CN101533938B - 低通滤波器 - Google Patents
低通滤波器 Download PDFInfo
- Publication number
- CN101533938B CN101533938B CN200810300575XA CN200810300575A CN101533938B CN 101533938 B CN101533938 B CN 101533938B CN 200810300575X A CN200810300575X A CN 200810300575XA CN 200810300575 A CN200810300575 A CN 200810300575A CN 101533938 B CN101533938 B CN 101533938B
- Authority
- CN
- China
- Prior art keywords
- transmission line
- low
- pass filter
- low esr
- impedance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/203—Strip line filters
- H01P1/2039—Galvanic coupling between Input/Output
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/203—Strip line filters
- H01P1/20327—Electromagnetic interstage coupling
- H01P1/20336—Comb or interdigital filters
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Filters And Equalizers (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
Description
Claims (6)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200810300575XA CN101533938B (zh) | 2008-03-14 | 2008-03-14 | 低通滤波器 |
US12/193,776 US8008996B2 (en) | 2008-03-14 | 2008-08-19 | Low-pass filter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200810300575XA CN101533938B (zh) | 2008-03-14 | 2008-03-14 | 低通滤波器 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101533938A CN101533938A (zh) | 2009-09-16 |
CN101533938B true CN101533938B (zh) | 2012-06-20 |
Family
ID=41062390
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN200810300575XA Expired - Fee Related CN101533938B (zh) | 2008-03-14 | 2008-03-14 | 低通滤波器 |
Country Status (2)
Country | Link |
---|---|
US (1) | US8008996B2 (zh) |
CN (1) | CN101533938B (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107492703A (zh) * | 2017-07-06 | 2017-12-19 | 清华大学 | 内嵌式微带谐振器、宽抑制滤波器及其设计方法 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106445101A (zh) | 2015-08-07 | 2017-02-22 | 飞比特公司 | 识别用户的方法和系统 |
US10624561B2 (en) | 2017-04-12 | 2020-04-21 | Fitbit, Inc. | User identification by biometric monitoring device |
EP3451440A1 (en) * | 2017-09-01 | 2019-03-06 | Nokia Technologies Oy | Radiofrequency filter |
CN109803485A (zh) * | 2019-01-11 | 2019-05-24 | 张家港保税区灿勤科技有限公司 | 可改善远端抑制的低通电路、印制电路板以及介质波导滤波器 |
US11289789B1 (en) * | 2020-07-08 | 2022-03-29 | United States Of America As Represented By The Administrator Of Nasa | Bandpass filter using triangular patch resonators |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5485131A (en) * | 1994-10-13 | 1996-01-16 | Motorola, Inc. | Transmission line filter for MIC and MMIC applications |
US6504452B2 (en) * | 2000-05-22 | 2003-01-07 | Murata Manufacturing Co., Ltd. | Low-pass filter and mobile communication device using the same |
TW200514350A (en) * | 2003-10-08 | 2005-04-16 | Samsung Electro Mech | Laminated low pass filter |
CN101055934A (zh) * | 2006-04-12 | 2007-10-17 | 鸿富锦精密工业(深圳)有限公司 | 双传输零点低通滤波器 |
CN101114726A (zh) * | 2006-07-28 | 2008-01-30 | 鸿富锦精密工业(深圳)有限公司 | 滤波器 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI299233B (en) * | 2005-10-21 | 2008-07-21 | Hon Hai Prec Ind Co Ltd | Low-pass filter |
TWI323051B (en) * | 2006-04-07 | 2010-04-01 | Hon Hai Prec Ind Co Ltd | Dual zero points low-pass filter |
TWI320244B (en) | 2006-07-28 | 2010-02-01 | Filter | |
CN101540426B (zh) * | 2008-03-18 | 2013-01-09 | 鸿富锦精密工业(深圳)有限公司 | 低通滤波器 |
-
2008
- 2008-03-14 CN CN200810300575XA patent/CN101533938B/zh not_active Expired - Fee Related
- 2008-08-19 US US12/193,776 patent/US8008996B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5485131A (en) * | 1994-10-13 | 1996-01-16 | Motorola, Inc. | Transmission line filter for MIC and MMIC applications |
US6504452B2 (en) * | 2000-05-22 | 2003-01-07 | Murata Manufacturing Co., Ltd. | Low-pass filter and mobile communication device using the same |
TW200514350A (en) * | 2003-10-08 | 2005-04-16 | Samsung Electro Mech | Laminated low pass filter |
CN101055934A (zh) * | 2006-04-12 | 2007-10-17 | 鸿富锦精密工业(深圳)有限公司 | 双传输零点低通滤波器 |
CN101114726A (zh) * | 2006-07-28 | 2008-01-30 | 鸿富锦精密工业(深圳)有限公司 | 滤波器 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107492703A (zh) * | 2017-07-06 | 2017-12-19 | 清华大学 | 内嵌式微带谐振器、宽抑制滤波器及其设计方法 |
CN107492703B (zh) * | 2017-07-06 | 2019-09-20 | 清华大学 | 内嵌式微带谐振器、宽抑制滤波器及其设计方法 |
Also Published As
Publication number | Publication date |
---|---|
CN101533938A (zh) | 2009-09-16 |
US8008996B2 (en) | 2011-08-30 |
US20090231063A1 (en) | 2009-09-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20180226 Address after: The Guangxi Zhuang Autonomous Region Nanning hi tech Zone headquarters Road No. 18, China ASEAN enterprise headquarters base three 5# workshop Patentee after: NANNING FUGUI PRECISION INDUSTRIAL CO., LTD. Address before: 518109 Guangdong city of Shenzhen province Baoan District Longhua Town Industrial Zone tabulaeformis tenth East Ring Road No. 2 two Co-patentee before: Hon Hai Precision Industry Co., Ltd. Patentee before: Hongfujin Precise Industry (Shenzhen) Co., Ltd. |
|
TR01 | Transfer of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120620 Termination date: 20190314 |
|
CF01 | Termination of patent right due to non-payment of annual fee |