JPS6157721B2 - - Google Patents
Info
- Publication number
- JPS6157721B2 JPS6157721B2 JP14465280A JP14465280A JPS6157721B2 JP S6157721 B2 JPS6157721 B2 JP S6157721B2 JP 14465280 A JP14465280 A JP 14465280A JP 14465280 A JP14465280 A JP 14465280A JP S6157721 B2 JPS6157721 B2 JP S6157721B2
- Authority
- JP
- Japan
- Prior art keywords
- coaxial line
- line
- radial
- coaxial
- stub angle
- 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
- H01P3/00—Waveguides; Transmission lines of the waveguide type
- H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
- H01P3/06—Coaxial lines
Landscapes
- Waveguides (AREA)
Description
【発明の詳細な説明】
この発明は、マイクロ波で用いる同軸線路のス
タブアングルの改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improving the stub angle of a coaxial line used in microwaves.
第１図に従来の同軸線路のスタブアングルの断
面図を示す。図中、１は同軸線路Ａ、２，３はそ
れぞれ同軸線路Ａ１の内導体Ａ及び外導体Ａ、４
は同軸線路Ｂ、５，６はそれぞれ同軸線路Ｂ４の
内導体Ｂ及び外導体Ｂ、７は同軸線路Ｃ、８，９
はそれぞれ同軸線路Ｃ７の内導体Ｃ及び外導体
Ｃ、１０は同軸線路Ｃ７の一端を短絡するための
短絡板である。 FIG. 1 shows a sectional view of a stub angle of a conventional coaxial line. In the figure, 1 is the coaxial line A, 2 and 3 are the inner conductor A and outer conductor A of the coaxial line A1, and 4
is coaxial line B, 5 and 6 are inner conductor B and outer conductor B of coaxial line B4, respectively, 7 is coaxial line C, 8, 9
are an inner conductor C and an outer conductor C of the coaxial line C7, respectively, and 10 is a shorting plate for shorting one end of the coaxial line C7.
同軸線路Ｃ７の電気長を約90度とすれば、同軸
線路Ｃ７の一端を短絡しているため、同軸線路Ａ
１、同軸線路Ｂ４、同軸線路Ｃ７を分岐する分岐
点の同軸線路Ｃ７側は電気的に開放状態となる。
このため、このスタブアングルは、電気的に同軸
線路Ｃ７の影響を受けない。従来のスタブアング
ルは、内導体Ｂ５と短絡板１０との距離L1を約
４分の１波長の長さにすることにより電気的に整
合をとつている。 If the electrical length of coaxial line C7 is approximately 90 degrees, one end of coaxial line C7 is short-circuited, so coaxial line A
1. The coaxial line C7 side of the branch point where the coaxial line B4 and the coaxial line C7 are branched is electrically open.
Therefore, this stub angle is not electrically affected by the coaxial line C7. The conventional stub angle achieves electrical matching by setting the distance L1 between the inner conductor B5 and the shorting plate 10 to about a quarter wavelength.
このため、従来のスタブアングルは、使用周波
数が低いと、L1が大きくなる欠点があつた。 For this reason, the conventional stub angle has the disadvantage that L1 becomes large when the operating frequency is low.
この発明は、この欠点を除去するため、終端を
短絡し、かつ電気長を90度とする副伝送路の一部
にラジアル線路を用いたもので、以下図面につい
てこの発明を詳細に説明する。 In order to eliminate this drawback, the present invention uses a radial line as a part of the sub-transmission line with the terminal end short-circuited and the electrical length of 90 degrees.This invention will be described in detail below with reference to the drawings.
第２図は、この発明の実施例を示すスタブアン
グルの断面図であつて、１から９は第１図に示し
たものと同一であり、１１は、側板Ａ１２及び側
板Ｂ１３で構成されるラジアル線路であり、ラジ
アル線路１１は、底板１４で先端が短絡されてい
る。 FIG. 2 is a sectional view of a stub angle showing an embodiment of the present invention, in which 1 to 9 are the same as those shown in FIG. The radial line 11 is short-circuited at the tip at the bottom plate 14.
ラジアル線路１１は、従来からマイクロ波のチ
ヨークなどに用いられており、ここでは、チヨー
クの場合と同様にラジアル線路のＥ波の基本波で
あるE00モード波を用いる。 The radial line 11 has conventionally been used as a microwave choke, and here, as in the case of the choke, an E 00 mode wave, which is the fundamental wave of the E wave of the radial line, is used.
E00モード波は、同軸線路のTEMモード波と同
様にしや断波長の存在しないモード波である。 The E 00 mode wave is a mode wave that does not have a sinusoidal wavelength, similar to the TEM mode wave of a coaxial line.
分岐点から同軸線路Ｃ７を伝搬する同軸線路の
TEMモード波は、ラジアル線路１１においてチ
ヨークの場合と同様にE00モード波に変換され
る。 The coaxial line propagating from the branch point to the coaxial line C7
The TEM mode wave is converted into an E 00 mode wave in the radial line 11 in the same way as in the case of a chiyoke.
このとき、ラジアル線路１１の先端を短絡し、
ラジアル線路１１の電気長をθ１、同軸線路Ｃ７
の電気長をθ２とし、
θ１＋θ２＝90゜
となるようにラジアル線路及び同軸線路Ｃ７の長
さを調整すれば、分岐点の同軸線路Ｃ７側は開放
状態となる。 At this time, the tip of the radial line 11 is short-circuited,
The electrical length of the radial line 11 is θ 1 , and the coaxial line C7
If the electrical length of is θ 2 and the lengths of the radial line and coaxial line C7 are adjusted so that θ 1 +θ 2 =90°, the coaxial line C7 side of the branch point will be in an open state.
このため、この発明によるラジアル線路を用い
たスタブアングルは、従来のスタブアングルと同
様に電気的に整合をとることができる。しかも、
ラジアル線路を用いたスタブアングルは、同軸線
路Ｃ７の長さL2を小さくでき、したがつて低い
周波数で用いる場合も軸長が長くならない長所が
ある。 Therefore, the stub angle using the radial line according to the present invention can be electrically matched in the same way as the conventional stub angle. Moreover,
The stub angle using a radial line has the advantage that the length L2 of the coaxial line C7 can be made small, and therefore the axial length does not become long even when used at a low frequency.
なお、以上は、同軸線路の横断面の形状につい
て特に断わらなかつたが、同軸線路の横断面の形
状は、円形、方形、楕円、その他の形状を使用で
きる。 Although the shape of the cross section of the coaxial line is not particularly specified above, the shape of the cross section of the coaxial line may be circular, rectangular, elliptical, or other shapes.
以上のように、この発明に係る同軸線路スタブ
アングルでは、一端を短絡して用いるＴ字形分岐
路の伝送路の一部にラジアル線路を用いることに
より軸長の短かいスタブアングルを得ることがで
きる利点がある。 As described above, in the coaxial line stub angle according to the present invention, a stub angle with a short axial length can be obtained by using a radial line as a part of the transmission line of the T-shaped branch line that is used by short-circuiting one end. There are advantages.
第１図は従来のスタブアングル断面図、第２図
はこの発明の一実施例のラジアル線路を用いたス
タブアングルである。
図中、１は同軸線路Ａ、２は内導体Ａ、３は外
導体Ａ、４は同軸線路Ｂ、５は内導体Ｂ、６は外
導体Ｂ、７は同軸線路Ｃ、８は内導体Ｃ、９は外
導体Ｃ、１０は短絡板、１１はラジアル線路、１
２は側板Ａ、１３は側板Ｂ、１４は底板である。
なお、図中、同一あるいは相当部分には同一符号
を付して示してある。
FIG. 1 is a sectional view of a conventional stub angle, and FIG. 2 is a stub angle using a radial line according to an embodiment of the present invention. In the figure, 1 is coaxial line A, 2 is inner conductor A, 3 is outer conductor A, 4 is coaxial line B, 5 is inner conductor B, 6 is outer conductor B, 7 is coaxial line C, 8 is inner conductor C , 9 is the outer conductor C, 10 is the shorting plate, 11 is the radial line, 1
2 is a side plate A, 13 is a side plate B, and 14 is a bottom plate.
In the drawings, the same or corresponding parts are denoted by the same reference numerals.
Claims (1)
路とし、かつ残りの一端子を副伝送路とするとと
もに上記副伝送路の一端を短絡するようにした約
90度の電気長を有する同軸線路のスタブアングル
において、上記副伝送路の一部にラジアル線路を
設けたことを特徴とする同軸線路のスタブアング
ル。1 A T-shaped branch where the mutually orthogonal terminals are used as the main transmission line, the remaining terminal is used as the sub-transmission line, and one end of the sub-transmission line is short-circuited.
A stub angle for a coaxial line having an electrical length of 90 degrees, characterized in that a radial line is provided in a part of the sub-transmission line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14465280A JPS5768901A (en) | 1980-10-16 | 1980-10-16 | Stub angle for coaxial line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14465280A JPS5768901A (en) | 1980-10-16 | 1980-10-16 | Stub angle for coaxial line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5768901A JPS5768901A (en) | 1982-04-27 |
| JPS6157721B2 true JPS6157721B2 (en) | 1986-12-08 |
Family
ID=15367059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14465280A Granted JPS5768901A (en) | 1980-10-16 | 1980-10-16 | Stub angle for coaxial line |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5768901A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6186644B2 (en) * | 2013-02-08 | 2017-08-30 | 日本無線株式会社 | T-shaped coaxial tube |
-
1980
- 1980-10-16 JP JP14465280A patent/JPS5768901A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5768901A (en) | 1982-04-27 |
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