JP2548810B2 - Waveguide demultiplexer - Google Patents
Waveguide demultiplexerInfo
- Publication number
- JP2548810B2 JP2548810B2 JP1305124A JP30512489A JP2548810B2 JP 2548810 B2 JP2548810 B2 JP 2548810B2 JP 1305124 A JP1305124 A JP 1305124A JP 30512489 A JP30512489 A JP 30512489A JP 2548810 B2 JP2548810 B2 JP 2548810B2
- Authority
- JP
- Japan
- Prior art keywords
- waveguide
- coupling hole
- filter
- tube axis
- main
- 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
Links
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、マイクロ波帯およびミリ波帯で使用され
る導波管形分波器に関するものである。TECHNICAL FIELD The present invention relates to a waveguide demultiplexer used in a microwave band and a millimeter wave band.
第４図は例えば昭和39年２月25日に丸善（株）より発
行された通研叢書「マイクロ波およびミリ波回路」小口
著のP278に示された従来の導波管形分波器を示す概略構
成図であり、図において、１は主導波管、2,3は結合
孔、12は金属セプタム、6,7は方形導波管、8,9は電波の
偏波方向を表わす。Figure 4 shows the conventional waveguide demultiplexer shown in P278 by Tsuchiguchi, "Microwave and Millimeter Wave Circuits" published by Maruzen Co., Ltd. on February 25, 1964, for example. It is a schematic configuration diagram shown, in which 1 is a main waveguide, 2 and 3 are coupling holes, 12 is a metal septum, 6 and 7 are rectangular waveguides, and 8 and 9 are polarization directions of radio waves.
結合孔2,3は各々方形導波管6,7と主導波管１の接合面
のほぼ中央に設けられており、また金属セプタム12は主
導波管１の管軸中心にて方形導波管７の長辺と平行とな
るように取り付けられている。The coupling holes 2 and 3 are provided substantially at the center of the joint surface between the rectangular waveguides 6 and 7 and the main waveguide 1, respectively, and the metal septum 12 is located at the center of the main waveguide 1 axis. It is attached so that it is parallel to the long side of 7.
次に動作について説明する。上記のように構成された
分波器に入射するまでに各々直交する２つの直線偏波8,
9に偏波変換された電波は図中右側から主導波管１内を
伝搬し、金属セプタム12を通過しようとする。このとき
波９は金属セプタム12と直交しているため、この金属セ
プタムの影響を受けずに方形導波管７にそのまま伝搬す
る。ここで、結合孔２を主導波管１と方形導波管７との
整合がうまく調整される大きさと形状に選んでおけば、
方形導波管７にはほとんど損失なく波９を取り出すこと
ができる。Next, the operation will be described. Two linearly polarized waves that are orthogonal to each other before they enter the demultiplexer configured as described above.
The radio wave whose polarization has been converted into 9 propagates from the right side in the figure through the main waveguide 1 and tries to pass through the metal septum 12. At this time, since the wave 9 is orthogonal to the metal septum 12, it propagates to the rectangular waveguide 7 as it is without being affected by the metal septum. Here, if the coupling hole 2 is selected to have a size and a shape in which the matching between the main waveguide 1 and the rectangular waveguide 7 is well adjusted,
The wave 9 can be taken out to the rectangular waveguide 7 with almost no loss.
また、波８は金属セプタム12と平行になっているの
で、金属セプタム12で反射され、入射方向と反対の方向
に伝搬する。ここで、波８の中心周波数をf2、主導波管
１内を伝搬する場合の基本モードの管内波長をλg2とす
る。このとき、結合孔３の中心位置が金属セプタム12の
端面からλg2/4及びλg2/4の奇数倍の距離に選ばれてい
れば、結合孔３の長手方向の磁界が最大となり、その位
置にある結合孔３を介して効率よく分波され、また結合
孔３の大きさおよび形状を、これに接続される方形導波
管６との整合がうまくいくように選ぶことにより、波８
をほとんど損失なく方向導波管６に取り出すことができ
る。Further, since the wave 8 is parallel to the metal septum 12, it is reflected by the metal septum 12 and propagates in the direction opposite to the incident direction. Here, the center frequency of the wave 8 is f 2 , and the guide wavelength of the fundamental mode when propagating in the main waveguide 1 is λg 2 . At this time, if the center position of the coupling hole 3 is chosen distance odd multiple of lambda] g 2/4 and lambda] g 2/4 from the end face of the metal septum 12, the longitudinal direction of the magnetic field of the coupling hole 3 is maximized, its The wavelength 8 is efficiently demultiplexed via the coupling hole 3 in the position, and the size and shape of the coupling hole 3 are selected so as to be well matched with the rectangular waveguide 6 connected thereto.
Can be taken out to the directional waveguide 6 with almost no loss.
以上により、互いに直交する２つの偏波を異なる２つ
の方形導波管に効率よく分波することができる。As described above, it is possible to efficiently demultiplex two polarized waves orthogonal to each other into two different rectangular waveguides.
従来の導波管形分波器は以上のように構成されている
ので、円形導波管内面に金属セプタムを設けるため、主
導波管と方形導波管と金属セプタムとを別々に製作し、
金属セプタムを設置した後、主導波管と方形導波管を組
み立てなければならず、部品点数が多く大形となるこ
と、また互いに直交する２つの電波を損失なく分波する
ためには、この金属セプタムの設定精度を厳しくしなけ
ればならない等の問題があった。Since the conventional waveguide demultiplexer is configured as described above, in order to provide the metal septum on the inner surface of the circular waveguide, the main waveguide, the rectangular waveguide, and the metal septum are separately manufactured,
After installing the metal septum, the main waveguide and the rectangular waveguide must be assembled, and the number of parts becomes large, and in order to split two radio waves orthogonal to each other without loss, this There was a problem that the setting accuracy of the metal septum had to be strict.
また、各方形導波管に分波される電波のうち、自分以
外の方形導波管に漏洩する量を非常に小さく制御しなけ
ればならない場合などは、相手側の方形導波管以降の信
号回路中に阻止用フィルタを設けなければならないなど
の問題があった。In addition, if the amount of radio waves split into each rectangular waveguide that leaks to other rectangular waveguides must be controlled to be extremely small, the signals after the other rectangular waveguide must be controlled. There was a problem that a blocking filter had to be provided in the circuit.
この発明は、上記のような課題を解消するためになさ
れたもので、部品点数を少なくし、製作を容易にできる
とともに、小形化を図り、また入射する電波の偏波と周
波数の両方の分波機能を兼ね備えた導波管形分波器を得
ることを目的とする。The present invention has been made in order to solve the above problems, the number of parts can be reduced, manufacturing can be facilitated, downsizing can be achieved, and both polarization and frequency of incident radio waves can be divided. An object is to obtain a waveguide type demultiplexer having a wave function.
この発明に係る導波管形分波器は、主導波管の管軸方
向の端面に導波管形フィルタを直結するとともに、主導
波管の周方向に分波する方形導波管を導波管形フィルタ
とし、主導波管の管軸方向と平行にしてそのＥ面を介し
て結合するようにしたものである。A waveguide type demultiplexer according to the present invention directly connects a waveguide type filter to an end face of a main waveguide in the tube axis direction, and guides a rectangular waveguide that demultiplexes in the circumferential direction of the main waveguide. This is a tubular filter which is arranged in parallel with the tube axis direction of the main waveguide and is coupled through its E-plane.
この発明における導波管形分波器においては、主導波
管の管軸方向端面に導波管形フィルタを直結したことに
より、従来の導波管形分波器の金属セプタムと同様の作
用を持たせることができ、また周方向の導波管形フィル
タを主導波管の管軸方向と平行にＥ面結合により設けた
ことにより、導波管形偏分波器の小型化が図れるととも
に、各々のフィルタが互いの漏洩を抑制する阻止フィル
タとしても作用する効果が得られるとともに、Ｅ面結合
された導波管形フィルタと、円形導波管とが、同一方向
の磁界を持つことにより、該導波管形フィルタと上記円
形導波管とを所要の特性が得られるように結合させるこ
とができる効果が得られる。In the waveguide type demultiplexer according to the present invention, by directly connecting the waveguide type filter to the end face in the tube axis direction of the main waveguide, the same action as that of the metal septum of the conventional waveguide type demultiplexer is achieved. Moreover, since the waveguide type filter in the circumferential direction is provided in parallel with the tube axis direction of the main waveguide by E-plane coupling, the waveguide type demultiplexer can be downsized, and The effect that each filter also acts as a blocking filter that suppresses mutual leakage is obtained, and the E-plane coupled waveguide filter and the circular waveguide have magnetic fields in the same direction, The effect that the waveguide filter and the circular waveguide can be coupled so as to obtain the required characteristics is obtained.
以下、この発明の一実施例を図について説明する。 An embodiment of the present invention will be described below with reference to the drawings.
第１図は本発明の一実施例による導波管形分波器を示
し、図において、１は第４図と同じ主導波管、２は主導
波管１の管軸方向端面のほぼ中央に設けられた結合孔、
３は主導波管１の周方向に、長手方向が主導波管１の管
軸方向と平行になるように設けられた結合孔、6,7は各
々異なった通過周波数帯域をもつ導波管形帯域通過フィ
ルタ、4a〜4c,5a〜5cは各々導波管形帯域通過フィルタ
6,7を構成するためのアイリスである。FIG. 1 shows a waveguide type duplexer according to an embodiment of the present invention. In the figure, 1 is the same main waveguide as in FIG. 4, and 2 is the center of the end face of the main waveguide 1 in the tube axial direction. Provided coupling hole,
3 is a coupling hole provided in the circumferential direction of the main waveguide 1 so that its longitudinal direction is parallel to the tube axis direction of the main waveguide 1, and 6 and 7 are waveguide types having different pass frequency bands. Band pass filter, 4a to 4c, 5a to 5c are waveguide band pass filters
Iris for constructing 6,7.
ここで、8,9は第４図同様、分波される電波の偏波方
向を表わしている。また各結合孔2,3の管軸方向の距離
は第４図の金属セプタムとの関係と同様にλg2/4あるい
はλg2/4の奇数倍に選ばれている。また、導波管形帯域
通過フィルタ６のアイリス4aと反対側の端面は金属導体
にて短絡端10として短絡されており、導波管形帯域通過
フィルタ６はそのＥ面を介して主導波管１と結合されて
いる。Here, as in FIG. 4, 8 and 9 represent the polarization directions of the demultiplexed radio waves. The distance in the tube axis direction of each coupling hole 2 is chosen an odd multiple of a fourth as with the relationship between the view of the metal septum lambda] g 2/4 or lambda] g 2/4. Further, the end face of the waveguide band pass filter 6 opposite to the iris 4a is short-circuited as a short-circuit end 10 by a metal conductor, and the waveguide band pass filter 6 is connected to the main waveguide through its E face. Combined with 1.
主導波管１の管軸方向端面に設けられた導波管形帯域
通過フィルタ７の構成部品のうち、結合孔２とアイリス
5aとの距離は通過周波数帯の中心周波数f1で共振するよ
うに選定されており、また結合孔２の大きさ，形状はア
イリス5a〜5cと合わせて、導波管形帯域通過フィルタ７
の入出力の反射が少なくするようなサセプタンス分布
（例えば、チェビシェフ分布）を持たせるように決定さ
れている。Of the components of the waveguide type bandpass filter 7 provided on the end face of the main waveguide 1 in the tube axis direction, the coupling hole 2 and the iris are included.
The distance from 5a is selected so as to resonate at the center frequency f 1 of the pass frequency band, and the size and shape of the coupling hole 2 are combined with the irises 5a to 5c, and the waveguide band pass filter 7 is used.
Is determined to have a susceptance distribution (for example, Chebyshev distribution) that reduces the reflection of the input and output.
これにより、従来の導波管形偏分波器と同様に、直線
偏波の入射波8,9が主導波管１を伝搬してきた場合、９
の偏波をもつ入射波は、結合孔２の面において、結合孔
２の長手方向に磁界が最大となるので、方形導波管の基
本モードであるTE10モードを励振して効率よく帯域通過
フィルタ７の出力端に取り出される。As a result, when the incident waves 8 and 9 of linearly polarized waves propagate through the main waveguide 1 as in the case of the conventional waveguide demultiplexer,
The incident wave with polarized wave has a maximum magnetic field in the longitudinal direction of the coupling hole 2 in the plane of the coupling hole 2, so it excites the TE 10 mode, which is the fundamental mode of the rectangular waveguide, and passes the band efficiently. It is taken out to the output end of the filter 7.
一方、入射波９と直交する偏波である電波８は結合孔
２の面にて結合孔２の短軸方向に磁界が最大となるが、
方形導波管のTE10モード及びTE101モードは、この方形
導波管の短辺方向に磁界成分を持たないので、励振され
ず、主導波管１側へ反射される。On the other hand, the electric wave 8 which is a polarized wave orthogonal to the incident wave 9 has the maximum magnetic field in the minor axis direction of the coupling hole 2 on the surface of the coupling hole 2.
The TE 10 mode and the TE 101 mode of the rectangular waveguide have no magnetic field component in the short side direction of the rectangular waveguide, so they are not excited and reflected to the main waveguide 1 side.
反射された波８について円形導波管内伝搬時の基本モ
ードであるTE11モードのみを考えると、もう一方の結合
孔３の位置が結合孔２からλg2/4あるいはλg2/4の奇数
倍の位置にあることから、結合孔３の長手方向に磁界最
大となり、また結合孔３は帯域通過フィルタ６の初段の
共振器内において、この結合孔３は方形導波管の短辺側
の側面に管軸方向と結合孔の長手方向が平行となり、か
つ、初段の共振器長ｌのほぼl/2のところに置かれてお
り、この点では方形導波管の基本共振TE101モードにお
いて、結合孔３の長手方向で磁界最大となるため、結合
孔３を介して効率よく分波される。この時アイリス4aと
短絡端10との距離ｌを通過周波数帯の中心周波数f2で共
振するように選定し、結合孔３の大きさ，形状について
はアイリス4a〜4cと合わせて帯域通過フィルタ６の入出
力の反射が少なくなるよう、上述と同じ手法にてサセプ
タンス分布を持たせるように決定すれば、入射波８は結
合孔３を介して効率良く帯域通過フィルタ６の出力端に
とり出される。Considering only the TE 11 mode is a fundamental mode at the time of the circular waveguide propagation for waves 8 reflected, lambda] g 2/4 or an odd multiple of lambda] g 2/4 position of the other coupling hole 3 from coupling holes 2 Since the magnetic field becomes maximum in the longitudinal direction of the coupling hole 3, the coupling hole 3 is located inside the resonator of the first stage of the bandpass filter 6, and the coupling hole 3 is a side surface on the short side of the rectangular waveguide. The tube axis direction and the longitudinal direction of the coupling hole are parallel to each other, and they are placed at approximately l / 2 of the resonator length l of the first stage. At this point, in the fundamental resonance TE 101 mode of the rectangular waveguide, Since the magnetic field becomes maximum in the longitudinal direction of the coupling hole 3, the light is efficiently demultiplexed through the coupling hole 3. At this time, the distance 1 between the iris 4a and the short-circuit end 10 is selected so as to resonate at the center frequency f 2 of the pass frequency band, and the size and shape of the coupling hole 3 are combined with the iris 4a to 4c and the band pass filter 6 is selected. The incident wave 8 is efficiently taken out to the output end of the bandpass filter 6 through the coupling hole 3 if the susceptance distribution is determined by the same method as described above so as to reduce the reflection of the input and output of.
以上は主導波管側からの入射を示したが、可逆の理に
てその反対の場合も同様の動作を行なう。Although the above shows the incident from the main waveguide side, the same operation is performed in the opposite case due to the reversible theory.
この実施例の導波管形分波器では、各々の端子に帯域
通過フィルタを直結しているので、互いに異なる通過帯
域をもち、かつ偏波が直交している場合、互いに自分の
通過帯域以外は減衰するので、漏洩阻止フィルタとして
の効果を得られるとともに、結合孔２が直接、帯域通過
フィルタ７の初段のサセプタンスを構成しているので、
管軸方向を最短にすることができる。In the waveguide type demultiplexer of this embodiment, since the bandpass filters are directly connected to the respective terminals, when they have different passbands and the polarizations are orthogonal to each other, they are different from each other. Is attenuated, the effect as a leakage prevention filter is obtained, and the coupling hole 2 directly constitutes the susceptance of the first stage of the bandpass filter 7.
The tube axis direction can be minimized.
また帯域通過フィルタ６を主導波管１の管軸と平行に
設けたことにより、管軸と垂直方向にも小形化され、か
つ入出力端子が一直線上に配置でき、しかも主導波管1,
フィルタ6,7およびそのアイリス4a〜4c,5a〜5cを一体に
成形できるので、複雑な導波管回路や導波管形分波器を
極力小型化する必要がある場合等に適している。Further, since the bandpass filter 6 is provided in parallel with the tube axis of the main waveguide 1, the size can be reduced in the direction perpendicular to the tube axis, and the input / output terminals can be arranged in a straight line.
Since the filters 6 and 7 and their irises 4a to 4c and 5a to 5c can be integrally formed, they are suitable for cases where it is necessary to miniaturize a complicated waveguide circuit or waveguide type duplexer.
なお、上記実施例において結合孔２と３の距離をλg2
/4あるいはλg2/4の奇数倍として説明したが、実際には
結合孔２の短辺方向に幅を持っていることと、帯域通過
フィルタ７の初段のサセプタンスを結合孔によって得て
いることや、製作上の工作精度などから、偏波８の入射
波の等価短絡面がずれるので、λg2/4あるいはλg2/4の
奇数倍から多少補正を施す必要がある。In the above embodiment, the distance between the coupling holes 2 and 3 is λg 2
/ 4 or has been described as an odd multiple of lambda] g 2/4, it actually that obtained and that has a width in the short side direction of the coupling hole 2, the first stage of the susceptance of the band-pass filter 7 by coupling hole and, the like working accuracy in manufacturing, the equivalent short-circuit plane of the incident wave polarization 8 is shifted, it is necessary to perform some correction from an odd multiple of lambda] g 2/4 or lambda] g 2/4.
第２図はこの発明の他の実施例による導波管形分波器
を示す概略構造図で、主導波管１の管軸方向に直結され
るフィルタが高域通過フィルタの場合である。11はこの
フィルタ７の内部に設けられるかあるいはフィルタ７と
同じ金属導体にて一体加工された金属導体部で、方形導
波管の長辺方向を短かく狭めることにより、低い周波数
帯が遮断され、この部分の管軸方向の長さを適当に選ぶ
ことにより低周波数帯域を十分減衰させ、高域通過フィ
ルタを得る一例である。こうした高域通過フィルタと帯
域通過フィルタを組合わせた場合においても、異なった
通過帯域をもち、かつ偏波が互いに直交している電波を
同様の動作にて分波でき、上記実施例と同様の効果を奏
することができる。FIG. 2 is a schematic structural view showing a waveguide type duplexer according to another embodiment of the present invention, in which the filter directly connected in the tube axis direction of the main waveguide 1 is a high-pass filter. Reference numeral 11 denotes a metal conductor portion which is provided inside the filter 7 or integrally formed with the same metal conductor as that of the filter 7. By narrowing the long side direction of the rectangular waveguide narrowly, a low frequency band is cut off. This is an example of obtaining a high-pass filter by adequately attenuating the low frequency band by appropriately selecting the length of this portion in the tube axis direction. Even when such a high-pass filter and a band-pass filter are combined, radio waves having different pass bands and polarized waves orthogonal to each other can be demultiplexed by the same operation, and similar to the above embodiment. It is possible to exert an effect.
第３図はこの発明のさらに他の実施例による導波管形
分波器を示す概略構造図で、主導波管１の周方向側に設
けられる帯域通過フィルタ６は同じものであって、主導
波管１の管軸方向端面に直結される帯域通過フィルタ７
が主導波管１の管軸と帯域通過フィルタ７の管軸が互い
に直交するように帯域通過フィルタ７の長辺の面上で接
続されたものである。前者の帯域通過フィルタ６につい
ては第１図と同様の動作にて分波される。後者の帯域通
過フィルタ７については接合面に設けられた結合孔２が
方形導波管の長辺面上にあり、かつアイリス5aと短絡端
10とのほぼ真ん中に、結合孔２の長手方向が帯域通過フ
ィルタの管軸と直交するようにＨ面を介して主導波管１
と結合されている。FIG. 3 is a schematic structural view showing a waveguide type duplexer according to still another embodiment of the present invention, in which the band pass filter 6 provided on the circumferential side of the main waveguide 1 is the same. Bandpass filter 7 directly connected to the end surface of the wave tube 1 in the axial direction of the tube.
Is connected on the surface of the long side of the bandpass filter 7 so that the tube axis of the main waveguide 1 and the tube axis of the bandpass filter 7 are orthogonal to each other. The former bandpass filter 6 is demultiplexed by the same operation as in FIG. Regarding the latter band pass filter 7, the coupling hole 2 provided in the joint surface is on the long side surface of the rectangular waveguide, and the iris 5a and the short-circuit end are provided.
The main waveguide 1 is arranged substantially in the middle of 10 through the H plane so that the longitudinal direction of the coupling hole 2 is orthogonal to the tube axis of the bandpass filter.
Is combined with
この場合においても、第１図にて示した実施例と同様
に方形空洞共振器の基本モード（TE101モード）におい
て、この結合孔２の長手方向に最大磁界となるので、上
記実施例と同様の効果を奏するとともに、導波管形分波
器の入出力端子を２方向に設ける場合に有効である。Also in this case, as in the embodiment shown in FIG. 1, in the fundamental mode (TE 101 mode) of the rectangular cavity resonator, the maximum magnetic field is in the longitudinal direction of the coupling hole 2, so that it is the same as the above embodiment. And is effective when the input / output terminals of the waveguide type duplexer are provided in two directions.
なお、上記各実施例ではフィルタの段数を３段の場合
について説明したが、この発明はフィルタの段数が３段
に限定されるものではない。In each of the above embodiments, the case where the number of filter stages is three has been described, but the present invention is not limited to the number of filter stages being three.
また、上記各実施例ではフィルタの構成をアイリス形
で説明したが、同様なサセプタンスを得られるものであ
れば、アイリス形に限定されるものではない。Further, in each of the above-described embodiments, the configuration of the filter is described as an iris type, but it is not limited to the iris type as long as the same susceptance can be obtained.
以上のように、この発明に係る導波管形分波器によれ
ば、主導波管の管軸方向端面にフィルタを直結し、かつ
主導波管の外周部に管軸と平行に帯域通過フィルタをＥ
面結合により設けるようにしたので、円形導波管の軸を
含む面内に設けられた結合孔を介してＥ面結合された導
波管形フィルタと、円形導波管とが、同一方向の磁界を
持つことにより、該導波管形フィルタと上記円形導波管
とを所要の特性が得られるように結合させることができ
るとともに、従来、主導波管内に設けていた金属セプタ
ムが不要となり、製作が機械加工のみで済むとともに、
主導波管の管軸方向および垂直方向に小型化を図ること
ができる効果がある。As described above, according to the waveguide demultiplexer according to the present invention, the filter is directly connected to the end surface of the main waveguide in the tube axial direction, and the bandpass filter is provided on the outer peripheral portion of the main waveguide in parallel with the tube axis. E
Since they are provided by surface coupling, the waveguide type filter and the circular waveguide, which are E-plane coupled through the coupling hole provided in the plane including the axis of the circular waveguide, are arranged in the same direction. By having a magnetic field, the waveguide type filter and the circular waveguide can be coupled so as to obtain the required characteristics, and the metal septum conventionally provided in the main waveguide becomes unnecessary, Manufacturing can be done only by machining,
There is an effect that the main waveguide can be downsized in the tube axis direction and the vertical direction.
さらに上記フィルタを設けたことにより、異なる通過
周波数帯間の漏洩を抑制する効果をも得ることができ
る。Further, by providing the above filter, it is possible to obtain an effect of suppressing leakage between different pass frequency bands.
第１図はこの発明の一実施例による導波管形分波器を示
す概略構成図、第２図はこの発明の他の実施例による導
波管形分波器を示す概略構成図、第３図はこの発明のさ
らに他の実施例による導波管形分波器を示す概略構成
図、第４図は従来の導波管形分波器を示す概略構成図で
ある。 図において、１は主導波管、2,3は結合孔、4,5はアイリ
ス、6,7は帯域通過フィルタである。 なお図中同一符号は同一又は相当部分を示す。FIG. 1 is a schematic configuration diagram showing a waveguide type demultiplexer according to an embodiment of the present invention, and FIG. 2 is a schematic configuration diagram showing a waveguide type demultiplexer according to another embodiment of the present invention. FIG. 3 is a schematic configuration diagram showing a waveguide type duplexer according to still another embodiment of the present invention, and FIG. 4 is a schematic configuration diagram showing a conventional waveguide type duplexer. In the figure, 1 is a main waveguide, 2 and 3 are coupling holes, 4 and 5 are irises, and 6 and 7 are band pass filters. The same reference numerals in the drawings indicate the same or corresponding parts.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭63−158901（ＪＰ，Ａ) 特開 昭59−19401（ＪＰ，Ａ) 米国特許4584588（ＵＳ，Ａ) ─────────────────────────────────────────────────── --- Continuation of the front page (56) References JP-A-63-158901 (JP, A) JP-A-59-19401 (JP, A) US Patent 4584588 (US, A)
Claims (1)
で構成される分波器において、 上記円形導波管のいずれか一方の端面中央部に結合孔を
設け、 その底面での結合孔を介し、管軸方向に導波管形フィル
タを結合させ、 かつ、前記結合孔の中心と円形導波管の軸を含む面内に
も一つの結合孔を設け、 その結合孔を介し、他の導波管形フィルタをそのＥ面を
介して結合させてなることを特徴とする導波管形分波
器。1. A demultiplexer composed of a circular waveguide and two types of waveguide filters, wherein a coupling hole is provided at the center of one of the end faces of the circular waveguide, and The waveguide type filter is coupled through the coupling hole in the direction of the tube axis, and one coupling hole is also provided in the plane including the center of the coupling hole and the axis of the circular waveguide. A waveguide type duplexer, characterized in that another waveguide type filter is coupled via the E surface of the waveguide type filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1305124A JP2548810B2 (en) | 1989-11-24 | 1989-11-24 | Waveguide demultiplexer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1305124A JP2548810B2 (en) | 1989-11-24 | 1989-11-24 | Waveguide demultiplexer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03165601A JPH03165601A (en) | 1991-07-17 |
| JP2548810B2 true JP2548810B2 (en) | 1996-10-30 |
Family
ID=17941388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1305124A Expired - Fee Related JP2548810B2 (en) | 1989-11-24 | 1989-11-24 | Waveguide demultiplexer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2548810B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2904478B1 (en) * | 2006-07-28 | 2010-04-23 | Cit Alcatel | ORTHOMODE TRANSDUCTION DEVICE COMPRISING OPTIMIZED IN THE MESH PLAN FOR AN ANTENNA |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4584588A (en) | 1982-11-12 | 1986-04-22 | Kabelmetal Electro Gmbh | Antenna with feed horn and polarization feed |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0650801B2 (en) * | 1986-12-23 | 1994-06-29 | 三菱電機株式会社 | Waveguide demultiplexer |
-
1989
- 1989-11-24 JP JP1305124A patent/JP2548810B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4584588A (en) | 1982-11-12 | 1986-04-22 | Kabelmetal Electro Gmbh | Antenna with feed horn and polarization feed |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03165601A (en) | 1991-07-17 |
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