JP2519747B2 - Dielectric polar filter - Google Patents
Dielectric polar filterInfo
- Publication number
- JP2519747B2 JP2519747B2 JP62228927A JP22892787A JP2519747B2 JP 2519747 B2 JP2519747 B2 JP 2519747B2 JP 62228927 A JP62228927 A JP 62228927A JP 22892787 A JP22892787 A JP 22892787A JP 2519747 B2 JP2519747 B2 JP 2519747B2
- Authority
- JP
- Japan
- Prior art keywords
- dielectric
- shunt
- resonator
- coupling
- lid
- 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 - Lifetime
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Description
【発明の詳細な説明】 〔概要〕 複数の誘電体共振器を用いたマイクロ波の帯域通過フ
ィルタに分路を設けて、中心周波数f0の両側の減衰域の
一定周波数で減衰極を生ずるようにした誘電体有極フィ
ルタに関し、その入力信号の中心周波数f0が一定周波数
帯域内で任意に定められた時に、減衰極を生ずる周波数
が該中心周波数f0から常に一定周波数だけ離れた周波数
となる様にすることを目的として、誘電体共振器群を収
容する筐体のフタを二段重ね構造とし、其の二つのフタ
により矩形導波管を形成して入力信号の分路とし、該二
つのフタの一方32に、該分路と初段共振器及び終段共振
器に個別に結合する結合孔と該結合孔に個別に挿入可変
されて結合を調整する結合調整ネジとを設け、又該二つ
のフタの他方31には、前記一方のフタ32とともに構成す
る前記矩形導波管内に挿入可変される少なくとも２本の
電気長調整ネジを設けて、該電気長調整ネジを用いて該
分路の電気長を変化し、該結合調整ネジを用いて該誘電
体共振器群の初段共振器及び終段共振器と該分路との結
合を調整する様に構成する。DETAILED DESCRIPTION [Outline] A shunt is provided in a microwave bandpass filter using a plurality of dielectric resonators so that an attenuation pole is generated at a constant frequency in an attenuation range on both sides of a center frequency f 0. With respect to the dielectric polar filter described above, when the center frequency f 0 of the input signal is arbitrarily determined within a constant frequency band, the frequency causing the attenuation pole is a frequency that is always separated from the center frequency f 0 by a constant frequency. In order to achieve the above, the lid of the housing for accommodating the dielectric resonator group has a two-tiered structure, and a rectangular waveguide is formed by the two lids to serve as a shunt of the input signal. One of the two lids 32 is provided with a coupling hole that is individually coupled to the shunt, the first-stage resonator and the last-stage resonator, and a coupling adjustment screw that is individually inserted into the coupling hole to adjust coupling. The other lid 31 of the two lids and the one lid 32 and At least two electric length adjusting screws that are insertably variable are provided in the rectangular waveguide configured as described above, the electric length of the shunt is changed by using the electric length adjusting screws, and the coupling adjusting screws are used. The coupling between the shunt and the first-stage resonator and the last-stage resonator of the dielectric resonator group is adjusted.
本発明は、複数の誘電体共振器を用いたマイクロ波の
帯域通過フィルタに入力信号の分路を設け、入力信号の
中心周波数f0の両側の減衰域の一定周波数で減衰量が急
に大きくなる減衰極を生ずる誘電体有極フィルタに関す
るものである。According to the present invention, a shunt of an input signal is provided in a microwave band pass filter using a plurality of dielectric resonators, and the amount of attenuation increases sharply at a constant frequency in the attenuation region on both sides of the center frequency f 0 of the input signal. The present invention relates to a dielectric polar filter that produces the following attenuation pole.
一定の無線周波数帯域で運用されるマイクロ波多重無
線装置等に用いられる誘電体有極フィルタは、製作誤差
や経年誤差が容易に補正されることが必要であることは
勿論であり、其の上に、其の中心周波数f0が一定無線周
波数帯域内の任意の無線周波数に定められた時でも、前
記の減衰極を生ずる周波数が、其の中心周波数f0から常
に一定周波数だけ離隔した周波数となるような調整機構
を備えることが望まれている。It is needless to say that the dielectric polar filter used in the microwave multiplex radio equipment operated in a fixed radio frequency band needs to be easily corrected for manufacturing error and aging error. In addition, even when the center frequency f 0 is set to any radio frequency in the constant radio frequency band, the frequency that causes the attenuation pole is a frequency that is always separated from the center frequency f 0 by a constant frequency. It is desired to provide such an adjusting mechanism.
従来の誘電体有極フィルタの構造の一例を第３図に示
し、第４図Ａに其の結合部の一部を拡大した図を示す。
第３図のＡは従来例の全体斜視図であって、誘電体共振
器の３段から構成された誘電体有極フィルタの場合を示
し、入力信号Ａを帯域通過する初段の第１誘電体共振器
１と、中段の第２誘電体共振器２と、終段の第３誘電体
共振器３と、前記入力信号Ａを初段の誘電体共振器１で
分流し終段の誘電体共振器３で合流させる為の、第１と
第３の誘電体共振器1,3と夫々に結合する分路300の同軸
線路４とで構成されている。FIG. 3 shows an example of the structure of a conventional dielectric polar filter, and FIG. 4A shows an enlarged view of a part of the coupling part.
FIG. 3A is an overall perspective view of a conventional example, showing a case of a dielectric polar filter composed of three stages of dielectric resonators, and showing the first stage first dielectric that band-passes the input signal A. The resonator 1, the second dielectric resonator 2 in the middle stage, the third dielectric resonator 3 in the final stage, and the input signal A is shunted by the dielectric resonator 1 in the first stage, and the dielectric resonator in the final stage. It is composed of the first and third dielectric resonators 1 and 3 and the coaxial line 4 of the shunt 300 which are coupled to each other so as to be merged at 3.
入力信号Ａの殆んど大部分は、第1,第2,第３の誘電体
共振器1,2,3を通過して出力信号Ｂとなり、出力接続用
の矩形導波管へ出力されるが、第４図のＡの一部拡大図
に示す如く、第１の誘電体共振器１のところで、入力信
号Ａの一部が分路300である同軸線路４の一端に結合
し、同様に同軸線路４の他端が第３誘電体共振器３に再
結合されるため、第３誘電体共振器３のところでは、入
力信号Ａの或る周波数でおいて、誘電体共振器1,2,3を
通って来た信号と、分路300の同軸線路４を通って来た
信号の両信号の振幅が同じで互の位相が逆となって、合
成される。その結果、其の周波数において、該フィルタ
の伝送信号の減衰域の中に減衰量が急に大きくなる所謂
減衰極を生ずる。誘電体有極フィルタの通過減衰量の周
波数特性の一例を第４図のＢに示す。第４図のＢでは、
中心周波数f0＝11000MHzの両側に約50MHzだけ離れた周
波数で減衰極を生ずることを示している。Almost most of the input signal A passes through the first, second and third dielectric resonators 1, 2 and 3 to become the output signal B, which is output to the rectangular waveguide for output connection. However, as shown in a partially enlarged view of A of FIG. 4, at the first dielectric resonator 1, a part of the input signal A is coupled to one end of the coaxial line 4 which is the shunt 300, and similarly. Since the other end of the coaxial line 4 is recoupled to the third dielectric resonator 3, at the third dielectric resonator 3, at a certain frequency of the input signal A, the dielectric resonators 1, 2 , 3 and the signal coming through the coaxial line 4 of the shunt 300 have the same amplitude but opposite phases, and are combined. As a result, at that frequency, a so-called attenuation pole in which the amount of attenuation suddenly increases is generated in the attenuation region of the transmission signal of the filter. FIG. 4B shows an example of the frequency characteristic of the pass attenuation amount of the dielectric polar filter. In FIG. 4B,
It is shown that the attenuation poles are generated on both sides of the center frequency f 0 = 11000 MHz at a frequency separated by about 50 MHz.
従来の誘電体有極フィルタは、上述の如く、中心周波
数f0の両側の減衰域の一定周波数だけ離れた周波数で減
衰極を生ずるが、同軸線路４の長さが固定された構造で
あるために、同軸線路４と誘電体共振器1,3との結合部
の製作時の誤差や経年誤差により、其の長さが規定値よ
り少しでも変化すると、減衰極を生ずる周波数が予め定
めた規定周波数から外れてしまうという問題があった。As described above, the conventional dielectric poled filter has an attenuation pole at a frequency separated by a constant frequency in the attenuation region on both sides of the center frequency f 0 , but the coaxial line 4 has a fixed length. In addition, when the length of the coupling portion between the coaxial line 4 and the dielectric resonators 1 and 3 is changed by a manufacturing error or an aging error, the frequency at which the attenuation pole is generated is defined by a predetermined value. There was a problem of getting out of frequency.
また、一定無線周波数帯域で運用されるマイクロ波多
重無線装置等に用いられる誘電体有極フィルタは、第４
図のＢに示す様に、中心周波数f0が11000MHz＝11GHzの
みということはなく、例えば10.7GHzから11.7GHzの間の
任意の周波数に、中心周波数f0を合わせられなければな
らない。その場合、分路300である同軸線路４の長さを
変える調整機構が付いていない為に、長さの異なる数種
類の同軸線路４を用意しなければならないという問題が
あった。In addition, the dielectric polar filter used in a microwave multiplex wireless device operated in a fixed radio frequency band is
As shown in B of the figure, the center frequency f 0 is not limited to 11000 MHz = 11 GHz, and the center frequency f 0 has to be adjusted to an arbitrary frequency between 10.7 GHz and 11.7 GHz, for example. In that case, since there is no adjustment mechanism for changing the length of the coaxial line 4 that is the shunt 300, there is a problem that several types of coaxial lines 4 having different lengths must be prepared.
また、従来の誘電体有極フィルタには、第３図のＢに
示す様に、第１誘電体共振器１と第３誘電体共振器３に
夫々結合する分路300として、曲り導波管40を使用し、
その曲り導波管40に調整ネジ41,42を設けることによ
り、該分路の電気長を変える構造のものがあるが、曲り
導波管40に調整ネジ41,42を設ける加工等で誘電体有極
フィルタの製造コストが高くなるという問題があった。Further, in the conventional dielectric polarized filter, as shown in FIG. 3B, a curved waveguide is used as a shunt 300 that is coupled to the first dielectric resonator 1 and the third dielectric resonator 3, respectively. Use 40,
There is a structure in which the bending waveguide 40 is provided with the adjusting screws 41 and 42 to change the electrical length of the shunt. There is a problem that the manufacturing cost of the polarized filter becomes high.
上記の問題点は、本発明の第１実施例の構造を示す第
１図を参照して、入力信号Ａを分流する分路300とし
て、誘電体共振器1,2,3を収容する筐体20のフタ30を、
二つのフタ31,32の２段重ね構造とし、下のフタ32に
は、初段の誘電体共振器１と終段の誘電体共振器３の夫
々に結合する結合孔321,322を設け、該結合孔321,322に
より結合した入力信号Ａの一部を分流通過させる矩形導
波管の３面を形成し、上のフタ31により該矩形導波管の
残り１面を形成する。つまり、フタ31とフタ32とで矩形
導波管を構成して、分路300とする。又、フタ32の結合
孔321,322には、夫々、結合調整用ネジ321A,322Aを設
け、フタ31には、分路300の電気長を調整する電気長調
整ネジ311,312を設けるようにした本発明の構造により
解決される。本発明の誘電体有極フィルタの構造を示す
第１図において、 １は、入力信号Ａの一定周波数帯域を通過させる帯域
通過フィルタとしての誘電体共振器群10の初段共振器、 ２は、初段共振器１の出力信号の一定周波数帯域を通
過させる誘電体共振器群10の中間段共振器、 ３は、中間段共振器２の出力信号の一定周波数帯域を
通過させる誘電体共振器群10の終段共振器、 20は、初段共振器1,中間段共振器2,終段共振器３から
成る誘電体共振器群10を収容する筐体、 30は、筐体20のフタであり、二つのフタ31とフタ32の
重ね構造から成り、初段共振器１と終段共振器３とに結
合して、誘電体共振器群10を通過する入力信号Ａを分流
する分路300を形成する矩形導波管の構造体、 311,312は、フタ31に設けられた分路300の電気長を調
整する電気長調整ネジ、 321,322は、フタ32に設けられた結合孔で、それぞれ
初段共振器１と終段共振器３とに結合するの、 321A,322Aは、結合孔321,322にそれぞれ挿入されて結
合を変化させる結合調整ネジである。The above-mentioned problem is caused by referring to FIG. 1 showing the structure of the first embodiment of the present invention, and as a shunt 300 for shunting the input signal A, a housing for housing the dielectric resonators 1, 2, 3 20 lids 30,
The two lids 31 and 32 have a two-layered structure, and the lower lid 32 is provided with coupling holes 321 and 322 which are coupled to the first-stage dielectric resonator 1 and the final-stage dielectric resonator 3, respectively. The three faces of the rectangular waveguide for passing a part of the coupled input signal A by 321 and 322 are shunted, and the upper lid 31 forms the remaining one face of the rectangular waveguide. That is, the lid 31 and the lid 32 form a rectangular waveguide to form the shunt 300. Further, the coupling holes 321 and 322 of the lid 32 are respectively provided with coupling adjusting screws 321A and 322A, and the lid 31 is provided with electric length adjusting screws 311 and 312 for adjusting the electric length of the shunt 300. Solved by structure. In FIG. 1 showing the structure of a dielectric polarized filter of the present invention, 1 is a first-stage resonator of a dielectric resonator group 10 as a band-pass filter that passes a constant frequency band of an input signal A, and 2 is a first-stage resonator. An intermediate stage resonator of the dielectric resonator group 10 that passes a constant frequency band of the output signal of the resonator 1, and a reference numeral 3 of the dielectric resonator group 10 that passes a constant frequency band of the output signal of the intermediate resonator 2. A final-stage resonator, 20 is a housing that houses the dielectric resonator group 10 including the first-stage resonator 1, the intermediate-stage resonator 2, and the final-stage resonator 3, 30 is a lid of the housing 20, and A rectangular shape which is formed by stacking two lids 31 and 32 and is coupled to the first-stage resonator 1 and the last-stage resonator 3 to form a shunt 300 for shunting the input signal A passing through the dielectric resonator group 10. Waveguide structures 311, 312 are electrical length adjusting screws 321, 32 for adjusting the electrical length of the shunt 300 provided in the lid 31. Reference numeral 2 is a coupling hole provided in the lid 32, which is coupled to the first-stage resonator 1 and the final-stage resonator 3, respectively. 321A and 322A are coupling adjustment screws which are respectively inserted into the coupling holes 321 and 322 to change the coupling. Is.
本発明の誘電体有極フィルタは、誘電体共振器群10の
初段共振器１に入力する入力信号Ａが、フタ32に設けさ
れた入力側の結合孔321により、フタ31とフタ32とで形
成する矩形導波管の分路300に結合し、フタ32の出力側
の結合孔322により終段共振器３に再結合して、誘電体
共振器群10を通過して来た信号と合成される。そしてフ
タ31とフタ32とで形成する矩形導波管の分路300の電気
長で定まる一定周波数において、減衰量の極を生じて誘
電体有極フィルタとして動作する。更に、矩形導波管の
１面を形成するフタ31には、分路300の電気長を調整す
る電気長調整ネジ311,312が設けられ、フタ32の結合孔3
21,322には、挿入されて結合を変化させる結合調整ネジ
321A,322Aが設けられているので、フタ31とフタ32とで
形成する矩形導波管の分路300は、その電気長が調整可
能となり、誘電体共振器群10の初段共振器１及び終段共
振器３との結合が調整可能となる。従って、分路300と
初段共振器１及び終段共振器３との結合部の製作時の長
さの誤差や経年誤差は、電気長調整ネジ311,312と結合
調整ネジ321A,322Aの調整によって補正される。また、
一定周波数帯域で運用されるマイクロ波多重無線装置等
に用いられる誘電体有極フィルタの場合も、電気長調整
ネジ311,312と結合調整ネジ321A,322Aの調整によって、
中心周波数f0を所定帯域内の任意の周波数に合わせるこ
とが出来るので、従来の問題は解決される。In the dielectric polarized filter of the present invention, the input signal A input to the first-stage resonator 1 of the dielectric resonator group 10 is separated between the lid 31 and the lid 32 by the input side coupling hole 321 provided in the lid 32. The signal is coupled to the shunt 300 of the rectangular waveguide to be formed, recoupled to the final stage resonator 3 through the coupling hole 322 on the output side of the lid 32, and combined with the signal that has passed through the dielectric resonator group 10. To be done. Then, at a constant frequency determined by the electrical length of the shunt 300 of the rectangular waveguide formed by the lid 31 and the lid 32, a pole having an attenuation amount is generated to operate as a dielectric polarized filter. Further, the lid 31 forming one surface of the rectangular waveguide is provided with electrical length adjusting screws 311 and 312 for adjusting the electrical length of the shunt 300, and the coupling hole 3 of the lid 32 is provided.
21,322 has a coupling adjustment screw that is inserted to change the coupling
Since 321A and 322A are provided, the electrical length of the rectangular waveguide shunt 300 formed by the lid 31 and the lid 32 can be adjusted, and the first-stage resonator 1 and the final resonator 1 of the dielectric resonator group 10 can be adjusted. The coupling with the stage resonator 3 can be adjusted. Therefore, the length error and the aging error at the time of manufacturing the coupling portion between the shunt 300 and the first-stage resonator 1 and the final-stage resonator 3 are corrected by the adjustment of the electrical length adjusting screws 311,312 and the coupling adjusting screws 321A, 322A. It Also,
Even in the case of a dielectric polarized filter used in a microwave multiplex radio device operated in a constant frequency band, by adjusting the electrical length adjusting screws 311, 312 and the coupling adjusting screws 321A, 322A,
Since the center frequency f 0 can be adjusted to an arbitrary frequency within a predetermined band, the conventional problem is solved.
第１図は本発明の第１の実施例の誘電体有極フィルタ
の構造を示す図であり、同図のＡは全体の斜視図、同図
のＢは矩形導波管の分路300を構成する二重フタ30の上
のフタ31と下のフタ32の断面図、同図のＣは誘電体共振
器群10の筐体20の断面図である。FIG. 1 is a diagram showing the structure of a dielectric polar filter according to a first embodiment of the present invention. A in the figure is a perspective view of the whole, and B in the figure is a shunt 300 of a rectangular waveguide. A cross-sectional view of the upper lid 31 and the lower lid 32 of the double lid 30 constituting the same, and C in the same figure is a cross-sectional view of the housing 20 of the dielectric resonator group 10.
第１図の第１の実施例では、分路300を構成する矩形
導波管の幅および高さは標準導波管のものと同じ寸法に
選定してあり、フタ31は単なる平板状の金属板である。
このフタ31の金属板をフタ32の上面に重ね合わせること
により、分路300の矩形導波管が形成される。フタ32に
は、結合孔321,323が設けられており、その孔の大きさ
は、減衰極を生じる周波数等により決定される。また、
フタ31には金属ネジ311,312が少なくとも２本以上設け
られており、この金属ネジ311,312により、分路300の矩
形導波管の電気長を調整できる構造になっている。In the first embodiment of FIG. 1, the width and height of the rectangular waveguide forming the shunt 300 are selected to be the same as those of the standard waveguide, and the lid 31 is simply a flat metal plate. It is a plate.
By overlapping the metal plate of the lid 31 on the upper surface of the lid 32, a rectangular waveguide of the shunt 300 is formed. Coupling holes 321 and 323 are provided in the lid 32, and the size of the holes is determined by the frequency or the like that produces the attenuation pole. Also,
At least two metal screws 311 and 312 are provided on the lid 31, and the electrical length of the rectangular waveguide of the shunt 300 can be adjusted by the metal screws 311 and 312.
第２図は、本発明の第２の実施例の誘電体有極フィル
タの構造を示す図であって、本例では、分路300となる
矩形導波管の幅は標準導波管の寸法と同じであるが、其
の高さは、標準導波管の寸法より低く選定されている。
即ちフタ32の高さを第１図の第１実施例に比して低くし
ているため、全体として小形の誘電体有極フィルタとな
っている。FIG. 2 is a diagram showing the structure of the dielectric polar filter of the second embodiment of the present invention. In this example, the width of the rectangular waveguide forming the shunt 300 is the size of the standard waveguide. But its height is chosen to be lower than the dimensions of the standard waveguide.
That is, since the height of the lid 32 is made lower than that of the first embodiment shown in FIG. 1, the overall size of the dielectric polar filter is small.
第１実施例、第２実施例の何れの場合も、分路300と
なる矩形導波管の１面を形成するフタ31には、分路300
の電気長を調整する電気長調整ネジ311,312が設けら
れ、フタ32の結合孔321,322には、挿入可変の結合調整
ネジ321A,322Aが設けられているので、矩形導波管の分
路300は、その電気長が調整可能となり、誘電共振器群1
0の初段共振器１及び終段共振器３との結合が調整可能
となる。In either of the first and second embodiments, the shunt 300 is provided in the lid 31 forming one surface of the rectangular waveguide which becomes the shunt 300.
Since the electric length adjusting screws 311 and 312 for adjusting the electric length of the are provided, and the coupling holes 321 and 322 of the lid 32 are provided with the insertion adjusting coupling adjusting screws 321A and 322A, the shunt 300 of the rectangular waveguide is The electric length can be adjusted, and the dielectric resonator group 1
The coupling between the first-stage resonator 1 and the final-stage resonator 3 of 0 can be adjusted.
従って、分路300と初段共振器１及び終段共振器３と
の結合部の製作時の長さの誤差や経年誤差は、電気長調
整ネジ311,312と結合調整ネジ321A,322Aの調整によって
補正され、また、一定周波数帯域で運用されるマイクロ
波多重無線装置等に用いられる誘電体有極フィルタの場
合も、電気長調整ネジ311,312と結合調整ネジ321A,322A
の調整によって、中心周波数f0を所定帯域内の任意の周
波数に合わせることが出来るので、問題は無い。Therefore, the length error and the aging error at the time of manufacturing the coupling portion between the shunt 300 and the first-stage resonator 1 and the last-stage resonator 3 are corrected by the adjustment of the electrical length adjusting screws 311 and 312 and the coupling adjusting screws 321A and 322A. Also, in the case of a dielectric polar filter used in a microwave multiplex radio device operated in a constant frequency band, the electrical length adjusting screws 311, 312 and the coupling adjusting screws 321A, 322A are also used.
Since the center frequency f 0 can be adjusted to an arbitrary frequency within the predetermined band by adjusting, there is no problem.
以上説明した如く、本発明によれば、誘電体有極フィ
ルタの中の入力信号の分路の製造誤差や経年誤差は、容
易に補正され、また、其の減衰極は、一定周波数帯域内
の任意の周波数で得られる調整構造となっているので、
誘電体有極フィルタのコストを低減する効果が得られ
る。As described above, according to the present invention, the manufacturing error and aging error of the shunt of the input signal in the dielectric polarized filter are easily corrected, and the attenuation pole thereof is within the constant frequency band. Since it has an adjustment structure that can be obtained at any frequency,
The effect of reducing the cost of the dielectric polar filter is obtained.
第１図は本発明の第１の実施例の誘電体有極フィルタの
構成を示す構造図、 第２図は本発明の第２の実施例の誘電体有極フィルタの
構成を示す構造図、 第３図は従来例の誘電体有極フィルタの構造図、 第４図は従来の誘電体有極フィルタの動作を説明するた
めの説明図である。 図中、 1,2,3は誘電体共振器、 10は誘電体共振器群、 20は筐体、 30,31,32はフタ、 311,312は電気長調整ネジ、 321,322は結合孔、 321A,322Aは結合調整ネジ、 300は分路である。FIG. 1 is a structural diagram showing the constitution of a dielectric polar filter of the first embodiment of the present invention, and FIG. 2 is a structural diagram showing the constitution of a dielectric polar filter of the second embodiment of the present invention, FIG. 3 is a structural diagram of a conventional dielectric polar filter, and FIG. 4 is an explanatory diagram for explaining the operation of the conventional dielectric polar filter. In the figure, 1,2,3 are dielectric resonators, 10 is a dielectric resonator group, 20 is a housing, 30,31,32 are lids, 311,312 are electrical length adjusting screws, 321,322 are coupling holes, 321A, 322A Is a coupling adjustment screw and 300 is a shunt.
Claims (1)
体共振器群（10）と、該入力信号Ａを該誘電体共振器群
（10）の初段共振器（１）で分流して終段共振器（３）
で該誘電体共振器群（10）の通過信号に合流する分路
（300）とから成り、該入力信号Ａの中心周波数f0の両
側の一定周波数で減衰極を生ずる誘電体有極フィルタに
おいて、 該分路（300）を、該誘電体共振器群（10）を収容する
筐体（20）の二つのフタ（31,32）の重ね構造により形
成される矩形導波管とし、 該二つのフタの一方（32）に、該分路（300）と該初段
共振器（１）及び終段共振器（３）に個別に結合する結
合孔（321,322）と該結合孔（321,322）に個別に挿入可
変されて結合を調整する結合調整ネジ（321A,322A）を
設け、 該二つのフタの他方（31）に、前記一方のフタ（32）と
ともに構成する前記矩形導波管内に挿入可変される少な
くとも２本の電気長調整ネジ（311,312）を設け、 該電気長調整ネジ（311,312）を用いて該分路（300）の
電気長を変化し、該結合調整ネジ（321A,322A）を用い
て該誘電体共振器群（10）の初段共振器（１）及び終段
共振器（３）と該分路（300）との結合を調整すること
を特徴とした誘電体有極フィルタ。1. A cascaded dielectric resonator group (10) for band-passing an input signal A, and the input signal A being shunted by a first-stage resonator (1) of the dielectric resonator group (10). Final resonator (3)
And a shunt (300) that joins the passing signal of the dielectric resonator group (10), and produces a damping pole at a constant frequency on both sides of the center frequency f 0 of the input signal A. The shunt (300) is a rectangular waveguide formed by a stacked structure of two lids (31, 32) of a housing (20) that houses the dielectric resonator group (10), In one of the two lids (32), a coupling hole (321,322) and a coupling hole (321,322) for individually coupling the shunt (300), the first-stage resonator (1) and the final-stage resonator (3) are individually provided. A coupling adjusting screw (321A, 322A) for adjusting the coupling is provided in the rectangular waveguide which is configured with the other lid (31) of the two lids (31). At least two electric length adjusting screws (311,312) are provided, and the electric length of the shunt (300) is changed by using the electric length adjusting screws (311,312). And adjust the coupling between the shunt (300) and the first-stage resonator (1) and the last-stage resonator (1) of the dielectric resonator group (10) by using the coupling adjusting screw (321A, 322A). A dielectric polar filter characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62228927A JP2519747B2 (en) | 1987-09-11 | 1987-09-11 | Dielectric polar filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62228927A JP2519747B2 (en) | 1987-09-11 | 1987-09-11 | Dielectric polar filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6471301A JPS6471301A (en) | 1989-03-16 |
| JP2519747B2 true JP2519747B2 (en) | 1996-07-31 |
Family
ID=16884038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62228927A Expired - Lifetime JP2519747B2 (en) | 1987-09-11 | 1987-09-11 | Dielectric polar filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2519747B2 (en) |
-
1987
- 1987-09-11 JP JP62228927A patent/JP2519747B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6471301A (en) | 1989-03-16 |
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