JPH09307315A - Irreversible circuit component - Google Patents
Irreversible circuit componentInfo
- Publication number
- JPH09307315A JPH09307315A JP11465596A JP11465596A JPH09307315A JP H09307315 A JPH09307315 A JP H09307315A JP 11465596 A JP11465596 A JP 11465596A JP 11465596 A JP11465596 A JP 11465596A JP H09307315 A JPH09307315 A JP H09307315A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- board
- circuit device
- ground
- electrode
- 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.)
- Pending
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- Non-Reversible Transmitting Devices (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、主としてマイクロ
波通信機器や移動体通信機器等に用いられる非可逆回路
素子に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nonreciprocal circuit device mainly used for microwave communication equipment, mobile communication equipment and the like.
【0002】[0002]
【従来の技術】従来、この種の非可逆回路素子の一例と
しては、例えば図3にその分解斜視図を示すようなもの
が挙げられる。2. Description of the Related Art Conventionally, as an example of this type of non-reciprocal circuit device, there is, for example, one shown in an exploded perspective view of FIG.
【0003】この非可逆回路素子は、整合容量105が
設けられると共に、アース電極109及び入出力電極1
10が形成されたアース基板104と、アース電極10
9及び入出力電極110が形成されると共に、整合容量
105に対応する位置に整合容量設置用凹部108が設
けられた電極基板103と、この電極基板103の中央
部に開口された丸穴に収納されるフェライト円板102
と、中心導体板101とをこの順で積層した積層体を所
定箇所にアース端子113及び入出力端子112が設け
られたケース111内に収納し、その上部からは円板状
の永久磁石板107及び上部磁性ヨーク106を被せ、
下部からは下部磁性ヨーク114を被せて構成される。This non-reciprocal circuit device is provided with a matching capacitor 105, a ground electrode 109 and an input / output electrode 1.
A grounding substrate 104 on which 10 is formed, and a grounding electrode 10
9 and an input / output electrode 110 are formed, and an electrode substrate 103 is provided with a matching capacitor setting concave portion 108 at a position corresponding to the matching capacitor 105, and is housed in a circular hole opened in the central portion of the electrode substrate 103. Ferrite disk 102
And a center conductor plate 101 are stacked in this order, and the laminated body is housed in a case 111 in which a ground terminal 113 and an input / output terminal 112 are provided at predetermined locations, and a disk-shaped permanent magnet plate 107 is provided from above. And the upper magnetic yoke 106,
The lower part is covered with a lower magnetic yoke 114.
【0004】このうち、電極基板103は中心導体板1
01とアース基板104とに所要の導通を得るために設
けられ、ケース111は必要個所の導通を確保できるよ
うにアース端子113及び入出力端子112が設けられ
ている。Of these, the electrode substrate 103 is the central conductor plate 1.
01 and the ground substrate 104 are provided in order to obtain required conduction, and the case 111 is provided with a ground terminal 113 and an input / output terminal 112 so as to ensure conduction at a necessary place.
【0005】この非可逆回路素子では、永久磁石板10
7と上部磁性ヨーク106及び下部磁性ヨーク114と
により閉磁路を成し、フェライト円板102及び中心導
体板101に直流磁界を印加するようになっている。In this nonreciprocal circuit device, the permanent magnet plate 10 is used.
7, the upper magnetic yoke 106 and the lower magnetic yoke 114 form a closed magnetic circuit, and a DC magnetic field is applied to the ferrite disk 102 and the central conductor plate 101.
【0006】[0006]
【発明が解決しようとする課題】上述した非可逆回路素
子の場合、開磁路における磁界の漏洩等により周辺部品
や周辺機器に悪影響を及ぼす危険があるため、これを防
止する上で上部磁性ヨーク及び下部磁性ヨークが必需と
なっており、又SMD方式(Subscriber M
ultiplexing Digital syste
m)への対応を計るためにケースには下部磁性ヨークの
厚さ分の高さを補ったSMD方式への対応用に入出力端
子及びアース端子が備えられる必要がある。In the case of the above-mentioned nonreciprocal circuit device, there is a risk that magnetic field leakage in the open magnetic circuit may adversely affect peripheral components and peripheral equipment. Therefore, in order to prevent this, the upper magnetic yoke is used. And the lower magnetic yoke are indispensable, and the SMD method (Subscriber M
ultiplexing Digital system
In order to comply with m), the case needs to be provided with an input / output terminal and a ground terminal for the SMD method in which the height corresponding to the thickness of the lower magnetic yoke is supplemented.
【0007】このため、従来の非可逆回路素子は部品点
数が多く、組み立てや製造に手間がかかってコスト高に
なり易いという問題がある。特に、SMD方式対応用に
入出力端子及びアース端子を備えたケースは構造が複雑
で割高な部品となっており、これが素子全体の低コスト
化を困難にしている。For this reason, the conventional non-reciprocal circuit device has a large number of parts, which requires a lot of trouble in assembling and manufacturing, and tends to increase the cost. In particular, a case provided with an input / output terminal and a ground terminal for the SMD system has a complicated structure and is an expensive component, which makes it difficult to reduce the cost of the entire device.
【0008】本発明は、このような問題点を解決すべく
なされたもので、その技術的課題は、部品点数が少なく
て組み立てや製造が容易であり、しかもSMD方式に対
応し得る小型低背で低コストな非可逆回路素子を提供す
ることにある。The present invention has been made to solve the above problems, and its technical problem is that the number of parts is small, the assembly and the manufacture are easy, and the small size and the low height are compatible with the SMD system. And to provide a low-cost non-reciprocal circuit device.
【0009】[0009]
【課題を解決するための手段】本発明によれば、アース
基板,フェライト板,及び中心導体板をこの順で積層し
て成る積層体を上部磁性ヨーク及び下部磁性ヨーク間に
挟み込んで構成されると共に、該上部磁性ヨーク側には
直流磁界を印加するための永久磁石板が介在された非可
逆回路素子において、アース基板は、磁性を有する絶縁
体に入出力電極及びアース電極が形成された絶縁抵抗が
大きな磁性絶縁基板から成ると共に、下部磁性ヨークを
代用する非可逆回路素子が得られる。According to the present invention, a laminated body in which a ground substrate, a ferrite plate, and a central conductor plate are laminated in this order is sandwiched between an upper magnetic yoke and a lower magnetic yoke. In addition, in the nonreciprocal circuit device in which a permanent magnet plate for applying a DC magnetic field is interposed on the upper magnetic yoke side, the ground substrate is an insulating member having a magnetic insulator and an input / output electrode and a ground electrode formed on the insulating substrate. A non-reciprocal circuit device can be obtained which is composed of a magnetic insulating substrate having a large resistance and which substitutes the lower magnetic yoke.
【0010】又、本発明によれば、上記非可逆回路素子
において、磁性絶縁基板の磁性材は、フェライト板のフ
ェライト材よりも大きい飽和磁束密度を持つと共に、使
用周波数近傍における透磁率が十分小さい非可逆回路素
子が得られる。Further, according to the present invention, in the nonreciprocal circuit device, the magnetic material of the magnetic insulating substrate has a saturation magnetic flux density higher than that of the ferrite material of the ferrite plate and has a sufficiently small magnetic permeability in the vicinity of the operating frequency. A non-reciprocal circuit device is obtained.
【0011】更に、本発明によれば、上記何れかの非可
逆回路素子において、磁性絶縁基板上には入出力電極及
びアース電極が形成されると共に、中央部がフェライト
板を収納可能に開口された電極基板を積層して成る非可
逆回路素子が得られる。Further, according to the present invention, in any of the nonreciprocal circuit devices described above, an input / output electrode and a ground electrode are formed on the magnetic insulating substrate, and a central portion is opened to accommodate a ferrite plate. A non-reciprocal circuit device is obtained by stacking the above electrode substrates.
【0012】[0012]
【発明の実施の形態】以下に実施例を挙げ、本発明の非
可逆回路素子について、図面を参照して詳細に説明す
る。BEST MODE FOR CARRYING OUT THE INVENTION The nonreciprocal circuit device of the present invention will be described below in detail with reference to the drawings.
【0013】図1は、本発明の一実施例に係る非可逆回
路素子の基本構成を分解斜視図により示したものであ
る。この非可逆回路素子は、整合容量5が設けられると
共に、磁性を有する絶縁体にアース電極9,13及び入
出力電極12が形成されたアース基板としての磁性絶縁
基板4と、アース電極9及び入出力電極10が形成され
ると共に、整合容量5に対応する位置に整合容量設置用
凹部8が設けられた電極基板3と、この電極基板3の中
央部に開口された丸穴に収納されるフェライト円板2
と、中心導体板1とをこの順で積層した積層体の上部に
円板状の永久磁石板7及び上部磁性ヨーク6を被せて構
成される。この状態で磁気回路を構成する上部磁性ヨー
ク6がその下部の磁性絶縁基板4のアース電極13(但
し、アース電極9が板面に設けられているのに対し、ア
ース電極13は板周縁端面に設けられている)に密着さ
れるようになっている。FIG. 1 is an exploded perspective view showing the basic structure of a nonreciprocal circuit device according to an embodiment of the present invention. This non-reciprocal circuit device is provided with a matching capacitor 5 and a magnetic insulating substrate 4 serving as a grounding substrate in which grounding electrodes 9 and 13 and an input / output electrode 12 are formed on a magnetic insulator, a grounding electrode 9 and an input electrode 9. The output substrate 10 is formed, and the electrode substrate 3 is provided with the matching capacitor setting concave portion 8 at a position corresponding to the matching capacitor 5, and the ferrite accommodated in the circular hole opened in the central portion of the electrode substrate 3. Disk 2
And a central conductor plate 1 are laminated in this order, and a disk-shaped permanent magnet plate 7 and an upper magnetic yoke 6 are covered on the upper part of the laminated body. In this state, the upper magnetic yoke 6 constituting the magnetic circuit is provided with the ground electrode 13 (however, the ground electrode 9 is provided on the plate surface of the magnetic insulating substrate 4 therebelow, while the ground electrode 13 is provided on the plate peripheral edge surface). (Provided) to be closely attached.
【0014】ここで磁性絶縁基板4は、従来の下部磁性
ヨークを代用する絶縁抵抗が大きなもので、その磁性材
はフェライト円板2のフェライト材よりも大きい飽和磁
束密度を持つと共に、使用周波数近傍(例えば1.5G
Hz近傍)における透磁率μが十分小さくなっており、
透磁率μが最大となる周波数fr を使用周波数よりも十
分小さくしている。例えばアース電極9,13及び入出
力電極12を備えた磁性絶縁基板4としては、絶縁抵抗
1×106 Ω/m,飽和磁束密度2000Gauss,
磁性材として周波数1000MHzにおける透磁率μが
10以下のNi−Zn系フェライトを用いる場合を例示
できる。Here, the magnetic insulating substrate 4 has a large insulation resistance in place of the conventional lower magnetic yoke, and the magnetic material thereof has a saturation magnetic flux density higher than that of the ferrite material of the ferrite disk 2 and near the operating frequency. (For example, 1.5G
Permeability μ around (Hz) is sufficiently small,
The frequency f r at which the magnetic permeability μ is maximum is set sufficiently smaller than the operating frequency. For example, as the magnetic insulating substrate 4 provided with the ground electrodes 9 and 13 and the input / output electrode 12, the insulation resistance is 1 × 10 6 Ω / m, the saturation magnetic flux density is 2000 Gauss,
An example is the case where a Ni—Zn ferrite having a magnetic permeability μ at a frequency of 1000 MHz is 10 or less is used as the magnetic material.
【0015】図2は、この磁性絶縁基板4の磁性材に関
する周波数fに対する動的透磁率μ(=μr ’+i
μr ”)の特性を示したものである。ここでは初期透磁
率μiを含む真数部μr ’に関する曲線C1と虚数部μ
r ”(通常磁気損失に関与する)に関する曲線C2とが
示されているが、曲線C2に留意すれば、使用中心周波
数f0 に対して透磁率μが最大となる周波数fr が十分
小さくなっていることが判る。従って、この磁性絶縁基
板4は動作周波数である高周波帯域では実質的に非磁性
体として振る舞い、回路素子の損失に対する悪影響は回
避される。FIG. 2 shows the dynamic magnetic permeability μ (= μ r '+ i) with respect to the frequency f of the magnetic material of the magnetic insulating substrate 4.
μ r ″). Here, the curve C1 and the imaginary part μ relating to the true part μ r 'including the initial permeability μ i are shown.
A curve C2 relating to r ″ (normally involved in magnetic loss) is shown. However, if the curve C2 is noted, the frequency f r at which the magnetic permeability μ becomes maximum with respect to the use center frequency f 0 becomes sufficiently small. Therefore, the magnetic insulating substrate 4 behaves substantially as a non-magnetic material in the high frequency band which is the operating frequency, and the adverse effect on the loss of the circuit element is avoided.
【0016】即ち、この非可逆回路素子の場合、従来必
要とされた入出力端子及びアース端子を備えたケースと
下部磁性ヨークとに代え、磁性を有する絶縁体にアース
電極9,13及び入出力電極10が形成されると共に、
下部磁性ヨークを代用する絶縁抵抗が大きな磁性絶縁基
板4を整合容量用板として用いている。これより、従来
よりも下部磁性ヨーク及びケースの分の部品点数が削減
され、簡素に小型低背で構成されてSMD方式にも対応
可能になっている。That is, in the case of this non-reciprocal circuit device, instead of the case provided with the input / output terminal and the ground terminal, which are conventionally required, and the lower magnetic yoke, the magnetic electrodes are connected to the ground electrodes 9 and 13 and the input / output. With the electrode 10 formed,
The magnetic insulating substrate 4 having a large insulation resistance, which substitutes the lower magnetic yoke, is used as a matching capacitance plate. As a result, the number of parts corresponding to the lower magnetic yoke and the case is reduced as compared with the related art, and the structure is simply small and low-profile, and the SMD system can be supported.
【0017】[0017]
【発明の効果】以上に述べた通り、本発明の非可逆回路
素子によれば、従来必要とされた入出力端子及びアース
端子を備えたケースと下部磁性ヨークとに代え、磁性を
有する絶縁体にアース電極及び入出力電極が形成される
と共に、下部磁性ヨークを代用する絶縁抵抗が大きな磁
性絶縁基板をアース基板として用いているので、部品点
数が削減されて簡素に小型低背で構成され、自動組立の
工数が改善されて低コスト化が具現されると共に、SM
D方式にも対応可能になる。又、磁性絶縁基板の磁性材
をフェライト円板のフェライト材よりも大きい飽和磁束
密度を持ち、使用周波数近傍における透磁率を十分小さ
いものとして回路素子の損失に対する悪影響を回避して
いるので、マイクロ波通信機器や移動体通信機器等への
適用が有効になる。As described above, according to the nonreciprocal circuit device of the present invention, an insulator having magnetism is used instead of the case having the input / output terminal and the ground terminal and the lower magnetic yoke which are conventionally required. Since the ground electrode and the input / output electrode are formed on, and the lower magnetic yoke is used as a substitute for the magnetic insulating substrate having a large insulation resistance as the ground substrate, the number of parts is reduced, and it is simply configured with a small and low profile. The number of man-hours for automatic assembly is improved to realize cost reduction and SM
It is also possible to support the D method. In addition, the magnetic material of the magnetic insulating substrate has a saturation magnetic flux density higher than that of the ferrite material of the ferrite disk, and the permeability in the vicinity of the operating frequency is sufficiently small to avoid the adverse effect on the loss of the circuit element. Application to communication equipment and mobile communication equipment becomes effective.
【図1】本発明の一実施例に係る非可逆回路素子の基本
構成を分解斜視図により示したものである。FIG. 1 is an exploded perspective view showing a basic configuration of a non-reciprocal circuit device according to an embodiment of the present invention.
【図2】図1に示す非可逆回路素子に用いられる磁性絶
縁基板の磁性材に関する周波数に対する透磁率の特性を
示したものである。2 shows characteristics of magnetic permeability with respect to frequency regarding a magnetic material of a magnetic insulating substrate used in the nonreciprocal circuit device shown in FIG.
【図3】従来の非可逆回路素子の基本構成を分解斜視図
により示したものである。FIG. 3 is an exploded perspective view showing a basic configuration of a conventional non-reciprocal circuit device.
1,101 中心導体板 2,102 フェライト円板 3,103 電極基板 4 磁性絶縁基板(アース基板) 5,105 整合容量 6,106 上部磁性ヨーク 7,107 永久磁石板 8,108 整合容量設置用凹部 9,109,,13 アース電極 10,110,12 入出力電極 104 アース基板 112 入出力端子 113 アース端子 114 下部磁性ヨーク 1, 101 central conductor plate 2, 102 ferrite disk 3, 103 electrode substrate 4 magnetic insulating substrate (earth substrate) 5, 105 matching capacitance 6, 106 upper magnetic yoke 7, 107 permanent magnet plate 8, 108 recess for matching capacitance setting 9, 109, 13, ground electrode 10, 110, 12 input / output electrode 104 ground substrate 112 input / output terminal 113 ground terminal 114 lower magnetic yoke
Claims (3)
体板をこの順で積層して成る積層体を上部磁性ヨーク及
び下部磁性ヨーク間に挟み込んで構成されると共に、該
上部磁性ヨーク側には直流磁界を印加するための永久磁
石板が介在された非可逆回路素子において、前記アース
基板は、磁性を有する絶縁体に入出力電極及びアース電
極が形成された絶縁抵抗が大きな磁性絶縁基板から成る
と共に、前記下部磁性ヨークを代用するものであること
を特徴とする非可逆回路素子。1. A grounded body, a ferrite plate, and a center conductor plate are laminated in this order to sandwich a laminate between the upper magnetic yoke and the lower magnetic yoke, and the upper magnetic yoke has a direct current on the side. In the nonreciprocal circuit device having a permanent magnet plate for applying a magnetic field, the ground substrate is a magnetic insulating substrate having a large insulation resistance in which an input / output electrode and a ground electrode are formed on a magnetic insulator. A non-reciprocal circuit device, wherein the lower magnetic yoke is substituted.
て、前記磁性絶縁基板の磁性材は、前記フェライト板の
フェライト材よりも大きい飽和磁束密度を持つと共に、
使用周波数近傍における透磁率が十分小さいものである
ことを特徴とする非可逆回路素子。2. The nonreciprocal circuit device according to claim 1, wherein the magnetic material of the magnetic insulating substrate has a saturation magnetic flux density higher than that of the ferrite material of the ferrite plate, and
A non-reciprocal circuit device having a magnetic permeability that is sufficiently small in the vicinity of the operating frequency.
おいて、前記磁性絶縁基板上には入出力電極及びアース
電極が形成されると共に、中央部が前記フェライト板を
収納可能に開口された電極基板を積層して成ることを特
徴とする非可逆回路素子。3. The nonreciprocal circuit device according to claim 1, wherein an input / output electrode and a ground electrode are formed on the magnetic insulating substrate, and a central portion is opened to accommodate the ferrite plate. A non-reciprocal circuit device comprising a stack of electrode substrates.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11465596A JPH09307315A (en) | 1996-05-09 | 1996-05-09 | Irreversible circuit component |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11465596A JPH09307315A (en) | 1996-05-09 | 1996-05-09 | Irreversible circuit component |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH09307315A true JPH09307315A (en) | 1997-11-28 |
Family
ID=14643251
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11465596A Pending JPH09307315A (en) | 1996-05-09 | 1996-05-09 | Irreversible circuit component |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH09307315A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1107347A3 (en) * | 1999-11-30 | 2002-09-11 | Murata Manufacturing Co., Ltd. | Nonreciprocal circuit device, communication apparatus, and method for manufacturing nonreciprocal circuit device |
JP2008053847A (en) * | 2006-08-22 | 2008-03-06 | Tdk Corp | Non-reciprocal circuit element and communication device |
JP2009111584A (en) * | 2007-10-29 | 2009-05-21 | Tdk Corp | Non-reciprocal circuit element and communication device |
JP2009111549A (en) * | 2007-10-29 | 2009-05-21 | Tdk Corp | Non-reciprocal circuit element and communication device |
JPWO2016151847A1 (en) * | 2015-03-26 | 2017-07-27 | 三菱電機株式会社 | Irreversible circuit |
-
1996
- 1996-05-09 JP JP11465596A patent/JPH09307315A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1107347A3 (en) * | 1999-11-30 | 2002-09-11 | Murata Manufacturing Co., Ltd. | Nonreciprocal circuit device, communication apparatus, and method for manufacturing nonreciprocal circuit device |
US6710672B2 (en) | 1999-11-30 | 2004-03-23 | Murata Manufacturing Co., Ltd. | Nonreciprocal circuit device, communication apparatus, and method for manufacturing nonreciprocal circuit device |
JP2008053847A (en) * | 2006-08-22 | 2008-03-06 | Tdk Corp | Non-reciprocal circuit element and communication device |
JP2009111584A (en) * | 2007-10-29 | 2009-05-21 | Tdk Corp | Non-reciprocal circuit element and communication device |
JP2009111549A (en) * | 2007-10-29 | 2009-05-21 | Tdk Corp | Non-reciprocal circuit element and communication device |
JPWO2016151847A1 (en) * | 2015-03-26 | 2017-07-27 | 三菱電機株式会社 | Irreversible circuit |
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