JPS641304A - Band-pass filter - Google Patents

Band-pass filter

Info

Publication number
JPS641304A
JPS641304A JP62156815A JP15681587A JPS641304A JP S641304 A JPS641304 A JP S641304A JP 62156815 A JP62156815 A JP 62156815A 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
Application number
JP62156815A
Other languages
Japanese (ja)
Other versions
JPH011304A (en
Inventor
Morikazu Sagawa
Mitsuo Makimoto
Takumi Naruse
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62156815A priority Critical patent/JPS641304A/en
Publication of JPH011304A publication Critical patent/JPH011304A/en
Publication of JPS641304A publication Critical patent/JPS641304A/en
Pending legal-status Critical Current

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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
JP62156815A 1987-06-24 1987-06-24 Band-pass filter Pending JPS641304A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62156815A JPS641304A (en) 1987-06-24 1987-06-24 Band-pass filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62156815A JPS641304A (en) 1987-06-24 1987-06-24 Band-pass filter

Publications (2)

Publication Number Publication Date
JPH011304A JPH011304A (en) 1989-01-05
JPS641304A true JPS641304A (en) 1989-01-05

Family

ID=15635937

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62156815A Pending JPS641304A (en) 1987-06-24 1987-06-24 Band-pass filter

Country Status (1)

Country Link
JP (1) JPS641304A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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