JP2013232740A - Method for manufacturing waveguide - Google Patents

Method for manufacturing waveguide Download PDF

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JP2013232740A
JP2013232740A JP2012102932A JP2012102932A JP2013232740A JP 2013232740 A JP2013232740 A JP 2013232740A JP 2012102932 A JP2012102932 A JP 2012102932A JP 2012102932 A JP2012102932 A JP 2012102932A JP 2013232740 A JP2013232740 A JP 2013232740A
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manufacturing
conductive layer
transmission path
waveguide
peripheral surface
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JP5939877B2 (en
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Akira Mita
晃 三田
Masaaki Okada
正明 岡田
Takuo Matsumoto
琢夫 松本
Takashi Gohara
隆志 郷原
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Yazaki Corp
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Yazaki Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a method for manufacturing a waveguide which implements inexpensive fabrication in a simple process.SOLUTION: The method for manufacturing a waveguide includes: a transmission path member fabrication step of fabricating a transmission path member 2A from an electromagnetically transparent member; a conductive layer fabrication step of fabricating a conductive layer 3 of a conductive material on an outer circumferential surface of the transmission path member 2A; and a protective layer fabrication step of fabricating a protective layer 4 of a protective material on an outer circumferential surface of the conductive layer 3. An inner circumferential surface of the conductive layer serving as an electromagnetically reflective surface is a smooth surface following the outer circumferential surface of the transmission path member to dispense with a specular finish.

Description

本発明は、導波管の製造方法に関する。   The present invention relates to a method for manufacturing a waveguide.

導波管の製造方法は、従来より種々のものが提案されている（特許文献１等参照）。導波管の製造方法の一従来例が図３に示されている。この導波管１０の製造方法は、次のようにして作製する。先ず、図３（ａ）に示すように、所定形状の金属パイプ１１を作製する。次に、図３（ｂ）に示すように、金属パイプ１１の内周面に金属メッキを施して導電層１２を作製する。最後に、導電層１２に鏡面加工を行い、これで完了する。   Various methods for manufacturing a waveguide have been proposed (see Patent Document 1). A conventional example of a method for manufacturing a waveguide is shown in FIG. The manufacturing method of this waveguide 10 is produced as follows. First, as shown in FIG. 3A, a metal pipe 11 having a predetermined shape is produced. Next, as shown in FIG. 3B, the inner peripheral surface of the metal pipe 11 is subjected to metal plating to produce the conductive layer 12. Finally, the conductive layer 12 is mirror-finished to complete the process.

特開２００８−４２３１８号公報JP 2008-42318 A 特開昭６１−１４１２０４号公報JP 61-141204 A

しかしながら、前記従来の導波管１０の製造方法では、上記したように、金属パイプ１１の内周面である導電層１２に、電磁波の乱反射を減らすための鏡面加工を行う必要がある。金属パイプ１１の内周面への鏡面加工は、工程が複雑でコスト高になるという問題があった。   However, in the conventional method for manufacturing the waveguide 10, as described above, the conductive layer 12 that is the inner peripheral surface of the metal pipe 11 needs to be mirror-finished to reduce the irregular reflection of electromagnetic waves. The mirror processing on the inner peripheral surface of the metal pipe 11 has a problem that the process is complicated and the cost is high.

そこで、本発明は、前記した課題を解決すべくなされたものであり、簡単な工程で、安価に作製できる導波管の製造方法を提供することを目的とする。   Accordingly, the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a method for manufacturing a waveguide that can be manufactured at low cost with a simple process.

本発明は、電磁波が通過する部材より伝送路部材を作製する伝送路部材作製工程と、前記伝送路部材の外周面に導電性材による導電層を作製する導電層作製工程と、前記導電層の外周面に保護材による保護層を作製する保護層作製工程とを備えたことを特徴とする導波管の製造方法である。   The present invention includes a transmission path member manufacturing step of manufacturing a transmission path member from a member through which electromagnetic waves pass, a conductive layer manufacturing step of manufacturing a conductive layer made of a conductive material on the outer peripheral surface of the transmission path member, A method of manufacturing a waveguide, comprising: a protective layer manufacturing step of manufacturing a protective layer made of a protective material on an outer peripheral surface.

伝送路作製工程では、前記伝送路部材として中空構造のものを作製することが好ましい。   In the transmission path manufacturing step, it is preferable to manufacture a hollow structure as the transmission path member.

伝送路作製工程では、前記伝送路部材として中実構造のものを作製することが好ましい。   In the transmission path manufacturing step, it is preferable to manufacture a solid structure as the transmission path member.

本発明によれば、電磁波の反射面となる導電層の内周面は、伝送路部材の外周面に倣って平滑な面となるため、鏡面加工をする必要がない。従って、導波管を簡単な工程で、安価に作製できる。   According to the present invention, the inner peripheral surface of the conductive layer serving as the electromagnetic wave reflecting surface becomes a smooth surface following the outer peripheral surface of the transmission path member, and therefore, it is not necessary to perform mirror finishing. Therefore, the waveguide can be manufactured at a low cost by a simple process.

本発明の第１実施形態を示し、（ａ）は伝送路部材の斜視図、（ｂ）は伝送路部材の外周面を導電層でコーティングした状態を示す斜視図、（ｃ）は導電層の外周面を保護層でコーティングした状態した状態を示す斜視図、（ｄ）は導波管の断面図である。1 shows a first embodiment of the present invention, (a) is a perspective view of a transmission line member, (b) is a perspective view showing a state where an outer peripheral surface of the transmission line member is coated with a conductive layer, and (c) is a view of the conductive layer. The perspective view which shows the state which coat | covered the outer peripheral surface with the protective layer, (d) is sectional drawing of a waveguide. 本発明の第２実施形態を示し、（ａ）は伝送路部材の斜視図、（ｂ）は伝送路部材の外周面を導電層でコーティングした斜視図、（ｃ）は導電層の外周面を保護層でコーティングした状態を示す斜視図、（ｄ）は導波管の断面図である。2A and 2B show a second embodiment of the present invention, in which FIG. 4A is a perspective view of a transmission line member, FIG. 4B is a perspective view of an outer peripheral surface of the transmission line member coated with a conductive layer, and FIG. The perspective view which shows the state coated with the protective layer, (d) is sectional drawing of a waveguide. 従来例を示し、（ａ）は金属パイプの斜視図、（ｂ）は金属パイプの内周面に金属メッキを施した状態を示す斜視図である。A prior art example is shown, (a) is a perspective view of a metal pipe, (b) is a perspective view which shows the state which gave metal plating to the internal peripheral surface of a metal pipe.

以下、本発明の実施形態を図面に基づいて説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１は本発明の第１実施形態を示す。導波管１Ａは、電磁波を通過する部材より形成された伝送路部材２Ａと、この伝送路部材２Ａの外周面に配置された導電層３と、この導電層３の外周面に配置された保護層４とから、多層構造に形成されている（図１（ｃ）、（ｄ）参照）。伝送路部材２Ａは、この実施形態では、合成樹脂材にて形成されているが、紙類等によって形成しても良い。伝送路部材２Ａは、断面円筒形状であり、中空構造である。保護層４は、伝送路部材２Ａを保護する保護材（例えば、合成樹脂材、紙類、金属類）より形成されている。電磁波は、導電層３の内周面で反射しつつ、導電層３の内周面で囲まれる内部空間（伝送路部材２Ａ及びその内周面の空間）を伝送する。   FIG. 1 shows a first embodiment of the present invention. The waveguide 1A includes a transmission path member 2A formed of a member that passes electromagnetic waves, a conductive layer 3 disposed on the outer peripheral surface of the transmission path member 2A, and a protection disposed on the outer peripheral surface of the conductive layer 3. A multilayer structure is formed from the layer 4 (see FIGS. 1C and 1D). In this embodiment, the transmission path member 2A is formed of a synthetic resin material, but may be formed of paper or the like. The transmission line member 2A has a cylindrical cross section and a hollow structure. The protective layer 4 is formed of a protective material (for example, a synthetic resin material, paper, or metal) that protects the transmission line member 2A. The electromagnetic wave is reflected on the inner peripheral surface of the conductive layer 3 and is transmitted through the internal space (the transmission path member 2A and the space on the inner peripheral surface) surrounded by the inner peripheral surface of the conductive layer 3.

次に、導波管１Ａの製造方法を説明する。先ず、図１（ａ）に示すように、電磁波が通過する部材より伝送路部材２Ａを成型によって作製する（伝送路部材作製工程）。伝送路部材２Ａの外周面は、成型の面に倣って平滑な面である。   Next, a method for manufacturing the waveguide 1A will be described. First, as shown to Fig.1 (a), 2 A of transmission line members are produced by shaping | molding from the member through which electromagnetic waves pass (transmission line member preparation process). The outer peripheral surface of the transmission line member 2A is a smooth surface following the molding surface.

次に、伝送路部材２Ａを例えばメッキ層に漬け、その外周面の全域に導電性金属（例えば銅、アルミニューム）の金属メッキを行い、コーティングする。これにより、伝送路部材２Ａの外周面に導電層３を作製する（導電層作製工程）。   Next, the transmission line member 2A is immersed in, for example, a plating layer, and the entire outer peripheral surface is plated with a conductive metal (eg, copper, aluminum) and coated. Thereby, the conductive layer 3 is produced on the outer peripheral surface of the transmission line member 2A (conductive layer production process).

次に、導電層３の外周面に例えば保護性の保護材をコーティングし、保護層４を作製する（保護層作製工程）。これで、完了する。   Next, for example, a protective protective material is coated on the outer peripheral surface of the conductive layer 3 to prepare the protective layer 4 (protective layer manufacturing step). This completes it.

以上説明した導波管１Ａの製造方法では、電磁波の反射面となる導電層３の内周面は、伝送路部材２Ａの外周面に倣って平滑な面となるため、鏡面加工する必要がない。従って、導波管１Ａを簡単な工程で、安価に作製できる。   In the above-described method for manufacturing the waveguide 1A, the inner peripheral surface of the conductive layer 3 serving as an electromagnetic wave reflecting surface is a smooth surface following the outer peripheral surface of the transmission path member 2A, and thus there is no need for mirror finishing. . Therefore, the waveguide 1A can be manufactured at low cost by a simple process.

伝送路部材２Ａが中空構造であるので、導波管１Ａの材料費の低減化、軽量化になる。   Since the transmission line member 2A has a hollow structure, the material cost of the waveguide 1A is reduced and the weight is reduced.

（第２実施形態）
図２は本発明の第２実施形態を示す。この第２実施形態の導波管１Ｂは、前記第１実施形態のものと比較して伝送路部材２Ｂの形態のみ相違する。つまり、伝送路部材２Ｂは、断面円形であり、中実構造である。 (Second Embodiment)
FIG. 2 shows a second embodiment of the present invention. The waveguide 1B according to the second embodiment is different from the first embodiment only in the form of the transmission line member 2B. That is, the transmission line member 2B has a circular cross section and a solid structure.

他の構造及び導波管の製造方法は、前記第１実施形態と同様であるため、図面の同一構成箇所には同一符号を付して説明を省略する。   Since the other structure and the method for manufacturing the waveguide are the same as those in the first embodiment, the same components in the drawings are denoted by the same reference numerals and description thereof is omitted.

この第２実施形態でも、前記第１実施形態と同様に、導波管１Ｂを簡単な工程で、安価に作製できる。   In the second embodiment, similarly to the first embodiment, the waveguide 1B can be manufactured at a low cost by a simple process.

伝送路部材２Ｂが中実構造であるので、前記第１実施形態のものと比較して、導波管１Ｂが潰れ難く、安定した通信状態を確保できる。   Since the transmission line member 2B has a solid structure, the waveguide 1B is less likely to be crushed than in the first embodiment, and a stable communication state can be ensured.

（その他）
前記各導波管１Ａ，１Ｂは、断面円筒状、断面円形状であるが、断面方形筒状、断面方形状であっても良いことはもちろんである。 (Other)
Each of the waveguides 1A and 1B has a cylindrical cross section and a circular cross section, but it goes without saying that the waveguides may have a rectangular cross section and a square cross section.

１Ａ，１Ｂ 導波管
２Ａ，２Ｂ 伝送路部材
３ 導電層
４ 保護層 1A, 1B Waveguide 2A, 2B Transmission line member 3 Conductive layer 4 Protective layer

Claims (3)

電磁波が通過する部材より伝送路部材を作製する伝送路部材作製工程と、前記伝送路部材の外周面に導電性材による導電層を作製する導電層作製工程と、前記導電層の外周面に保護材による保護層を作製する保護層作製工程とを備えたことを特徴とする導波管の製造方法。   A transmission line member production process for producing a transmission line member from a member through which electromagnetic waves pass, a conductive layer production process for producing a conductive layer of a conductive material on the outer peripheral surface of the transmission line member, and a protection on the outer peripheral surface of the conductive layer A method for manufacturing a waveguide, comprising: a protective layer manufacturing step of manufacturing a protective layer made of a material. 請求項１記載の導波管の製造方法であって、
伝送路作製工程では、前記伝送路部材として中空構造のものを作製することを特徴とする導波管の製造方法。 A method of manufacturing a waveguide according to claim 1,
In the transmission path manufacturing step, a hollow structure is manufactured as the transmission path member. 請求項１記載の導波管の製造方法であって、
伝送路作製工程では、前記伝送路部材として中実構造のものを作製することを特徴とする導波管の製造方法。 A method of manufacturing a waveguide according to claim 1,
In the transmission path manufacturing step, a solid structure is manufactured as the transmission path member.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016195295A (en) * 2015-03-31 2016-11-17 ダイキン工業株式会社 Dielectric waveguide channel

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CN105769232B (en) 2016-02-22 2018-01-12 上海联影医疗科技有限公司 The X-ray tube filament pre-heating method of CT equipment and pre- heater circuit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS535787A (en) * 1976-07-07 1978-01-19 Sumitomo Electric Ind Ltd F lexible waveguide & its manufacturing
JPS59110203A (en) * 1982-12-15 1984-06-26 Mitsubishi Electric Corp Flexible waveguide
JPS62178601U (en) * 1986-04-30 1987-11-13

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS535787A (en) * 1976-07-07 1978-01-19 Sumitomo Electric Ind Ltd F lexible waveguide & its manufacturing
JPS59110203A (en) * 1982-12-15 1984-06-26 Mitsubishi Electric Corp Flexible waveguide
JPS62178601U (en) * 1986-04-30 1987-11-13

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016195295A (en) * 2015-03-31 2016-11-17 ダイキン工業株式会社 Dielectric waveguide channel

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