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公开(公告)号：WO0161859A3
公开(公告)日：2002-02-14
申请号：PCT/DE0100406
申请日：2001-02-02
Applicant: EPCOS AG , BAIER THOMAS , UNTERBERGER MICHAEL
Inventor： BAIER THOMAS , UNTERBERGER MICHAEL
CPC classification number: H03H9/0057 , H03H9/0038 , H03H9/0071 , H03H9/14591 , H03H9/6463 , H03H9/6483
Abstract: The invention relates to a high frequency surface wave filter comprising reactance elements, which is particularly suitable for use in the mobile radio telephone service. Said filter is balanced on both sides, is electrically symmetrical and comprises a quadripolar reactance series element which can be configured from two bipolar reactance elements or one quadripolar reactance series element and a resonator. One contact rail of each reactance element is connected to the input side of the filter and the other contact rail is connected to the output side of the filter.
Abstract translation: 建议用抗合适特别是用于移动无线SAW RF滤波器，其在两侧上平衡构成的，被电配置成对称和一个四极Reaktanzserienelement包括，其可在特定的谐振器的两个二极电抗或四极电抗元件和形成， 其中，所述电抗元件，以在过滤器和其他的汇流条的输入侧中的相应的当前轨被连接到滤波器的输出侧。
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公开(公告)号：DE59704206D1
公开(公告)日：2001-09-06
申请号：DE59704206
申请日：1997-09-08
Applicant: EPCOS AG
Inventor： SCHROPP ISIDOR , OSTNER HELMUT , MACHUI JUERGEN , BAIER THOMAS
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公开(公告)号：DE10007178A1
公开(公告)日：2001-08-23
申请号：DE10007178
申请日：2000-02-17
Applicant: EPCOS AG
Inventor： BAIER THOMAS , UNTERBERGER MICHAEL
Abstract: The filter has reactance elements (RS1,RS2), is formed on a piezoelectric substrate, is configured as balanced/balanced, has symmetrical inputs and outputs with two connections each, is electrically symmetrical and has a four-pole reactance series element (VS) or two reactance elements with two poles. Each reactance element has interdigital converters with current rails connected to the input and output sides.
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公开(公告)号：CA2399303A1
公开(公告)日：2001-08-23
申请号：CA2399303
申请日：2001-02-02
Applicant: EPCOS AG
Inventor： BAIER THOMAS , UNTERBERGER MICHAEL
Abstract: The invention relates to a high frequency surface wave filter comprising reactance elements, which is particularly suitable for use in the mobile rad io telephone service. Said filter is balanced on both sides, is electrically symmetrical and comprises a quadripolar reactance series element which can b e configured from two bipolar reactance elements or one quadripolar reactance series element and a resonator. One contact rail of each reactance element i s connected to the input side of the filter and the other contact rail is connected to the output side of the filter.
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公开(公告)号：CA2294167A1
公开(公告)日：1998-12-17
申请号：CA2294167
申请日：1998-06-03
Applicant: EPCOS AG
Inventor： BAIER THOMAS , BAUERNSCHMITT ULRICH
Abstract: The invention relates to a transversal-mode resonator filter with reflectors (R1, R3) and input and output transformers (W1, W2) arranged between said reflectors. The impedance of the input and/or output transformers is adjusted by reducing the original active finger overlapping of the normal finger structure. The amount of reduction can vary when the finger overlapping of the transformers is reduced.
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Patent Agency Ranking
公开(公告)号：DE50114948D1
公开(公告)日：2009-08-06
申请号：DE50114948
申请日：2001-02-02
Applicant: EPCOS AG
Inventor： BAIER THOMAS , UNTERBERGER MICHAEL
Abstract: The filter has reactance elements (RS1,RS2), is formed on a piezoelectric substrate, is configured as balanced/balanced, has symmetrical inputs and outputs with two connections each, is electrically symmetrical and has a four-pole reactance series element (VS) or two reactance elements with two poles. Each reactance element has interdigital converters with current rails connected to the input and output sides.
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公开(公告)号：DE59805424D1
公开(公告)日：2002-10-10
申请号：DE59805424
申请日：1998-06-03
Applicant: EPCOS AG
Inventor： BAIER THOMAS , BAUERNSCHMITT ULRICH
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公开(公告)号：CA2325434A1
公开(公告)日：1999-09-30
申请号：CA2325434
申请日：1999-03-22
Applicant: EPCOS AG
Inventor： JOHANNES THOMAS , BAIER THOMAS , BAUERNSCHMITT ULRICH , ROSLER ULRIKE , ALI-HACKL MARKUS , FREISLEBEN STEFAN
Abstract: The present invention relates to a surface-wave acoustic filter having a capacitive and inductive cross-talk which is compensated between adjacent and interdigitated input and output transformers. These transformers (20; 23) are divided into partial transformers (d, d'; e, e') and the guidance of their pads (24, 25; 26, 27) is modified so that the magnetic couplings between adjacent partial transformers have opposite flow directions (H, H') and so that the total magnetic flow induced is equal to zero. The partial transformers are mounted in series or in parallel so that during a symmetrical operation, the cross-talk capacities between adjacent pads and transformer surfaces are compensated at the corresponding gate.
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公开(公告)号：AT434865T
公开(公告)日：2009-07-15
申请号：AT01919126
申请日：2001-02-02
Applicant: EPCOS AG
Inventor： BAIER THOMAS , UNTERBERGER MICHAEL
Abstract: The filter has reactance elements (RS1,RS2), is formed on a piezoelectric substrate, is configured as balanced/balanced, has symmetrical inputs and outputs with two connections each, is electrically symmetrical and has a four-pole reactance series element (VS) or two reactance elements with two poles. Each reactance element has interdigital converters with current rails connected to the input and output sides.
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公开(公告)号：DE19818826B4
公开(公告)日：2004-11-04
申请号：DE19818826
申请日：1998-04-27
Applicant: EPCOS AG
Inventor： MACHUI JUERGEN , STRAUSS GEORG , HAGN PETER , DETLEFSEN ANDREAS , BAIER THOMAS
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