JP3500568B2 - Duplexer - Google Patents
DuplexerInfo
- Publication number
- JP3500568B2 JP3500568B2 JP19205199A JP19205199A JP3500568B2 JP 3500568 B2 JP3500568 B2 JP 3500568B2 JP 19205199 A JP19205199 A JP 19205199A JP 19205199 A JP19205199 A JP 19205199A JP 3500568 B2 JP3500568 B2 JP 3500568B2
- Authority
- JP
- Japan
- Prior art keywords
- duplexer
- semi
- coaxial
- main body
- coupling
- 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.)
- Expired - Fee Related
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- Control Of Motors That Do Not Use Commutators (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は分波器、特に半同軸
型帯域通過ろ波器を備える分波器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a duplexer, and more particularly to a duplexer having a semi-coaxial bandpass filter.
【０００２】[0002]
【従来の技術】斯る分波器は、一般に複数の帯域通過ろ
波器と分岐部とにより構成されているが、近年分波器の
小型化の要求が強まっている。この要求に応える為に、
例えば特開昭６３−３０８４０１号公報には図７に示す
如き同軸型分波器が開示されている。2. Description of the Related Art Generally, such a demultiplexer is composed of a plurality of band pass filters and a branching section, but in recent years, there has been an increasing demand for miniaturization of the demultiplexer. In order to meet this demand,
For example, Japanese Patent Laid-Open No. 63-308401 discloses a coaxial type duplexer as shown in FIG.
【０００３】斯る従来の分波器１００は、図７に示す如
く略矩形状の筐体１１５の長手方向の一端に設けられた
共通端子１０４と他端に設けられた１対の端子１０５、
１０６を有する。この筐体１１５の長手方向の両側に沿
って複数の半同軸型共振器が一端側から他端側に向けて
２列に縦続結合されている。各半同軸型共振器は、円筒
空洞部１１０、１１４内の円形空洞部１１３の中心に配
置形成された共振棒１１１より成る。隣接する半同軸型
共振器間には結合用切欠き１１２が形成されている。共
通端子１０４と、両側の半同軸共振器間は分岐部１１６
を有する導体１０７にて結合導体１０８、１０９に接続
される。また、端子１０５、１０６も両側の半同軸共振
器の結合導体１０８、１０９に接続されている。As shown in FIG. 7, such a conventional duplexer 100 has a common terminal 104 provided at one end in the longitudinal direction of a substantially rectangular casing 115 and a pair of terminals 105 provided at the other end.
With 106. A plurality of semi-coaxial resonators are cascade-connected in two rows from one end side to the other end side along both sides of the casing 115 in the longitudinal direction. Each of the semi-coaxial resonators is composed of a resonance rod 111 arranged and formed in the center of a circular cavity 113 inside the cylindrical cavities 110 and 114. A coupling notch 112 is formed between adjacent semi-coaxial resonators. A branch section 116 is provided between the common terminal 104 and the semi-coaxial resonators on both sides.
Is connected to the coupling conductors 108 and 109 by a conductor 107 having a. The terminals 105 and 106 are also connected to the coupling conductors 108 and 109 of the semi-coaxial resonators on both sides.
【０００４】このように縦続接続された複数の半同軸型
共振器は、異なる共振周波数を有する帯域ろ波器を構成
する。The plurality of semi-coaxial resonators cascaded in this way constitute a bandpass filter having different resonance frequencies.
【０００５】[0005]
【発明が解決しようとする課題】上述した従来の分波器
は、分波器の外形や入出力端子位置が制限されていて、
分波器を実装する装置の分波器に対する外形及び入出力
端子位置の種々の要求に十分応えることができないとい
う問題がある。その理由は、分波器の帯域通過ろ波器を
複数個縦続に半同軸型共振器を結合接続して構成してい
る為である。SUMMARY OF THE INVENTION In the above-mentioned conventional duplexer, the external shape of the duplexer and the input / output terminal positions are limited,
There is a problem in that it is not possible to sufficiently meet various requirements regarding the outer shape and the input / output terminal position of the demultiplexer in which the demultiplexer is mounted. The reason is that a plurality of bandpass filters of the demultiplexer are connected in cascade to form a semi-coaxial resonator.
【０００６】また、従来の分波器にあっては、分波部の
形状が限定され、分波器自体の外形が大きくなるという
問題がある。その理由は、半同軸共振器の結合方向と同
一方向に分波器からの結合導体がある為である。Further, in the conventional duplexer, there is a problem that the shape of the duplexer is limited and the external shape of the duplexer itself becomes large. The reason is that the coupling conductor from the duplexer exists in the same direction as the coupling direction of the semi-coaxial resonator.
【０００７】本発明の目的は、実装する装置の要求に合
致した形状と入出力端子位置を満足する分波器を提供す
ることである。An object of the present invention is to provide a duplexer satisfying a shape and an input / output terminal position which meet the requirements of a device to be mounted.
【０００８】[0008]
【課題を解決するための手段】前述の課題を解決するた
め、本発明による分波器は、次のような特徴的な構成を
採用している。In order to solve the above-mentioned problems, the duplexer according to the present invention adopts the following characteristic structure.
【０００９】 （１）略矩形状の本体に共通端子と１対
の端子間に複数個の半同軸型共振器をそれぞれ縦続接続
して構成する分波器において、前記半同軸型共振器は、
前記本体上に非直線上に配置し、隣接する前記半同軸型
共振器の円筒空洞部間に結合用切欠きを形成するととも
に、前記複数の半同軸型共振器のうち前記本体の短辺に
沿う前記半同軸型共振器は、前記短辺に対して非平行に
配置される分波器。(1) In a duplexer configured by cascade-connecting a plurality of semi-coaxial resonators between a common terminal and a pair of terminals on a substantially rectangular body, the semi-coaxial resonator is
Together when placed in a non-straight line on said body to form a notch for coupling between the cylindrical cavity adjacent the semi-coaxial resonator
The short side of the main body among the plurality of semi-coaxial resonators
The semi-coaxial resonator along is non-parallel to the short side.
Splitter to be placed .
【００１０】（２）前記共通端子及び前記１対の端子
は、それぞれ前記本体の相互に対向する長辺に配置する
上記（１）の分波器。(2) The duplexer according to (1), wherein the common terminal and the pair of terminals are respectively arranged on long sides of the main body which face each other.
【００１１】（３）前記複数の半同軸型共振器は、前記
本体に略コ字状に配置される上記（１）又は（２）の分
波器。(3) The duplexer according to (1) or (2) above, wherein the plurality of semi-coaxial resonators are arranged in a substantially U-shape in the main body.
【００１２】[0012]
【００１３】[0013]
【００１４】[0014]
【発明の実施の形態】以下、本発明による分波器の好適
実施形態例を添付図、特に図１乃至図６を参照して詳細
に説明する。BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the duplexer according to the present invention will be described below in detail with reference to the accompanying drawings, particularly FIGS. 1 to 6.
【００１５】先ず、図１は、本発明による分波器の第１
実施形態例の分解斜視図であり、図２は図１の分波器の
本体上面図を示す。本発明による分波器は、本体１とカ
バー２より構成される。本体１は略矩形であり、その長
手方向の一方の側端面に共通端子４が配置され、他方の
側端面に高域側端子５と低域側端子６が配置される。ま
た、本体１の上面には、分岐点１６から上述した一方の
側端面に沿って延びる分波部７が形成され、これを介し
て各結合導体８、９に接続されている。この結合導体
８、９からそれぞれ端子５、６に接続される結合導体
８、９に向って、矩形本体１の端縁に沿って略コ字状に
複数の半同軸型共振器１３が縦続して形成されている。
各半同軸型共振器１３は、円筒空洞部１０と中央の共振
棒１１とより構成される。この特定例においては、共通
端子４から各端子５、６間に７個の半同軸型共振器１３
を有する。隣接する半同軸型共振器１３間は、結合用切
欠き１２を有する。First, FIG. 1 shows a first demultiplexer according to the present invention.
FIG. 2 is an exploded perspective view of the embodiment, and FIG. 2 is a top view of the main body of the duplexer shown in FIG. 1. The duplexer according to the present invention comprises a main body 1 and a cover 2. The main body 1 has a substantially rectangular shape, and the common terminal 4 is disposed on one side end surface in the longitudinal direction thereof, and the high frequency side terminal 5 and the low frequency side terminal 6 are disposed on the other side end surface thereof. Further, a branching portion 7 extending from the branch point 16 along the one side end surface described above is formed on the upper surface of the main body 1, and is connected to the coupling conductors 8 and 9 via the branching portion 7. From the coupling conductors 8 and 9 toward the coupling conductors 8 and 9 connected to the terminals 5 and 6, respectively, a plurality of semi-coaxial resonators 13 are cascaded in a substantially U-shape along the edge of the rectangular main body 1. Is formed.
Each semi-coaxial resonator 13 is composed of a cylindrical cavity portion 10 and a central resonance rod 11. In this particular example, seven semi-coaxial resonators 13 are provided between the common terminal 4 and each terminal 5,6.
Have. A coupling notch 12 is provided between the adjacent semi-coaxial resonators 13.
【００１６】これら複数の半同軸型共振器１３は、この
特定例にあっては、各辺に３個のコ字状配置である。本
体１中の複数の半同軸型共振器１３は、高域側帯域ろ波
器１４と、低域側帯域ろ波器１５として配置されてい
る。上述の如く、共通端子４の中心導体は、分波部７に
接続され、高域側用結合導体８と低域側用結合導体９と
に分岐されている。共振棒１１は、一端短絡であり、他
端開放されている。The plurality of semi-coaxial resonators 13 are arranged in three U-shapes on each side in this specific example. The plurality of semi-coaxial resonators 13 in the main body 1 are arranged as a high frequency band filter 14 and a low frequency band filter 15. As described above, the central conductor of the common terminal 4 is connected to the demultiplexing unit 7 and is branched into the high frequency side coupling conductor 8 and the low frequency side coupling conductor 9. The resonance rod 11 is short-circuited at one end and opened at the other end.
【００１７】カバー２は、本体１と実質的に同じ寸法の
矩形状である。このカバー２には、上述した各半同軸型
共振器１３に対応して複数の調整用ビス３が設けられて
いる。The cover 2 has a rectangular shape having substantially the same size as the main body 1. The cover 2 is provided with a plurality of adjusting screws 3 corresponding to the above-described semi-coaxial resonators 13.
【００１８】次に、図６は、図１及び図２に示した本発
明による分波器の電気回路図である。図６に示す如く、
分波器は、共通端子４と高域側端子５及び低域側端子６
間にそれぞれ共振周波数ｆｈの高域側帯域通過ろ波器１
４と、共振周波数ｆｌの低域側帯域ろ波器１５とが配置
されている。これにより、共通端子４から入力されたｆ
ｈ周波数の信号は高域側端子５から、ｆｌ周波数の信号
は低域側端子６からそれぞれ出力される。反対にｆｈ周
波数の信号は低域側端子６に、ｆｌ周波数の信号は高域
側端子５には出力されない。このときｆｈ周波数の信号
は、高域側帯域通過ろ波器１４の、またｆｌ周波数の信
号は低域側帯域通過ろ波器１５の通過損失を受けるのみ
である。Next, FIG. 6 is an electric circuit diagram of the duplexer according to the present invention shown in FIGS. As shown in FIG.
The duplexer includes a common terminal 4, a high frequency side terminal 5 and a low frequency side terminal 6
High-side band pass filter 1 having resonance frequency fh between
4 and a low frequency band filter 15 having a resonance frequency fl. As a result, f input from the common terminal 4
A signal of h frequency is output from the high frequency side terminal 5, and a signal of fl frequency is output from the low frequency side terminal 6. On the contrary, the signal of fh frequency is not output to the low frequency side terminal 6 and the signal of fl frequency is not output to the high frequency side terminal 5. At this time, the signal of the fh frequency only receives the passage loss of the high band side pass filter 14, and the signal of the fl frequency only receives the passage loss of the low band pass filter 15.
【００１９】尚、図２の上面図において、分波点１６か
ら高域側結合導体８と低域側結合導体９との距離が異な
るのは、分波部７によるｆｈ周波数の信号及びｆｌ周波
数の信号の位相調整を行う為である。In the top view of FIG. 2, the distance between the high-frequency side coupling conductor 8 and the low-frequency side coupling conductor 9 from the demultiplexing point 16 is different because the demultiplexing section 7 has a signal of fh frequency and fl frequency. This is because the phase of the signal of is adjusted.
【００２０】[0020]
【発明の他の実施の形態】次に、図３乃至図５を参照し
て、本発明による分波器の他の実施の形態を説明する。Other Embodiments of the Invention Next, another embodiment of the duplexer according to the present invention will be described with reference to FIGS.
【００２１】先ず、図３は本発明による分波器の第２実
施形態例の図２と同様の上面図を示す。この分波器は、
第１実施形態例と基本構成は類似するので、対応する構
成要素には同じ参照符号を使用している。この第２実施
形態例の分波器は、端子の配置について更に改善を行っ
ている。即ち、分波器７の分波点１６から高域側結合導
体８及び低域側結合導体９への距離の違いを半同軸型共
振器１７、１８、１９（本体１の短辺に沿い配置される
３個の半同軸型共振器）の配置により吸収している。こ
のことを以下に詳述する。First, FIG. 3 shows a top view similar to FIG. 2 of the second embodiment of the duplexer according to the present invention. This duplexer
Since the basic configuration is similar to that of the first embodiment, the same reference numerals are used for corresponding components. In the duplexer of the second embodiment, the arrangement of terminals is further improved. That is, the difference in the distance from the demultiplexing point 16 of the demultiplexer 7 to the high-frequency side coupling conductor 8 and the low-frequency side coupling conductor 9 is determined by the semi-coaxial resonators 17, 18, and 19 (along the short side of the main body 1). It is absorbed by the arrangement of the three semi-coaxial resonators. This will be described in detail below.
【００２２】つまり、高域側端子５及び低域側端子６を
本体１上で平行移動させて、これら両端子５、６が共通
端子４の中心を通る線を中心に線対称位置となるように
する。従って、本体１に形成されている高域側帯域通過
ろ波器１４及び低域側帯域通過ろ波器１５の中央の３つ
の半同軸型共振器１７、１８、１９が、本体１の側縁に
対して斜めに配置されることとなる。このとき、これら
中央に配置される高域側帯域通過ろ波器１４及び低域側
帯域通過ろ波器１５の中央の３個の半同軸型共振器１
７、１８、１９間の結合用切欠き１２’は、図４の拡大
図中に示すこれら半同軸型共振器１７、１８、１９の中
心線を通る中心線２０と平行になるよう形成される。That is, the high-frequency side terminal 5 and the low-frequency side terminal 6 are moved in parallel on the main body 1 so that both terminals 5 and 6 are line symmetrical with respect to a line passing through the center of the common terminal 4. To Therefore, the three semi-coaxial resonators 17, 18 and 19 in the center of the high band side pass filter 14 and the low band side pass filter 15 formed in the body 1 are the side edges of the body 1. It will be arranged diagonally with respect to. At this time, the three semi-coaxial resonators 1 in the center of the high band side pass filter 14 and the low band side pass filter 15 arranged in the center
The coupling notch 12 'between 7, 18 and 19 is formed so as to be parallel to the center line 20 passing through the center lines of these semi-coaxial resonators 17, 18 and 19 shown in the enlarged view of FIG. .
【００２３】尚、この第２実施形態例の分波器は、共通
端子４を中心に端子５、６が対称に配置されるので、分
波器本体を上下逆に取り付けても接続先の端子位置が移
動することなく、高域側端子５と低域側端子６の入れ替
えが可能になる。In the duplexer of the second embodiment, since the terminals 5 and 6 are symmetrically arranged with the common terminal 4 as the center, even if the duplexer body is mounted upside down, the connection destination terminal The high frequency side terminal 5 and the low frequency side terminal 6 can be exchanged without moving the position.
【００２４】次に、図５は本発明による分波器の第３実
施形態例を示す図４と同様の部分拡大図である。この実
施例の分波器も第１及び第２実施例の分波器と基本的に
同じ構成であるが、本体１の短辺に沿う３個の半同軸型
共振器１７、１８、１９の結合用切欠き１２’’は、本
体１の短辺２１と平行になるよう形成する。このように
することにより、分波器の本体１の各辺に対して斜め加
工をする必要がないので、製造／加工が容易になり製造
コストが低減可能である。Next, FIG. 5 is a partially enlarged view similar to FIG. 4 showing a third embodiment of the duplexer according to the present invention. The duplexer of this embodiment also has basically the same configuration as the duplexers of the first and second embodiments, except that the three semi-coaxial resonators 17, 18, 19 along the short side of the main body 1 The coupling notch 12 ″ is formed so as to be parallel to the short side 21 of the main body 1. By doing so, since it is not necessary to perform diagonal processing on each side of the main body 1 of the duplexer, manufacturing / processing is facilitated and manufacturing cost can be reduced.
【００２５】以上、本発明による分波器の好適実施形態
例を詳述したが本発明は斯る特定例のみに限定されるべ
きではなく、本発明の要旨を逸脱することなく種々の変
形変更が可能である。例えば、共通端子４と両端子５、
６間の半同軸型共振器の個数は１個に限定されず必要と
する特性に応じて任意個数とすることが可能である。The preferred embodiment of the duplexer according to the present invention has been described above in detail, but the present invention should not be limited to such a specific example, and various modifications may be made without departing from the gist of the present invention. Is possible. For example, common terminal 4 and both terminals 5,
The number of semi-coaxial resonators between the six is not limited to one, and can be any number depending on the required characteristics.
【００２６】[0026]
【発明の効果】上述の説明から理解される如く、本発明
の分波器によると以下の如き種々の顕著な効果を有す
る。As can be understood from the above description, the duplexer of the present invention has various remarkable effects as follows.
【００２７】第１に、分波器の形状を実施形態例に合わ
せて設定することが可能である。その理由は、帯域通過
ろ波器を構成している半同軸型共振器の配置及び結合角
度９０゜にした為である。First, the shape of the duplexer can be set according to the embodiment. The reason is that the arrangement of the semi-coaxial type resonator constituting the band pass filter and the coupling angle are set to 90 °.
【００２８】第２に、接続先の装置の入出力端子条件に
合致するように共通端子、高域側端子及び低域側端子の
位置を設定することが可能である。また、共通端子を中
心として、分波器本体を上下反転しても接続先の端子位
置を変更することなく、高域側端子と低域側端子を入れ
替え可能である。その理由は、分波器の形状を変えるこ
となく帯域通過ろ波器を構成している半同軸型共振器の
結合角度を変更している為である。また、帯域通過ろ波
器の一端を結合接続する結合導体の共振棒に対する結合
方向を限定していない為である。Secondly, it is possible to set the positions of the common terminal, the high frequency side terminal and the low frequency side terminal so as to match the input / output terminal condition of the connected device. Further, even if the duplexer body is turned upside down around the common terminal, the high frequency side terminal and the low frequency side terminal can be interchanged without changing the terminal position of the connection destination. The reason is that the coupling angle of the semi-coaxial resonator forming the bandpass filter is changed without changing the shape of the branching filter. This is also because the coupling direction of the coupling conductor that couples and connects one end of the bandpass filter to the resonance rod is not limited.
【００２９】第３に、分波器製造コスト及び時間の低減
又は知縮を図ることが可能である。その理由は、分波器
本体の外形の縦及び横方向に対して半同軸型共振器間の
結合用切欠きの斜め加工を不要とする為に複雑な加工が
排除できる為である。Third, it is possible to reduce or reduce the manufacturing cost and time of the duplexer. The reason is that complicated processing can be eliminated because it is not necessary to obliquely process the coupling notch between the semi-coaxial resonators in the vertical and horizontal directions of the outer shape of the duplexer body.
【図１】本発明による分波器の第１実施形態例の分解斜
視図である。FIG. 1 is an exploded perspective view of a first embodiment of a duplexer according to the present invention.
【図２】図１の分波器本体の上面図である。2 is a top view of the duplexer body of FIG. 1. FIG.
【図３】本発明による分波器の第２実施形態例の本体の
上面図である。FIG. 3 is a top view of the main body of the second embodiment of the duplexer according to the present invention.
【図４】図３の分波器の一端部の拡大図である。FIG. 4 is an enlarged view of one end of the duplexer of FIG.
【図５】本発明による分波器の第３実施形態例の図４と
同様の部分拡大図である。FIG. 5 is a partially enlarged view similar to FIG. 4 of the third embodiment of the duplexer according to the present invention.
【図６】本発明による分波器の電気回路図である。FIG. 6 is an electric circuit diagram of the duplexer according to the present invention.
【図７】従来の分波器の上面図である。FIG. 7 is a top view of a conventional duplexer.
１ 本体 ２ カバー ４ 共通端子 ５、６ １対の端子 ８、９ 結合導体 １０ 円筒空洞部 １１ 共振棒 １２、１２’、１２’’ 結合用切欠き １３ 半同軸型共振器 ２１ 分波器の短辺 1 body 2 cover 4 common terminals 5,6 1 pair of terminals 8, 9 coupling conductor 10 Cylindrical cavity 11 resonance rod 12, 12 ', 12' 'coupling notch 13 Semi-coaxial resonator 21 Short side of duplexer
Claims (3)
に複数個の半同軸型共振器をそれぞれ縦続接続して構成
する分波器において、 前記半同軸型共振器は、前記本体上に非直線上に配置
し、隣接する前記半同軸型共振器の円筒空洞部間に結合
用切欠きを形成するとともに、前記複数の半同軸型共振
器のうち前記本体の短辺に沿う前記半同軸型共振器は、
前記短辺に対して非平行に配置されることを特徴とする
分波器。1. A duplexer comprising a plurality of semi-coaxial resonators connected in cascade between a common terminal and a pair of terminals in a substantially rectangular body, wherein the semi-coaxial resonator is The plurality of semi-coaxial resonances are arranged on the main body in a non-linear manner, and notches for coupling are formed between the cylindrical cavities of the adjacent semi-coaxial resonators.
The semi-coaxial resonator along the short side of the body of the container,
The duplexer is arranged non-parallel to the short side .
ぞれ前記本体の相互に対向する長辺に配置することを特
徴とする請求項１に記載の分波器。2. The duplexer according to claim 1, wherein the common terminal and the pair of terminals are arranged on long sides of the main body which face each other.
略コ字状に配置されることを特徴とする請求項１又は２
に記載の分波器。3. The plurality of semi-coaxial resonators are arranged in the body in a substantially U-shape.
The duplexer described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19205199A JP3500568B2 (en) | 1999-07-06 | 1999-07-06 | Duplexer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19205199A JP3500568B2 (en) | 1999-07-06 | 1999-07-06 | Duplexer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001024404A JP2001024404A (en) | 2001-01-26 |
| JP3500568B2 true JP3500568B2 (en) | 2004-02-23 |
Family
ID=16284809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19205199A Expired - Fee Related JP3500568B2 (en) | 1999-07-06 | 1999-07-06 | Duplexer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3500568B2 (en) |
-
1999
- 1999-07-06 JP JP19205199A patent/JP3500568B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001024404A (en) | 2001-01-26 |
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