JPS586401B2 - Waveguide type variable impedance adjuster - Google Patents
Waveguide type variable impedance adjusterInfo
- Publication number
- JPS586401B2 JPS586401B2 JP7941078A JP7941078A JPS586401B2 JP S586401 B2 JPS586401 B2 JP S586401B2 JP 7941078 A JP7941078 A JP 7941078A JP 7941078 A JP7941078 A JP 7941078A JP S586401 B2 JPS586401 B2 JP S586401B2
- Authority
- JP
- Japan
- Prior art keywords
- rod
- radio wave
- waveguide
- wave absorber
- type variable
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/24—Terminating devices
Landscapes
- Waveguide Connection Structure (AREA)
- Non-Reversible Transmitting Devices (AREA)
Description
【発明の詳細な説明】
本発明は、構成が簡単な導波管形可変インピーダンス調
整器に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a waveguide type variable impedance regulator with a simple configuration.
マイクロ波回路に於けるインピーダンスの測定手段とし
ては既に種々提案されている。Various methods for measuring impedance in microwave circuits have already been proposed.
そのインピーダンス測定手段の一つとしてブリッジ法が
あるが、これには平衡を調整する為のインピーダンス調
整器が用いられている。One of the impedance measuring means is the bridge method, which uses an impedance adjuster to adjust the balance.
このインピーダンス調整器は、反射係数Γ及び位相が独
立に可変可能で、反射係数ΓはＯ〜１．０、位相はＯ〜
３６０°の可変範囲であることが要望される。In this impedance adjuster, the reflection coefficient Γ and phase can be varied independently, and the reflection coefficient Γ is O~1.0 and the phase is O~1.0.
A variable range of 360° is desired.
従来のインピーダンス測定器は、例えば第１図に示すよ
うに、λ２／４（λ 一管内波長）の間隔で導波管に設
けたスタブチューナ（ｊｂ１ ，Ｊ ｌ）２ ｓ ｊ
ｂ３で示す）と無反射終端Ｒとの組合せで構成され、前
述の要望事項を満すものであるが、ミリ波帯に於いては
、スタップ及び導波管が小さくなり、工作精度が著しく
高いものでなければならなくなると共に機械的強度が小
さくなり易い欠点がある。A conventional impedance measurement device, for example, as shown in FIG.
b3) and a non-reflection termination R, which satisfies the above-mentioned requirements, but in the millimeter wave band, the tap and waveguide are smaller and the machining accuracy is significantly higher. However, the mechanical strength tends to be low.
更に機械的接触部を有することにより動作が不安定にな
り易い欠点がある。Furthermore, since there is a mechanical contact part, there is a drawback that the operation tends to become unstable.
又第２図に示す従来のインピーダンス調整器は、誘電体
ＤＥの誘電率ε、その厚さｌ１ を適当に選定し、間隔
１２ と誘電体ＤＥＯ軸方向の位置とにより、反射係数
Γと位相とを独立に調整できるものであるが、ミリ波帯
に於ける低損失の誘電体材料が少なく、低損失の誘電体
があったとしても、その誘電率が小さいので、反射係数
Γの変化範囲が限定される欠点がある。Furthermore, in the conventional impedance adjuster shown in FIG. 2, the dielectric constant ε of the dielectric DE and its thickness l1 are appropriately selected, and the reflection coefficient Γ and phase are adjusted by the interval 12 and the axial position of the dielectric DE. can be adjusted independently, but there are few low-loss dielectric materials in the millimeter wave band, and even if a low-loss dielectric exists, its dielectric constant is small, so the range of change in the reflection coefficient Γ is limited. It has the disadvantage of being limited.
又導波管の軸方向の位置調整の為に、導波管に軸方向の
スリットを形成する必要があり、工作精度及びその他の
問題が生じる。Further, in order to adjust the position of the waveguide in the axial direction, it is necessary to form an axial slit in the waveguide, which causes problems with machining accuracy and other problems.
又第３図に示す従来のインピーダンス調整器は、マジッ
クＴを用いたＥ−Ｈチューナであり、基準位相面と可変
短絡器ＳＤ１との距離ｌ３と、基準位相面と可変短絡器
ＳＤ２との距離ｌ４ とにより、反射係数Γは
で表わされる。The conventional impedance adjuster shown in Fig. 3 is an E-H tuner using a magic T, and the distance l3 between the reference phase plane and the variable short circuit SD1 and the distance between the reference phase plane and the variable short circuit SD2 are The reflection coefficient Γ is expressed by l4.
なおβ＝２π／λ２である。従って（１３１４）を一定
にして（１３＋１４）を変化すれば位相だけが変化する
。Note that β=2π/λ2. Therefore, if (1314) is kept constant and (13+14) is varied, only the phase will change.
又（１３＋１４）を一定にして（１３−１４）を変化す
れば反射係数Γの絶対値が変化する。Furthermore, if (13+14) is kept constant and (13-14) is varied, the absolute value of the reflection coefficient Γ changes.
しかし、このインピーダンス調整器は構造が複雑となる
欠点がある。However, this impedance adjuster has the disadvantage of a complicated structure.
本発明は、前述の如き従来の欠点を改善したもので、構
造が簡単で調整が容易なインピーダンス調整器を提供す
ることを目的とするものである。The present invention improves the conventional drawbacks as described above, and aims to provide an impedance regulator that has a simple structure and is easy to adjust.
以下実施例について詳細に説明する。Examples will be described in detail below.
第４図は本発明の実施例の一部破断斜視図であり、１は
電波吸収体棒、２はショート棒、３はショート板、４は
導波管、１ａはテーパ一部である。FIG. 4 is a partially cutaway perspective view of an embodiment of the present invention, in which 1 is a radio wave absorber rod, 2 is a short rod, 3 is a short plate, 4 is a waveguide, and 1a is a tapered portion.
矩形導波管４のＥ面を中央で２分する位置に電波吸収体
棒１と金属のショート棒２とを、導波管４の端部に接続
した金属のショート板３に軸方向に矢印で示すように調
整可能に設けたものである。A radio wave absorber rod 1 and a metal shorting rod 2 are placed at a position that bisects the E plane of the rectangular waveguide 4 in the center, and an arrow mark is placed in the axial direction on the metal shorting plate 3 connected to the end of the waveguide 4. It is adjustable as shown in .
第５図はショート板３側からみた一部断面図であり、ね
じ５，６により電波吸収体棒１とショート棒２との調整
位置を固定するものである。FIG. 5 is a partial sectional view seen from the side of the short plate 3, in which the adjustment positions of the radio wave absorber rod 1 and the short rod 2 are fixed by screws 5 and 6.
なお他の固定手段を採用し得ることは勿論である。Of course, other fixing means may be used.
前述の如き構成に於いて、電波吸収体棒１のみでは反射
係数Γを変化することができ、又ショート棒２のみでは
位相を変化することができる。In the configuration as described above, the reflection coefficient Γ can be changed only by the radio wave absorber rod 1, and the phase can be changed only by the short rod 2.
又導波管４内の電波吸収体棒１の長さｌ，とショート棒
２の長さ１６ とを変化することにより反射係数Γの
絶対値を変化することができ、電波吸収体棒１とショー
ト棒２との相対位置を保持して導波管４内の長さを変化
することにより位相を変化することができる。Furthermore, by changing the length l of the radio wave absorber rod 1 in the waveguide 4 and the length 16 of the short rod 2, the absolute value of the reflection coefficient Γ can be changed, and the radio wave absorber rod 1 and The phase can be changed by changing the length within the waveguide 4 while maintaining the relative position with the short rod 2.
又実施例に示すように、電波吸収体棒１の先端にテーパ
一部１ａを形成することにより、ＶＳＷＲで１．０５ま
で容易に実現できるものとなる。Further, as shown in the embodiment, by forming the tapered portion 1a at the tip of the radio wave absorber rod 1, the VSWR can be easily achieved up to 1.05.
前述の実施例は、電波吸収体棒１及びショート棒２は断
面円形の場合を示しているが、これは製作が容易である
からであって、正方形等任意の断面形状とすることがで
きるものである。In the above-described embodiment, the radio wave absorber rod 1 and the short rod 2 have a circular cross section, but this is because it is easy to manufacture, and can have any cross-sectional shape such as a square. It is.
以上説明したように、本発明は、電波吸収体棒１とショ
ート棒２とを矩形導波管４のＥ面中央を２分する位置に
それぞれ配置し、矩形導波管４の端部に設けたショート
板３に管軸方向に調整可能に設けたものであり、ミリ波
帯に於いて矩形導波管４０寸法が小さいとしても、その
矩形導波管４の管軸方向に電波体棒１とショート棒２と
を挿入長さ調整可能に設けることは容易であり、第１図
に示す従来例の如く導波管にスタツブを調整可能に取付
ける為の高精度の加工を必要とせず、又第２図に示すよ
うな誘電体による反射係数の可変範囲の制限もなく、更
に第３図に示すＥ−Ｈチューナに比較して構成が著しく
簡単なものとなる利点がある。As explained above, in the present invention, the radio wave absorber rod 1 and the short rod 2 are arranged at positions that bisect the center of the E plane of the rectangular waveguide 4, and are provided at the end of the rectangular waveguide 4. The short plate 3 is provided so as to be adjustable in the tube axis direction, and even if the dimensions of the rectangular waveguide 40 are small in the millimeter wave band, the radio wave body bar 1 can be adjusted in the tube axis direction of the rectangular waveguide 4. It is easy to provide the short rod 2 with an adjustable insertion length, and there is no need for high-precision machining to adjustably attach the stub to the waveguide as in the conventional example shown in FIG. There is no restriction on the variable range of the reflection coefficient due to the dielectric as shown in FIG. 2, and there is an advantage that the configuration is significantly simpler than the E-H tuner shown in FIG. 3.
第１図は従来の無反射終端とスリースタップチューナと
の組合せによるインピーダンス調整器の説明図、第２図
は従来の無反射終端と誘電体との組合せによるインピー
ダンス調整器の説明図、第３図は従来のＥ−Ｈチューナ
によるインピーダンス調整器の説明用斜視図、第４図は
本発明の実施例の一部破断斜視図、第５図はショート板
側からみた一部断面図である。
１は電波吸収体棒、２はショート棒、３はショート板、
４は導波管、５，６はねじである。Fig. 1 is an explanatory diagram of an impedance regulator using a conventional non-reflection termination and a three-tap tuner combination, Fig. 2 is an explanatory diagram of an impedance regulator using a conventional non-reflection termination and a dielectric combination, and Fig. 3 4 is a partially cutaway perspective view of an embodiment of the present invention, and FIG. 5 is a partially sectional view seen from the short plate side. 1 is a radio wave absorber rod, 2 is a short rod, 3 is a short plate,
4 is a waveguide, and 5 and 6 are screws.
Claims (1)
の電波吸収体棒とショート棒とをそれぞれ配置し、前記
電波吸収体棒とショート棒とを前記矩形導波管端部に設
けたショート板に、管軸方向の位置を調整可能に設けた
ことを特徴とする導波管形可変インピーダンス調整器。 ２ 前記電波吸収体棒は先端にテーパ一部が形成されて
いることを特徴とする特許請求の範囲第１項記載の導波
管形可変インピーダンス調整器。[Scope of Claims] 1. A radio wave absorber rod and a short rod parallel to the tube axis are arranged at positions that bisect the center of the E-plane of a rectangular waveguide, and the radio wave absorber rod and the short rod are connected to the A waveguide type variable impedance adjuster characterized in that a short plate provided at the end of a rectangular waveguide is provided so that its position in the tube axis direction can be adjusted. 2. The waveguide type variable impedance adjuster according to claim 1, wherein the radio wave absorber rod has a tapered portion formed at its tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7941078A JPS586401B2 (en) | 1978-06-30 | 1978-06-30 | Waveguide type variable impedance adjuster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7941078A JPS586401B2 (en) | 1978-06-30 | 1978-06-30 | Waveguide type variable impedance adjuster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS556949A JPS556949A (en) | 1980-01-18 |
| JPS586401B2 true JPS586401B2 (en) | 1983-02-04 |
Family
ID=13689083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7941078A Expired JPS586401B2 (en) | 1978-06-30 | 1978-06-30 | Waveguide type variable impedance adjuster |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS586401B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0142379Y2 (en) * | 1983-12-12 | 1989-12-12 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3618177B1 (en) * | 2017-05-22 | 2021-05-12 | Mitsubishi Electric Corporation | Waveguide nonreflective-terminator and waveguide circuit |
-
1978
- 1978-06-30 JP JP7941078A patent/JPS586401B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0142379Y2 (en) * | 1983-12-12 | 1989-12-12 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS556949A (en) | 1980-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4977383A (en) | Resonator structure | |
| US2407267A (en) | Ultra high frequency attenuator | |
| US2356414A (en) | Tunable resonant cavity device | |
| US2619538A (en) | Wave guide attenuator | |
| US2439809A (en) | Temperature compensation means for fixed reactances in tunable circuits | |
| US3139597A (en) | Adjustable microwave phase shifter using stripling having variable dielectric | |
| JPH09506496A (en) | Dielectric resonator | |
| JPS586401B2 (en) | Waveguide type variable impedance adjuster | |
| US2496879A (en) | High-frequency detection and measurement device | |
| FI88228B (en) | DIELEKTRISK RESONATOR STRUCTURE | |
| US2758287A (en) | Arrangements for compensating the effects of discontinuities in electromagnetic waveguides | |
| JPH09506494A (en) | Dielectric resonator | |
| US2944234A (en) | Adjustable impedance for use in waveguides | |
| US3388350A (en) | Microwave transmission line apparatus having flexibly connected displaceable conductor | |
| US2922963A (en) | Adjustable waveguide termination | |
| US4272744A (en) | Rectangular waveguide elbow bent across the broad side of the waveguide with corner flattening and a transverse bar | |
| US4205286A (en) | Temperature stabilized helical resonator | |
| US3108237A (en) | Variable microwave phase shifter having moveable reactive stubs | |
| US3828282A (en) | Variable wave-guide impedance for measurement and calibration of an active microwave element | |
| SU1164808A1 (en) | Phase shifter | |
| US2353155A (en) | Measuring device | |
| US2379165A (en) | Ultra high frequency wavemeter | |
| US3742400A (en) | Differential radius transmission line length adjuster | |
| JPS6329281Y2 (en) | ||
| JPS59117801A (en) | Microstrip circuit |