发明授权
- 专利标题: Transversal filter
- 专利标题(中): 横向过滤器
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申请号: US907011申请日: 1978-05-18
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公开(公告)号: US4200848A公开(公告)日: 1980-04-29
- 发明人: Karl Knauer , Hans-Joerg Pfleiderer
- 申请人: Karl Knauer , Hans-Joerg Pfleiderer
- 申请人地址: DEX Berlin & Munich
- 专利权人: Siemens Aktiengesellschaft
- 当前专利权人: Siemens Aktiengesellschaft
- 当前专利权人地址: DEX Berlin & Munich
- 优先权: DEX2727339 19770616
- 主分类号: G11C27/00
- IPC分类号: G11C27/00 ; H01L21/339 ; H01L29/40 ; H01L29/417 ; H01L29/76 ; H01L29/762 ; H01L29/768 ; H03H15/02 ; H03H7/28 ; G11C19/14 ; H03H7/30 ; H03K5/159
摘要:
A transversal filter has at least one analog shift register which includes a number of parallel inputs and one series output. A further number of individual, predeterminable evaluator circuits are provided, each evaluator circuit having at least one signal input for the input of the signal to be filtered and at least one output, and each evaluator circuit comprises a pair of capacitors arranged on a surface of a substrate. The substrate has at least one substrate terminal and comprises doped semiconductor material which carries a first insulating layer or blocking layer capacitor which contacts an oppositely doped zone located on the surface of the substrate and which is provided with a terminal contact. A second insulating layer or blocking layer capacitor is arranged beside the first capacitor, the second capacitor connectible, via a switching element, to an associated parallel input. At least one evaluator circuit is designed such that its doped zone has a recess into which the first insulating layer or blocking layer capacitor is disposed, the first capacitor likewise having a recess into which the second capacitor is disposed so that the second capacitor is surrounded by the doped zone and by the first capacitor.
公开/授权文献
- US5233313A High power field effect transistor amplifier 公开/授权日:1993-08-03
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