发明名称 |
Saw Filter With Improved Selection or Insulation |
摘要 |
Between the two acoustic tracks of a SAW filter constructed on the surface of a piezoelectric substrate, a metallic shielding structure is positioned and connected to ground in order to shield two transducers positioned in different tracks. In this way crosstalk within a filter is prevented and the stop-band selection is improved.
|
申请公布号 |
US2007279156(A1) |
申请公布日期 |
2007.12.06 |
申请号 |
US20040559508 |
申请日期 |
2004.04.16 |
申请人 |
PITSCHI MAXIMILIAN;JUNGKUNZ MATTHIAS |
发明人 |
PITSCHI MAXIMILIAN;JUNGKUNZ MATTHIAS |
分类号 |
H03H9/54;H03H;H03H9/00;H03H9/02;H03H9/145;H03H9/64 |
主分类号 |
H03H9/54 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|