JPS63940A - Manufacture of cross spiral slow-wave structure of traveling wave tube - Google Patents
Manufacture of cross spiral slow-wave structure of traveling wave tubeInfo
- Publication number
- JPS63940A JPS63940A JP14438586A JP14438586A JPS63940A JP S63940 A JPS63940 A JP S63940A JP 14438586 A JP14438586 A JP 14438586A JP 14438586 A JP14438586 A JP 14438586A JP S63940 A JPS63940 A JP S63940A
- Authority
- JP
- Japan
- Prior art keywords
- spiral
- spirals
- core
- slow
- crossed
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 238000004804 winding Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 2
- 239000001257 hydrogen Substances 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 238000010894 electron beam technology Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Landscapes
- Microwave Tubes (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、螺旋形遅波回路を有する進行波管に関するも
のであり、特に進行波管の効果螺旋形遅波回路の製造方
法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a traveling wave tube having a helical slow-wave circuit, and more particularly to a method for manufacturing an effective helical slow-wave circuit of a traveling wave tube.
従来の技術
現在、様々な進行波管が、通信、放送などの分野で使用
されている。その進行波管は、電子ビームを射出する電
子銃と、その電子銃からの電子ビームを捕捉するコレク
クと、電子銃とコレクタとの間に配置された遅波回路と
を基本的に具備しており、入力部から遅波回路に印加さ
れた入力信号波が遅波回路に沿って進とき、電子ビーム
を速度変調し、遅波回路の下流側の出力部において増幅
された電磁波を取り出すようになされている。BACKGROUND OF THE INVENTION A variety of traveling wave tubes are currently used in communications, broadcasting, and other fields. The traveling wave tube basically includes an electron gun that emits an electron beam, a collector that captures the electron beam from the electron gun, and a slow wave circuit placed between the electron gun and the collector. When the input signal wave applied to the slow-wave circuit from the input section travels along the slow-wave circuit, the electron beam is velocity-modulated, and the amplified electromagnetic wave is extracted at the output section on the downstream side of the slow-wave circuit. being done.
このような進行波管は、近年、衛星通信地球局用中継機
の終段の電力増幅管としての需要が増えてきているが、
かかる用途に於いては、高出力化が不可欠である。高出
力化に伴って、その動作電圧及び電流は当然高くかつ大
きくなるが、電極間の絶縁確保、熱放散手段の適正化及
び所要ビーム電力の確保，等の必要性から、当然その外
形、寸法は増大する。しかし一方、使用者の要求は、車
載、航空機搭載等の移動用を含めて、小形軽量で、取扱
いが簡便かつ低消費電力化指向にある。したがって、進
行波管の外形寸法及び消費電力を増大することなく、高
出力化をはかること、すなわち高効率化をはかる為の何
かの手段をこうしることが必須となってきた。In recent years, there has been an increase in demand for such traveling wave tubes as power amplifier tubes at the final stage of repeaters for satellite communication earth stations.
In such applications, high output is essential. As the output increases, the operating voltage and current will naturally become higher and larger, but due to the necessity of ensuring insulation between electrodes, optimizing heat dissipation means, and securing the required beam power, it is natural that the external shape and dimensions will increase. increases. On the other hand, however, users' demands are for smaller, lighter, easier handling, and lower power consumption, including for mobile use such as on-vehicle or aircraft-mounted devices. Therefore, it has become essential to increase the output of the traveling wave tube without increasing its external dimensions and power consumption, that is, to develop some means for increasing its efficiency.
かかる状況において、進行波管の遅波回路には、高い融
点を有するタングステンやモリブデン等の線又はテープ
を螺旋状に成形した螺旋形遅波回路が、小型軽量で取扱
いが簡便である点に着目されて、使用されている。Under these circumstances, we focused on the fact that a spiral slow-wave circuit, which is formed by spirally forming wire or tape made of tungsten or molybdenum, etc., which have a high melting point, is small, lightweight, and easy to handle, as a slow-wave circuit for a traveling-wave tube. has been and is being used.
また、進行波管の高効率化を図るために、この螺旋形遅
波回路には種々の改良がなされている。Furthermore, various improvements have been made to this spiral slow wave circuit in order to improve the efficiency of the traveling wave tube.
例えば、螺旋の出力端に電子ビームの速度低下に対応し
た速度テーパピッチを付加したものや、出力端螺旋部の
高周波損失を低減するため螺旋に金メッキを施したもの
等がある。For example, there are those in which a speed taper pitch corresponding to the speed reduction of the electron beam is added to the output end of the spiral, and those in which the spiral is plated with gold to reduce high frequency loss at the output end spiral portion.
しかし、更に、高出力化を図るには、螺旋の空間高調波
の電子成分を押さえて基本波の結合インピーダンスを高
めると同時に、後進波成分を低下させるような螺旋構造
とすることが要求される。However, in order to further increase the output, it is necessary to create a helical structure that suppresses the electronic component of the spatial harmonics of the spiral to increase the coupling impedance of the fundamental wave, while at the same time reducing the backward wave component. .
その一つの方法として、電磁波を伝搬する第１の螺旋と
、第１の螺旋と逆向きに巻かれ第１の螺旋と同一のピッ
チで交差する第２の螺旋とを結合合体した形のいわゆる
交差螺旋形遅波回路が公知である。One method is to combine a first spiral that propagates electromagnetic waves with a second spiral that is wound in the opposite direction to the first spiral and intersects with the first spiral at the same pitch. Spiral slow wave circuits are known.
発明が解決しようとする問題点
第２図に、従来より公知であった交差螺旋形遅波回路を
有する進行波管の遅波回路構体１を図解する。交差螺旋
２は、電磁波を伝搬する第１の螺旋２″と、第１の螺旋
と逆向きに巻かれ第１の螺旋２′と同一のピッチで交差
する第２の螺旋２”のふたつの螺旋を合成して形成され
、全体としては円筒形でかご形をなしている。更に、交
差螺旋２は複数本の誘電体支柱３を介して円筒状金属外
囲器４内に収納され固定されている。Problems to be Solved by the Invention FIG. 2 illustrates a traveling wave tube slow wave circuit structure 1 having a conventionally known crossed spiral slow wave circuit. The intersecting spiral 2 consists of two spirals: a first spiral 2'' that propagates electromagnetic waves, and a second spiral 2'' that is wound in the opposite direction to the first spiral and intersects with the first spiral 2' at the same pitch. It is formed by combining the two, and the overall shape is cylindrical and cage-shaped. Further, the crossed spiral 2 is housed and fixed in a cylindrical metal envelope 4 via a plurality of dielectric columns 3.
この交差螺旋形遅波回路は、ふたつの螺旋の伝搬モード
が重畳して存在している。このため螺旋系全体としての
軸方向の基本波成分電界が強いことから螺旋の結合イン
ピーダンスも高く、高出力が得られることも知られてい
る。In this crossed spiral slow wave circuit, two spiral propagation modes exist in a superimposed manner. For this reason, it is also known that because the fundamental wave component electric field in the axial direction of the entire helical system is strong, the coupling impedance of the helix is also high, and high output can be obtained.
しかしながら、かかる交差螺旋形遅波回路は、以上のよ
うな高効率の特性を有することが公知でありながらも、
その複雑な形状のために成形加工は、歩留りが悪く、高
い精度と長時間の加工期間を必要とされることから、製
造コスト高となり、結局のところ実用に供されることは
不可能であった。However, although such a crossed helical slow wave circuit is known to have the above-mentioned high efficiency characteristics,
Due to its complex shape, molding has a low yield and requires high precision and a long processing time, resulting in high manufacturing costs, and in the end, it is impossible to put it into practical use. Ta.
そこで、本発明は、前述の交差螺旋形遅波回路を安価に
且つ容易に製造できる交差螺旋形遅波回路の製造方法を
提供せんとするものである。SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a method for manufacturing a crossed helical slow wave circuit, which allows the aforementioned crossed helical slow wave circuit to be manufactured easily and inexpensively.
問題点を解決するための手段
すなわち、本発明による進行波管の交差螺旋形遅波回路
の製造方法は、巻芯上に第１及び第２の螺旋を互いに平
行に所定のピッチで巻き、前記第１及び第２の螺旋と交
差するように第３の螺旋を巻き重ね、後に前記第２の螺
旋を除去することを特徴とする。A means for solving the problem, that is, a method for manufacturing a crossed spiral slow wave circuit of a traveling wave tube according to the present invention, is to wind first and second spirals on a winding core in parallel with each other at a predetermined pitch, It is characterized in that a third spiral is wound overlappingly so as to intersect with the first and second spirals, and the second spiral is later removed.
詐月
上記、本発明の方法によれば、第２の螺旋が第１の螺旋
と平行に例えば巻芯に巻かれていることで、前記第１の
珠旋のピッチを均一にできると同時に、前記第１及び第
２の螺旋の上に巻き重ねられる第３の螺旋の断面を真円
に近い状態にすることもできる。According to the method of the present invention as described above, the second spiral is wound, for example, around the core in parallel with the first spiral, so that the pitch of the first spiral can be made uniform, and at the same time, The cross section of the third spiral wound on top of the first and second spirals can also be made to be close to a perfect circle.
従って、本発明によれば、進行波管の高品質の交差螺旋
形遅波回路が、容易にかつ安価に製造できる。Therefore, according to the present invention, a high quality crossed helical slow wave circuit of a traveling wave tube can be manufactured easily and inexpensively.
実施例 次に本発明の実施例を添付図面を参照して説明する。Example Next, embodiments of the present invention will be described with reference to the accompanying drawings.
第１図（ａ）は本発明による進行波管の交差螺旋形遅波
回路構体の立体図であり、第１図（ｂ）は第１図（ａ）
の断面図であり、第１図（Ｃ）は第１図（ａ）における
交差螺旋遅波回路の交差螺旋の成形方法を図解する立体
図である。FIG. 1(a) is a three-dimensional diagram of a crossed spiral slow-wave circuit structure of a traveling wave tube according to the present invention, and FIG.
FIG. 1(C) is a three-dimensional view illustrating a method of forming the crossed spirals of the crossed spiral slow wave circuit in FIG. 1(a).
第１図（ａ）にふいて、図示の進行波管の円筒形かつか
ご形の交差螺旋２は、該交差螺旋２の周囲に位置し該交
差螺旋２の中心軸と平行な複数本の円筒形誘電体支柱３
によって支持されて、円筒状金属外囲器４内に収納され
てあり、該円筒状金属外囲器４の弾性により締結固定さ
れている。Referring to FIG. 1(a), the cylindrical and cage-shaped intersecting spiral 2 of the illustrated traveling wave tube consists of a plurality of cylinders located around the intersecting helix 2 and parallel to the central axis of the intersecting helix 2. shaped dielectric pillar 3
It is supported by and housed in a cylindrical metal envelope 4, and is fastened and fixed by the elasticity of the cylindrical metal envelope 4.
その円筒状金属外囲器４の一方の端には、電子ビームを
射出する電子銃部（図示せず）が結合され、また該円筒
状金属外囲器４の他方の端には、電子ビームを捕捉して
その運動エネルギーを熱エネルギーに変換して放散させ
る機能を有するコレクタ部（図示せず）が該外囲器４と
同軸関係に連結されている。An electron gun unit (not shown) for emitting an electron beam is coupled to one end of the cylindrical metal envelope 4, and an electron gun unit (not shown) that emits an electron beam is connected to the other end of the cylindrical metal envelope 4. A collector section (not shown) is coaxially connected to the envelope 4 and has a function of capturing the kinetic energy of the heat energy, converting the kinetic energy into thermal energy, and dissipating it.
交差螺旋２は、電磁波を伝搬する螺旋５と、該螺旋５と
互いに交差するように螺旋５と同じピッチで螺旋５の上
に巻き重ねられた螺旋７とにより構成されている。そし
て、螺旋５と螺旋７交差する交点の必要個所が、例えば
、溶接等により接合されている。The crossed spiral 2 is composed of a spiral 5 that propagates electromagnetic waves, and a spiral 7 that is wound on top of the spiral 5 at the same pitch as the spiral 5 so as to intersect with the spiral 5. Necessary points of intersection between the spirals 5 and 7 are joined by, for example, welding.
かかる交差螺旋２は本発明により次のように成形される
。第１図（Ｃ）に示すように、まず、成形する交差螺旋
の内径に等しい外径を有し、かつ成形する交差螺旋の軸
方向の全長より十分長い巻芯８を用意する。Such a crossed spiral 2 is formed according to the present invention as follows. As shown in FIG. 1(C), first, a winding core 8 is prepared which has an outer diameter equal to the inner diameter of the intersecting spiral to be formed and is sufficiently longer than the entire length in the axial direction of the intersecting spiral to be formed.
該巻芯８上に第１及び第２の螺旋５、６を互いに平行か
つ密に所定のピッチで巻く。次に、前記螺旋５及び螺旋
６の上に、該螺旋５及び螺旋６と交差するように第３の
螺旋７を前記第１の螺旋５と同じピッチで逆向きに巻き
重ねる。そして、前記第１、第２及び第３の螺旋５、６
、７の両端部は巻芯８に適当な手段を用いて固定する。The first and second spirals 5 and 6 are wound on the core 8 parallel to each other and densely at a predetermined pitch. Next, a third spiral 7 is wound over the spirals 5 and 6 in the opposite direction at the same pitch as the first spiral 5 so as to intersect with the spirals 5 and 6. and the first, second and third spirals 5, 6
, 7 are fixed to the winding core 8 using appropriate means.
かかる状態の巻芯８を含む螺旋５、６、７の全体を、例
えば水素炉等で加熱し焼鈍を行い、各螺旋が巻芯８に巻
き付けられた際の内部応力を除去する。The entire spirals 5, 6, and 7 including the winding core 8 in such a state are heated and annealed, for example, in a hydrogen furnace or the like, to remove the internal stress caused when each spiral is wound around the winding core 8.
更にその後、その全体を所要の長さに切断し、巻芯８と
第２の螺旋６とを取り除くことにより交差螺旋２が成形
できる。Furthermore, the crossed spiral 2 can be formed by cutting the whole to a required length and removing the winding core 8 and the second spiral 6.
しかし、この状態では、螺旋５と螺旋７が、それぞれ半
ターンごとに交差する点で、互いの螺旋は単に、接触し
ているにすぎない。従って、機械的に形がくずれやすい
。このため交差螺旋全体を機械的に安定するように、２
本の螺旋５、７が半ターンごとに交差する交点の必要な
個所を例えば溶接等により接合する。However, in this state, the spirals 5 and 7 are merely in contact with each other at the points where they intersect every half turn. Therefore, it is easy to lose its shape mechanically. Therefore, in order to mechanically stabilize the entire crossed spiral, 2
Necessary points of intersection where the spirals 5 and 7 of the book intersect every half turn are joined by, for example, welding.
上記、進行波管の交差螺旋形遅波回路構体の製造方法に
おいて、第２の螺旋６の寸法は、第１の螺旋５のピッチ
及び線径（テープの場合は幅と厚さ）により決定される
。即ち、．第１の螺旋５が線材である時、第１の螺旋の
線径をｄ１ピッチをｐとし、第２の螺旋６の幅をＡ、厚
さをＢとすれば、Ａ≦ｐ−ａ，Ｂ＝ｄの関係を有してい
なければならない。ただしΔ〉Ｂの場合、第２の螺旋６
は、線径がＢと同じ寸法の線材を用いてもよい。In the above-mentioned method for manufacturing a traveling wave tube crossed spiral slow wave circuit structure, the dimensions of the second spiral 6 are determined by the pitch and wire diameter (width and thickness in the case of tape) of the first spiral 5. Ru. That is,. When the first spiral 5 is a wire rod, the wire diameter of the first spiral is d1, the pitch is p, the width of the second spiral 6 is A, and the thickness is B, then A≦p-a, B =d. However, in the case of Δ〉B, the second spiral 6
A wire having the same wire diameter as B may be used.
即ち、本発明による製造方法によれば、第１の螺旋５は
、第２の螺旋６を有していることでピッチが均一になり
、また、前記第１及び第２の螺旋５、６の上に重ね巻き
される第３の螺旋７の断面をほぼ真円に成形することも
できる。That is, according to the manufacturing method of the present invention, the first spiral 5 has a uniform pitch because it has the second spiral 6, and the pitch of the first spiral 5 and the second spiral 6 becomes uniform. The cross section of the third spiral 7 wound over the top can also be formed into a substantially perfect circle.
ここで、もし第２の螺旋６をなくして第１の螺旋５の上
に直接第３の螺旋７を巻き重ねると、２本の螺旋が交差
するすべての交点において部分的に螺旋１本分の厚さだ
け、外周方向にふくらむ。Here, if the second spiral 6 is eliminated and the third spiral 7 is wound directly on top of the first spiral 5, at all the intersections where the two spirals intersect, a portion of the length of one spiral will be partially overlapped. It bulges in the outer circumferential direction by the thickness.
つまり、前記２本の螺旋が交差する交点から、交差螺旋
２の中心軸に対して±９０度ずれたそれぞれの位置のみ
で、螺旋７は巻芯８の外周に直接接することになり、螺
旋７の断面は、楕円に近い形状になる。それなれば、該
交差螺旋遅波回路の電気的特性そのものや円筒状金属外
囲器４内部に収納固定する際などにさまざまな不具合を
生じる可能性がある。In other words, the spiral 7 comes into direct contact with the outer periphery of the winding core 8 only at each position offset by ±90 degrees with respect to the central axis of the crossed spiral 2 from the intersection point where the two spirals intersect, and the spiral 7 The cross section of is almost elliptical. If this is the case, various problems may occur in the electrical characteristics of the crossed helical slow wave circuit itself or in the case of storing and fixing it inside the cylindrical metal envelope 4.
従って、上記のごとく本実施例によれば、従来大出力を
ｆＧられることか知られていながら、その成形が難しく
製造コスト高となる理由で実用に供されなかった交差螺
旋形遅波回路が容易にかつ安価に実現することが可能で
あると共に、内外の２本の螺旋の断面がほぼ真円に成形
できる。このため交差螺旋形遅波回路が電気的に安定し
た特性を有することは言うまでもなく螺旋形遅波回路２
を円筒状金属外囲器４．内に収納固定する誘電体支持柱
３も安定かつ容易に配設することができる。よって、誘
電体支柱の折損や螺旋のピッチの乱れ等の問題も少なく
機械点にバランスのとれた交差螺旋遅波回路構体を実現
できる。Therefore, as described above, according to this embodiment, the crossed helical slow wave circuit, which is conventionally known to be able to generate a large output fG, but has not been put to practical use because it is difficult to mold and the manufacturing cost is high, can be easily realized. It can be realized easily and inexpensively, and the cross sections of the two inner and outer spirals can be formed into a substantially perfect circle. Therefore, it goes without saying that the crossed helical slow wave circuit has electrically stable characteristics.
4. Cylindrical metal envelope. The dielectric support column 3 to be housed and fixed inside can also be stably and easily arranged. Therefore, problems such as breakage of the dielectric support pillars and disturbance of the pitch of the spiral can be minimized, and a crossed spiral slow wave circuit structure with a well-balanced mechanical point can be realized.
発明の効果
以上の説明から明らかなように、本発明によるならば、
小形軽量、高信頼、高効率な進行波管を実現できる高品
質の交差螺旋形遅波旦路を安価に且つ容易に製造するこ
とができる。Effects of the invention As is clear from the above explanation, according to the present invention,
A high-quality crossed helical slow wave tube that can realize a small, lightweight, highly reliable, and highly efficient traveling wave tube can be manufactured inexpensively and easily.
第１図（ａ）は、本発明による進行波管の交差螺旋形遅
波回路構体の立体図であり、
第１図ら）は、第１図（ａ）の断面図であり、第１図（
Ｃ）は、第１図（ａ）における交差螺旋形遅波回路の交
差螺旋の成形方法を図解する立体図であり、
第２図は、従来より公知である交差螺旋形遅波回路を有
する進行波管の遅波回路構体を図解する立体図である。
（主な参照番号）
１・・交差螺旋形遅波回路構体、
２，２”，２”，５，６．７・・螺旋
３・・誘電体支持柱、
４・・円筒状金属外囲器、 ８・・巻芯特許出願人
日本電気株式会社
（ａ） （ｂ）１・・・交岩實
助足しガ波回栄汁酊岑 ２，５．６，７・・螺旋３・
・誘電体支持狂 ４・・円筒状金属外囲器８・・壱芯FIG. 1(a) is a three-dimensional view of a crossed spiral slow wave circuit structure of a traveling wave tube according to the present invention, FIG. 1(a) is a sectional view of FIG. 1(a), and FIG.
C) is a three-dimensional view illustrating the method of forming the crossed spirals of the crossed spiral slow wave circuit in FIG. 1(a); FIG. FIG. 3 is a three-dimensional diagram illustrating a slow wave circuit structure of a wave tube. (Main reference numbers) 1...Cross spiral slow wave circuit structure, 2, 2", 2", 5, 6.7...Spiral 3...Dielectric support column, 4...Cylindrical metal envelope , 8... Core patent applicant
NEC Corporation (a) (b) 1...Spiral 3.
・Dielectric support 4. Cylindrical metal envelope 8. 1 core
Claims (1)
チで巻き、前記第１及び第２の螺旋と交差するように第
３の螺旋を巻き重ね、後に前記第２の螺旋を除去するこ
とを特徴とする進行波管の交差螺旋形遅波回路の製造方
法。The first and second spirals are wound on a winding core in parallel with each other at a predetermined pitch, a third spiral is wound so as to intersect with the first and second spirals, and the second spiral is later removed. A method for manufacturing a traveling wave tube crossed spiral slow wave circuit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14438586A JPS63940A (en) | 1986-06-19 | 1986-06-19 | Manufacture of cross spiral slow-wave structure of traveling wave tube |
| US07/003,197 US4855644A (en) | 1986-01-14 | 1987-01-14 | Crossed double helix slow-wave circuit for use in linear-beam microwave tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14438586A JPS63940A (en) | 1986-06-19 | 1986-06-19 | Manufacture of cross spiral slow-wave structure of traveling wave tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63940A true JPS63940A (en) | 1988-01-05 |
Family
ID=15360904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14438586A Pending JPS63940A (en) | 1986-01-14 | 1986-06-19 | Manufacture of cross spiral slow-wave structure of traveling wave tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63940A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999009609A1 (en) * | 1997-08-20 | 1999-02-25 | Voorhies Kurt L Van | Method of manufacturing a contrawound toroidal helical antenna |
| US6320550B1 (en) | 1998-04-06 | 2001-11-20 | Vortekx, Inc. | Contrawound helical antenna |
| CN103208407A (en) * | 2013-03-19 | 2013-07-17 | 电子科技大学 | Slow-wave device adopting circular arc body V-shaped waving micro-strip curve |
-
1986
- 1986-06-19 JP JP14438586A patent/JPS63940A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999009609A1 (en) * | 1997-08-20 | 1999-02-25 | Voorhies Kurt L Van | Method of manufacturing a contrawound toroidal helical antenna |
| US6320550B1 (en) | 1998-04-06 | 2001-11-20 | Vortekx, Inc. | Contrawound helical antenna |
| CN103208407A (en) * | 2013-03-19 | 2013-07-17 | 电子科技大学 | Slow-wave device adopting circular arc body V-shaped waving micro-strip curve |
| CN103208407B (en) * | 2013-03-19 | 2015-07-15 | 电子科技大学 | Slow-wave device adopting circular arc body V-shaped waving micro-strip curve |
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