JPH07321506A - Tm dual mode dielectric resonator - Google Patents
Tm dual mode dielectric resonatorInfo
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- JPH07321506A JPH07321506A JP11655294A JP11655294A JPH07321506A JP H07321506 A JPH07321506 A JP H07321506A JP 11655294 A JP11655294 A JP 11655294A JP 11655294 A JP11655294 A JP 11655294A JP H07321506 A JPH07321506 A JP H07321506A
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- Prior art keywords
- coupling
- dielectric
- composite dielectric
- columns
- composite
- Prior art date
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、２つの誘電体柱を交
差させた形状からなる複合誘電体柱を複数個配列してな
るＴＭ二重モード誘電体共振器装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a TM dual mode dielectric resonator device in which a plurality of composite dielectric columns having a shape in which two dielectric columns are crossed are arranged.
【０００２】[0002]
【従来の技術】周囲を外導体で囲んだ空間内に２つの誘
電体柱を交差させてなる複合誘電体柱を備えたＴＭ二重
モード誘電体共振器を複数個用いた従来のＴＭ二重モー
ド誘電体共振器装置の構成を図９に示す。同図において
１０ａ，１０ｂ，１０ｃはそれぞれ２つの誘電体柱を交
差させた形状からなる複合誘電体柱、１３ａ，１３ｂ，
１３ｃはこれらの複合誘電体柱とともに一体成形したキ
ャビティであり、その外面に外導体を形成している。各
複合誘電体柱１０ａ，１０ｂ，１０ｃには、誘電体柱の
交差部に、その交差方向に対して４５°方向に対向する
２つの溝ｇ，ｇをそれぞれ形成している。この溝によっ
て、２つの誘電体柱による偶モードと奇モードの共振周
波数に差を生じさせて、２つの誘電体柱による二段の共
振器を結合させている。複合誘電体柱１０ａ，１０ｂ，
１０ｃとキャビティ１３ａ，１３ｂ，１３ｃからなる３
つのユニットの間には複合誘電体柱のうち互いに平行な
２つの誘電体柱同士を選択的に磁界結合させる磁界結合
用窓を形成した仕切板１４ａ，１４ｃを配置している。
また配列した３つのユニットの両端の開口面には磁界結
合用の結合ループ（不図示）を配置している。これによ
り６段の共振器からなる帯域通過フィルタとして作用す
るＴＭ二重モード誘電体共振器装置を構成している。2. Description of the Related Art A conventional TM dual mode using a plurality of TM dual mode dielectric resonators each having a composite dielectric column formed by intersecting two dielectric columns in a space surrounded by an outer conductor. The configuration of the mode dielectric resonator device is shown in FIG. In the figure, 10a, 10b, and 10c are composite dielectric columns each having a shape in which two dielectric columns are crossed, 13a, 13b,
13c is a cavity integrally formed with these composite dielectric columns, and has an outer conductor formed on the outer surface thereof. In each of the composite dielectric columns 10a, 10b, 10c, two grooves g, g facing each other in the direction of 45 ° with respect to the intersection direction are formed at the intersections of the dielectric columns. This groove causes a difference in the resonant frequencies of the even mode and the odd mode by the two dielectric columns, and couples the two-stage resonator by the two dielectric columns. Composite dielectric columns 10a, 10b,
3 consisting of 10c and cavities 13a, 13b, 13c
Partition plates 14a and 14c having a magnetic field coupling window for selectively magnetically coupling two mutually parallel dielectric columns among the composite dielectric columns are arranged between the units.
Further, coupling loops (not shown) for magnetic field coupling are arranged on the opening surfaces at both ends of the arranged three units. This constitutes a TM dual mode dielectric resonator device which acts as a bandpass filter consisting of 6 stages of resonators.
【０００３】図７は図９に示した各ＴＭ二重モード誘電
体共振器における共振モードの説明図である。図７の
（Ａ）を偶モード、（Ｂ）を奇モードの電界をそれぞれ
示すものとすれば、偶モードの共振周波数と奇モードの
共振周波数とは溝ｇの存在によって差が生じ、これによ
って誘電体柱１１，１２による２つの共振器間に結合が
生じる。FIG. 7 is an explanatory diagram of resonance modes in each TM dual mode dielectric resonator shown in FIG. If (A) of FIG. 7 shows the even mode electric field and (B) shows the odd mode electric field, respectively, a difference occurs between the resonance frequency of the even mode and the resonance frequency of the odd mode due to the existence of the groove g. Coupling occurs between the two resonators formed by the dielectric columns 11 and 12.
【０００４】以上のように構成した図９に示したＴＭ二
重モード誘電体共振器装置の帯域通過特性は図１０に示
すようなものとなる。The band pass characteristic of the TM double mode dielectric resonator device shown in FIG. 9 constructed as above is as shown in FIG.
【０００５】[0005]
【発明が解決しようとする課題】図９に示した装置の等
価回路は図８のように表される。ここでＲ１，Ｒ２は図
９に示した複合誘電体柱１０ａによる２段の共振器、Ｒ
３，Ｒ４は同じく複合誘電体柱１０ｂによる２段の共振
器、Ｒ５，Ｒ６は複合誘電体柱１０ｃによる２段の共振
器である。上述したように、共振器Ｒ１−Ｒ２間、Ｒ３
−Ｒ４間、Ｒ５−Ｒ６間はそれぞれ２つの誘電体柱の交
差部に溝を設けたことによってそれぞれの結合してい
て、共振器Ｒ２−Ｒ３間、Ｒ４−Ｒ５間はそれぞれ上述
した仕切板に設けた磁界結合用窓を介して結合してい
る。例えば、複合誘電体柱１０ａ，１０ｂの鉛直方向の
誘電体柱同士が磁界結合し、複合誘電体柱１０ｂ，１０
ｃの水平方向の誘電体柱同士が磁界結合する。ところ
が、このように仕切板に磁界結合用窓を形成していて
も、複合誘電体柱１０ａ，１０ｂの水平方向の誘電体柱
同士も弱く磁界結合し、複合誘電体柱１０ｂ，１０ｃの
鉛直方向の誘電体柱同士も同じく弱く磁界結合する。そ
の結果、図８に示すように、１段目と４段目の共振器間
および３段目と６段目の共振器間にいわゆる「とび結
合」が生じることになる。An equivalent circuit of the device shown in FIG. 9 is represented as shown in FIG. Here, R1 and R2 are two-stage resonators based on the composite dielectric pillar 10a shown in FIG.
Similarly, 3 and R4 are two-stage resonators based on the composite dielectric pillar 10b, and R5 and R6 are two-stage resonators based on the composite dielectric pillar 10c. As described above, between the resonators R1 and R2, R3
-R4 and R5-R6 are connected to each other by providing a groove at the intersection of two dielectric columns, and the resonators R2-R3 and R4-R5 are connected to the partition plate described above. Coupling is performed through a magnetic field coupling window provided. For example, the dielectric columns in the vertical direction of the composite dielectric columns 10a and 10b are magnetically coupled to each other, and the composite dielectric columns 10b and 10b
The horizontal dielectric columns of c are magnetically coupled to each other. However, even if the magnetic field coupling window is formed in the partition plate in this manner, the horizontal dielectric columns of the composite dielectric columns 10a and 10b are also weakly magnetically coupled to each other, and the composite dielectric columns 10b and 10c are vertically aligned. Similarly, the dielectric columns of are also weakly magnetically coupled. As a result, as shown in FIG. 8, so-called "coupling coupling" occurs between the first-stage and fourth-stage resonators and between the third-stage and sixth-stage resonators.
【０００６】図９に示したように、従来のＴＭ二重モー
ド誘電体共振器装置においては、２つの誘電体柱の交差
部に設ける溝の形成方向が各ユニットについてすべて同
一方向にしていたため、上述したとび結合は同位相で生
じてしまい、帯域通過フィルタとしての減衰特性を悪く
する原因となっていた。そのため、従来では、減衰特性
の悪化をなるべく抑えるために、仕切板に設ける磁界結
合用窓の水平方向または鉛直方向の選択性を高める工夫
をし、また所定の段間を結合させて減衰極を形成するた
めのいわゆる有極ケーブルを接続するなどしていた。と
ころが、このような有極ケーブルを用いると挿入損失特
性が劣化する問題もあった。As shown in FIG. 9, in the conventional TM double mode dielectric resonator device, the grooves formed at the intersections of the two dielectric columns are formed in the same direction for each unit. The above-mentioned skip coupling occurs in the same phase, which causes deterioration of the attenuation characteristics of the bandpass filter. Therefore, in the past, in order to suppress deterioration of the damping characteristics as much as possible, a device for enhancing the selectivity in the horizontal direction or the vertical direction of the magnetic field coupling window provided in the partition plate was devised, and the predetermined poles were coupled to form the damping pole. For example, a so-called polarized cable for forming was connected. However, there is a problem that the insertion loss characteristic is deteriorated when such a polarized cable is used.
【０００７】この発明の目的は、上述したとび結合によ
る減衰特性の悪化を防止して、減衰特性の優れた帯域通
過フィルタとして用いることのできるＴＭ二重モード誘
電体共振器装置を提供することにある。An object of the present invention is to provide a TM dual mode dielectric resonator device which can prevent the deterioration of the attenuation characteristic due to the above-mentioned jump coupling and can be used as a bandpass filter having an excellent attenuation characteristic. is there.
【０００８】この発明の他の目的は、有極ケーブルを用
いることによる挿入損失特性の劣化を防止し、また有極
ケーブルを用いることによる作業性の低下をなくしたＴ
Ｍ二重モード誘電体共振器装置を提供することにある。Another object of the present invention is to prevent deterioration of insertion loss characteristics due to the use of a polarized cable, and to eliminate workability deterioration due to the use of a polarized cable.
An object is to provide an M dual mode dielectric resonator device.
【０００９】この発明のさらに他の目的は、とび結合に
よって通過帯域に近接する高域側、低域側またはその両
方に減衰極を形成した状態で、磁界結合用窓の磁界結合
方向の選択性の設定などによって、減衰特性を広範囲に
設定し得るＴＭ二重モード誘電体共振器装置を提供する
ことにある。Still another object of the present invention is to select a magnetic field coupling direction of a magnetic field coupling window in a state where an attenuation pole is formed on a high band side, a low band side or both close to a pass band by jump coupling. It is an object of the present invention to provide a TM double mode dielectric resonator device capable of setting the attenuation characteristic in a wide range by setting the above.
【００１０】[0010]
【課題を解決するための手段】この発明の請求項１に係
るＴＭ二重モード誘電体共振器装置は、それぞれ２つの
誘電体柱を交差させた形状からなり、該２つの誘電体柱
の交差部に結合用溝を形成した複数の複合誘電体柱を、
周囲を外導体で囲んだ空間内に平行に配置するととも
に、隣接する複合誘電体柱のうち平行な２つの誘電体柱
同士を選択的に磁界結合させる磁界結合用窓を各複合誘
電体柱間に設けたＴＭ二重モード誘電体共振器装置にお
いて、前記複数の複合誘電体柱のうち少なくとも１つの
複合誘電体柱に設けた前記結合用溝の形成方向を、他の
複合誘電体柱に設けた結合用溝の形成方向に交差させた
ことを特徴とする。A TM double mode dielectric resonator device according to claim 1 of the present invention has a shape in which two dielectric columns are crossed, and the two dielectric columns cross each other. A plurality of composite dielectric pillars with coupling grooves formed on the
A magnetic field coupling window for arranging the peripheries in a space surrounded by an outer conductor in parallel and selectively magnetically coupling two parallel dielectric columns of adjacent composite dielectric columns to each other is provided between the composite dielectric columns. In the TM dual-mode dielectric resonator device provided in, the forming direction of the coupling groove provided in at least one composite dielectric pillar among the plurality of composite dielectric pillars is provided in another composite dielectric pillar. It is characterized by intersecting with the forming direction of the coupling groove.
【００１１】この発明の請求項２に係るＴＭ二重モード
誘電体共振器装置は、請求項１記載のものにおいて、前
記複数の複合誘電体柱の結合用溝の形成方向が、該複数
の複合誘電体柱の配置順に交互に交差方向となる関係で
前記結合用溝を形成したことを特徴とする。According to a second aspect of the present invention, there is provided the TM double mode dielectric resonator device according to the first aspect, wherein the coupling grooves of the plurality of composite dielectric columns are formed in the plurality of composite dielectric columns. It is characterized in that the coupling grooves are formed in a relationship that they are alternately arranged in the order of arrangement of the dielectric columns.
【００１２】[0012]
【作用】この発明の請求項１に係るＴＭ二重モード誘電
体共振器装置では、各複合誘電体柱を構成する２つの誘
電体柱がその交差部に形成された結合用溝の存在によっ
て結合し、隣接する複合誘電体柱のうち平行な２つの誘
電体柱同士が磁界結合用窓を介して磁界結合する。その
際、複数の複合誘電体柱の少なくとも１つの複合誘電体
柱に設けた結合用溝の形成方向が他の複合誘電体柱に設
けた結合用溝の形成方向とは交差しているため、この２
つの複合誘電体柱にそれぞれ生じる偶モードと奇モード
の共振モードが互いに逆の関係となる。そのためこの２
つの複合誘電体柱間に生じるとび結合は逆位相の関係と
なる。その結果、減衰極が生じる。この減衰極を通過帯
域に隣接する低域側または高域側に生じさせることによ
って帯域通過フィルタとしての減衰特性が向上すること
になる。In the TM double mode dielectric resonator device according to the first aspect of the present invention, the two dielectric columns forming each composite dielectric column are coupled by the presence of the coupling groove formed at the intersection thereof. Then, two parallel dielectric columns of the adjacent composite dielectric columns are magnetically coupled to each other through the magnetic field coupling window. At that time, since the forming direction of the coupling groove provided in at least one of the plurality of composite dielectric columns intersects the forming direction of the coupling groove provided in another composite dielectric column, This 2
Even-mode and odd-mode resonance modes generated in each of the two composite dielectric columns have an inverse relationship. Therefore this 2
The jump coupling that occurs between two composite dielectric columns has an antiphase relationship. As a result, an attenuation pole is created. By producing this attenuation pole on the low-pass side or the high-pass side adjacent to the pass band, the attenuation characteristic as the band pass filter is improved.
【００１３】請求項２に係るＴＭ二重モード誘電体共振
器装置では、複数の複合誘電体柱の結合用溝の形成方向
が、複数の複合誘電体柱の配置順に交互に交差方向とな
る関係であるため、隣接する複合誘電体柱間に生じると
び結合の位相がすべて逆位相となって、同位相でとび結
合が生じることによる減衰特性の悪化がなくなり、例え
ば通過帯域の高域側と低域側にそれぞれ近接する位置に
減衰極を設けることによって、高域と低域の何れの減衰
特性も改善したＴＭ二重モード誘電体共振器装置が得ら
れる。In the TM double mode dielectric resonator device according to the second aspect of the present invention, the forming direction of the coupling groove of the plurality of composite dielectric columns is a crossing direction alternately in the arrangement order of the plurality of composite dielectric columns. Therefore, the phases of the jump coupling generated between the adjacent composite dielectric columns are all opposite phases, and the deterioration of the attenuation characteristics due to the jump coupling occurring in the same phase is eliminated. By providing the attenuation poles at positions close to the band side, it is possible to obtain the TM double mode dielectric resonator device in which both the high band and the low band damping characteristics are improved.
【００１４】また、請求項１または２に係るＴＭ二重モ
ード誘電体共振器装置では、逆位相でとび結合が生じる
２つの複合誘電体柱の間に設ける磁界結合用窓の磁界結
合方向の選択性を高めればとび結合が弱くなり、その磁
界結合方向の選択性を弱めればとび結合が強くなるた
め、磁界結合用窓の結合方向の選択性を適宜設定するこ
とによって、減衰特性を広範囲に亘って設定することも
可能となる。Further, in the TM double mode dielectric resonator device according to the first or second aspect, selection of a magnetic field coupling direction of a magnetic field coupling window provided between two composite dielectric columns in which jump coupling occurs in antiphase. If the property is increased, the jump coupling becomes weaker, and if the selectivity in the magnetic field coupling direction is weakened, the jump coupling becomes stronger.Therefore, by appropriately setting the coupling direction selectivity of the magnetic field coupling window, the attenuation characteristic can be made wide. It is also possible to set over.
【００１５】[0015]
【実施例】この発明の第１の実施例であるＴＭ二重モー
ド誘電体共振器装置の構成を図１〜図４に示す。1 to 4 show the structure of a TM dual mode dielectric resonator device according to a first embodiment of the present invention.
【００１６】図１は、ＴＭ二重モード誘電体共振器装置
の一部である１ユニットの構成を示す分解斜視図であ
る。同図において１０は水平方向と鉛直方向の２つの誘
電体柱を交差させた形状からなる複合誘電体柱、１３は
複合誘電体柱１０とともに一体成形したキャビティであ
り、その四側面１５に外導体を形成している。また同図
において１４は仕切板であり、その一方の面には長さ
Ｌ、幅ｄの複数のスリット状導体開口部１７を除く領域
に外導体１６を形成し、また４つの端面にも外導体１６
を形成している。FIG. 1 is an exploded perspective view showing the structure of one unit which is a part of the TM dual mode dielectric resonator device. In the figure, 10 is a composite dielectric pillar having a shape in which two horizontal and vertical dielectric pillars are crossed, 13 is a cavity integrally molded with the composite dielectric pillar 10, and outer conductors are provided on four side surfaces 15 of the cavity. Is formed. Further, in the figure, 14 is a partition plate, on one surface of which an outer conductor 16 is formed in a region excluding a plurality of slit-shaped conductor openings 17 having a length L and a width d, and also on four end faces. Conductor 16
Is formed.
【００１７】図２は図１に示したユニットを３つ配列し
て構成した装置の平面図であり、（Ａ）は金属カバー
（不図示）を取り外した状態における上面図、（Ｂ）は
同じく金属カバーを取り外した状態における正面図であ
る。同図において１３ａ，１３ｂ，１３ｃはそれぞれ図
１において１３で示したキャビティであり、１４ａ，１
４ｃは図１において１４で示した仕切板である。キャビ
ティ１３ｂの２つの開口部には仕切板を設けず、キャビ
ティ１３ａ，１３ｃのそれぞれの一方の開口部に仕切板
１４ａ，１４ｃを接合することによって、隣接する複合
誘電体柱間の磁界結合用窓を構成している。これらの３
つのユニットは金属ケース１８に対し、キャビティのフ
ランジ部でねじ止めしていて、隣接するキャビティ間を
金属板１９を介して半田付けなどにより接合している。
金属ケース１８には同軸コネクタ２０，２１を取り付
け、同軸コネクタ２０，２１の中心導体と金属ケース１
８との間に２２，２３で示す結合ループをそれぞれ形成
している。この装置の等価回路は図８に示したものと同
一である。FIG. 2 is a plan view of an apparatus constructed by arranging three units shown in FIG. 1, (A) is a top view with a metal cover (not shown) removed, and (B) is the same. It is a front view in the state where the metal cover was removed. In the figure, 13a, 13b and 13c are cavities shown by 13 in FIG.
Reference numeral 4c is a partition plate indicated by 14 in FIG. A partition plate is not provided in the two openings of the cavity 13b, and the partition plates 14a and 14c are joined to one opening of each of the cavities 13a and 13c, whereby a magnetic field coupling window between adjacent composite dielectric columns is formed. Are configured. These three
One unit is screwed to the metal case 18 at the flange portion of the cavity, and the adjacent cavities are joined by soldering or the like via the metal plate 19.
The coaxial connectors 20, 21 are attached to the metal case 18, and the center conductors of the coaxial connectors 20, 21 and the metal case 1 are attached.
Coupling loops indicated by 22 and 23 are formed between each of them. The equivalent circuit of this device is the same as that shown in FIG.
【００１８】図３は、図２に示したＴＭ二重モード誘電
体共振器装置を構成する３つの複合誘電体柱の結合用溝
の形成方向を示す一部破断部分斜視図である。同図に示
すように、複合誘電体柱１０ａと１０ｂに設けた結合用
溝ｇの形成方向は同一であるが、複合誘電体柱１０ｃに
設けた溝ｇの形成方向は他の複合誘電体柱に設けた結合
用溝の形成方向とは９０°異なる交差方向である。図２
に示したように、結合ループ２２のループ面は水平面で
あるため、複合誘電体柱１０ａの水平方向の誘電体柱と
結合ループ２２が結合し、複合誘電体柱１０ａの鉛直方
向の誘電体柱と複合誘電体柱１０ｂの鉛直方向の誘電体
柱とが仕切板１４ａの磁界結合用窓を介して磁界結合す
る。また複合誘電体柱１０ｂ，１０ｃの水平方向の誘電
体柱同士が仕切板１４ｃの磁界結合用窓を介して磁界結
合する。そして複合誘電体柱１０ｃの鉛直方向の誘電体
柱と結合ループ２３とが磁界結合することになる。図３
に示すように、仕切板１４ａに設けた磁界結合用窓は水
平方向に延びる複数のスリット状の導体開口部であるた
め、複合誘電体柱１０ａ，１０ｂの主として鉛直方向の
誘電体柱同士が磁界結合するが、複合誘電体柱１０ａ，
１０ｂの水平方向の誘電体柱同士も僅かながら結合す
る。また、仕切板１４ｃに設けた磁界結合用窓は鉛直方
向に延びる複数のスリット状の導体開口部であるため、
複合誘電体柱１０ｂ，１０ｃの主として水平方向の誘電
体柱同士が磁界結合するが、複合誘電体柱１０ｂ，１０
ｃの鉛直方向の誘電体柱同士も僅かながら結合する。複
合誘電体柱１０ａと１０ｂに設けた結合用溝の形成方向
は同一方向であるため、図８に示した１段目と４段目と
の間のとび結合は同位相となり、また複合誘電体柱１０
ｂと１０ｃに設けた結合用溝の形成方向は９０°の方向
で交差しているため、図８に示した３段目と６段目との
間のとび結合は逆位相となる。FIG. 3 is a partially cutaway perspective view showing the forming direction of the coupling groove of the three composite dielectric columns forming the TM dual mode dielectric resonator device shown in FIG. As shown in the figure, the forming direction of the coupling groove g provided in the composite dielectric columns 10a and 10b is the same, but the forming direction of the groove g provided in the composite dielectric column 10c is the same as that of the other composite dielectric columns. It is an intersecting direction which is different from the forming direction of the coupling groove provided in the above by 90 °. Figure 2
As shown in FIG. 5, since the loop surface of the coupling loop 22 is a horizontal plane, the horizontal dielectric column of the composite dielectric column 10a and the coupling loop 22 are coupled, and the vertical dielectric column of the composite dielectric column 10a is coupled. And the vertical dielectric pillar of the composite dielectric pillar 10b are magnetically coupled via the magnetic field coupling window of the partition plate 14a. Further, the dielectric columns in the horizontal direction of the composite dielectric columns 10b and 10c are magnetically coupled to each other through the magnetic field coupling window of the partition plate 14c. Then, the vertical dielectric pillar of the composite dielectric pillar 10c and the coupling loop 23 are magnetically coupled. Figure 3
As shown in FIG. 5, the magnetic field coupling window provided in the partition plate 14a is a plurality of slit-shaped conductor openings extending in the horizontal direction, and therefore the dielectric columns mainly in the vertical direction of the composite dielectric columns 10a and 10b are magnetic fields. Combined, the composite dielectric pillar 10a,
The horizontal dielectric columns 10b are also coupled to each other, though slightly. Further, since the magnetic field coupling window provided on the partition plate 14c is a plurality of slit-shaped conductor openings extending in the vertical direction,
The dielectric columns mainly in the horizontal direction of the composite dielectric columns 10b, 10c are magnetically coupled to each other, but the composite dielectric columns 10b, 10c
The dielectric columns in the vertical direction of c are also slightly connected to each other. Since the coupling grooves formed in the composite dielectric columns 10a and 10b are formed in the same direction, the jump coupling between the first step and the fourth step shown in FIG. 8 has the same phase, and the composite dielectric Pillar 10
Since the forming directions of the connecting grooves provided in b and 10c intersect at 90 °, the skip connection between the third step and the sixth step shown in FIG. 8 is in the opposite phase.
【００１９】図４は図３に示したＴＭ二重モード誘電体
共振器装置の特性図である。このように通過帯域の高域
側と低域側に減衰極を有する帯域通過特性が得られる。
但し図４では、通過帯域のかなり低域側に減衰極を有す
るため、図中には低域側の減衰極は現れていない。FIG. 4 is a characteristic diagram of the TM double mode dielectric resonator device shown in FIG. In this way, bandpass characteristics having attenuation poles on the high band side and the low band side of the pass band can be obtained.
However, in FIG. 4, since the attenuation pole is located on the fairly low frequency side of the pass band, the attenuation pole on the low frequency side does not appear in the figure.
【００２０】次に、第２の実施例に係るＴＭ二重モード
誘電体共振器装置の構成を図５および図６に示す。図５
は、図３に対応させて示した、３つの複合誘電体柱の結
合用溝の形成方向を示す一部破断部分斜視図である。同
図に示すように、複合誘電体柱１０ｂに設けた溝ｇの形
成方向はこれに隣接する他の複合誘電体柱１０ａ，１０
ｃに設けた結合用溝の形成方向とは９０°異なる交差方
向である。従って図８に示した１段目と４段目との間の
とび結合は逆位相となり、また３段目と６段目との間の
とび結合も逆位相となる。Next, the structure of the TM double mode dielectric resonator device according to the second embodiment is shown in FIGS. Figure 5
FIG. 4 is a partially cutaway perspective view showing a forming direction of a coupling groove of three composite dielectric columns shown corresponding to FIG. 3. As shown in the same figure, the formation direction of the groove g provided in the composite dielectric pillar 10b is different from that of the other composite dielectric pillars 10a, 10a.
It is an intersecting direction which is different from the forming direction of the coupling groove provided in c by 90 °. Therefore, the jump coupling between the first stage and the fourth stage shown in FIG. 8 has the opposite phase, and the jump coupling between the third stage and the sixth stage also has the opposite phase.
【００２１】図６は図５に示したＴＭ二重モード誘電体
共振器装置の特性図である。このように通過帯域に近接
する高域側と低域側に減衰極を有する帯域通過特性が得
られる。FIG. 6 is a characteristic diagram of the TM double mode dielectric resonator device shown in FIG. In this way, band pass characteristics having attenuation poles on the high band side and the low band side close to the pass band can be obtained.
【００２２】なお、第１・第２の実施例では、磁界結合
用窓として複数のスリット状の導体非形成部を配列した
ものとしたが、磁界結合の結合方向の選択性を各スリッ
トの長さＬおよび幅ｄによって定めることができる（図
１参照）。すなわちＬを大きくする程主結合を強めるこ
とになり、ｄを大きくする程とび結合が強くなる。従っ
て、この磁界結合用窓の形状および寸法によって同位相
のとび結合または逆位相のとび結合の強さを設定して、
減衰特性を広範囲に亘って定めることができる。また、
第１・第２の実施例では、帯域通過フィルタとして作用
する１つの装置について示したが、本願発明は例えばデ
ュプレクサの送信フィルタ等のように、複合誘電体共振
器装置の一部に適用することも可能であることは言うま
でもない。In the first and second embodiments, a plurality of slit-shaped conductor non-forming portions are arranged as the magnetic field coupling windows, but the coupling direction selectivity of the magnetic field coupling is determined by the length of each slit. It can be defined by the length L and the width d (see FIG. 1). That is, the larger L is, the stronger the main bond is, and the larger d is, the stronger the jump bond is. Therefore, by setting the strength of the in-phase jump coupling or anti-phase jump coupling by the shape and size of this magnetic field coupling window,
The damping characteristic can be defined over a wide range. Also,
In the first and second embodiments, one device acting as a bandpass filter is shown, but the present invention is applicable to a part of a composite dielectric resonator device such as a transmission filter of a duplexer. It goes without saying that it is also possible.
【００２３】[0023]
【発明の効果】この発明の請求項１に係るＴＭ二重モー
ド誘電体共振器装置によれば、結合用溝の形成方向が互
いに交差関係にある２つの複合誘電体柱間に逆位相のと
び結合が生じて減衰極が形成されるため、減衰特性に優
れた帯域通過フィルタとして作用するＴＭ二重モード誘
電体共振器装置が得られる。According to the TM double mode dielectric resonator device according to the first aspect of the present invention, the anti-phase spread is provided between two composite dielectric columns in which the forming directions of the coupling grooves are mutually intersecting. Since the coupling occurs and the attenuation pole is formed, the TM double mode dielectric resonator device that functions as a bandpass filter having excellent attenuation characteristics can be obtained.
【００２４】請求項２に係るＴＭ二重モード誘電体共振
器装置によれば、隣接する複数の複合誘電体柱間でそれ
ぞれ逆位相のとび結合が生じるため、同位相のとび結合
による減衰特性の悪化がなくなり、例えば通過帯域の高
域側と低域側にそれぞれ近接する位置に減衰極を設ける
ことによって、高域と低域の何れの減衰特性も改善した
ＴＭ二重モード誘電体共振器装置が得られる。According to the TM double mode dielectric resonator device of the second aspect, since the anti-phase jump coupling is generated between each of a plurality of adjacent composite dielectric columns, the attenuation characteristics due to the in-phase jump coupling are generated. A TM double-mode dielectric resonator device in which deterioration is eliminated and, for example, attenuation characteristics are improved in both the high band and the low band by providing attenuation poles at positions close to the high band side and the low band side of the pass band, respectively. Is obtained.
【００２５】また、請求項１または２に係るＴＭ二重モ
ード誘電体共振器装置によれば、磁界結合用窓の結合方
向の選択性を適宜設定することによって、減衰特性を広
範囲に亘って設定することが可能となる。According to the TM double mode dielectric resonator device of the first or second aspect, the attenuation characteristic is set over a wide range by appropriately setting the selectivity of the coupling direction of the magnetic field coupling window. It becomes possible to do.
【図１】第１の実施例に係るＴＭ二重モード誘電体共振
器装置の一部である１ユニットの構成を示す分解斜視図
である。FIG. 1 is an exploded perspective view showing a configuration of one unit which is a part of a TM double mode dielectric resonator device according to a first embodiment.
【図２】第１の実施例に係るＴＭ二重モード誘電体共振
器装置の構成を示す図であり、（Ａ）は金属カバーを取
り外した状態における上面図、（Ｂ）は同じく金属カバ
ーを取り外した状態における正面図である。2A and 2B are diagrams showing a configuration of a TM double mode dielectric resonator device according to the first embodiment, FIG. 2A is a top view with a metal cover removed, and FIG. It is a front view in the removed state.
【図３】第１の実施例に係るＴＭ二重モード誘電体共振
器装置の各部の構成を示す一部破断部分分解斜視図であ
る。FIG. 3 is a partially cutaway partially exploded perspective view showing the configuration of each part of the TM double mode dielectric resonator device according to the first embodiment.
【図４】第１の実施例に係るＴＭ二重モード誘電体共振
器装置の周波数特性図である。FIG. 4 is a frequency characteristic diagram of the TM double mode dielectric resonator device according to the first embodiment.
【図５】第２の実施例に係るＴＭ二重モード誘電体共振
器装置の各部の構成を示す一部破断部分分解斜視図であ
る。FIG. 5 is a partially cutaway partially exploded perspective view showing the configuration of each part of the TM double mode dielectric resonator device according to the second embodiment.
【図６】第２の実施例に係るＴＭ二重モード誘電体共振
器装置の周波数特性図である。FIG. 6 is a frequency characteristic diagram of the TM double mode dielectric resonator device according to the second embodiment.
【図７】ＴＭ二重モード誘電体共振器の共振モードの説
明図である。FIG. 7 is an explanatory diagram of resonance modes of a TM dual mode dielectric resonator.
【図８】３つのＴＭ二重モード誘電体共振器を用いた６
段の共振器からなる装置の等価回路図である。FIG. 8: 6 using three TM dual mode dielectric resonators
It is an equivalent circuit diagram of the apparatus which consists of a resonator of a stage.
【図９】従来のＴＭ二重モード誘電体共振器装置の各部
の構成を示す一部破断部分分解斜視図である。FIG. 9 is a partially cutaway, partially exploded perspective view showing the configuration of each part of a conventional TM dual mode dielectric resonator device.
【図１０】図９に示すＴＭ二重モード誘電体共振器装置
の周波数特性図である。10 is a frequency characteristic diagram of the TM dual mode dielectric resonator device shown in FIG.
１０−複合誘電体柱 １１，１２−誘電体柱 １３−キャビティ １４−仕切板 １５，１６−外導体 １７−スリット状の導体非形成部（磁界結合用窓） １８−金属ケース １９−金属板 ２０，２１−同軸コネクタ ２２，２３−結合ループ 10-Composite Dielectric Column 11, 12-Dielectric Column 13-Cavity 14-Partition Plate 15, 16-Outer Conductor 17-Slit-shaped Conductor Non-Forming Part (Window for Magnetic Field Coupling) 18-Metal Case 19-Metal Plate 20 , 21-coaxial connector 22, 23-coupling loop
Claims (2)
状からなり、該２つの誘電体柱の交差部に結合用溝を形
成した複数の複合誘電体柱を、周囲を外導体で囲んだ空
間内に平行に配置するとともに、隣接する複合誘電体柱
のうち平行な２つの誘電体柱同士を選択的に磁界結合さ
せる磁界結合用窓を各複合誘電体柱間に設けたＴＭ二重
モード誘電体共振器装置において、 前記複数の複合誘電体柱のうち少なくとも１つの複合誘
電体柱に設けた前記結合用溝の形成方向を、他の複合誘
電体柱に設けた結合用溝の形成方向に交差させたことを
特徴とするＴＭ二重モード誘電体共振器装置。1. A plurality of composite dielectric pillars each having a shape in which two dielectric pillars are crossed and a coupling groove is formed at the intersection of the two dielectric pillars, and the circumference is surrounded by an outer conductor. The TM double mode in which the magnetic field coupling windows for arranging in parallel in the space and for selectively magnetically coupling two parallel dielectric rods of the adjacent composite dielectric columns are provided between the composite dielectric columns. In the dielectric resonator device, the formation direction of the coupling groove provided in at least one composite dielectric column among the plurality of composite dielectric columns is defined as the formation direction of the coupling groove provided in another composite dielectric column. TM dual mode dielectric resonator device characterized by being crossed with.
成方向が、該複数の複合誘電体柱の配置順に交互に交差
方向となる関係で前記結合用溝を形成した請求項１記載
のＴＭ二重モード誘電体共振器装置。2. The coupling groove is formed in such a manner that the formation direction of the coupling groove of the plurality of composite dielectric columns alternates with the arrangement direction of the plurality of composite dielectric columns in the intersecting direction. TM dual mode dielectric resonator device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11655294A JP3473107B2 (en) | 1994-05-30 | 1994-05-30 | TM dual mode dielectric resonator device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11655294A JP3473107B2 (en) | 1994-05-30 | 1994-05-30 | TM dual mode dielectric resonator device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07321506A true JPH07321506A (en) | 1995-12-08 |
| JP3473107B2 JP3473107B2 (en) | 2003-12-02 |
Family
ID=14689945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11655294A Expired - Lifetime JP3473107B2 (en) | 1994-05-30 | 1994-05-30 | TM dual mode dielectric resonator device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3473107B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100232486B1 (en) * | 1996-11-27 | 1999-12-01 | 윤상원 | Small size cross coupling filter using dielectric coaxial cable resonator array |
| KR100255256B1 (en) * | 1996-06-25 | 2000-05-01 | 무라타 야스타카 | Dielectric filter and dielectric duplexer |
| US6965283B2 (en) | 2003-04-02 | 2005-11-15 | Murata Manufacturing Co., Ltd. | Dielectric resonator device, communication filter, and communication unit for mobile communication base station |
| JP2012199623A (en) * | 2011-03-18 | 2012-10-18 | Ube Ind Ltd | Dielectric resonator component |
-
1994
- 1994-05-30 JP JP11655294A patent/JP3473107B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100255256B1 (en) * | 1996-06-25 | 2000-05-01 | 무라타 야스타카 | Dielectric filter and dielectric duplexer |
| KR100232486B1 (en) * | 1996-11-27 | 1999-12-01 | 윤상원 | Small size cross coupling filter using dielectric coaxial cable resonator array |
| US6965283B2 (en) | 2003-04-02 | 2005-11-15 | Murata Manufacturing Co., Ltd. | Dielectric resonator device, communication filter, and communication unit for mobile communication base station |
| JP2012199623A (en) * | 2011-03-18 | 2012-10-18 | Ube Ind Ltd | Dielectric resonator component |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3473107B2 (en) | 2003-12-02 |
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