公开(公告)号：EP2168202A4

公开(公告)日：2011-08-17

申请号：EP08781133

申请日：2008-06-27

申请人： SUPERCONDUCTOR TECH

发明人： TSUZUKI GENICHI ,  WILLEMSEN BALAM A

IPC分类号： H01P1/20 ,  H03H7/075

CPC分类号： H03H9/465 ,  G06F17/5036 ,  G06F17/5045 ,  G06F17/5063 ,  G06F17/5072 ,  G06F17/5077 ,  G06F2217/02 ,  G06F2217/08 ,  G06F2217/16 ,  G06F2217/82 ,  H01P1/20 ,  H01P1/20336 ,  H03H3/00 ,  H03H7/0153 ,  H03H7/0161 ,  H03H7/06 ,  H03H7/075 ,  H03H7/12 ,  H03H7/1758 ,  H03H7/1791 ,  H03H7/54 ,  H03H9/171 ,  H03H9/46 ,  H03H9/462 ,  H03H9/542 ,  H03H9/64 ,  H03H9/6406 ,  H03H2007/013 ,  H03H2009/02204 ,  H03H2210/012 ,  H03H2210/025 ,  H03H2210/033 ,  Y10T29/49018

摘要： A tunable RF filter comprises a signal transmission path having an input and output, a plurality of resonant elements disposed along the signal transmission path between the input and output, and a set of non-resonant elements coupling the resonant elements together to form a stop band having a plurality of transmission zeroes corresponding to respective frequencies of the resonant elements, and at least one sub-band between the transmission zeroes. The set of non-resonant elements comprises a first plurality of non-resonant elements respectively coupled in parallel with the resonant elements, and a second plurality of non-resonant elements respectively coupled in series with the resonant elements. The first plurality of non-resonant elements comprises at least one variable non-resonant element for selectively introducing at least one reflection zero within the stop band to create a pass band in one of the one sub-band(s) without varying any of the second plurality of non-resonant elements.

公开(公告)号：EP2013938A4

公开(公告)日：2010-05-05

申请号：EP06848738

申请日：2006-11-17

申请人： SUPERCONDUCTOR TECH

发明人： TSUZUKI GENICHI ,  WILLEMSEN BALAM A

IPC分类号： H01P1/203

CPC分类号： H01P1/20336 ,  H01P1/20 ,  H03H7/0153 ,  H03H7/12 ,  H03H7/1791 ,  H03H2210/012