SG191866A1 - Filter circuit - Google Patents

Filter circuit


Publication number
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
Prior art keywords
filter circuit
saw filter
Prior art date
Application number
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



    • 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


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 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

Similar Documents

Publication Publication Date Title
HRP20180549T1 (en) Component carrier (de) activation in communication systems using carrier aggregation
HK1208163A1 (en) Drug-conjugates, conjugation methods, and uses thereof
HK1217263A1 (en) Discontinuous reception (drx) enhancements in lte systems lte (drx)
EP2985144A4 (en) Laminate, and element comprising substrate manufactured using same
EP3020253A4 (en) Intelligent device mode shifting based on activity
IL240636A (en) Social circles in social networks
EP2842375B8 (en) Maximum output power configuration with ue preference in carrier aggregation
HK1202211A1 (en) Adaptable wireless power, light and automation system
EP3028328A4 (en) Electro-synthetic or electro-energy cell with gas diffusion electrode(s)
EP3042513A4 (en) Interference coordination in dense small cells
AP201508386A0 (en) Amplifiers with shunt switches
EP2972048A4 (en) Energy exchange assembly with microporous membrane
EP3075186A4 (en) Coordination techniques for discontinuous reception (drx) operations in dual-connectivity architectures
TWI562142B (en) Storage element, storage device, and signal processing circuit
EP2818756B8 (en) Conveyor belt having opposing ends to be connected for endlessing the conveyor belt.
EP2953190A4 (en) Electrode precursor, electrode, and battery
EP3088224A4 (en) Battery frame, and vehicular battery mounting structure
EP3022794A4 (en) Printed silver oxide batteries
CA144913S (en) Aircraft
EP2658123A4 (en) Elastic wave device and method for manufacturing the same.
HUE036096T2 (en) Improving carrier aggregation performance
SG11201510587QA (en) Photovoltaic cell and laminate metallization
CA146763S (en) Lighting
BR112014010798A2 (en) structural adhesive, and laminated structure
EP2664183A4 (en) Measurement gap configuration in wireless communication systems with carrier aggregation