公开(公告)号：DE59704087D1

公开(公告)日：2001-08-23

申请号：DE59704087

申请日：1997-08-28

Applicant: EPCOS AG

Inventor： BAIER THOMAS ,  OSTNER HELMUT ,  SCHROPP ISIDOR

IPC: H03H9/145 ,  H03H9/64

公开(公告)号：DE59704086D1

公开(公告)日：2001-08-23

申请号：DE59704086

申请日：1997-08-28

Applicant: EPCOS AG

Inventor： BAIER THOMAS

IPC: H03H9/02 ,  H03H9/145 ,  H03H9/64

Abstract: PCT No. PCT/DE97/01878 Sec. 371 Date Mar. 12, 1999 Sec. 102(e) Date Mar. 12, 1999 PCT Filed Aug. 28, 1997 PCT Pub. No. WO98/12807 PCT Pub. Date Mar. 26, 1998Twin dual mode filter with DMS filters have an input and output transducer (2; 12) per DMS track (A, B) within reflectors (3, 3) and further reflectors (7, 11) between the transducers that are respectively interconnected to one of the transducers. The reflectors (7, 11) of the input or, respectively, output side are respectively connected to one another via interconnects (8, 8). The DMS tracks (A, B) are frequency-shifted relative to one another such that the high-frequency resonance of the low-frequency track (B) falls onto the low-frequency resonance of the high-frequency track (A).

公开(公告)号：CA2294168A1

公开(公告)日：1998-12-17

申请号：CA2294168

申请日：1998-06-09

Applicant: EPCOS AG

Inventor： BAIER THOMAS ,  STRAUSS GEORG

IPC: H03H9/00 ,  H03H9/145 ,  H03H9/64

Abstract: The invention relates to a dual-mode surface wave filter which can be operated in a symmetrical or asymmetrical manner, comprising tracks (A, B) which are coupled to each other by transformers and interdigital converters for each track arranged inside reflectors and acting as input or output converters. The impedance of the input and/or output converters of the filter is determined by omission or overlapping weighting and/or by dividing the input and output converters according to each acoustic track (A, B) into several at least partially series-connected individual converters (W3-W6).

公开(公告)号：DE59913935D1

公开(公告)日：2006-11-30

申请号：DE59913935

申请日：1999-03-22

Applicant: EPCOS AG

Inventor： ALI-HACKL MARKUS ,  FREISLEBEN STEFAN ,  JOHANNES THOMAS ,  BAIER THOMAS ,  BAUERNSCHMITT ULRICH ,  ROESLER ULRIKE

IPC: H03H9/145 ,  H03H9/64 ,  H03H9/00 ,  H03H9/02

Abstract: A surface acoustic wave filter having compensated capacitive and inductive crosstalk between adjacent IDT input and output transducers includes electromagnetically coupled transducers split into partial transducers. The routing of the partial transducer pads is modified such that the flux directions of the magnetic couplings between the adjacent partial transducers are oppositely directed so that the total induced magnetic flux is zero. The partial transducers are connected in series or in parallel such that, in the case of symmetric operation, the crosstalk capacitances between adjacent pads and transducer surfaces are balanced at the corresponding port.

公开(公告)号：DE102004005129A1

公开(公告)日：2005-08-18

申请号：DE102004005129

申请日：2004-02-02

Applicant: EPCOS AG

Inventor： MATH CHRISTIAN ,  KOVACS GUENTER ,  RUILE WERNER ,  BAIER THOMAS ,  LEIDL ANTON ,  GAWLIK WALDEMAR

IPC: H01L23/62 ,  H01L23/52 ,  H05F3/02

Abstract: An electrical component has electrically conducting structures placed on an electrically isolating or semiconductive substrate and component structures sensitive to a voltage or an electrical arcing and galvanically separated from one another. To prevent an arcing between the galvanically separated component structures, the component structures are short-circuited with a shunt line having a smaller cross-section than the remaining electrical conductor tracks. The shunt lines can be burnt through by application of an electrical current at any given time, whereby a galvanic separation of the component structures is effected, if necessary, for the function of the component.

公开(公告)号：DE19724259C2

公开(公告)日：2002-11-14

申请号：DE19724259

申请日：1997-06-09

Applicant: EPCOS AG

Inventor： BAIER THOMAS ,  STRAUS GEORG

IPC: H03H9/00 ,  H03H9/145 ,  H03H9/64

Abstract: A dual-mode surface acoustic wave filter that can optionally be operated balanced or unbalanced, having tracks which are coupled to one another via coupling converters. The filter has interdigital converters for each track which are disposed within reflectors and act as input and output converters. The impedance of the input and/or output converters of the filter is determined by omission or overlap weighting and/or by splitting the input and output converters into a plurality of individual converters. At least some of the individual converters are connected in series, for each acoustic track.

公开(公告)号：DE19638399C3

公开(公告)日：2002-04-18

申请号：DE19638399

申请日：1996-09-19

Applicant: EPCOS AG

Inventor： SCHROPP ISIDOR ,  BAIER THOMAS ,  OSTNER HELMUT

IPC: H03H9/64

公开(公告)号：DE19638627B4

公开(公告)日：2007-09-27

申请号：DE19638627

申请日：1996-09-20

Applicant: EPCOS AG

Inventor： BAIER THOMAS ,  SCHOLL GERD

IPC: H03H9/64 ,  H03H9/00 ,  H03H9/145

公开(公告)号：DE19818038B4

公开(公告)日：2004-07-22

申请号：DE19818038

申请日：1998-04-22

Applicant: EPCOS AG

Inventor： BAIER THOMAS ,  STRAUS GEORG

IPC: H03H9/00 ,  H03H9/64 ,  H03H9/145

公开(公告)号：DE59805522D1

公开(公告)日：2002-10-17

申请号：DE59805522

申请日：1998-06-09

Applicant: EPCOS AG

Inventor： BAIER THOMAS ,  STRAUSS GEORG

IPC: H03H9/00 ,  H03H9/145 ,  H03H9/64

Abstract: A dual-mode surface acoustic wave filter that can optionally be operated balanced or unbalanced, having tracks which are coupled to one another via coupling converters. The filter has interdigital converters for each track which are disposed within reflectors and act as input and output converters. The impedance of the input and/or output converters of the filter is determined by omission or overlap weighting and/or by splitting the input and output converters into a plurality of individual converters. At least some of the individual converters are connected in series, for each acoustic track.