JPS6429001A - Band-pass filter - Google Patents

Band-pass filter

Info

Publication number
JPS6429001A
JPS6429001A JP18512587A JP18512587A JPS6429001A JP S6429001 A JPS6429001 A JP S6429001A JP 18512587 A JP18512587 A JP 18512587A JP 18512587 A JP18512587 A JP 18512587A JP S6429001 A JPS6429001 A JP S6429001A
Authority
JP
Japan
Prior art keywords
phase
coupled circuit
junction point
attenuation
indirect
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
JP18512587A
Other languages
Japanese (ja)
Inventor
Hiroshi Hatanaka
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.)
NIPPON DENGIYOU KOSAKU KK
Nihon Dengyo Kosaku Co Ltd
Original Assignee
NIPPON DENGIYOU KOSAKU KK
Nihon Dengyo Kosaku 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 NIPPON DENGIYOU KOSAKU KK, Nihon Dengyo Kosaku Co Ltd filed Critical NIPPON DENGIYOU KOSAKU KK
Priority to JP18512587A priority Critical patent/JPS6429001A/en
Publication of JPS6429001A publication Critical patent/JPS6429001A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To improve a group delay time characteristic by connecting plural stages of helical resonant elements through capacity elements for interstage coupling, and providing an indirect coupled circuit for attenuation pole formation, and at the same time, providing a coupled circuit for phase compensation. CONSTITUTION:In a polarized band-pass filter, the signal of attenuation area, which is transmitted from a branch junction point P1 through a main circuit, consisting of the helical resonant elements R2-R5, and arrives at the branch junction point P6, leads in its phase by 90 deg., and the signal of the attenuation area, which reaches the junction point P6 from the junction point P1 through the indirect coupled circuit for attenuation pole formation, consisting of induction element L16, is delayed in its phase by 90 deg.. Then, because the phase difference of 180 deg. is generated between both signals, by adjusting the degree of coupling of the indirect coupled circuit for attenuation pole formation and the main circuit, the amplitudes of both signals are formed so as to be equal to each other. Next, by selecting the capacities of capacity elements C25 and C52 to form an indirect coupled circuit for phase compensation and the induction of the inductance element L25, a phase characteristic in a passing band is linearized.
JP18512587A 1987-07-23 1987-07-23 Band-pass filter Pending JPS6429001A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18512587A JPS6429001A (en) 1987-07-23 1987-07-23 Band-pass filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18512587A JPS6429001A (en) 1987-07-23 1987-07-23 Band-pass filter

Publications (1)

Publication Number Publication Date
JPS6429001A true JPS6429001A (en) 1989-01-31

Family

ID=16165305

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18512587A Pending JPS6429001A (en) 1987-07-23 1987-07-23 Band-pass filter

Country Status (1)

Country Link
JP (1) JPS6429001A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008006882A (en) * 2006-06-27 2008-01-17 Toyota Motor Corp Spherical wheel driving mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008006882A (en) * 2006-06-27 2008-01-17 Toyota Motor Corp Spherical wheel driving mechanism

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