JPH0758845B2 - Strip line power supply device - Google Patents
Strip line power supply deviceInfo
- Publication number
- JPH0758845B2 JPH0758845B2 JP61233788A JP23378886A JPH0758845B2 JP H0758845 B2 JPH0758845 B2 JP H0758845B2 JP 61233788 A JP61233788 A JP 61233788A JP 23378886 A JP23378886 A JP 23378886A JP H0758845 B2 JPH0758845 B2 JP H0758845B2
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- power
- supply device
- feeding point
- stripline
- 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
Links
- 239000004020 conductor Substances 0.000 claims description 35
- 239000002184 metal Substances 0.000 description 21
- 230000005540 biological transmission Effects 0.000 description 17
- 239000000758 substrate Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Waveguide Aerials (AREA)
Description
【発明の詳細な説明】 〔技術分野〕 本発明は、トリプレート構造の基板の中心導体として形
成されるストリップラインへ、同軸線路又は導波管等の
他の伝送路から給電するストリップライン給電装置に関
する。Description: TECHNICAL FIELD The present invention relates to a stripline power feeding device for feeding a stripline formed as a central conductor of a substrate having a triplate structure from another transmission line such as a coaxial line or a waveguide. Regarding
（背景技術〕 従来、この種の給電装置で基板に対し垂直方向から給電
する場合、即ち第７図に示すように、２つの外導体A,B
と誘電体層C,Dを介してその間に挟み込まれた中心基板
Ｅから成るトリプレート構造体の中心基板Ｅ上に形成さ
れたストリップラインＦに、外部の同軸線路又は導波管
等の他の伝送路から給電する場合、給電ピンＧを一方の
外導体Ｂに形成した給電ピンＧより十分大きな貫通孔Ｈ
に通し、更に中心基板Ｅに形成した給電ピンＧと略同径
の貫通孔Ｉに通し、半田Ｊにより給電ピンＧとストリッ
プラインＦを接続させることで、他の伝送路とストリッ
プラインＦを電気的に接続している。給電ピンＧはコネ
クタＫの芯線を用い、コネクタＫは外導体Ｂに固定され
る。この場合、給電点Ｌ付近では電磁界分布の不連続性
が大きくなり、電磁波の反射が発生する。また、誘電体
層C,Dの厚さが大きい場合や誘電体層C,Dの誘電率が小さ
い場合は、表面波等の他の伝送モードの発生により、伝
送損失が増加し、良好な伝送特性が得られないという欠
点があった。特に前記表面波の発生による伝送損失は、
誘電体層C,Dの厚さとは正の相関、誘電体層C,Dの誘電率
とは負の相関があるので、誘電体層C,Dが空気であるサ
スペンデッド構造のものでは、空気の誘電率が小さく、
伝送損失は大幅に増大することになる。(Background Art) Conventionally, in the case of supplying power from a direction perpendicular to a substrate with this type of power supply device, that is, as shown in FIG. 7, two outer conductors A and B are used.
And a strip line F formed on the central substrate E of a tri-plate structure composed of the central substrate E sandwiched between the dielectric substrate C and the dielectric layers C and D, to the external coaxial line or other waveguide or the like. When power is supplied from the transmission line, the through hole H which is sufficiently larger than the power supply pin G formed on the one outer conductor B of the power supply pin G.
Through the through hole I formed in the central substrate E and having a diameter substantially the same as that of the feed pin G, and connecting the feed pin G and the strip line F with the solder J to electrically connect the other transmission lines and the strip line F. Connected to each other. The power supply pin G uses the core wire of the connector K, and the connector K is fixed to the outer conductor B. In this case, the discontinuity of the electromagnetic field distribution becomes large near the feeding point L, and electromagnetic waves are reflected. If the dielectric layers C and D are thick or the dielectric layers C and D have a low dielectric constant, the transmission loss increases due to the generation of other transmission modes such as surface waves, resulting in good transmission. There was a drawback that the characteristics could not be obtained. Especially, the transmission loss due to the generation of the surface wave is
Since there is a positive correlation with the thickness of the dielectric layers C and D and a negative correlation with the dielectric constants of the dielectric layers C and D, in the suspended structure where the dielectric layers C and D are air, Has a low dielectric constant,
Transmission loss will increase significantly.
本発明は、上記の点に鑑みて成したものであって、その
目的とするところは、トリプレート構造のストリップラ
インにおいて、伝送損失の小さいストリップライン給電
装置を提供することにある。The present invention has been made in view of the above points, and an object of the present invention is to provide a stripline power supply device having a small transmission loss in a stripline having a triplate structure.
本発明のストリップライン給電装置は、２つの外導体
と、前記外導体間に誘電体層を介して挟み込まれた中心
導体と、前記一方の外導体を貫通し前記中心導体の給電
点へ給電する給電ピンとから成り、前記給電ピンを通し
て給電するようにしたトリプレート構造のストリップラ
イン給電装置において、３個以上の棒状導電性材料でな
り、少なくとも前記外導体のいずれかに接続され、前記
誘電体層の両方に存在し、それぞれの間隔が給電点の近
傍で発生する表面波の波長の略1/2以下であり、それぞ
れを結んで形成される範囲に給電点を位置せしめる導電
性部材とを設けたことにより、伝送損失の小さいストリ
ップライン給電装置を提供するものである。The stripline power feeding device of the present invention passes through two outer conductors, a center conductor sandwiched between the outer conductors via a dielectric layer, and one of the outer conductors to feed power to the feeding point of the center conductor. A stripline power feeding device having a triplate structure, comprising a power feeding pin and feeding power through the power feeding pin, made of three or more rod-shaped conductive materials, connected to at least one of the outer conductors, and the dielectric layer. And a conductive member that locates the feeding point in the range formed by connecting each of them, and the distance between them is approximately 1/2 or less of the wavelength of the surface wave generated near the feeding point. As a result, the present invention provides a stripline power supply device with low transmission loss.
（実施例） 以下、本発明の実施例を第１図乃至第６図に基づき説明
する。(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 6.
1,2は遮蔽の機能を備えた接地された外導体である。こ
の外導体1,2はスリットを形成すれば放射器としての働
きも兼ね備える。３は中心基板で、上面には中心導体と
なるストリップライン４が形成されており、外導体1,2
の間に誘電体層5,6を介して設置される。この誘電体層
5,6は空気層でもよい。（この場合はサスペンデッド構
造となる。）ストリップライン４は、誘電体層5,6が空
気層でない場合は、その下面あるいは上面に直接エッチ
ングにより形成してもよい。７は給電ピンで、その一端
は外導体２に形成された給電ピン７の径より十分大きい
径の貫通孔８に通し、更に誘電体層６及び中心基板３に
形成された給電ピン７の径と略同径の貫通孔9aを貫通
し、半田10によりストリップライン４の給電点4aに接続
される。給電ピン７の他端は、同軸ケーブルや導波管等
の伝送線に接続される。前記伝送線が同軸ケーブルの場
合は、一般的には第１図の如く、その接続はコネクタ11
を介して行い、その時給電ピン７はコネクタ11の芯線と
共用してもよい。前記伝送線が導波管12の場合は第２図
の如く、その接続は導波管12に給電ピン７を挿入して接
続される。Reference numerals 1 and 2 are grounded outer conductors having a shielding function. The outer conductors 1 and 2 also have a function as radiators by forming slits. A central substrate 3 has a stripline 4 serving as a central conductor formed on the upper surface thereof.
Are installed via the dielectric layers 5 and 6. This dielectric layer
5 and 6 may be air layers. (In this case, the structure becomes a suspended structure.) The strip line 4 may be formed by directly etching the lower surface or the upper surface of the dielectric layers 5 and 6 when they are not air layers. Reference numeral 7 denotes a power feeding pin, one end of which is passed through a through hole 8 having a diameter sufficiently larger than the diameter of the power feeding pin 7 formed in the outer conductor 2, and further the diameter of the power feeding pin 7 formed on the dielectric layer 6 and the central substrate 3. It penetrates through a through hole 9a having substantially the same diameter as, and is connected to the feeding point 4a of the strip line 4 by the solder 10. The other end of the power supply pin 7 is connected to a transmission line such as a coaxial cable or a waveguide. When the transmission line is a coaxial cable, the connection is generally made by a connector 11 as shown in FIG.
The power supply pin 7 may be shared with the core wire of the connector 11 at that time. When the transmission line is the waveguide 12, as shown in FIG. 2, the connection is made by inserting the feeding pin 7 into the waveguide 12.
なお給電ピン７の外周部は、一般的にテフロン等の誘電
体材料13,14で被われているがこの誘電体材料13,14はな
くてもよい。The outer peripheral portion of the power feeding pin 7 is generally covered with dielectric materials 13 and 14 such as Teflon, but the dielectric materials 13 and 14 may be omitted.
15は棒状の導電性部材で、金属製ネジである。なおこれ
はネジに限らず金属製ピンや金属製棒材等、棒状で導電
性を有するものであれば良い。金属ネジの取り付けはコ
ネクタ11に形成した貫通孔11aと、外導体２及び中心基
板３の貫通孔11aに対応する位置に形成したネジ孔2a,及
び貫通孔3aに金属ネジ15を通してネジ止め固定する。ネ
ジ孔及び貫通孔の形成位置即ち金属ネジ15の設置位置は
第３図に示す如く、給電点4aの周囲に４つの金属ネジ15
を設置している。更に、各々の金属ネジ15は誘電体層5,
6の厚み方向の全域にわたって設置している。４つの金
属ネジ15を結んで形成される４角形は給電点4aを囲み、
しかも４つの金属ネジ15間の距離r1，r2，r3，r4のそれ
ぞれは全て、給電点4aの近傍で発生する表面波の波長λ
ｓの略1/2以下である。更に、金属ピン15の長さ方向の
位置関係としては、必ずしも第４図（ａ）に示す如く誘
電体層5,6の厚み方向の全域にわたって設置している必
要はなく、第４図（ｂ），（ｃ）に示す如く誘電体層５
あるいは誘電体層６の一部が欠けていたり、同図（ｄ）
に示す如く、誘電体層5,6の両層のわたって部分的に欠
けていてもよい。Reference numeral 15 is a rod-shaped conductive member, which is a metal screw. It should be noted that this is not limited to screws, and any rod-shaped and electrically conductive member such as a metal pin or a metal rod may be used. The metal screw is attached by fixing the through hole 11a formed in the connector 11, the screw hole 2a formed at a position corresponding to the through hole 11a of the outer conductor 2 and the central substrate 3, and the through hole 3a by screwing the metal screw 15 therethrough. . As shown in FIG. 3, the forming positions of the screw holes and the through holes, that is, the installing positions of the metal screws 15 are four metal screws 15 around the feeding point 4a.
Has been installed. In addition, each metal screw 15 has a dielectric layer 5,
It is installed all over the thickness direction of 6. A quadrangle formed by connecting four metal screws 15 surrounds the feeding point 4a,
Moreover, the distances r 1 , r 2 , r 3 , r 4 between the four metal screws 15 are all wavelength λ of the surface wave generated near the feeding point 4a.
It is about 1/2 or less of s . Further, regarding the positional relationship in the length direction of the metal pin 15, it is not always necessary to dispose the metal pin 15 over the entire area in the thickness direction of the dielectric layers 5 and 6 as shown in FIG. ), (C) as shown in FIG.
Alternatively, a part of the dielectric layer 6 is missing, or (d) in FIG.
As shown in FIG. 5, the dielectric layers 5 and 6 may be partially cut off over both layers.
ここで重要なことは、金属ネジ15は、３個以上の棒状導
電性材料でなり、少なくとも前記外導体1,2のいずれか
に接続され、誘電体層5,6の両方に存在し、その金属ネ
ジ15間の距離が給電点4aの近傍で発生する表面波の波長
λｓの略1/2以下であり、それぞれを結んで形成される
範囲に給電点4aを位置せしめることである。What is important here is that the metal screw 15 is made of three or more rod-shaped conductive materials, is connected to at least one of the outer conductors 1 and 2, and is present in both of the dielectric layers 5 and 6, and The distance between the metal screws 15 is approximately 1/2 or less of the wavelength λ s of the surface wave generated in the vicinity of the feeding point 4a, and the feeding point 4a is located in the range formed by connecting them.
上記の実施例はストリップライン４の中央から給電する
場合であるが、ストリップライン４の端部から給電する
場合は、金属ネジ15は第５図（ａ），（ｂ）のような配
置となる （実施例） 次に、上記実施例の実験例を示す。In the above embodiment, power is fed from the center of the strip line 4, but when power is fed from the end of the strip line 4, the metal screws 15 are arranged as shown in FIGS. 5 (a) and 5 (b). Example Next, an experimental example of the above example will be described.
第６図（ａ）乃至（ｅ）に、金属ネジ15の設置位置及び
金属ネジ15間の距離関係と、それに対応する透過電力の
伝送特性を示す。ここで金属ピン15の長さ方向の位置関
係は第４図（ａ）の如く誘電体層5,6の厚さ方向全域に
わたってあるものを用いている。また、給電点4aの近傍
で発生する表面波の波長λｓは30mmである。FIGS. 6A to 6E show the installation position of the metal screw 15 and the distance relationship between the metal screws 15 and the transmission characteristics of the transmitted power corresponding thereto. Here, the positional relationship in the length direction of the metal pin 15 is such that the dielectric layers 5 and 6 are in the entire thickness direction as shown in FIG. 4 (a). The wavelength λ s of the surface wave generated near the feeding point 4a is 30 mm.
本実験例からわかるように、第６図（ａ），（ｄ）の場
合は従来例と比較して透過電力が増加しているが、他の
場合は従来例と略同じ透過電力しか得られない。即ち、
金属ネジ15を結んで形成される範囲（図中太線で囲まれ
た部分）が給電点4aを囲み、しかもその金属ネジ15間の
距離が全て、給電点4aの近傍で発生する表面波の波長λ
ｓの略1/2（15mm）以下であるような位置に、金属ピン1
5が配置された場合のみ透過電力の伝送特性が良くなる
（伝送損失の低減）という効果を奏する。As can be seen from the present experimental example, in the cases of FIGS. 6 (a) and 6 (d), the transmitted power is increased as compared with the conventional example, but in other cases, only the substantially same transmitted power is obtained as in the conventional example. Absent. That is,
The range formed by connecting the metal screws 15 (the part surrounded by the thick line in the figure) surrounds the feeding point 4a, and the distance between the metal screws 15 is all the wavelength of the surface wave generated near the feeding point 4a. λ
Place a metal pin 1 at a position that is approximately 1/2 (15 mm) or less of s
Only when 5 is arranged, the transmission characteristic of the transmitted power is improved (the transmission loss is reduced).
以上のように本発明によれば、２つの外導体と、前記外
導体間に誘電体層を介して挟み込まれた中心導体と、前
記一方の外導体を貫通し前記中心導体の給電点へ給電す
る給電ピンとから成り、前記給電ピンを通して給電する
ようにしたトリプレート構造のストリップライン給電装
置において、３個以上の棒状電性材料でなり、少なくと
も前記外導体のいずれかに接続され、前記誘電体層の両
方に存在し、それぞれの間隔が給電点の近傍で発生する
表面波の波長の略1/2以下であり、それぞれを結んで形
成される範囲に給電点を位置せしめる導電性部材とを設
けたので、伝送損失を低減したストリップライン給電装
置が提供できた。As described above, according to the present invention, the two outer conductors, the center conductor sandwiched between the outer conductors via the dielectric layer, and the one outer conductor are penetrated to feed power to the feeding point of the center conductor. In a stripline power supply device having a triplate structure configured to supply power through the power supply pin, the stripline power supply device is made of three or more rod-shaped conductive materials and is connected to at least one of the outer conductors, and the dielectric There is a conductive member that is present in both layers and has an interval of approximately 1/2 or less of the wavelength of the surface wave generated near the feeding point, and positions the feeding point in the range formed by connecting each of them. Since it is provided, a stripline power supply device with reduced transmission loss can be provided.
【図面の簡単な説明】 第１図乃至第６図は、本発明の一実施例を示すも ので、 第１図は、その断面図、 第２図は、第１図のコネクタを導波管にしたもの の断面図、 第３図は、第１図のものの平面図、 第４図は、（ａ）乃至（ｄ）は、導電性部材の各 種変形例を示す模式図、 第５図（ａ）及び（ｂ）は、端部給電の場合の模 式図、 第６図は、実験例を示す特性図、 第７図は、従来例を示す断面図である。 1,2……外導体、３……中心基板、４……ストリップラ
イン（中心導体）、4a……給電点、5,6……誘電体層、
７……給電ピン、15……導電性部材BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 to 6 show an embodiment of the present invention. FIG. 1 is a sectional view thereof, and FIG. 2 is a waveguide of the connector of FIG. FIG. 3 is a plan view of FIG. 1, FIG. 4 is a schematic view showing various modifications of the conductive member, and FIG. (A) and (b) are schematic diagrams in the case of end feeding, FIG. 6 is a characteristic diagram showing an experimental example, and FIG. 7 is a sectional view showing a conventional example. 1,2 ... Outer conductor, 3 ... Center substrate, 4 ... Strip line (center conductor), 4a ... Feeding point, 5,6 ... Dielectric layer,
7 ... Power supply pin, 15 ... Conductive member
Claims (1)
を介して挟み込まれた中心導体と、前記一方の外導体を
貫通し前記中心導体の給電点へ給電する給電ピンとから
成り、前記給電ピンを通して給電するようにしたトリプ
レート構造のストリップライン給電装置において、３個
以上の棒状導電性材料でなり、少なくとも前記外導体の
いずれかに接続され、前記誘電体層の両方に存在し、そ
れぞれの間隔が給電点の近傍で発生する表面波の波長の
略1/2以下であり、それぞれを結んで形成される範囲に
給電点を位置せしめる導電性部材を設けたことを特徴と
するストリップライン給電装置。1. An outer conductor comprising: two outer conductors; a center conductor sandwiched between the outer conductors via a dielectric layer; and a power feed pin which penetrates the one outer conductor and feeds power to a feeding point of the center conductor. A stripline power supply device having a triplate structure adapted to supply power through the power supply pins, the stripline power supply device being made of three or more rod-shaped conductive materials, connected to at least one of the outer conductors, and present in both of the dielectric layers However, each spacing is approximately 1/2 or less of the wavelength of the surface wave generated near the feeding point, and a conductive member for positioning the feeding point in the range formed by connecting each is provided. Stripline power supply device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61233788A JPH0758845B2 (en) | 1986-10-01 | 1986-10-01 | Strip line power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61233788A JPH0758845B2 (en) | 1986-10-01 | 1986-10-01 | Strip line power supply device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6388902A JPS6388902A (en) | 1988-04-20 |
| JPH0758845B2 true JPH0758845B2 (en) | 1995-06-21 |
Family
ID=16960576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61233788A Expired - Lifetime JPH0758845B2 (en) | 1986-10-01 | 1986-10-01 | Strip line power supply device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0758845B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6090071B2 (en) | 2013-08-30 | 2017-03-08 | 日立金属株式会社 | Antenna device |
| JP6070484B2 (en) | 2013-08-30 | 2017-02-01 | 日立金属株式会社 | Antenna device |
| JP6013296B2 (en) * | 2013-09-03 | 2016-10-25 | 日本電信電話株式会社 | High frequency transmission line |
| JP6013297B2 (en) * | 2013-09-03 | 2016-10-25 | 日本電信電話株式会社 | High frequency transmission line |
| JP2015139051A (en) | 2014-01-21 | 2015-07-30 | 日立金属株式会社 | antenna device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6022647Y2 (en) * | 1980-06-16 | 1985-07-05 | 三菱電機株式会社 | Multilayer transmission line structure |
| JPS60181902U (en) * | 1984-05-15 | 1985-12-03 | 三菱電機株式会社 | Coaxial to triple plate line conversion connector |
-
1986
- 1986-10-01 JP JP61233788A patent/JPH0758845B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6388902A (en) | 1988-04-20 |
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