JP2006229464A - フィルタ - Google Patents
フィルタ Download PDFInfo
- Publication number
- JP2006229464A JP2006229464A JP2005039458A JP2005039458A JP2006229464A JP 2006229464 A JP2006229464 A JP 2006229464A JP 2005039458 A JP2005039458 A JP 2005039458A JP 2005039458 A JP2005039458 A JP 2005039458A JP 2006229464 A JP2006229464 A JP 2006229464A
- Authority
- JP
- Japan
- Prior art keywords
- filter
- capacitor
- capacitor electrode
- electrode
- ground
- 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 124
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 3
- 230000032798 delamination Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 230000001413 cellular effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
Images
Classifications
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- 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
- H03H7/0115—Frequency selective two-port networks comprising only inductors and capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
- H01F17/0013—Printed inductances with stacked layers
-
- 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
- H03H7/1775—Parallel LC in shunt or branch path
-
- 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
- H03H7/1783—Combined LC in series path
-
- 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
- H03H7/42—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
- H01F17/0013—Printed inductances with stacked layers
- H01F2017/002—Details of via holes for interconnecting the layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
- H01F17/0013—Printed inductances with stacked layers
- H01F2017/0026—Multilayer LC-filter
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F21/00—Variable inductances or transformers of the signal type
- H01F21/12—Variable inductances or transformers of the signal type discontinuously variable, e.g. tapped
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H1/00—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
- H03H2001/0021—Constructional details
- H03H2001/0085—Multilayer, e.g. LTCC, HTCC, green sheets
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Filters And Equalizers (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
【解決手段】フィルタ100は、1つの不平衡入力端子10と、2つの平衡出力端子(第1及び第2の平衡出力端子12a及び12b)とを有し、第1の平衡出力端子12aとGND間にコンデンサC3aが接続され、第2の平衡出力端子12bとGND間にコンデンサC3bが接続され、さらに、第1及び第2の平衡出力端子12a及び12b間に第1のコイルL1が接続されている。
【選択図】図2
Description
12a…第1の平衡出力端子 12b…第2の平衡出力端子
16…基体 18…誘電体部
20…磁性体部 C3a、C3b…コンデンサ
Claims (6)
- 入力段と接地間にコンデンサが接続され、かつ、不平衡出力方式のフィルタにおいて、
前記コンデンサが2つのコンデンサに分割され、これら2つのコンデンサが、それぞれ対応する平衡入力端子と接地間に接続されていることを特徴とするフィルタ。 - 出力段と接地間にコンデンサが接続され、かつ、不平衡入力形式のフィルタにおいて、
前記コンデンサが2つのコンデンサに分割され、これら2つのコンデンサが、それぞれ対応する平衡出力端子と接地間に接続されていることを特徴とするフィルタ。 - 請求項1又は2記載のフィルタが誘電体部と磁性体部とが接合されてなる基体に形成されていることを特徴とするフィルタ。
- 請求項3記載のフィルタにおいて、
前記2つのコンデンサが少なくとも前記誘電体部に形成されていることを特徴とするフィルタ。 - 請求項4記載のフィルタにおいて、
前記誘電体部の第1の形成面に接地電極が形成され、
前記誘電体部の第2の形成面に前記2つのコンデンサを形成するための2つのコンデンサ電極が形成され、
前記接地電極と前記2つのコンデンサ電極とがそれぞれ対向していることを特徴とするフィルタ。 - 請求項1〜5のいずれか1項に記載のフィルタにおいて、
通過帯域が76〜108MHz、又はその一部の帯域であることを特徴とするフィルタ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005039458A JP4401981B2 (ja) | 2005-02-16 | 2005-02-16 | フィルタ |
US11/814,314 US7898362B2 (en) | 2005-02-16 | 2006-02-16 | Passband filter |
PCT/JP2006/302775 WO2006088111A1 (ja) | 2005-02-16 | 2006-02-16 | フィルタ |
CN2006800051878A CN101120506B (zh) | 2005-02-16 | 2006-02-16 | 滤波器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005039458A JP4401981B2 (ja) | 2005-02-16 | 2005-02-16 | フィルタ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006229464A true JP2006229464A (ja) | 2006-08-31 |
JP4401981B2 JP4401981B2 (ja) | 2010-01-20 |
Family
ID=36916512
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005039458A Expired - Fee Related JP4401981B2 (ja) | 2005-02-16 | 2005-02-16 | フィルタ |
Country Status (4)
Country | Link |
---|---|
US (1) | US7898362B2 (ja) |
JP (1) | JP4401981B2 (ja) |
CN (1) | CN101120506B (ja) |
WO (1) | WO2006088111A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8823468B2 (en) | 2010-10-21 | 2014-09-02 | Murata Manufacturing Co., Ltd. | Multilayer filter |
US11316492B2 (en) | 2018-04-23 | 2022-04-26 | Murata Manufacturing Co., Ltd. | Balun |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012072969A1 (en) * | 2010-11-29 | 2012-06-07 | The University Of Birmingham | Balanced antenna system |
JP5737304B2 (ja) * | 2013-01-18 | 2015-06-17 | 株式会社村田製作所 | フィルタ回路 |
JP6333153B2 (ja) * | 2014-10-28 | 2018-05-30 | 太陽誘電株式会社 | 複合回路、回路素子、回路基板、および通信装置 |
JP6696483B2 (ja) * | 2017-07-10 | 2020-05-20 | 株式会社村田製作所 | コイル部品 |
JP2021175151A (ja) | 2020-04-30 | 2021-11-01 | Tdk株式会社 | バンドパスフィルタ |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5869106A (ja) | 1981-10-20 | 1983-04-25 | Maspro Denkoh Corp | 分波器 |
JPS59223011A (ja) | 1983-06-01 | 1984-12-14 | Matsushita Electric Ind Co Ltd | 複合lcフイルタ |
JPS6376313A (ja) * | 1986-09-18 | 1988-04-06 | ティーディーケイ株式会社 | 積層lcフイルタ部品 |
JP3096169B2 (ja) | 1992-09-11 | 2000-10-10 | 株式会社日立製作所 | 半導体装置 |
JP2001060839A (ja) | 1999-08-19 | 2001-03-06 | Murata Mfg Co Ltd | 3端子フィルタ、受信モジュール及び携帯無線機 |
JP3800121B2 (ja) | 2001-04-19 | 2006-07-26 | 株式会社村田製作所 | 積層型バラントランス |
EP1265358A3 (en) * | 2001-05-25 | 2008-11-12 | Toko Kabushiki Kaisha | Laminated electronic component |
JP4710174B2 (ja) | 2001-06-13 | 2011-06-29 | 株式会社村田製作所 | バランス型lcフィルタ |
JP4612970B2 (ja) | 2001-07-24 | 2011-01-12 | 双信電機株式会社 | 積層電子部品 |
JP4784017B2 (ja) * | 2001-08-10 | 2011-09-28 | 株式会社村田製作所 | 積層型ローパスフィルタ |
JP2003115736A (ja) | 2001-10-05 | 2003-04-18 | Murata Mfg Co Ltd | 3分波・合波器 |
US6693499B2 (en) * | 2002-04-02 | 2004-02-17 | Northrop Grumman Corporation | Compact lumped element ring balun layout |
US6753745B2 (en) * | 2002-06-27 | 2004-06-22 | Harris Corporation | High efficiency four port circuit |
JP2004096388A (ja) | 2002-08-30 | 2004-03-25 | Matsushita Electric Ind Co Ltd | 高周波積層デバイス |
JP2004274715A (ja) * | 2003-02-20 | 2004-09-30 | Murata Mfg Co Ltd | 平衡不平衡変換回路および積層型平衡不平衡変換器 |
JP5060716B2 (ja) * | 2005-09-30 | 2012-10-31 | 双信電機株式会社 | 受動部品 |
-
2005
- 2005-02-16 JP JP2005039458A patent/JP4401981B2/ja not_active Expired - Fee Related
-
2006
- 2006-02-16 US US11/814,314 patent/US7898362B2/en not_active Expired - Fee Related
- 2006-02-16 WO PCT/JP2006/302775 patent/WO2006088111A1/ja active Application Filing
- 2006-02-16 CN CN2006800051878A patent/CN101120506B/zh not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8823468B2 (en) | 2010-10-21 | 2014-09-02 | Murata Manufacturing Co., Ltd. | Multilayer filter |
US11316492B2 (en) | 2018-04-23 | 2022-04-26 | Murata Manufacturing Co., Ltd. | Balun |
Also Published As
Publication number | Publication date |
---|---|
US20090079516A1 (en) | 2009-03-26 |
WO2006088111A1 (ja) | 2006-08-24 |
CN101120506A (zh) | 2008-02-06 |
US7898362B2 (en) | 2011-03-01 |
CN101120506B (zh) | 2010-10-27 |
JP4401981B2 (ja) | 2010-01-20 |
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