JPH0878914A - Movable stub tuner for microwave - Google Patents
Movable stub tuner for microwaveInfo
- Publication number
- JPH0878914A JPH0878914A JP23067594A JP23067594A JPH0878914A JP H0878914 A JPH0878914 A JP H0878914A JP 23067594 A JP23067594 A JP 23067594A JP 23067594 A JP23067594 A JP 23067594A JP H0878914 A JPH0878914 A JP H0878914A
- Authority
- JP
- Japan
- Prior art keywords
- stub
- microwave
- choke member
- waveguide
- effective portion
- 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.)
- Granted
Links
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
- Non-Reversible Transmitting Devices (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、マイクロ波回路に用い
られるインピーダンス整合を行う可動スタブチューナに
係り、特にマイクロ波の漏洩を防止するスタブチューナ
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable stub tuner for impedance matching used in a microwave circuit, and more particularly to a stub tuner for preventing microwave leakage.
【０００２】[0002]
【従来の技術】マイクロ波用チョーク構造を有する従来
の可動スタブチューナの要部概略縦断面図を図５に示
す。図示するように、可動スタブチューナがマイクロ波
を通過させるための方形導波管１に取付けられており、
この導波管１の電界面（電界が生じる面）に設けた貫通
孔１ａに、先端部が丸みを帯びた導体棒構造のスタブ２
を挿入引出し自在となるように配設され、通常３本が例
えばλｇ／４（λｇ：管内波長）の間隔で、方形導波管
１の管軸方向に沿って設けられている。2. Description of the Related Art FIG. 5 shows a schematic vertical sectional view of a main part of a conventional movable stub tuner having a microwave choke structure. As shown, a movable stub tuner is attached to the rectangular waveguide 1 for passing microwaves,
A stub 2 having a conductor rod structure with a rounded tip is provided in a through hole 1a provided on the electric field surface (surface where an electric field is generated) of the waveguide 1.
Are arranged so as to be freely inserted and pulled out, and usually three are provided along the tube axis direction of the rectangular waveguide 1 at intervals of, for example, λg / 4 (λg: wavelength in tube).
【０００３】スタブ２の外周には、貫通孔１ａとスタブ
２とを電気的接触させることが期待できないので、スタ
ブとして有効に機能させるため、またマイクロ波が外部
へ漏洩することを防止するためのマイクロ波用チョーク
構造を形成するチョーク部材３を配設させており、この
チョーク部材３は断面が円形状を呈した導体の外筒チョ
ーク部材３ａ及び内筒チョーク部材３ｂからなる。外筒
チョーク部材３ａは、その下端のフランジ開口部と貫通
孔１ａとが合致するように、導波管１の壁面と垂直に取
付けられて、スタブ２の外周の長手方向に続いた空間Ｓ
１，Ｓ２が形成される。Since it is not expected that the through hole 1a and the stub 2 are electrically contacted with each other on the outer periphery of the stub 2, the stub 2 is effectively functioned and the microwave is prevented from leaking to the outside. A choke member 3 that forms a microwave choke structure is provided, and the choke member 3 is composed of an outer cylinder choke member 3a and an inner cylinder choke member 3b which are conductors having a circular cross section. The outer cylinder choke member 3a is attached perpendicularly to the wall surface of the waveguide 1 so that the flange opening at the lower end thereof and the through hole 1a are aligned with each other, and a space S continuing in the longitudinal direction of the outer circumference of the stub 2.
1, S2 are formed.
【０００４】外筒チョーク部材３ａの上端には、この外
筒チョーク部材３ａの内側に適宜の間隙及び長さλ／４
（λ：自由空間波長）による空間Ｓ１を形成する内筒チ
ョーク部材３ｂが取付けられ、外筒チョーク部材３ａ及
び内筒チョーク部材３ｂがスタブ２と同心的に配設され
ており、スタブ２が外筒チョーク部材３ａ及び内筒チョ
ーク部材３ｂの内側を挿通することによって、外筒チョ
ーク部材３ａとスタブ２との間に、適宜の間隙及び長さ
λ／４による空間Ｓ２が上記空間Ｓ１と同様に形成され
るので、Ａ点は短絡終端され、それからλ／２離れたＣ
点も電気的短絡の状態になる。また、Ｂ点が開放（入力
インピーダンスが無限大）の状態になるために、スタブ
２と内筒チョーク部材３ｂとに間隙があっても、マイク
ロ波のＢ点から外部への漏洩を防止することができる。At the upper end of the outer cylinder choke member 3a, a proper gap and a length λ / 4 are provided inside the outer cylinder choke member 3a.
An inner cylinder choke member 3b that forms a space S1 with (λ: free space wavelength) is attached, and the outer cylinder choke member 3a and the inner cylinder choke member 3b are arranged concentrically with the stub 2, and the stub 2 is outside. By inserting the inner choke member 3a and the inner choke member 3b inside, a space S2 having an appropriate gap and length λ / 4 is formed between the outer choke member 3a and the stub 2 in the same manner as the space S1. As it is formed, point A is short-circuit terminated and C is λ / 2 away from it.
The points are also in an electrically short-circuited state. Further, since the point B is opened (the input impedance is infinite), even if there is a gap between the stub 2 and the inner cylinder choke member 3b, the microwave is prevented from leaking from the point B to the outside. You can
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上記の
マイクロ波用チョーク構造を形成するチョーク部材３で
は、スタブ２及びチョーク部材３から同軸線路が形成さ
れるので、スタブ２とチョーク部材３との間隙をＴＥＭ
モードで伝搬するマイクロ波は、Ｂ点でＡ点側へ分波
（Ｆ1 ）して伝搬され、またＤ点側へ分波（Ｆ2 ）して
伝搬される。Ａ点側へ伝搬したマイクロ波は、Ａ点で短
絡されるために、Ａ点からＢ点へ全反射するが、この反
射波はＢ点でＤ点側へ分波（Ｒ1 ）して伝搬され、また
Ｃ点側へ分波（Ｒ2 ）して伝搬される。したがって、上
記分波（Ｆ2 ）と分波（Ｒ1 ）とが合成されたマイクロ
波がＤ点から外部へ漏洩するという問題がある。However, in the choke member 3 forming the above-mentioned microwave choke structure, since the coaxial line is formed from the stub 2 and the choke member 3, the gap between the stub 2 and the choke member 3 is formed. TEM
The microwave propagating in the mode is split and propagated to the point A side (F1) at the point B and is split and propagated to the point D side (F2). The microwave propagating to the A point side is totally reflected from the A point to the B point because it is short-circuited at the A point, but this reflected wave is split and propagated to the D point side (R1) at the B point. , And is split and propagated to the point C side (R2). Therefore, there is a problem that the microwave composed of the split (F2) and the split (R1) leaks from the point D to the outside.
【０００６】[0006]
【課題を解決するための手段】本発明の請求項１におい
ては、可変インピーダンス素子としてのスタブと、スタ
ブの外周に配設されたマイクロ波用チョーク構造を形成
するチョーク部材とを具備し、方形導波管に取付けられ
たマイクロ波用可動スタブチューナを対象とし、スタブ
は可変インピーダンス素子としての有効部分と有効部分
以外である非有効部分とが長手方向に構成されると共
に、有効部分の少なくとも表面が導体で形成され、非有
効部分が誘電体で形成され、有効部分と非有効部分との
境界は、スタブの可動時に導波管の内壁から管外側へ使
用するマイクロ波の波長の１／４からチョーク部材のス
タブ挿入開口面までに設定され、チョーク部材の内径の
半分を、マイクロ波の波長のｋ／２π（ｋ：ＴＥ11モー
ドの場合の定数）以下にした構成としている。According to a first aspect of the present invention, a stub as a variable impedance element and a choke member forming a microwave choke structure arranged on the outer periphery of the stub are provided, and the square shape is provided. Targeting a microwave movable stub tuner attached to a waveguide, the stub is composed of an effective part as a variable impedance element and an ineffective part other than the effective part in the longitudinal direction, and at least the surface of the effective part. Is formed of a conductor, the ineffective portion is formed of a dielectric, and the boundary between the effective portion and the ineffective portion is 1/4 of the wavelength of the microwave used from the inner wall of the waveguide to the outer side of the waveguide when the stub moves. set up the stub insertion opening of the choke member from the half of the internal diameter of the choke member, a wavelength of the microwave k / 2π (k: constant in the case of the TE 11 mode) than It has a configuration that was.
【０００７】また、請求項２においては、有効部分の全
体を導体からなる構成としている。In the second aspect, the entire effective portion is made of a conductor.
【０００８】さらに、請求項３においては、有効部分を
中空の導体からなる構成としている。Further, in the third aspect, the effective portion is made of a hollow conductor.
【０００９】また、請求項４においては、スタブ全体を
誘電体からなる構成とし、かつ有効部分に金属メッキを
施した構成としている。Further, in the present invention, the entire stub is made of a dielectric material, and the effective portion is metal-plated.
【００１０】[0010]
【作用】上記請求項１に記載した構成にすれば、チョー
ク部材を外導体とし、スタブを内導体とする同軸線路が
形成され、この同軸線路を伝搬するマイクロ波は、外導
体とするチョーク部材と内導体とするスタブとが対向し
ない部分のチョーク部材が円形導波管として形成される
ので、この円形導波管を伝搬する。したがって、円形導
波管の遮断波長λc は、導波管の半径をｒとすれば、λ
c ＝２πｒ／ｋから求められるので、チョーク部材の内
径（半径）を、使用するマイクロ波の波長のｋ／２π
（ｋ：ＴＥ11モードの場合の定数）以下にすれば、チョ
ーク部材から漏洩する全てのモードのマイクロ波が遮断
される。According to the structure described in claim 1, a coaxial line having a choke member as an outer conductor and a stub as an inner conductor is formed, and a microwave propagating through the coaxial line serves as an outer conductor. Since the choke member in a portion where the stub serving as the inner conductor does not face each other is formed as a circular waveguide, the choke member propagates through the circular waveguide. Therefore, the cutoff wavelength λ c of a circular waveguide is λ, where r is the radius of the waveguide.
Since it is calculated from c = 2πr / k, the inner diameter (radius) of the choke member is k / 2π of the wavelength of the microwave used.
(K: constant in the case of TE 11 mode) If set to the following, microwaves of all modes leaking from the choke member are blocked.
【００１１】また、請求項２に記載した構成にすれば、
特に構造が単純な２つの部材を組合わせているので、加
工工数が少なく、しかも製作が容易となる。According to the structure described in claim 2,
Particularly, since two members having a simple structure are combined, the number of processing steps is small and the manufacturing is easy.
【００１２】さらに、請求項３に記載した構成にすれ
ば、特に軽量化されるので、スタブの駆動源が小型化さ
れる。Further, according to the structure described in claim 3, since the weight is particularly reduced, the driving source of the stub can be downsized.
【００１３】また、請求項４に記載した構成にすれば、
特にスタブ全体が主に誘電体を一体成形した構造である
ので、加工工数が不要であり、しかも製作が著しく容易
となる。According to the structure described in claim 4,
In particular, since the entire stub has a structure in which the dielectric is mainly integrally formed, the number of processing steps is unnecessary, and the production is significantly facilitated.
【００１４】[0014]
【実施例】図１は本発明に係るスタブの一実施例を示す
縦断面図で、図２は一実施例に示したスタブを用いたマ
イクロ波用可動スタブチューナの要部概略縦断面図であ
り、チョーク部材３は図５と同じであるので説明を省略
する。1 is a vertical cross-sectional view showing an embodiment of a stub according to the present invention, and FIG. 2 is a schematic vertical cross-sectional view of a main part of a microwave movable stub tuner using the stub shown in the embodiment. Since the choke member 3 is the same as that shown in FIG. 5, its description is omitted.
【００１５】本実施例のスタブ２０は、導波管１側に位
置する可変インピーダンス素子としての有効部分２０Ａ
と、導波管１と逆方向側に位置する非有効部分２０Ｂと
からなり、有効部分２０Ａは全て銅、真鍮などの金属導
体で形成され、非有効部分２０Ｂは誘電体で形成されて
いる。The stub 20 of this embodiment is an effective portion 20A as a variable impedance element located on the waveguide 1 side.
And an ineffective portion 20B located on the opposite side to the waveguide 1, the effective portion 20A is entirely formed of a metal conductor such as copper or brass, and the ineffective portion 20B is formed of a dielectric material.
【００１６】有効部分２０Ａと非有効部分２０Ｂとの境
界は、スタブが可変インピーダンス素子として可動して
いる状態で、内筒チョーク部材３ｂの下端３ｃからスタ
ブ挿入開口面３ｄまでの位置としており、本実施例で
は、スタブの挿入長が最大状態で内筒チョーク部材３ｂ
の下端３ｃすなわち内壁１ｂから管外側へ略１／４λの
位置に設定し、また挿入長が零の状態でチョーク部材３
の短絡終端点Ａと略同じ位置に設定している。The boundary between the effective portion 20A and the ineffective portion 20B is a position from the lower end 3c of the inner cylinder choke member 3b to the stub insertion opening surface 3d in a state where the stub is movable as a variable impedance element. In the embodiment, the inner cylinder choke member 3b is used when the stub insertion length is maximum.
The lower end 3c of the choke member 3 from the inner wall 1b to the outside of the pipe at a position of about 1 / 4λ, and the insertion length is zero.
It is set at a position substantially the same as the short circuit termination point A.
【００１７】スタブ２０が最大に挿入された状態では、
スタブ２０の有効部分２０Ａを内導体とし、チョーク部
材３を構成する外筒チョーク部材３ａを外導体とする同
軸線路が形成されるので、マイクロ波は内壁１ｂから略
１／４λの長さのスタブ２０と外筒チョーク部材３ａと
の間隙をＴＥＭモ−ドで伝搬する。With the stub 20 fully inserted,
Since the coaxial line having the effective portion 20A of the stub 20 as the inner conductor and the outer cylinder choke member 3a forming the choke member 3 as the outer conductor is formed, the microwave is a stub having a length of about 1 / 4λ from the inner wall 1b. 20 is propagated through the gap between the outer cylinder choke member 3a in TEM mode.
【００１８】スタブ２０の挿入長が零の状態では、スタ
ブ２０が最大に挿入された状態と同様に、有効部分２０
Ａ及び外筒チョーク部材３ａから同軸線路が形成され、
さらに有効部分２０Ａと内筒チョーク部材３ｂから同軸
線路が形成されるので、マイクロ波は内壁１ｂから略１
／２λの長さのスタブ２０とチョーク部材３との間隙を
ＴＥＭモ−ドで伝搬する。When the insertion length of the stub 20 is zero, the effective portion 20 is the same as when the stub 20 is maximally inserted.
A coaxial line is formed from A and the outer cylinder choke member 3a,
Further, since the coaxial line is formed from the effective portion 20A and the inner cylinder choke member 3b, the microwave is transmitted from the inner wall 1b to approximately 1
Propagation is performed in the TEM mode through the gap between the stub 20 having a length of / 2λ and the choke member 3.
【００１９】チョーク部材３を外導体とし、スタブ２０
を内導体とする同軸線路が形成され、この同軸線路を伝
搬するマイクロ波は、非有効部分２０Ｂが誘電体で形成
され、マイクロ波を透過しやすいために、外導体とする
チョーク部材３と内導体とするスタブ２０の有効部分２
０Ａとが対向しない領域、すなわち非有効部分２０Ｂと
チョーク部材３とが対向する領域のチョーク部材３が円
形導波管として形成されるので、この領域内を伝搬する
ことになる。The choke member 3 is used as an outer conductor, and the stub 20 is used.
Is formed as an inner conductor, and the microwave propagating in the coaxial line has an ineffective portion 20B made of a dielectric material, and since microwaves are easily transmitted, the choke member 3 serving as an outer conductor and the inner portion Effective part 2 of the stub 20 used as a conductor
Since the choke member 3 in the region where 0A does not face each other, that is, the region where the ineffective portion 20B and the choke member 3 face each other, is formed as a circular waveguide, it propagates in this region.
【００２０】ところで、円形導波管の遮断波長λc は、
導波管の半径をｒとすれば、λc ＝２πｒ／ｋから求め
られることはよく知られている。ここで、ｋはモードに
よって異なる値で、例えばＴＥ01，ＴＥ11，ＴＭ01，Ｔ
Ｍ11モードの場合、それぞれｋ＝３．８３，１．８４，
２．４０，３．８３である。すなわち、ＴＥ01モードの
場合、チョーク部材３を構成する内筒チョーク部材３ｂ
の内径（半径）を、使用するマイクロ波の波長の３．８
３／２π＝１／１．６４以下、またＴＥ11モードの場
合、１．８４／２π＝１／３．４１以下、さらにＴＭ01
モードの場合、２．４０／２π＝１／２．６１以下、ま
たＴＭ11モードの場合、３．８３／２π＝１／１．６４
以下にすれば、それぞれのモードのマイクロ波が遮断さ
れる。By the way, the cutoff wavelength λc of the circular waveguide is
It is well known that λc = 2πr / k is obtained, where r is the radius of the waveguide. Here, k is a different value depending on the mode, for example, TE 01 , TE 11 , TM 01 , T
In the M 11 mode, k = 3.83, 1.84,
2.40 and 3.83. That is, in the TE 01 mode, the inner cylinder choke member 3b that constitutes the choke member 3
Inner diameter (radius) of the microwave wavelength used is 3.8
3 / 2π = 1 / 1.64 or less, and in the case of TE 11 mode, 1.84 / 2π = 1 / 3.41 or less, and TM 01
In the case of mode, 2.40 / 2π = 1 / 2.61 or less, and in the case of TM 11 mode, 3.83 / 2π = 1 / 1.64
In the following case, the microwave of each mode is blocked.
【００２１】例えば周波数２．４５GHz （自由空間波長
λ＝１２．２４cm）のマイクロ波を伝搬させる場合、Ｊ
ＩＳ規格番号ＷＲＪ−２と同様のａ＝１０．９cm×ｂ＝
５．５cmの導波管を用い、さらにこの導波管に本発明に
係るスタブを用いたスタブチューナを取付けており、内
筒チョーク部材３ｂの内径（半径）を、例えば１２．２
４cm×１／３．４１＝３．６cm以下にすると、ＴＥ11モ
ードは伝搬されなくなり始めるので、３．６cmよりもさ
らに小さくすることが望ましい。したがって、内筒チョ
ーク部材３ｂの内径（半径）を、ｋの一番小さい値を採
用すれば、ＴＥ11モードはもちろん、他の全てのモード
のマイクロ波が遮断される。For example, in the case of propagating a microwave having a frequency of 2.45 GHz (free space wavelength λ = 12.24 cm), J
Same as IS standard number WRJ-2 a = 10.9 cm x b =
A 5.5 cm waveguide is used, and a stub tuner using the stub according to the present invention is attached to the waveguide, and the inner cylinder choke member 3b has an inner diameter (radius) of, for example, 12.2.
If it is set to 4 cm × 1 / 3.41 = 3.6 cm or less, the TE 11 mode will start to stop propagating, so it is desirable to make it smaller than 3.6 cm. Therefore, if the inner diameter (radius) of the inner cylinder choke member 3b is set to the smallest value of k, not only the TE 11 mode but also the microwaves of all other modes are blocked.
【００２２】有効部分２０Ａと非有効部分２０Ｂとの境
界は、スタブ２０の挿入長さに拘らず常にチョーク部材
３のスタブ挿入開口面３ｃから導波管１側に設定されて
いるが、スタブ挿入開口面３ｃまでの長さは、マイクロ
波の減衰量及び内筒チョーク部材３ｂの内径（半径）を
考慮して、適宜に設定すればよい。The boundary between the effective portion 20A and the ineffective portion 20B is always set to the waveguide 1 side from the stub insertion opening surface 3c of the choke member 3 regardless of the insertion length of the stub 20, but the stub insertion is performed. The length up to the opening surface 3c may be set appropriately in consideration of the amount of microwave attenuation and the inner diameter (radius) of the inner cylinder choke member 3b.
【００２３】スタブ２０の構造は、上記実施例に限定さ
れることなく、図３に示すように、有効部分２０Ａに
銅、真鍮などの金属導体を中空に成形したものを用いて
もよく、また図４に示すように、全体を誘電体とし、有
効部分２０Ａの表面に銅などの導電性金属をメッキして
もよい。The structure of the stub 20 is not limited to the above-mentioned embodiment, and as shown in FIG. 3, a metal conductor such as copper or brass formed in a hollow shape in the effective portion 20A may be used. As shown in FIG. 4, the entire surface may be a dielectric, and the surface of the effective portion 20A may be plated with a conductive metal such as copper.
【００２４】[0024]
【発明の効果】以上のように、請求項１に記載した発明
によれば、従来のマイクロ波用チョーク構造を有するチ
ョーク部材を改良することなく、マイクロ波用可動スタ
ブチューナ外へのマイクロ波の漏洩を一段と少なくさせ
ることができるという利点がある。As described above, according to the first aspect of the present invention, the microwaves outside the movable stub tuner for microwaves can be transmitted without improving the conventional choke member having the microwave choke structure. There is an advantage that leakage can be further reduced.
【００２５】また、請求項２に記載した発明によれば、
単純な２つの部材を組合わせたスタブ構造であるので、
加工工数が少なく、しかも容易に製作することができ
る。According to the invention described in claim 2,
Since it is a stub structure that combines two simple members,
The number of processing steps is small, and it can be easily manufactured.
【００２６】さらに、請求項３に記載した発明によれ
ば、スタブが軽量化されるので、スタブの駆動源を小型
化することができる。Further, according to the invention described in claim 3, since the stub is lightened, the driving source of the stub can be downsized.
【００２７】また、請求項４に記載した発明によれば、
スタブ全体が主に誘電体を一体成形した構造であるの
で、加工することなく、しかも著しく容易に製作するこ
とができる。According to the invention described in claim 4,
Since the entire stub has a structure in which the dielectric is mainly integrally molded, it can be manufactured extremely easily without processing.
【図１】本発明に係るスタブの一実施例を示す縦断面図
である。FIG. 1 is a vertical sectional view showing an embodiment of a stub according to the present invention.
【図２】本発明の一実施例に示したスタブを用いたマイ
クロ波用可動スタブチューナの要部概略縦断面図であ
る。FIG. 2 is a schematic vertical cross-sectional view of a main part of a microwave movable stub tuner using a stub according to an embodiment of the present invention.
【図３】本発明に係るスタブの他の実施例を示す縦断面
図である。FIG. 3 is a vertical sectional view showing another embodiment of the stub according to the present invention.
【図４】本発明に係るスタブのさらに他の実施例を示す
縦断面図である。FIG. 4 is a vertical sectional view showing still another embodiment of the stub according to the present invention.
【図５】従来のスタブを用いたマイクロ波用可動スタブ
チューナの要部概略縦断面図である。FIG. 5 is a schematic vertical cross-sectional view of a main part of a movable stub tuner for microwaves using a conventional stub.
３ チョーク部材 ２０ スタブ ２０Ａ 有効部分 ２０Ｂ 非有効部分 3 Choke member 20 Stub 20A Effective part 20B Ineffective part
Claims (4)
と、前記スタブの外周に配設されたマイクロ波用チョー
ク構造を形成するチョーク部材とを具備し、方形導波管
に取付けられたマイクロ波用可動スタブチューナにおい
て、 前記スタブは、可変インピーダンス素子としての有効部
分と前記有効部分以外である非有効部分とが長手方向に
構成されると共に、前記有効部分の少なくとも表面が導
体で形成され、前記非有効部分が誘電体で形成され、 前記有効部分と非有効部分との境界は、前記スタブの可
動時に前記導波管の内壁から管外側へ使用するマイクロ
波の波長の１／４から前記チョーク部材のスタブ挿入開
口面までに設定され、 前記チョーク部材の内径の半分を、前記マイクロ波の波
長のｋ／２π（ｋ：ＴＥ11モードの場合の定数）以下に
したマイクロ波用可動スタブチューナ。1. A movable stub for microwaves, comprising a stub as a variable impedance element, and a choke member disposed on the outer periphery of the stub to form a microwave choke structure, and attached to a rectangular waveguide. In the tuner, the stub has an effective portion as a variable impedance element and an ineffective portion other than the effective portion configured in the longitudinal direction, and at least the surface of the effective portion is formed of a conductor, and the ineffective portion is formed. Is formed of a dielectric material, and the boundary between the effective portion and the ineffective portion is from 1/4 of the wavelength of the microwave used from the inner wall of the waveguide to the outside of the waveguide when the stub is moved, from the stub of the choke member. inserted to the opening plane is set, half of the internal diameter of the choke member, the microwave wavelength of k / 2π (k: constant in the case of the TE 11 mode) Movable stub tuner microwaves down.
求項１に記載のマイクロ波用可動スタブチューナ。2. The movable stub tuner for microwaves according to claim 1, wherein the effective portion is entirely made of a conductor.
求項１に記載のマイクロ波用可動スタブチューナ。3. The movable stub tuner for microwaves according to claim 1, wherein the effective portion is made of a hollow conductor.
施した請求項１に記載のマイクロ波用可動スタブチュー
ナ。4. The movable stub tuner for microwaves according to claim 1, wherein the effective portion is formed by plating a dielectric with metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23067594A JP3583478B2 (en) | 1994-08-30 | 1994-08-30 | Movable stub tuner for microwave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23067594A JP3583478B2 (en) | 1994-08-30 | 1994-08-30 | Movable stub tuner for microwave |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0878914A true JPH0878914A (en) | 1996-03-22 |
| JP3583478B2 JP3583478B2 (en) | 2004-11-04 |
Family
ID=16911547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23067594A Expired - Fee Related JP3583478B2 (en) | 1994-08-30 | 1994-08-30 | Movable stub tuner for microwave |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3583478B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100343898B1 (en) * | 1998-09-11 | 2002-07-19 | 가부시키가이샤 무라타 세이사쿠쇼 | Complex Circuit Board, Nonreciprocal Circuit Device, Resonator, Filter, Duplexer, Communications Device, Circuit Module, Complex Circuit Board Manufacturing Method and Nonreciprocal Circuit Device Manufacturing Method |
| CN105489989A (en) * | 2015-12-24 | 2016-04-13 | 中国电子科技集团公司第五十四研究所 | High-power waveguide electrically tunable filter |
| WO2022080074A1 (en) | 2020-10-15 | 2022-04-21 | 古野電気株式会社 | Stub tuner |
-
1994
- 1994-08-30 JP JP23067594A patent/JP3583478B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100343898B1 (en) * | 1998-09-11 | 2002-07-19 | 가부시키가이샤 무라타 세이사쿠쇼 | Complex Circuit Board, Nonreciprocal Circuit Device, Resonator, Filter, Duplexer, Communications Device, Circuit Module, Complex Circuit Board Manufacturing Method and Nonreciprocal Circuit Device Manufacturing Method |
| CN105489989A (en) * | 2015-12-24 | 2016-04-13 | 中国电子科技集团公司第五十四研究所 | High-power waveguide electrically tunable filter |
| WO2022080074A1 (en) | 2020-10-15 | 2022-04-21 | 古野電気株式会社 | Stub tuner |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3583478B2 (en) | 2004-11-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6794950B2 (en) | Waveguide to microstrip transition | |
| US4651115A (en) | Waveguide-to-microstrip transition | |
| US4642591A (en) | TM-mode dielectric resonance apparatus | |
| US3904997A (en) | Trapped-radiation microwave transmission line | |
| JPH06326505A (en) | Flexible waveguide | |
| CN1252632A (en) | Dielectric antenna and radio apparatus | |
| NO20024468L (en) | Radio frequency antenna feed structure | |
| TW201644092A (en) | Vertical transition structure | |
| CN1371534A (en) | High frequency bandpass filter arrangement with transmission zeros | |
| KR100287258B1 (en) | Dielectric Resonator, Dielectric Filter, Duplexer and Communication Device | |
| US3478282A (en) | Couplings between waveguides and coaxial lines | |
| RU2019008C1 (en) | Waveguide-horn radiator | |
| JPH0878914A (en) | Movable stub tuner for microwave | |
| JP3508040B2 (en) | Waveguide / coaxial converter | |
| GB2398178A (en) | Microwave transitions and antennas | |
| JPH08154008A (en) | Waveguide coaxial transducer | |
| JP4611811B2 (en) | Fin line type microwave band pass filter | |
| KR100266033B1 (en) | High frequency heating device | |
| US2557686A (en) | Wave guide with electrical end termination | |
| JPH0746011A (en) | Power distributor | |
| US6657514B1 (en) | Dielectric transmission line attenuator, dielectric transmission line terminator, and wireless communication device | |
| US5742257A (en) | Offset flared radiator and probe | |
| US2863093A (en) | Traveling wave electron discharge devices | |
| JPH0680965B2 (en) | Dielectric-loaded taper waveguide | |
| KR100233265B1 (en) | Closed loop resonator filter with power resistance characteristics |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20040120 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20040316 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20040720 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20040729 |
|
| R150 | Certificate of patent (=grant) or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080806 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080806 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090806 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090806 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100806 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110806 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110806 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120806 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130806 Year of fee payment: 9 |
|
| LAPS | Cancellation because of no payment of annual fees |