JPS56128007A - Low-pass filter - Google Patents

Low-pass filter

Info

Publication number
JPS56128007A
JPS56128007A JP3142780A JP3142780A JPS56128007A JP S56128007 A JPS56128007 A JP S56128007A JP 3142780 A JP3142780 A JP 3142780A JP 3142780 A JP3142780 A JP 3142780A JP S56128007 A JPS56128007 A JP S56128007A
Authority
JP
Japan
Prior art keywords
inductance
low
pass filter
capacitor
lead
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
JP3142780A
Other languages
Japanese (ja)
Inventor
Tsugio Takahashi
Shigeo Fushimi
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP3142780A priority Critical patent/JPS56128007A/en
Publication of JPS56128007A publication Critical patent/JPS56128007A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/17—Structural details of sub-circuits of frequency selective networks
    • H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
    • H03H7/175—Series LC in series path
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/09—Filters comprising mutual inductance
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/17—Structural details of sub-circuits of frequency selective networks
    • H03H7/1716—Comprising foot-point elements
    • H03H7/1725—Element to ground being common to different shunt paths, i.e. Y-structure
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/17—Structural details of sub-circuits of frequency selective networks
    • H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
    • H03H7/1758—Series LC in shunt or branch path

Landscapes

  • Filters And Equalizers (AREA)

Abstract

PURPOSE:To constitute a low-pass filter so as not to be influenced by the lead inductance, by negating the lead inductance of a capacitor of the T-type circuit by means of the mutual inductance of coils. CONSTITUTION:In a low-pass filter, two coils of 1 and 2 of the symmetrical T-type circuit are electromagnetically coupled to each other. When this mutual inductance is made to correspond with the lead inductance l5 and is equivalently connected in series with the capacitor 3, since the polarity of the mutual inductance 5 is negative, the lead inductance 4 of the capacitor 3 is negated by the mutual inductance 5.
JP3142780A 1980-03-11 1980-03-11 Low-pass filter Pending JPS56128007A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3142780A JPS56128007A (en) 1980-03-11 1980-03-11 Low-pass filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3142780A JPS56128007A (en) 1980-03-11 1980-03-11 Low-pass filter

Publications (1)

Publication Number Publication Date
JPS56128007A true JPS56128007A (en) 1981-10-07

Family

ID=12330935

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3142780A Pending JPS56128007A (en) 1980-03-11 1980-03-11 Low-pass filter

Country Status (1)

Country Link
JP (1) JPS56128007A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016170708A1 (en) * 2015-04-20 2016-10-27 株式会社村田製作所 Circuit board and filter circuit using same
WO2017017987A1 (en) * 2015-07-28 2017-02-02 株式会社村田製作所 Circuit board, filter circuit using same, and capacitance element
JP2021010112A (en) * 2019-07-01 2021-01-28 株式会社村田製作所 Bias T circuit and power superimposition circuit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016170708A1 (en) * 2015-04-20 2016-10-27 株式会社村田製作所 Circuit board and filter circuit using same
WO2017017987A1 (en) * 2015-07-28 2017-02-02 株式会社村田製作所 Circuit board, filter circuit using same, and capacitance element
JPWO2017017987A1 (en) * 2015-07-28 2017-12-14 株式会社村田製作所 Circuit board, filter circuit using the same, and capacitance element
US10382000B2 (en) 2015-07-28 2019-08-13 Murata Manufacturing Co., Ltd. Circuit board, filter circuit using the same, and capacitance element
JP2021010112A (en) * 2019-07-01 2021-01-28 株式会社村田製作所 Bias T circuit and power superimposition circuit

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