JP2011160191A - Irreversible circuit element, and communication device - Google Patents

Irreversible circuit element, and communication device Download PDF

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JP2011160191A
JP2011160191A JP2010020184A JP2010020184A JP2011160191A JP 2011160191 A JP2011160191 A JP 2011160191A JP 2010020184 A JP2010020184 A JP 2010020184A JP 2010020184 A JP2010020184 A JP 2010020184A JP 2011160191 A JP2011160191 A JP 2011160191A
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magnetic
circuit element
reciprocal circuit
permanent magnet
case
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JP5201370B2 (en
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Yoshitsugu Watanabe
悦紹 渡辺
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TDK Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an irreversible circuit element capable of improving intermodulation distortion, and to provide a communication device using the same. <P>SOLUTION: The irreversible circuit element includes a case, a plurality of storage objects stacked in the case, and a lid for pressing the storage objects. The case, the plurality of storage objects and the lid form a magnetic circuit. The plurality of storage objects include a permanent magnet, a magnetic rotor and a nonmagnetic sheet. Since the permanent magnet and the magnetic rotor are included in the plurality of storage objects, a magnetic field is applied to the magnetic rotor from the permanent magnet. The nonmagnetic sheet functions as magnetic reluctance in the magnetic circuit. Thus, the magnetic field given to the magnetic rotor is weakened, and is predicted to act to increase its uniformity. Accordingly, it is considered that the action provides stabilization of electric characteristics, and the intermodulation distortion is resultantly improved. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、アイソレータやサーキュレータ等の非可逆回路素子、及び、これを用いた通信装置に関する。   The present invention relates to an irreversible circuit element such as an isolator or a circulator, and a communication apparatus using the same.

アイソレータやサーキュレータ等の非可逆回路素子は、携帯電話、無線機等の移動体通信装置や、その基地局等に用いられており、その一般的な構造は、例えば、特許文献１に記載されているように、ヨークとして機能する金属ケースの内部に、永久磁石、及び、磁気回転子を含む組立体を収容して構成される。   Non-reciprocal circuit elements such as isolators and circulators are used in mobile communication devices such as mobile phones and wireless devices, and base stations thereof, and the general structure thereof is described in Patent Document 1, for example. As shown, an assembly including a permanent magnet and a magnetic rotor is housed in a metal case that functions as a yoke.

近年、この種の非可逆回路素子では、移動体通信装置における形状の小型化とともに、デジタル変調波の信号伝送特性である相互変調歪み（ＩＭＤ；Inter Modulation Distortion）の改善要求が厳しくなっている。相互変調歪みとは、正常な周波数成分の信号の大きさに対する、歪みの原因となる周波数成分の信号の大きさであり、単位はｄＢｃで表される。これは、言い換えれば、正常な信号伝送の指標であり、入力損失・出力損失・挿入損失に並ぶ重要な特性である。   In recent years, in this type of non-reciprocal circuit device, there has been a strict demand for improvement in intermodulation distortion (IMD), which is a signal transmission characteristic of a digital modulated wave, along with downsizing of the shape of a mobile communication device. The intermodulation distortion is the magnitude of a frequency component signal causing distortion relative to the magnitude of a normal frequency component signal, and its unit is expressed in dBc. In other words, this is an indicator of normal signal transmission and is an important characteristic along with input loss, output loss, and insertion loss.

特許文献１には、接着手段によって非可逆回路素子の特性のばらつきを低減する技術が開示されているが、相互変調歪みを改善する技術は何ら開示されていない。   Patent Document 1 discloses a technique for reducing variation in characteristics of non-reciprocal circuit elements by an adhesive means, but does not disclose any technique for improving intermodulation distortion.

特開２００７−２８８７０１号公報JP 2007-288701 A

本発明の課題は、相互変調歪みを改善し得る非可逆回路素子、及び、これを用いた通信装置を提供することである。   An object of the present invention is to provide a non-reciprocal circuit element capable of improving intermodulation distortion and a communication device using the same.

上述した課題を解決するため、本発明に係る非可逆回路素子は、ケースと、このケース内に積み重ねられた複数の収納物と、前記複数の収納物を押さえつける蓋とを含む。   In order to solve the above-described problem, the nonreciprocal circuit device according to the present invention includes a case, a plurality of items stacked in the case, and a lid for pressing the plurality of items.

前記ケースと前記複数の収納物と前記蓋は、磁気回路を構成している。前記複数の収納物は、永久磁石と、磁気回転子と、非磁性体シートとを含む。   The case, the plurality of storage items, and the lid constitute a magnetic circuit. The plurality of storage items include a permanent magnet, a magnetic rotor, and a non-magnetic sheet.

本発明によると、ケースと、このケース内に積み重ねられた複数の収納物と、複数の収納物を押さえつける蓋とが磁気回路を構成し、複数の収納物には、永久磁石と、磁気回転子が含まれるから、永久磁石から磁気回転子に磁界が印加される。   According to the present invention, a case, a plurality of items stacked in the case, and a lid for pressing the plurality of items constitute a magnetic circuit, and the plurality of items include a permanent magnet and a magnetic rotor. Therefore, a magnetic field is applied from the permanent magnet to the magnetic rotor.

本発明の特徴的部分は、複数の収納物に非磁性体シートが含まれる点にある。この非磁性体シートは磁気回路における磁気抵抗として機能する。これにより、磁気回転子に与えられる磁界を弱めるとともに、その一様性が増すように作用するものと推測される。   The characteristic part of this invention exists in the point in which a nonmagnetic material sheet is contained in several stored articles. This non-magnetic sheet functions as a magnetic resistance in the magnetic circuit. As a result, it is presumed that the magnetic field applied to the magnetic rotor is weakened and the uniformity is increased.

したがって、この作用が電気的特性の安定化をもたらし、結果的に相互変調歪みが改善されるものと考えられる。   Therefore, it is considered that this action leads to stabilization of electric characteristics, and as a result, intermodulation distortion is improved.

しかも、この非磁性体シートの厚みを適宜に設定することによって、上記の磁気抵抗の値を制御することが可能となることから、特性を容易に調整することができる。   In addition, by appropriately setting the thickness of the non-magnetic sheet, it is possible to control the value of the above-described magnetic resistance, so that the characteristics can be easily adjusted.

一方、本発明に係る通信装置は、非可逆回路素子と、送信部または受信部とを含む。本発明に係る非可逆回路素子は、前記送信部または前記受信部と電気的に組み合わされて通信装置を構成する。   On the other hand, the communication apparatus according to the present invention includes a nonreciprocal circuit element and a transmission unit or a reception unit. The nonreciprocal circuit device according to the present invention is electrically combined with the transmission unit or the reception unit to constitute a communication device.

本発明に係る通信装置によると、上述した非可逆回路素子を含むので、既に述べた内容と同様の作用効果が得られる。   According to the communication device of the present invention, since the non-reciprocal circuit element described above is included, the same effects as those already described can be obtained.

以上述べたように、本発明によれば、相互変調歪みを改善し得る非可逆回路素子、及び、これを用いた通信装置を提供することができる。   As described above, according to the present invention, it is possible to provide a nonreciprocal circuit element capable of improving intermodulation distortion and a communication device using the same.

本発明に係る非可逆回路素子の斜視図である。It is a perspective view of the nonreciprocal circuit device according to the present invention. 本発明に係る非可逆回路素子の分解斜視図である。It is a disassembled perspective view of the nonreciprocal circuit device according to the present invention. 本発明に係る非可逆回路素子の部分断面図である。It is a fragmentary sectional view of the nonreciprocal circuit device concerning the present invention. 電圧定在波比を示すグラフである。It is a graph which shows a voltage standing wave ratio. 本発明に係る非可逆回路素子を用いた通信装置のブロック図である。It is a block diagram of the communication apparatus using the nonreciprocal circuit device based on this invention.

図１は、本発明に係る非可逆回路素子の斜視図、図２は分解斜視図、図３は図１の３−３線に沿って切断した部分断面図である。非可逆回路素子は、ケース１と、このケース１内に積み重ねられた複数の収納物２と、複数の収納物２を押さえつける蓋３とを含む。   1 is a perspective view of a non-reciprocal circuit device according to the present invention, FIG. 2 is an exploded perspective view, and FIG. 3 is a partial cross-sectional view taken along line 3-3 of FIG. The non-reciprocal circuit element includes a case 1, a plurality of storage items 2 stacked in the case 1, and a lid 3 that presses down the plurality of storage items 2.

ケース１は、略円柱形状の収納部１４を有する略直方体形状の部材であり、好ましくは鉄等の磁性金属材料で構成されている。ケース１は、収納部１４を規定する内壁と、この内壁の周面の略等間隔な位置に形成された３つの溝部１１〜１３とを含む。   The case 1 is a substantially rectangular parallelepiped member having a substantially cylindrical storage portion 14 and is preferably made of a magnetic metal material such as iron. The case 1 includes an inner wall that defines the storage portion 14 and three groove portions 11 to 13 that are formed at substantially equal intervals on the peripheral surface of the inner wall.

ケース１は、収納部１４に複数の収納物２を積み上げて収納し、その上方で蓋３と螺合することによって複数の収納物２が押さえつけられるように、収納部１４を規定する周壁に螺子溝１５が設けられている。   The case 1 has a plurality of storage items 2 stacked and stored in the storage unit 14, and is screwed onto a peripheral wall that defines the storage unit 14 so that the plurality of storage items 2 are pressed by being screwed with the lid 3 above the storage unit 14. A groove 15 is provided.

蓋３は、鉄などの磁性材料からなる円板状体であって、ヨークとして用いられる。蓋２は、ケース１に組みつけられたとき、収納部１４に備えられた磁気回転子組立体４に荷重を印加する。蓋３の周面には、ケース１と螺合するための螺子３１が形成されている。   The lid 3 is a disc-shaped body made of a magnetic material such as iron, and is used as a yoke. When the lid 2 is assembled to the case 1, it applies a load to the magnetic rotor assembly 4 provided in the storage portion 14. A screw 31 for screwing with the case 1 is formed on the peripheral surface of the lid 3.

複数の収納物２は、上部磁極板２１と、非磁性体シート２２と、第１の永久磁石２３１と、第１の中間磁極板２４１と、磁気回転子４と、第２の中間磁極板２４２と、第２の永久磁石２３２と、下部磁極板２７とを含み、この順序でケース１内に積み重ねられている。   The plurality of storage items 2 includes an upper magnetic pole plate 21, a nonmagnetic sheet 22, a first permanent magnet 231, a first intermediate magnetic pole plate 241, a magnetic rotor 4, and a second intermediate magnetic pole plate 242. And the second permanent magnet 232 and the lower magnetic pole plate 27 are stacked in the case 1 in this order.

磁気回転子４は、第１のフェライト基体２５１と、中心導体２６と、第２のフェライト基体２５２とを含み、それぞれが上述した順序で積み重ねられている。第１及び第２のフェライト基体２５１，２５２は、イットリウム／鉄／ガーネット（ＹＩＧ）等の軟磁性材料からなる円板状のフェライト部２５１ａ，２５２ａと、その外周に設けられた円環板状の誘電体部２５１ｂ，２５２ｂとを有している。なお、フェライト基体２５１，２５２，３５１，３５２の形状は、この形状に限定されず、角板等であってもよい。   The magnetic rotor 4 includes a first ferrite base 251, a center conductor 26, and a second ferrite base 252, which are stacked in the order described above. The first and second ferrite bases 251 and 252 are disk-shaped ferrite portions 251a and 252a made of a soft magnetic material such as yttrium / iron / garnet (YIG), and annular plate-shaped members provided on the outer periphery thereof. Dielectric portions 251b and 252b are included. Note that the shape of the ferrite bases 251, 252, 351, 352 is not limited to this shape, and may be a square plate or the like.

中心導体２６は、好ましくは、厚さが０．０５〜１．０（ｍｍ）程度の銅板を加工した導体板あって、外周に突設された第１〜第３の端子２６１〜２６３を有する。中心導体２６は、第１のフェライト基体２５１と、第２のフェライト基体２５２とにより挟持されている。   The center conductor 26 is preferably a conductor plate obtained by processing a copper plate having a thickness of about 0.05 to 1.0 (mm), and has first to third terminals 261 to 263 protruding from the outer periphery. . The center conductor 26 is sandwiched between the first ferrite base 251 and the second ferrite base 252.

第１及び第２の中間磁極板２４１，２４２及び下部磁極板２７は、厚さ０．１〜０．３（ｍｍ）程度の導体板であって、例えば鉄よりなる。中間磁極板２４１，２４２は、それぞれ、フェライト基体２５１，２５２と永久磁石２３１，２３２の間に各々と隣接して配置され、磁気特性の安定化に寄与する。また、下部磁極板２７は、ケース１の底面と第２の永久磁石２３２との間に各々と隣接して配置され、磁気特性の安定化に寄与する。   The first and second intermediate magnetic pole plates 241 and 242 and the lower magnetic pole plate 27 are conductor plates having a thickness of about 0.1 to 0.3 (mm), and are made of, for example, iron. The intermediate magnetic pole plates 241 and 242 are disposed adjacent to each other between the ferrite bases 251 and 252 and the permanent magnets 231 and 232, respectively, and contribute to stabilization of magnetic characteristics. Further, the lower magnetic pole plate 27 is disposed adjacent to each other between the bottom surface of the case 1 and the second permanent magnet 232, and contributes to stabilization of magnetic characteristics.

一方、上部磁極板２１は、厚さ０．１〜０．３（ｍｍ）程度の導体板であって、例えば鉄とニッケルの合金（整磁鋼など）よりなる。上部磁極板２１は蓋３と非磁性体シート２２の間に各々と隣接して配置される。上部磁極板２１は、永久磁石２３１，２３２とフェライト基体２５１，２５２の温度変化に対する磁気特性の変化を相殺することにより特性を安定化させる効果を奏する。   On the other hand, the upper magnetic pole plate 21 is a conductive plate having a thickness of about 0.1 to 0.3 (mm), and is made of, for example, an alloy of iron and nickel (such as a magnetic shunt steel). The upper magnetic pole plate 21 is disposed adjacent to each other between the lid 3 and the nonmagnetic material sheet 22. The upper magnetic pole plate 21 has an effect of stabilizing the characteristics by canceling the change of the magnetic characteristics with respect to the temperature change of the permanent magnets 231 and 232 and the ferrite bases 251 and 252.

また、上部磁極板２１には、外周の略等間隔な位置に３つの凸部２１１〜２１３が設けられている。この凸部２１１〜２１３は、ケース１の溝部１１〜１３に係合することによって回転止めとして機能する。これにより、蓋３を螺子止めするとき、蓋３の回転につられて収納物２が回転し、調整済みの特性が変化してしまうことを防止することができる。   Further, the upper magnetic pole plate 21 is provided with three convex portions 211 to 213 at substantially equal intervals on the outer periphery. The convex portions 211 to 213 function as rotation stoppers by engaging with the groove portions 11 to 13 of the case 1. Thereby, when the lid 3 is screwed, it is possible to prevent the stored item 2 from being rotated by the rotation of the lid 3 and changing the adjusted characteristics.

第１及び第２の永久磁石２３１，２３２は、磁気回転子４の両面と隣接して配置され、図３に示されるように、磁気回転子４に直流磁界Ｈを印加する。直流磁界Ｈは、収納物２からケース１の底部、そして側壁に沿って、ヨークである蓋３から収納物２へと戻る経路の閉ループをなす。すなわち、ケース１と複数の収納物２と蓋３は、磁気回路を構成している。   The first and second permanent magnets 231 and 232 are disposed adjacent to both surfaces of the magnetic rotor 4 and apply a DC magnetic field H to the magnetic rotor 4 as shown in FIG. The DC magnetic field H forms a closed loop of a path that returns from the stored item 2 to the stored item 2 from the lid 3 serving as a yoke along the bottom of the case 1 and the side wall. That is, the case 1, the plurality of storage items 2, and the lid 3 constitute a magnetic circuit.

本発明の特徴的部分は、非磁性体シート２２を備える点にある。非磁性体シート２２は、蓋３と第１の永久磁石２３１の間に各々と隣接して備えられ、典型的には、テフロン（登録商標）や銅板などの非磁性体材料を用いて形成される。実験によって、この非磁性体シート２２は相互変調歪みの改善に寄与することが見出された。図４は、電圧定在波比（ＶＳＷＲ：Voltage Standing Wave Racio）を示すグラフである。   A characteristic part of the present invention is that a nonmagnetic sheet 22 is provided. The nonmagnetic material sheet 22 is provided adjacent to each other between the lid 3 and the first permanent magnet 231 and is typically formed using a nonmagnetic material such as Teflon (registered trademark) or a copper plate. The Through experiments, it was found that this nonmagnetic sheet 22 contributes to improvement of intermodulation distortion. FIG. 4 is a graph showing a voltage standing wave ratio (VSWR).

図中の符号ａは、非磁性体シート２２を備えていない非可逆回路素子（すなわち、従来技術に係る非可逆回路素子）の特性を表し、符号ｃは、非磁性体シート２２を備えた非可逆回路素子（すなわち、本発明に係る非可逆回路素子）の特性を表す。図示されるように、本発明に係る非可逆回路素子に適宜に調整を行えば、全体的に相互変調歪みの値が減少して、特性が改善されていることが理解される。実験によると、最大で５（ｄＢｃ）程度の改善が確認された。   The symbol a in the figure represents the characteristics of a non-reciprocal circuit element that does not include the nonmagnetic sheet 22 (that is, the nonreciprocal circuit element according to the prior art), and the symbol c represents a non-reversible circuit element that includes the nonmagnetic sheet 22. The characteristics of the reversible circuit element (that is, the nonreciprocal circuit element according to the present invention) are represented. As shown in the figure, it is understood that when the non-reciprocal circuit device according to the present invention is appropriately adjusted, the value of intermodulation distortion is reduced as a whole and the characteristics are improved. According to experiments, an improvement of about 5 (dBc) at the maximum was confirmed.

また、符号ｂは、非磁性体シート２２を備えた非可逆回路素子の特性であって、フェライト基体２５１，２５２を透過する磁束数の調整を行う前のものを表している。この磁束数の調整が必要となる理由は次の通りである。   The symbol b represents the characteristics of the non-reciprocal circuit element including the non-magnetic material sheet 22 before the adjustment of the number of magnetic fluxes transmitted through the ferrite bases 251 and 252. The reason why the number of magnetic fluxes needs to be adjusted is as follows.

まず、符号ａに示されるように、中心周波数ｆｃ（例えば２Ｇ（Ｈｚ））に合わせて特性を調整された非可逆回路素子に非磁性体シート２２を追加すると、上述した磁気抵抗の効果により磁界Ｈが弱まるので、特性全体が周波数ｆｒｃを中心とするように低周波側にずれてしまう（符号ｂを参照）。このため、符号ｃに示される特性を得るべく、永久磁石２３１，２３２を着磁することによって、磁気回転子４を透過する磁束数を、符号ａに示す特性の場合と同数にすることが必要となるのである。そして、その結果として、相互変調歪みが改善される。   First, as shown by reference symbol a, when the nonmagnetic sheet 22 is added to the nonreciprocal circuit element whose characteristics are adjusted to the center frequency fc (for example, 2 G (Hz)), a magnetic field is generated by the above-described magnetoresistance effect. Since H is weakened, the entire characteristic is shifted to the low frequency side so as to be centered on the frequency frc (see symbol b). For this reason, in order to obtain the characteristic indicated by the symbol c, it is necessary to magnetize the permanent magnets 231 and 232 so that the number of magnetic fluxes transmitted through the magnetic rotor 4 is the same as the characteristic indicated by the symbol a. It becomes. As a result, the intermodulation distortion is improved.

このように、従来、改善が困難であった相互変調歪みを、非磁性体シート２２を備えるだけで、簡便に向上させることができる。その理由としては、非磁性体シート２２は磁気回路における磁気抵抗として機能するため、これにより、磁気回転子４に与えられる磁界Ｈを弱めるとともに、その一様性が増すように作用するものと推測される。   As described above, the intermodulation distortion, which has conventionally been difficult to improve, can be easily improved by simply providing the nonmagnetic sheet 22. The reason is that the non-magnetic material sheet 22 functions as a magnetic resistance in the magnetic circuit, so that it acts to weaken the magnetic field H applied to the magnetic rotor 4 and increase its uniformity. Is done.

したがって、この作用が電気的特性の安定化をもたらし、結果的に相互変調歪みが改善されるものと考えられる。   Therefore, it is considered that this action leads to stabilization of electric characteristics, and as a result, intermodulation distortion is improved.

実験では、非磁性体シート２２の厚みを０．１〜１．０（ｍｍ）とした場合、良好な特性が得られた。この厚みを適宜に設定することによって、上記の磁気抵抗の値を制御することができるから、特性の調整を容易に行うことができる。   In the experiment, good characteristics were obtained when the thickness of the nonmagnetic sheet 22 was 0.1 to 1.0 (mm). By appropriately setting the thickness, the value of the magnetic resistance can be controlled, so that the characteristics can be easily adjusted.

本実施形態では、非磁性体シート２２の形状として円板を例示したが、これに限定される必要はなく、収納部１４の形状に応じて、例えば矩形状としてもよいし、また、円環状としてもよいことは言うまでもない。ここで、非磁性体シート２２を環状とした場合、中心部分にエアギャップが形成され、このエアギャップも磁気抵抗として機能するから、同様の効果が得られると同時に、中心部分について材料の使用を削減できるから、製造コストを低減することもできる。   In the present embodiment, a disk is illustrated as the shape of the nonmagnetic sheet 22, but the shape is not limited to this, and may be, for example, a rectangular shape or an annular shape according to the shape of the storage portion 14. Needless to say. Here, when the non-magnetic sheet 22 is formed in an annular shape, an air gap is formed in the central portion, and this air gap also functions as a magnetic resistance. Since it can reduce, manufacturing cost can also be reduced.

また、本実施形態では、非磁性体シート２２が蓋３と永久磁石２３の間に配置されているが、これに限定される必要はなく、磁気回路構成に応じて、永久磁石２３と磁気回転子４の間に配置する態様もとり得る。更に言えば、要求される特性に応じて、永久磁石２３１，２３２、磁極板２１，２４１，２４２，２７の使用数及び配置も適宜に変更することができるのは自明である。   In the present embodiment, the nonmagnetic sheet 22 is disposed between the lid 3 and the permanent magnet 23. However, the present invention is not limited to this, and the permanent magnet 23 and the magnetic rotation are not limited to this. It is possible to adopt a mode in which they are arranged between the children 4. Furthermore, it is obvious that the number and arrangement of the permanent magnets 231 and 232 and the magnetic pole plates 21, 241, 242, and 27 can be appropriately changed according to the required characteristics.

次に、本発明に係る通信装置について説明する。図５は本発明に係る非可逆回路素子を用いた通信装置のブロック図である。   Next, the communication apparatus according to the present invention will be described. FIG. 5 is a block diagram of a communication apparatus using the nonreciprocal circuit device according to the present invention.

この通信装置は、例えば、移動通信システムにおける基地局に備えられるものであって、受信部６と、送信部７とを含み、両者は、送受信用アンテナ８に接続されている。受信部６は、受信用増幅回路６２と、受信された信号を処理する受信回路６１とを含んでいる。送信部７は、音声信号、映像信号などを生成する送信回路７１と、電力増幅回路７２とを含んでいる。上述した通信装置において、アンテナ８から受信部６及び送信部７に到る回路や、電力増幅回路７２の出力段に、本発明に係る非可逆回路素子７３、７４が用いられる。非可逆回路素子７３はサーキュレータとして機能し、非可逆回路素子７４は終端抵抗器Ｒ０を有するアイソレータとして機能する。   This communication apparatus is provided in, for example, a base station in a mobile communication system, and includes a reception unit 6 and a transmission unit 7, both of which are connected to a transmission / reception antenna 8. The reception unit 6 includes a reception amplification circuit 62 and a reception circuit 61 that processes a received signal. The transmission unit 7 includes a transmission circuit 71 that generates an audio signal, a video signal, and the like, and a power amplification circuit 72. In the communication apparatus described above, the nonreciprocal circuit elements 73 and 74 according to the present invention are used in the circuit from the antenna 8 to the reception unit 6 and the transmission unit 7 and the output stage of the power amplification circuit 72. The nonreciprocal circuit element 73 functions as a circulator, and the nonreciprocal circuit element 74 functions as an isolator having a termination resistor R0.

本発明に係る通信装置によると、上述した非可逆回路素子を含むので、既に述べた内容と同様の作用効果が得られる。   According to the communication device of the present invention, since the non-reciprocal circuit element described above is included, the same effects as those already described can be obtained.

以上、好ましい実施例を参照して本発明の内容を具体的に説明したが、本発明の基本的技術思想及び教示に基づいて、当業者であれば、種々の変形態様を採り得ることは自明である。   Although the contents of the present invention have been specifically described above with reference to the preferred embodiments, it is obvious that those skilled in the art can take various modifications based on the basic technical idea and teachings of the present invention. It is.

１ ケース
２ 複数の収納物
２１，２４１，２４２，２７ 磁極板
２２ 非磁性体シート
２３１，２３２ 永久磁石
２５１，２５２ フェライト基体
２６ 中心導体
３ 蓋
４ 磁気回転子
７ 送信部
Ｈ 直流磁界 DESCRIPTION OF SYMBOLS 1 Case 2 Plural things 21, 241, 242, 27 Magnetic pole plate 22 Nonmagnetic material sheet 231,232 Permanent magnet 251,252 Ferrite base 26 Center conductor 3 Lid 4 Magnetic rotor 7 Transmitter H DC magnetic field

Claims (10)

ケースと、このケース内に積み重ねられた複数の収納物と、前記複数の収納物を押さえつける蓋とを含む非可逆回路素子であって、
前記ケースと前記複数の収納物と前記蓋は、磁気回路を構成し、
前記複数の収納物は、永久磁石と、磁気回転子と、非磁性体シートとを含む、
非可逆回路素子。 A nonreciprocal circuit device including a case, a plurality of items stacked in the case, and a lid for pressing the plurality of items,
The case, the plurality of storage items, and the lid constitute a magnetic circuit,
The plurality of storage items include a permanent magnet, a magnetic rotor, and a non-magnetic sheet.
Non-reciprocal circuit element. 請求項１に記載された非可逆回路素子であって、
前記非磁性体シートは、前記蓋と前記永久磁石の間に配置されている、
非可逆回路素子。 The non-reciprocal circuit device according to claim 1,
The non-magnetic sheet is disposed between the lid and the permanent magnet.
Non-reciprocal circuit element. 請求項１または２に記載された非可逆回路素子であって、
前記非磁性体シートは、テフロン（登録商標）からなる、
非可逆回路素子。 A non-reciprocal circuit device according to claim 1 or 2,
The nonmagnetic sheet is made of Teflon (registered trademark).
Non-reciprocal circuit element. 請求項１または２に記載された非可逆回路素子であって、
前記非磁性体シートは、銅からなる、
非可逆回路素子。 A non-reciprocal circuit device according to claim 1 or 2,
The nonmagnetic material sheet is made of copper.
Non-reciprocal circuit element. 請求項１乃至４の何れかに記載された非可逆回路素子であって、
前記非磁性体シートは、環状である、
非可逆回路素子。 A non-reciprocal circuit device according to any one of claims 1 to 4,
The non-magnetic sheet is annular.
Non-reciprocal circuit element. 請求項１乃至５の何れかに記載された非可逆回路素子であって、
前記非磁性体シートは、厚みが０．１〜１．０（ｍｍ）である、
非可逆回路素子。 A non-reciprocal circuit device according to any one of claims 1 to 5,
The nonmagnetic sheet has a thickness of 0.1 to 1.0 (mm).
Non-reciprocal circuit element. 請求項１乃至６の何れかに記載された非可逆回路素子であって、
前記磁気回転子は、２つのフェライト基体と、中心導体とを含み、
前記中心導体は前記２つのフェライト基体の間に配置されている、
非可逆回路素子。 A nonreciprocal circuit device according to any one of claims 1 to 6,
The magnetic rotor includes two ferrite substrates and a central conductor,
The central conductor is disposed between the two ferrite substrates;
Non-reciprocal circuit element. 請求項１乃至６の何れかに記載された非可逆回路素子であって、
前記永久磁石は、前記磁気回転子の両面側に配置されている、
非可逆回路素子。 A nonreciprocal circuit device according to any one of claims 1 to 6,
The permanent magnet is disposed on both sides of the magnetic rotor,
Non-reciprocal circuit element. 請求項８に記載された非可逆回路素子であって、
前記複数の収納物は、さらに導体板を含み、
前記導体板は、前記フェライト基体と前記永久磁石の間に配置されている、
非可逆回路素子。 A non-reciprocal circuit device according to claim 8,
The plurality of storage items further include a conductor plate,
The conductor plate is disposed between the ferrite base and the permanent magnet.
Non-reciprocal circuit element. 非可逆回路素子と、送信部または受信部とを含む通信装置であって、
前記非可逆回路素子は、請求項１乃至９の何れかに記載されたものでなり、前記送信部または前記受信部と電気的に組み合わされている、
通信装置。 A communication device including an irreversible circuit element and a transmission unit or a reception unit,
The non-reciprocal circuit element is any one of claims 1 to 9, and is electrically combined with the transmission unit or the reception unit.
Communication device.
JP2010020184A 2010-02-01 2010-02-01 Non-reciprocal circuit device and communication device Expired - Fee Related JP5201370B2 (en)

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