JPS641304A - Band-pass filter - Google Patents
Band-pass filterInfo
- Publication number
- JPS641304A JPS641304A JP15681587A JP15681587A JPS641304A JP S641304 A JPS641304 A JP S641304A JP 15681587 A JP15681587 A JP 15681587A JP 15681587 A JP15681587 A JP 15681587A JP S641304 A JPS641304 A JP S641304A
- Authority
- JP
- Japan
- Prior art keywords
- resonators
- band
- inter
- degree
- coupling
- 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.)
- Pending
Links
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
PURPOSE: To change the passing band width of a band-pass filter without a change of shape, by changing the relative angle between resonators.
CONSTITUTION: A desired band pass-filter can be realized by means of capacitors 13 and 14 for coupling input-output, split-ring resonators 15 and 16 and a degree of inter-stage coupling k12. The degree of inter-stage coupling k12 is adjusted to a desired value by changing the relative angle between the resonators 15 and 16. In the split-ring resonators 15 and 16, the most intense electric fields and lowest magnetic fields are produced at the connecting ends of capacity elements 17 and 18, whereas the weakest electric fields and highest magnetic fields are produced at the sections which are farthest from the elements 17 and 18. Therefore, when the relative angle between the resonators 15 and 16 is changed, the degree of inter-stage coupling between the resonators 15 and 16 can be changed even if the interval between the resonators is kept constantly. When the capacity values of the capacitors 13 and 14 for coupling input-output are adjusted in accordance with the degree of inter-stage coupling, band-pass filters having different passing band widths of the same shape can be realized.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62-156815A JPH011304A (en) | 1987-06-24 | How to adjust the bandpass width of a bandpass filter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62-156815A JPH011304A (en) | 1987-06-24 | How to adjust the bandpass width of a bandpass filter |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS641304A true JPS641304A (en) | 1989-01-05 |
JPH011304A JPH011304A (en) | 1989-01-05 |
Family
ID=
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06500442A (en) * | 1990-08-06 | 1994-01-13 | モトローラ・インコーポレイテッド | Split ring resonator bandpass filter with differential output |
US6239674B1 (en) * | 1993-12-27 | 2001-05-29 | Matsushita Electric Industrial Co., Ltd | Elliptical resonator with an input/output capacitive gap |
DE102008016294A1 (en) * | 2008-03-28 | 2009-10-01 | Dritte Patentportfolio Beteiligungsgesellschaft Mbh & Co.Kg | Manufacturing method for a surface sensor, system and use of a surface sensor |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5068448A (en) * | 1973-10-17 | 1975-06-07 | ||
JPS52104033A (en) * | 1976-02-26 | 1977-09-01 | Matsushita Electric Ind Co Ltd | Electronic tuning circuit |
JPS58139502A (en) * | 1982-02-15 | 1983-08-18 | Anritsu Corp | Resonator |
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5068448A (en) * | 1973-10-17 | 1975-06-07 | ||
JPS52104033A (en) * | 1976-02-26 | 1977-09-01 | Matsushita Electric Ind Co Ltd | Electronic tuning circuit |
JPS58139502A (en) * | 1982-02-15 | 1983-08-18 | Anritsu Corp | Resonator |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06500442A (en) * | 1990-08-06 | 1994-01-13 | モトローラ・インコーポレイテッド | Split ring resonator bandpass filter with differential output |
US6239674B1 (en) * | 1993-12-27 | 2001-05-29 | Matsushita Electric Industrial Co., Ltd | Elliptical resonator with an input/output capacitive gap |
DE102008016294A1 (en) * | 2008-03-28 | 2009-10-01 | Dritte Patentportfolio Beteiligungsgesellschaft Mbh & Co.Kg | Manufacturing method for a surface sensor, system and use of a surface sensor |
US8097854B2 (en) | 2008-03-28 | 2012-01-17 | Dritte Patentportfolio Beteiligungsgesellschaft Mbh & Co. Kg | Production method for a surface sensor, system and use of a surface sensor |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0855757A3 (en) | Dielectric filter and dielectric duplexer | |
JPS5679502A (en) | Band block filter and antenna duplexer | |
DE69532900D1 (en) | Filter with concentrated elements | |
CA2048404A1 (en) | Dual-mode filters using dielectric resonators with apertures | |
MXPA03010619A (en) | Diplex circuit forming bandstop filter. | |
FI946115A0 (en) | Transmagnetic dielectric dual-mode resonator and this utilizing high-frequency band-pass filter | |
EP0429067A3 (en) | Band-pass filter using microstrip lines and filter characteristic adjusting method thereof | |
ATE22668T1 (en) | FILTERS WITH TWO DIFFERENT FILTER CONSTRUCTIONS. | |
CA2046446A1 (en) | Integrated bandpass/lowpass filter | |
CA2126468A1 (en) | Planar Multi-Resonator Bandpass Filter | |
WO2002037675A8 (en) | Filtering method and filter | |
AU556700B2 (en) | Stub type bandpass filter | |
ES293270U (en) | Pluricavities microwave filters. | |
CA2089155A1 (en) | Multi-stage monolithic ceramic bandstop filter with isolated filter stages | |
JPS641304A (en) | Band-pass filter | |
CA2270616A1 (en) | A microwave diplexer arrangement | |
EP0343835A3 (en) | Magnetically tuneable wave bandpass filter | |
EP0738020A4 (en) | Dual tm-mode dielectric resonator apparatus equipped with window for electromagnetic field coupling, and band-pass filter apparatus equipped with the dielectric resonator apparatus | |
EP0650255A4 (en) | Piezoelectric ceramic filter circuit and piezoelectric ceramic filter. | |
JPS56134815A (en) | Filter circuit | |
Plett | Continuous-time filters using open loop tunable transconductance amplifiers. | |
JPS5643801A (en) | Band-pass filter | |
AU2171192A (en) | Microwave filter fabrication method and filters therefrom | |
EP0375016A3 (en) | Microwave comb-line band-pass filters | |
JPS641309A (en) | Resonator |