KR20060120007A - 사다리형 필터, 무선 주파수 대역 통과 필터 및 무선주파수 수신기 및/또는 송신기 장치 - Google Patents
사다리형 필터, 무선 주파수 대역 통과 필터 및 무선주파수 수신기 및/또는 송신기 장치 Download PDFInfo
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- KR20060120007A KR20060120007A KR1020067006587A KR20067006587A KR20060120007A KR 20060120007 A KR20060120007 A KR 20060120007A KR 1020067006587 A KR1020067006587 A KR 1020067006587A KR 20067006587 A KR20067006587 A KR 20067006587A KR 20060120007 A KR20060120007 A KR 20060120007A
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- resonator
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- resonators
- filter
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/46—Filters
- H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
- H03H9/56—Monolithic crystal filters
- H03H9/564—Monolithic crystal filters implemented with thin-film techniques
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/46—Filters
- H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
- H03H9/56—Monolithic crystal filters
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
- H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
- H03H3/02—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; 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
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- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Abstract
Description
Claims (6)
- 복수의 벌크 탄성파 공진기를 포함하는 사다리형 필터에 있어서,각각의 상기 벌크 탄성파 공진기는 바닥 전극과 상부 전극 사이에 적어도 하나의 압전층을 포함하고,상기 복수의 공진기는 복수의 필터부 내에서 상기 필터의 입력 단자와 출력 단자 사이에 직렬로 놓인 복수의 직렬 공진기와, 2개의 상기 직렬 공진기의 접합부와 공통 단자 사이에 각각 접속된 하나 이상의 분권 공진기를 포함하며,상기 직렬 공진기는 상기 입력 단자에 접속된 입력 직렬 공진기와 상기 출력 단자에 접속된 출력 직렬 공진기를 포함하고,상기 분권 공진기는 동일한(unity) 가로 세로비를 만족하도록 설계되며,상기 직렬 공진기는 균일하지 않은 가로 세로비를 만족하도록 설계되는사다리형 필터.
- 제 1 항에 있어서,상기 필터부는 적어도 2개의 상기 직렬 공진기와 하나의 상기 분권 공진기를 포함하는사다리형 필터.
- 제 1 항에 있어서,상기 공통 단자 및 상기 입력 단자, 상기 출력 단자, 상기 공진기의 상기 상부 전극은 요구되는 상기 공진기의 폭 및 길이와 단자 크기를 가진 제 1 금속 패턴으로 배치되고,상기 공진기의 바닥 전극은 제 2 스태거된 팬형 금속 패턴으로 배치되되,상기 공진기의 영역은 각각의 제 1 및 제 2 금속 패턴의 중첩부에 의해 정의되는사다리형 필터.
- 제 3 항에 있어서,상기 직렬 공진기의 폭 wseries은 상기 분권 공진기의 폭 wshunt의 2/3이고, 상기 직렬 공진기의 길이 lseries는 상기 분권 공진기의 폭 wshunt의 1과 1/2인사다리형 필터.
- 제 1 항에 기재된 사다리형 필터를 포함하는 무선 주파수 대역 통과 필터.
- 제 5 항에 기재된 무선 주파수 대역 통과 필터를 포함하는 무선 주파수 수신기 및/또는 송신기 장치.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP03103695 | 2003-10-06 | ||
| EP03103695.7 | 2003-10-06 | ||
| PCT/IB2004/051851 WO2005034349A1 (en) | 2003-10-06 | 2004-09-24 | Ladder-type thin-film bulk acoustic wave filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20060120007A true KR20060120007A (ko) | 2006-11-24 |
| KR101323447B1 KR101323447B1 (ko) | 2013-10-29 |
Family
ID=34400560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020067006587A Expired - Fee Related KR101323447B1 (ko) | 2003-10-06 | 2004-09-24 | 사다리형 필터, 무선 주파수 대역 통과 필터, 무선 주파수 수신기 및 송신기 장치, 무선 주파수 수신기 장치 및 무선 주파수 송신기 장치 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US7474174B2 (ko) |
| EP (1) | EP1673860B1 (ko) |
| JP (1) | JP4719683B2 (ko) |
| KR (1) | KR101323447B1 (ko) |
| CN (1) | CN100492902C (ko) |
| AT (1) | ATE449457T1 (ko) |
| DE (1) | DE602004024224D1 (ko) |
| WO (1) | WO2005034349A1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12587168B2 (en) | 2021-12-29 | 2026-03-24 | Wipam, Inc. | Saw resonator design method, saw filter and design method therefor, and computing device-readable recording medium having same recorded thereon |
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2004
- 2004-09-24 KR KR1020067006587A patent/KR101323447B1/ko not_active Expired - Fee Related
- 2004-09-24 US US10/574,434 patent/US7474174B2/en not_active Expired - Lifetime
- 2004-09-24 AT AT04770075T patent/ATE449457T1/de not_active IP Right Cessation
- 2004-09-24 EP EP04770075A patent/EP1673860B1/en not_active Expired - Lifetime
- 2004-09-24 DE DE602004024224T patent/DE602004024224D1/de not_active Expired - Lifetime
- 2004-09-24 JP JP2006530915A patent/JP4719683B2/ja not_active Expired - Lifetime
- 2004-09-24 CN CNB2004800291463A patent/CN100492902C/zh not_active Expired - Fee Related
- 2004-09-24 WO PCT/IB2004/051851 patent/WO2005034349A1/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12587168B2 (en) | 2021-12-29 | 2026-03-24 | Wipam, Inc. | Saw resonator design method, saw filter and design method therefor, and computing device-readable recording medium having same recorded thereon |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE449457T1 (de) | 2009-12-15 |
| WO2005034349A1 (en) | 2005-04-14 |
| DE602004024224D1 (de) | 2009-12-31 |
| KR101323447B1 (ko) | 2013-10-29 |
| EP1673860B1 (en) | 2009-11-18 |
| US20070120624A1 (en) | 2007-05-31 |
| EP1673860A1 (en) | 2006-06-28 |
| CN1864328A (zh) | 2006-11-15 |
| JP2007507958A (ja) | 2007-03-29 |
| JP4719683B2 (ja) | 2011-07-06 |
| US7474174B2 (en) | 2009-01-06 |
| CN100492902C (zh) | 2009-05-27 |
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