JPS6117403B2 - - Google Patents
Info
- Publication number
- JPS6117403B2 JPS6117403B2 JP14788978A JP14788978A JPS6117403B2 JP S6117403 B2 JPS6117403 B2 JP S6117403B2 JP 14788978 A JP14788978 A JP 14788978A JP 14788978 A JP14788978 A JP 14788978A JP S6117403 B2 JPS6117403 B2 JP S6117403B2
- Authority
- JP
- Japan
- Prior art keywords
- waveguide
- microstrip line
- line
- short
- microstrip
- 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
- 239000004020 conductor Substances 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 9
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices
- H01P5/10—Coupling devices of the waveguide type for linking dissimilar lines or devices for coupling balanced lines or devices with unbalanced lines or devices
- H01P5/107—Hollow-waveguide/strip-line transitions
Landscapes
- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
Description
【発明の詳細な説明】
本発明は、導波管線路からマイクロストリツプ
線路へ伝送信号を滑らかに伝達する導波管とマイ
クロストリツプ線路との変換器に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a waveguide-to-microstrip line converter that smoothly transmits a transmission signal from a waveguide line to a microstrip line.
導波管からマイクロストリツプ線路への変換に
は、導波管から同軸線路に変換し、さらに同軸線
路からマイクロストリツプ線路に変換するもの
と、導波管から直接マイクロストリツプ線路に変
換するものとがある。第１図は、同軸線路を介し
て導波管からマイクロストリツプ線路へ変換する
従来の変換器を示す図で、方形導波管１の短絡終
端２の導波管内面から希望信号の波長の1/4に相
当する長さ離れた位置の導波管壁３の一方のＨ面
から直角に、金属棒４を導波管内へ貫通させ、金
属棒４と導波管壁３との間には誘電体５を挿入
し、金属棒４の導波管の外に出た先端を誘電体板
６に形成したマイクロストリツプ線路７へ接続し
たものである。この変換器は、導波管内の磁界
が、金属棒４を介して、金属棒４を中心導体とし
導波管壁３を接地導体とする同軸モードの電波姿
態に変換され、同軸モードからマイクロストリツ
プ線路のモードに変換されるものであるが、導波
管内の挿入する金属棒４の挿入深さl1によつて変
換の効率が変わり、従つて特性のばらつきが大き
いという欠点があつた。第２図は、誘電体板８上
に形成されたマイクロストリツプ線路９を直接、
第１図に示した金属棒と同じ位置に挿入する従来
の変換器を示す図であるが、やはり挿入深さl2に
より変換の効率が変わり、大きなばらつきをもつ
ていた。 There are two ways to convert a waveguide to a microstrip line: converting the waveguide to a coaxial line, and then converting the coaxial line to a microstrip line, and converting the waveguide directly to a microstrip line. There is a method to convert it to . Figure 1 shows a conventional converter that converts a waveguide to a microstrip line via a coaxial line. A metal rod 4 is passed into the waveguide at a right angle from one H plane of the waveguide wall 3 at a distance corresponding to 1/4 of the distance between the metal rod 4 and the waveguide wall 3. A dielectric 5 is inserted into the waveguide, and the tip of the metal rod 4 protruding from the waveguide is connected to a microstrip line 7 formed on a dielectric plate 6. In this converter, the magnetic field in the waveguide is converted via the metal rod 4 into a coaxial mode radio wave state with the metal rod 4 as the center conductor and the waveguide wall 3 as the ground conductor, and from the coaxial mode to the microstripe The mode is converted into a lip line mode, but the conversion efficiency changes depending on the insertion depth l1 of the metal rod 4 inserted into the waveguide, and therefore, there is a drawback that the characteristics vary widely. . In FIG. 2, a microstrip line 9 formed on a dielectric plate 8 is directly connected.
2 is a diagram showing a conventional transducer inserted at the same position as the metal rod shown in FIG. 1; however, the conversion efficiency also varied depending on the insertion depth l 2 and had large variations.
本発明の目的は、上記した従来技術の欠点をな
くし、簡単な構成で特性のばらつきの少ない導波
管とマイクロストリツプ線路との変換器を提供す
るにある。上記目的を達成するため、本発明は、
終端短絡の方形導波管において、短絡面から希望
信号の波長のほぼ1/4に相当する長さ離れた位置
のＨ面に直角に、中心導体と絶縁の誘導体とから
なる同軸形の線路を貫通させ、その線路の両端を
それぞれ導波管壁を通して導波管の短絡面の外面
から突き出させ、希望信号の波長のほぼ1/2に相
当する長さの差をもつ２つのマイクロストリツプ
線路にそれぞれ接続して合成することにより、導
波管とマイクロストリツプ線路との変換器を構成
するもので、これにより、従来技術の欠点であつ
た変換部の挿入深さによる特性のばらつきを解消
することができる。 SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks of the prior art and to provide a waveguide-microstrip line converter with a simple configuration and less variation in characteristics. In order to achieve the above object, the present invention
In a rectangular waveguide with a shorted terminal, a coaxial line consisting of a center conductor and an insulated dielectric is placed perpendicular to the H plane at a distance corresponding to approximately 1/4 of the wavelength of the desired signal from the shorted surface. Two microstrips with a length difference corresponding to approximately 1/2 of the wavelength of the desired signal are passed through the waveguide, and both ends of the lines protrude from the outer surface of the short-circuited surface of the waveguide through the waveguide wall. A converter between a waveguide and a microstrip line is constructed by connecting the lines to each other and combining them. This eliminates the variation in characteristics due to the insertion depth of the converter, which was a drawback of conventional technology. can be resolved.
以下本発明の一実施例を図面に従つて詳細に説
明する。第３図は該実施例を示す断面図で、終端
短絡の方形導波管１の短絡終端２の導波管内面か
ら希望信号の波長のほぼ1/4に相当する長さだけ
離れた位置において、中心導体１０と誘電体１１
とからなる同軸線路をＨ面に直角に貫通させ該同
軸線路のそれぞれの先端を導波管Ｈ面の管壁を通
して短絡終端２の外面に突き出させる。導波管の
外面に突き出た中心導体１０の２つの先端を、長
さが希望信号の波長のほぼ1/2に相当する長さだ
け異なるマイクロストリツプ線路１２，１３の一
端へそれぞれ接続し、マイクロストリツプ線路１
２と１３のそれぞれの他端を接続し、該接続点と
別のマイクロストリツプ線路１４とを接続する。
方形導波管１の開口面から入射された信号は、方
形導波管１が短絡終端２で短絡されているため、
その短絡面から波長の1/4に相当する長さ戻つた
地点で最大電磁界分布をする。そして、この地点
で、磁界に直交して中心導体１０が配置されてい
るため、信号が中心導体１０と導波管壁３との間
に励起され、同軸モードで伝搬される。第３図に
おいて、信号は、上下のＨ面の中を通る２つの同
軸線路に２等分され、互いに逆相で伝搬する。導
波管から同軸線路で取り出された互いに逆相の信
号を、マイクロストリツプ線路１２と１３で同相
の信号にし、合成してマイクロストリツプ線路１
４から出力する。本実施例の構成は、変換する同
軸線路やマイクロストリツプ線路の挿入深さが関
係しない構造であるため、特性のばらつきが小さ
くなる効果をもつている。 An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 3 is a sectional view showing this embodiment, at a position a distance corresponding to approximately 1/4 of the wavelength of the desired signal from the inner surface of the waveguide at the short-circuited end 2 of the short-circuited rectangular waveguide 1. , center conductor 10 and dielectric 11
A coaxial line consisting of is penetrated perpendicularly to the H plane, and each tip of the coaxial line is made to protrude to the outer surface of the short-circuit terminal end 2 through the tube wall of the H plane of the waveguide. The two tips of the center conductor 10 protruding from the outer surface of the waveguide are connected to one end of the microstrip lines 12 and 13, which differ in length by a length corresponding to approximately 1/2 of the wavelength of the desired signal. , microstrip line 1
The other ends of 2 and 13 are connected, and this connection point is connected to another microstrip line 14.
Since the rectangular waveguide 1 is short-circuited at the short-circuit end 2, the signal incident from the opening surface of the rectangular waveguide 1 is
The maximum electromagnetic field distribution occurs at a point that is a distance equivalent to 1/4 of the wavelength back from the short-circuit surface. At this point, since the center conductor 10 is disposed perpendicular to the magnetic field, a signal is excited between the center conductor 10 and the waveguide wall 3 and propagated in a coaxial mode. In FIG. 3, the signal is divided into two equal halves into two coaxial lines passing through the upper and lower H planes, and propagates in opposite phases to each other. Signals with opposite phases taken out from the waveguide by the coaxial line are made into in-phase signals by the microstrip lines 12 and 13, and are combined and sent to the microstrip line 1.
Output from 4. The configuration of this embodiment has the effect of reducing variations in characteristics because it is a structure that does not depend on the insertion depth of the coaxial line or microstrip line to be converted.
上記した実施例では、方形導波管１は一体のも
のであるが、方形導波管としてＨ面で２等分した
分割導波管を用いると、組立てが簡単である。ま
た、上記実施例では、導波管内を横切る中心導体
に誘電体を取り付けているが、この導波管内の部
分は、誘電体を取り除いて中心導体だけの構造に
しても、効果は同じである。 In the above-described embodiment, the rectangular waveguide 1 is integral, but assembly is easier if a divided waveguide divided into two on the H plane is used as the rectangular waveguide. Furthermore, in the above embodiment, a dielectric is attached to the center conductor that crosses inside the waveguide, but even if the dielectric is removed from the inside of the waveguide and the structure is made up of only the center conductor, the effect will be the same. .
以上詳説したように、本発明によれば、終端短
絡の方形導波管において、短絡面から希望信号の
波長のほぼ1/4に相当する長さ離れた位置のＨ面
に直角に、中心導体と誘電体とからなる同軸形の
線路を貫通させ、該線路の両端を、それぞれ導波
管壁を通して、導波管の短絡面から導波管の外へ
突き出させ、該突き出し部を、希望信号の波形の
ほぼ1/2に相当する長さの差をもつ２つのマイク
ロストリツプ線路にそれぞれ接続して合成するこ
とにより、特性のばらつきの少ない導波管−マイ
クロストリツプ線路変換器を得ることができる。 As explained in detail above, according to the present invention, in a rectangular waveguide with a terminal short circuit, the center conductor is placed perpendicularly to the H plane at a distance corresponding to approximately 1/4 of the wavelength of the desired signal from the short circuit surface. A coaxial line consisting of a dielectric and a dielectric material is passed through the line, and both ends of the line are made to protrude from the short-circuit surface of the waveguide to the outside of the waveguide through the waveguide wall, and the protruding portion is connected to the desired signal. By connecting and composing two microstrip lines with a length difference equivalent to approximately 1/2 of the waveform, we can create a waveguide-microstrip line converter with less variation in characteristics Obtainable.
第１図および第２図は導波管−マイクロストリ
ツプ線路変換器の従来例を示す断面図、第３図は
本発明による導波管−マイクロストリツプ線路変
換器の一実施例を示す断面図である。
符号の説明、１……方形導波管、２……短絡終
端、３……導波管壁、４……金属棒、５……誘電
体、６，８……誘電体板、７，９……マイクロス
トリツプ線路、１０……中心導体、１１……誘電
体、１２，１３，１４……マイクロストリツプ線
路。
1 and 2 are sectional views showing a conventional example of a waveguide-to-microstrip line converter, and FIG. 3 shows an embodiment of the waveguide-to-microstrip line converter according to the present invention. FIG. Explanation of symbols: 1 ... Rectangular waveguide, 2... Short circuit termination, 3... Waveguide wall, 4... Metal rod, 5... Dielectric, 6, 8... Dielectric plate, 7, 9 ...Microstrip line, 10...Center conductor, 11...Dielectric material, 12, 13, 14...Microstrip line.
Claims (1)
短絡面から希望信号の波長のほぼ1/4に相当する
長さ離れた入力側の地点で、中心導体と該中心導
体を囲む円筒状の誘電体棒とからなる線路を該導
波管のＨ面に直角に貫通させ、該線路の両端を、
それぞれ該導波管のＨ面金属壁中を通して、導波
管の前記短絡面の外面へ突き出させ、この導波管
短絡面部から突き出た２本の線路の内、一方を第
１のマイクロストリツプ線路の一端へ接続し、他
方を、該第１のマイクロストリツプ線路よりも希
望信号の波長のほぼ1/2に相当する長さだけ長い
第２のマイクロストリツプ線路の一端へ接続し、
第１および第２のマイクロストリツプ線路のそれ
ぞれの他端を第３のマイクロストリツプ線路の一
端の同一場所に接続し前記導波管の開口端と前記
第３のマイクロストリツプ線路の他端とをそれぞ
れ入出力端とする構成としたことを特徴とする導
波管−ストリツプ線路変換器。1 In a rectangular waveguide with a short-circuited terminal, at a point on the input side that is a length corresponding to approximately 1/4 of the wavelength of the desired signal from the short-circuited surface of the waveguide, a center conductor and a cylindrical shape surrounding the center conductor are connected. A line consisting of dielectric rods is passed through the waveguide at right angles to the H plane, and both ends of the line are
Each of the two lines is passed through the H-plane metal wall of the waveguide and projected to the outer surface of the short-circuit surface of the waveguide, and one of the two lines protruding from the short-circuit surface of the waveguide is connected to a first microstrip. one end of the microstrip line, and connect the other end to one end of a second microstrip line that is longer than the first microstrip line by a length corresponding to approximately 1/2 of the wavelength of the desired signal. death,
The other ends of each of the first and second microstrip lines are connected to one end of a third microstrip line at the same location, and the open end of the waveguide and the third microstrip line are connected to each other. 1. A waveguide-stripline converter characterized in that the other end is configured as an input and output end, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14788978A JPS5575304A (en) | 1978-12-01 | 1978-12-01 | Waveguide-strip line converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14788978A JPS5575304A (en) | 1978-12-01 | 1978-12-01 | Waveguide-strip line converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5575304A JPS5575304A (en) | 1980-06-06 |
| JPS6117403B2 true JPS6117403B2 (en) | 1986-05-07 |
Family
ID=15440470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14788978A Granted JPS5575304A (en) | 1978-12-01 | 1978-12-01 | Waveguide-strip line converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5575304A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6930633B1 (en) | 1988-03-22 | 2005-08-16 | Raytheon Company | Adaptive glint reduction method and system |
| JP6691734B2 (en) | 2013-12-25 | 2020-05-13 | キヤノンメディカルシステムズ株式会社 | Medical image processing apparatus, X-ray diagnostic apparatus, and medical image processing program |
-
1978
- 1978-12-01 JP JP14788978A patent/JPS5575304A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5575304A (en) | 1980-06-06 |
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