IN2014KN02977A - - Google Patents
Info
- Publication number
- IN2014KN02977A IN2014KN02977A IN2977KON2014A IN2014KN02977A IN 2014KN02977 A IN2014KN02977 A IN 2014KN02977A IN 2977KON2014 A IN2977KON2014 A IN 2977KON2014A IN 2014KN02977 A IN2014KN02977 A IN 2014KN02977A
- Authority
- IN
- India
- Prior art keywords
- filter
- circuit design
- filter circuit
- create
- sections
- Prior art date
Links
- 238000000034 method Methods 0.000 abstract 3
- 230000003071 parasitic effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
- G06F30/36—Circuit design at the analogue level
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/25—Constructional features of resonators using surface acoustic waves
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/462—Microelectro-mechanical filters
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/462—Microelectro-mechanical filters
- H03H9/465—Microelectro-mechanical filters in combination with other electronic elements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
- H03H9/542—Filters comprising resonators of piezoelectric or electrostrictive material including passive elements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
- H03H9/56—Monolithic crystal filters
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
- H03H9/56—Monolithic crystal filters
- H03H9/566—Electric coupling means therefor
- H03H9/568—Electric coupling means therefor consisting of a ladder configuration
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
- H03H9/58—Multiple crystal filters
- H03H9/60—Electric coupling means therefor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
- H03H9/58—Multiple crystal filters
- H03H9/60—Electric coupling means therefor
- H03H9/605—Electric coupling means therefor consisting of a ladder configuration
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/64—Filters using surface acoustic waves
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/64—Filters using surface acoustic waves
- H03H9/6423—Means for obtaining a particular transfer characteristic
- H03H9/6433—Coupled resonator filters
- H03H9/6483—Ladder SAW filters
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H2260/00—Theory relating to impedance networks
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Theoretical Computer Science (AREA)
- Evolutionary Computation (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Geometry (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Abstract
A method of designing an acoustic microwave filter (100) comprises selecting a filter section based on frequency response requirements. The filter section includes an input (106), an output (108), and a plurality of circuit elements. The circuit elements have at least in line acoustic resonators (102a, 104a) or in shunt acoustic resonators (102b, 104b). The method further comprises selecting a value for each circuit element, selecting a number of filter sections, and cascading the selected number of filter sections to create a cascaded filter circuit design, such that at least one pair of immediately adjacent filter sections are connected to each other via their inputs or their outputs. The method further comprises adding parasitic effects to the cascaded filter circuit design to create a pre optimized filter circuit design, optimizing the pre-optimized filter circuit design to create a final filter circuit design, and constructing the acoustic microwave filter based on the final filter circuit design.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201361798482P | 2013-03-15 | 2013-03-15 | |
US13/934,051 US9325294B2 (en) | 2013-03-15 | 2013-07-02 | Microwave acoustic wave filters |
US13/939,065 US8701065B1 (en) | 2013-03-15 | 2013-07-10 | Microwave acoustic wave filters |
PCT/US2014/019091 WO2014149506A1 (en) | 2013-03-15 | 2014-02-27 | Improved design of microwave acoustic wave filters |
Publications (1)
Publication Number | Publication Date |
---|---|
IN2014KN02977A true IN2014KN02977A (en) | 2015-05-08 |
Family
ID=50441623
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IN2977KON2014 IN2014KN02977A (en) | 2013-03-15 | 2014-02-27 |
Country Status (8)
Country | Link |
---|---|
US (3) | US9325294B2 (en) |
JP (3) | JP5939696B2 (en) |
KR (2) | KR102001884B1 (en) |
CN (2) | CN107846203A (en) |
DE (1) | DE112014000126T5 (en) |
GB (1) | GB2518555A (en) |
IN (1) | IN2014KN02977A (en) |
WO (1) | WO2014149506A1 (en) |
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WO2019117106A1 (en) * | 2017-12-13 | 2019-06-20 | 株式会社村田製作所 | Filter device and multiplexer |
KR102066783B1 (en) | 2018-02-21 | 2020-01-15 | 전북대학교산학협력단 | Film bulk acoustic resonator improving performance of q-factor |
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-
2013
- 2013-07-02 US US13/934,051 patent/US9325294B2/en active Active
- 2013-07-10 US US13/939,065 patent/US8701065B1/en active Active
-
2014
- 2014-02-27 JP JP2015531356A patent/JP5939696B2/en active Active
- 2014-02-27 CN CN201711130193.2A patent/CN107846203A/en active Pending
- 2014-02-27 KR KR1020167037064A patent/KR102001884B1/en active IP Right Grant
- 2014-02-27 DE DE112014000126.0T patent/DE112014000126T5/en active Pending
- 2014-02-27 IN IN2977KON2014 patent/IN2014KN02977A/en unknown
- 2014-02-27 WO PCT/US2014/019091 patent/WO2014149506A1/en active Application Filing
- 2014-02-27 KR KR1020147037070A patent/KR101693269B1/en active IP Right Grant
- 2014-02-27 CN CN201480001750.9A patent/CN104412268B/en active Active
- 2014-02-27 GB GB1422760.7A patent/GB2518555A/en not_active Withdrawn
- 2014-03-13 US US14/209,551 patent/US20140320236A1/en not_active Abandoned
-
2016
- 2016-05-13 JP JP2016096698A patent/JP6179829B2/en active Active
-
2017
- 2017-07-06 JP JP2017132354A patent/JP2017201825A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
JP2017201825A (en) | 2017-11-09 |
US20140320236A1 (en) | 2014-10-30 |
US20140266510A1 (en) | 2014-09-18 |
JP2015536059A (en) | 2015-12-17 |
KR20170004039A (en) | 2017-01-10 |
KR101693269B1 (en) | 2017-01-06 |
US8701065B1 (en) | 2014-04-15 |
GB2518555A (en) | 2015-03-25 |
JP6179829B2 (en) | 2017-08-16 |
KR102001884B1 (en) | 2019-07-19 |
JP5939696B2 (en) | 2016-06-22 |
WO2014149506A1 (en) | 2014-09-25 |
US9325294B2 (en) | 2016-04-26 |
CN104412268A (en) | 2015-03-11 |
CN104412268B (en) | 2017-12-15 |
DE112014000126T5 (en) | 2015-02-26 |
JP2016181909A (en) | 2016-10-13 |
CN107846203A (en) | 2018-03-27 |
KR20150023561A (en) | 2015-03-05 |
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