JPS57106209A - Bridge t trap circuit - Google Patents

Bridge t trap circuit

Info

Publication number
JPS57106209A
JPS57106209A JP18303380A JP18303380A JPS57106209A JP S57106209 A JPS57106209 A JP S57106209A JP 18303380 A JP18303380 A JP 18303380A JP 18303380 A JP18303380 A JP 18303380A JP S57106209 A JPS57106209 A JP S57106209A
Authority
JP
Japan
Prior art keywords
capacitor
resistance
circuit
bridge
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.)
Pending
Application number
JP18303380A
Other languages
Japanese (ja)
Inventor
Seiichi Nishimura
Takayoshi Ishikawa
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 JP18303380A priority Critical patent/JPS57106209A/en
Publication of JPS57106209A publication Critical patent/JPS57106209A/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
    • H03H7/06—Frequency selective two-port networks including resistors
    • H03H7/07—Bridged T-filters
    • 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

Abstract

PURPOSE:To improve the bounce characteristics, by constituting the impedance side, which connects a signal input terminal and a signal output terminal, with a series circuit of a resistance and a capacitor in the bridge T trap. CONSTITUTION:The impedance side which connects a signal input terminal 5 and a signal output terminal 6 of a bridge T trap circuit consists of the series circuit of a resistance 8 and a capacitor 7. In respect to a capacity value C of capacitors 9 and 10 and a resistance value R of the resistance 8, respective constants are determined to satisfy omega<2>C<2>R<2<4. In this case, a maximum attenuation quantity of this circuit is different from that of a circuit, which has no capacitor, by the impedance of the capacitor 7. As a result, the attenuation is improved specially in the lower side of the resonance frequency.
JP18303380A 1980-12-23 1980-12-23 Bridge t trap circuit Pending JPS57106209A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18303380A JPS57106209A (en) 1980-12-23 1980-12-23 Bridge t trap circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18303380A JPS57106209A (en) 1980-12-23 1980-12-23 Bridge t trap circuit

Publications (1)

Publication Number Publication Date
JPS57106209A true JPS57106209A (en) 1982-07-02

Family

ID=16128556

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18303380A Pending JPS57106209A (en) 1980-12-23 1980-12-23 Bridge t trap circuit

Country Status (1)

Country Link
JP (1) JPS57106209A (en)

Similar Documents

Publication Publication Date Title
JPS5647116A (en) Surface elastic wave device
JPS57106209A (en) Bridge t trap circuit
JPS56134815A (en) Filter circuit
JPS562673A (en) Optical receiver circuit
JPS57101416A (en) Variable tuner
JPS6478001A (en) Polarization circuit for dielectric filter
JPS56110406A (en) Filter device for electric vehicle
JPS55105428A (en) Matching method for elastic surface wave element
JPS56153257A (en) Voltage dividing circuit for measurement of high voltage
JPS5595495A (en) Speaker
SU729816A1 (en) Band-pass piezoelectric filter
JPS55149517A (en) Amplitude variable filter
JPS57147310A (en) Variable attenuating circuit
JPS5757018A (en) Surface acoustic wave filter
JPS5487046A (en) Band pass filter with trap
JPS56103516A (en) Variable attenuating circuit
JPS5726905A (en) Fm demodulation circuit
JPS5696520A (en) Selective amplifier
GB990298A (en) Improvements in or relating to electro-mechanical filters
JPS56158526A (en) Parallel tuning circuit for switched capacitor
JPS5520079A (en) Frequency selection circuit
JPS56141613A (en) Surface wave equipment
JPS57211881A (en) Tone detector
JPS57193111A (en) Filter circuit
JPS52125222A (en) Tuning circuit