SG191866A1 - Filter circuit - Google Patents

Filter circuit

Info

Publication number
SG191866A1
SG191866A1 SG2013052055A SG2013052055A SG191866A1 SG 191866 A1 SG191866 A1 SG 191866A1 SG 2013052055 A SG2013052055 A SG 2013052055A SG 2013052055 A SG2013052055 A SG 2013052055A SG 191866 A1 SG191866 A1 SG 191866A1
Authority
SG
Singapore
Prior art keywords
filter circuit
filter
saw filter
lightweight
filters
Prior art date
Application number
SG2013052055A
Inventor
Beng Chuan Ng
Original Assignee
Epcos Ag
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 Epcos Ag filed Critical Epcos Ag
Priority to PCT/EP2011/051485 priority Critical patent/WO2012103943A1/en
Publication of SG191866A1 publication Critical patent/SG191866A1/en

Links

Classifications

    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46Filters
    • H03H9/64Filters using surface acoustic waves
    • H03H9/6423Means for obtaining a particular transfer characteristic
    • H03H9/6433Coupled resonator filters
    • H03H9/644Coupled resonator filters having two acoustic tracks
    • H03H9/6456Coupled resonator filters having two acoustic tracks being electrically coupled
    • H03H9/6469Coupled resonator filters having two acoustic tracks being electrically coupled via two connecting electrodes
    • H03H9/6476Coupled resonator filters having two acoustic tracks being electrically coupled via two connecting electrodes the tracks being electrically parallel

Abstract

A lightweight and low-cost filter circuit with small spatial dimensions is provided. The filter circuit comprises a first SAW filter and a double hump SAW filter, both filters being electrically connected in parallel.
SG2013052055A 2011-02-02 2011-02-02 Filter circuit SG191866A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2011/051485 WO2012103943A1 (en) 2011-02-02 2011-02-02 Filter circuit

Publications (1)

Publication Number Publication Date
SG191866A1 true SG191866A1 (en) 2013-08-30

Family

ID=44625099

Family Applications (1)

Application Number Title Priority Date Filing Date
SG2013052055A SG191866A1 (en) 2011-02-02 2011-02-02 Filter circuit

Country Status (2)

Country Link
SG (1) SG191866A1 (en)
WO (1) WO2012103943A1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3001350B2 (en) * 1993-05-19 2000-01-24 日本電気株式会社 Surface acoustic wave filter
JP3478264B2 (en) * 2000-03-10 2003-12-15 株式会社村田製作所 Surface acoustic wave device

Also Published As

Publication number Publication date
WO2012103943A1 (en) 2012-08-09

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