： 테크놀로지안 투트키무스케스쿠스 브이티티 오와이
- 当前专利权人地址： Vuorimiehentie *, FI-***** Espoo, Finland
- 代理人： 특허법인 남앤드남
- 优先权： FI20105443 2010-04-23
- 国际申请： PCT/FI2011/050368 2011-04-21
- 国际公布： WO2011131844 2011-10-27
- 主分类号： H03H9/02
- IPC分类号： H03H9/02 ; H03H9/205 ; H03H9/56
In the bulk acoustic wave (BAW) filter, based on the side acoustically coupled resonators on the piezoelectric thin film, the two different sound panpa mode, for example, the thickness expansion (vertical axis) (TE1) and the second harmonic thickness shear (TS2) mode having different characteristics it is possible to form the pass band response using. The present invention is based on the excitation of the at least two side faces standing wave resonator belonging to a different mode panpa that facilitates transmission of the signal. Passband is designed by adjusting the wave propagation characteristics of the device, the resonator is excited at the proper frequency, to form a pass-band of the desired shape. Thus, the bandwidth of the filters described herein may be less than two times the conventional micro-acoustic filter. As a result, it will have a significant commercial and technical value.
公开/授权文献:
- KR101764787B1 광대역 음향 결합 박막 ＢＡＷ 필터 公开/授权日：2017-08-03
信息查询:
EspacenetIPC结构图谱:
| H | 电学 |
| --H03 | 基本电子电路 |
| ----H03H | 阻抗网络，例如谐振电路；谐振器 |
| ------H03H9/00 | 包括机电或电声元件的网络，如谐振电路 |
| --------H03H9/02 | .零部件 |