JPH11186833A - Helical antenna - Google Patents

Helical antenna

Info

Publication number
JPH11186833A
JPH11186833A JP34791297A JP34791297A JPH11186833A JP H11186833 A JPH11186833 A JP H11186833A JP 34791297 A JP34791297 A JP 34791297A JP 34791297 A JP34791297 A JP 34791297A JP H11186833 A JPH11186833 A JP H11186833A
Authority
JP
Japan
Prior art keywords
antenna
helical
helical antenna
coil
sleeve
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.)
Withdrawn
Application number
JP34791297A
Other languages
Japanese (ja)
Inventor
Shinichi Otomo
信一 大友
Kazuo Minegishi
一夫 嶺岸
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tokin Corp
Original Assignee
Tokin Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tokin Corp filed Critical Tokin Corp
Priority to JP34791297A priority Critical patent/JPH11186833A/en
Publication of JPH11186833A publication Critical patent/JPH11186833A/en
Withdrawn legal-status Critical Current

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  • Details Of Aerials (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a low cost and highly reliable helical antenna that can be easily manufactured. SOLUTION: In a helical antenna where a spiral coil connects electrically to part of a sleeve 5, at least two conductor patterns 1a are formed on a flexible board 1, which is rounded to be a cylinder, wherein the end and the start parts of the adjacent conductor patterns 1a are connected electrically to form the spiral coil.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、通信機器に用いら
れるアンテナの一種であるヘリカルアンテナの構造に関
するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a helical antenna which is a kind of an antenna used for communication equipment.

【0002】[0002]

【従来の技術】従来この種のアンテナの構造の一例を図
3に示す。従来の構造は、アンテナ収納時に給電部と成
るスリーブ5をインサートする様に、ナイロン等の非導
電性材料にてスリーブ5のアンテナトップ側にヘリカル
コイルガイド11を成形し、これと同時に、スリーブ5
の内部を通り、アンテナトップ側と反対側にホイップア
ンテナ9を固定すると共に、このホイップアンテナ9を
スリーブ5に機械的に固定する為のインシュレータ7を
成形する。その後、ヘリカルコイルガイド11にヘリカ
ルアンテナとして機能するヘリカルコイル12を、図4
の様に、ヘリカルコイルガイド11の螺旋状の溝11a
にねじ込む。その際に、ヘリカルコイル12をスリーブ
5のスリーブヘリカル結合部6に接合させ電気的に導通
させる。その後、図3に示す様に、ヘリカルアンテナの
保護とデザイン上の商品価値向上をはかる為に、アンテ
ナトップ10を成形して(キャップ式の場合もある)、
ヘリカルアンテナを構成する様に成っている。
2. Description of the Related Art FIG. 3 shows an example of the structure of a conventional antenna of this type. In the conventional structure, the helical coil guide 11 is formed on the antenna top side of the sleeve 5 with a non-conductive material such as nylon so that the sleeve 5 serving as a power feeding portion is inserted when the antenna is housed.
, A whip antenna 9 is fixed on the side opposite to the antenna top side, and an insulator 7 for mechanically fixing the whip antenna 9 to the sleeve 5 is formed. Thereafter, the helical coil 12 functioning as a helical antenna is attached to the helical coil guide 11 in FIG.
, The spiral groove 11a of the helical coil guide 11
Screwed in. At that time, the helical coil 12 is joined to the sleeve helical coupling portion 6 of the sleeve 5 to make it electrically conductive. Then, as shown in FIG. 3, in order to protect the helical antenna and to improve the commercial value of the design, the antenna top 10 is molded (there may be a cap type).
It is configured to form a helical antenna.

【0003】この様に、従来タイプは、コイルスプリン
グ状のヘリカルコイル(線径はφ0.5mm程度)をヘ
リカルコイルガイドにねじ込む作業が必要であるが、ア
ンテナトップの成形、或いはアンテナキャップ取付けま
での工程内作業時に何らかの外力により、コイルの位置
ズレやコイルの変形、或いはアンテナトップ成形時の成
形樹脂圧力等で、同様にコイルの変形や位置ズレが生じ
る場合があり、このコイルの変形や位置ズレは、アンテ
ナ特性に有害な影響を及ぼす。これを回避するために
は、コイルが安易に動かない様、ヘリカルコイルとヘリ
カルガイドの寸法設定を行なう必要がある。
As described above, in the conventional type, it is necessary to screw a coil spring-shaped helical coil (having a wire diameter of about 0.5 mm) into a helical coil guide, but it is necessary to form an antenna top or mount an antenna cap. The coil may be displaced or displaced due to some external force during work in the process due to displacement of the coil or deformation of the coil, or molding resin pressure at the time of forming the antenna top. Has a detrimental effect on antenna characteristics. In order to avoid this, it is necessary to set the dimensions of the helical coil and the helical guide so that the coil does not move easily.

【0004】[0004]

【発明が解決しようとする課題】しかし、これが災い
し、ヘリカルコイルを取り付ける作業についてはかなり
の労力を強いられ、工数的にも相当なコストを必要とし
ていた。
However, this was a disaster, and the work of attaching the helical coil required a considerable amount of labor, and required considerable man-hours.

【0005】それ故に、本発明の課題は、製造が容易
で、安価であり、しかも、信頼性の高いヘリカルアンテ
ナを提供することにある。
Therefore, an object of the present invention is to provide a helical antenna which is easy to manufacture, inexpensive, and has high reliability.

【0006】[0006]

【課題を解決するための手段】本発明によれば、螺旋状
のコイルを、スリーブの一部に電気的に接続して成るヘ
リカルアンテナにおいて、フレキシブル基板に導体パタ
ーンを少なくとも2本以上形成し、該フレキシブル基板
を筒状に丸めると共に、隣接する前記導体パターン同士
をそれらの終端と始端の部分で電気的に接続して、前記
螺旋状のコイルを形成したことを特徴とするヘリカルア
ンテナが得られる。
According to the present invention, in a helical antenna formed by electrically connecting a spiral coil to a part of a sleeve, at least two conductor patterns are formed on a flexible substrate, A helical antenna is obtained in which the flexible substrate is rolled into a tubular shape, and the conductor patterns adjacent to each other are electrically connected to each other at the end and start ends thereof to form the spiral coil. .

【0007】[0007]

【作用】本発明は、ヘリカルアンテナをプリント化する
ことで、ヘリカルアンテナのピッチや実アンテナ長が、
作業者により変化することなく安定で、しかも簡単に取
り付けることができる為、安価な且つ信頼性の高いヘリ
カルアンテナの生産が可能となった。
According to the present invention, the pitch of the helical antenna and the actual antenna length can be reduced by printing the helical antenna.
Since it is stable and can be easily attached without being changed by an operator, it has become possible to produce an inexpensive and highly reliable helical antenna.

【0008】[0008]

【発明の実施の形態】本発明のヘリカルアンテナは、導
体パターンを配したフレキシブル基板を筒状に丸めるこ
とにより、この導体パターンでコイルを構成する様にし
たことを特徴とするものであり、以下、図面に基づいて
本発明の実施の形態について説明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The helical antenna according to the present invention is characterized in that a flexible substrate on which a conductor pattern is provided is formed into a coil by rolling the flexible substrate into a tube. An embodiment of the present invention will be described with reference to the drawings.

【0009】図1は本発明の一実施形態によるヘリカル
アンテナを示し、(a)はヘリカルアンテナの主要部の
斜視図、(b)は(a)に示すヘリカルアンテナの要部
を構成するフレキシブルプリント基板の展開図、(c)
は(b)に示すフレキシブルプリント基板を円筒状に丸
めた状態の斜視図、図2は図1に示すヘリカルアンテナ
の断面図である。
FIG. 1 shows a helical antenna according to an embodiment of the present invention. FIG. 1 (a) is a perspective view of a main part of the helical antenna, and FIG. 1 (b) is a flexible print constituting a main part of the helical antenna shown in FIG. Exploded view of the substrate, (c)
2 is a perspective view of a state in which the flexible printed circuit board shown in FIG. 1B is rounded into a cylindrical shape, and FIG. 2 is a sectional view of the helical antenna shown in FIG.

【0010】図1及び図2を参照して、フレキシブルプ
リント基板1には、その幅方向(図1(b)上、上下方
向)に対して傾斜した導体パターン(以下、「傾斜パタ
ーン」という)1aが、複数互いに平行に埋設されてい
る。また、フレキシブルプリント基板1の一端部には、
給電接点2が形成されている。この給電接点2は、フレ
キシブルプリント基板1の一面(フレキシブルプリント
基板1を円筒状に丸めた時に内側面となる面)で露出し
ている。また、フレキシブルプリント基板1の両側縁に
は、それぞれ結合接点3が等間隔に複数形成されてい
る。これらの結合接点3は、フレキシブルプリント基板
1の一面で露出している。これらの結合接点3に、各傾
斜パターン1aの始端と終端が、それぞれ接続されてい
る。
Referring to FIGS. 1 and 2, the flexible printed circuit board 1 has a conductor pattern (hereinafter, referred to as an "inclined pattern") inclined with respect to its width direction (vertical direction in FIG. 1B). 1a are buried in parallel with each other. Also, at one end of the flexible printed board 1,
A power supply contact 2 is formed. The power supply contact 2 is exposed on one surface of the flexible printed circuit board 1 (the surface that becomes the inner surface when the flexible printed circuit board 1 is rolled into a cylindrical shape). Further, a plurality of coupling contacts 3 are formed at both sides of the flexible printed board 1 at equal intervals. These coupling contacts 3 are exposed on one surface of the flexible printed circuit board 1. The start and end of each inclined pattern 1a are connected to these coupling contacts 3, respectively.

【0011】このフレキシブルプリント基板1を、図1
(c)に示す様に、円筒状に丸めて、結合接点3同士を
半田やスポット溶接等で電気的及び機械的に接続するこ
とで、隣接する傾斜パターン1a同士が、それらの終端
と始端の部分で電気的に接続され、ヘリカルコイルとな
る。更に、フレキシブルプリント基板1の給電接点2を
スリーブ5に、圧入や半田付け等により電気的に接続す
ることでヘリカルアンテナとして機能し、図1(a)に
示す様な形になる。これに、更にアンテナトップ10を
成形し、エレメント保護外観化粧用チューブ8を配する
ことで図2に示す完成体となる。
This flexible printed circuit board 1 is shown in FIG.
As shown in (c), by rounding into a cylindrical shape and electrically and mechanically connecting the coupling contacts 3 to each other by soldering, spot welding, or the like, the adjacent inclined patterns 1a are connected to each other at the end and start ends thereof. The parts are electrically connected to form a helical coil. Further, by electrically connecting the power supply contact 2 of the flexible printed circuit board 1 to the sleeve 5 by press-fitting, soldering, or the like, it functions as a helical antenna and has a shape as shown in FIG. Further, the antenna top 10 is further formed, and the element protection appearance cosmetic tube 8 is provided, thereby obtaining a completed body shown in FIG.

【0012】本実施形態は、分離型ヘリカルアンテナで
あるが、本発明はこれに限らず、一体型アンテナ(ヘリ
カルアンテナ、スリーブ、及びホイップアンテナの全て
が、互いに電気的に接続されているアンテナ)、又は固
定型アンテナ(ヘリカルアンテナのみがアンテナとして
機能するアンテナ)にも適用でき、図示実施形態と同様
の作用、効果を得られることは言うまでもない。
Although the present embodiment is directed to a separated helical antenna, the present invention is not limited to this, and an integrated antenna (an antenna in which all of a helical antenna, a sleeve, and a whip antenna are electrically connected to each other). Alternatively, the present invention can be applied to a fixed antenna (an antenna in which only a helical antenna functions as an antenna), and it is needless to say that the same operation and effect as those of the illustrated embodiment can be obtained.

【0013】[0013]

【発明の効果】以上、本発明によれば、アンテナの電気
的特性が安定しており、また、製造が容易で、コストが
安価であり、しかも、信頼性が高いヘリカルアンテナを
提供することが可能となった。
As described above, according to the present invention, it is possible to provide a helical antenna which has stable electrical characteristics, is easy to manufacture, is inexpensive, and has high reliability. It has become possible.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の一実施形態によるヘリカルアンテナを
示し、(a)はヘリカルアンテナの主要部の斜視図、
(b)は(a)に示すヘリカルアンテナの要部を構成す
るフレキシブルプリント基板の展開図、(c)は(b)
に示すフレキシブルプリント基板を円筒状に丸めた状態
の斜視図である。
FIG. 1 shows a helical antenna according to an embodiment of the present invention, (a) is a perspective view of a main part of the helical antenna,
(B) is an exploded view of a flexible printed circuit board constituting a main part of the helical antenna shown in (a), and (c) is (b)
FIG. 3 is a perspective view of the flexible printed circuit board shown in FIG.

【図2】図1に示すヘリカルアンテナの断面図である。FIG. 2 is a sectional view of the helical antenna shown in FIG.

【図3】従来の分離型ヘリカルアンテナの一例の断面図
である。
FIG. 3 is a sectional view of an example of a conventional separated helical antenna.

【図4】図3に示すヘリカルアンテナの製造方法を説明
するための要部の側面図である。
FIG. 4 is a side view of a main part for describing a method of manufacturing the helical antenna shown in FIG.

【符号の説明】[Explanation of symbols]

1 フレキシブル基板 1a 傾斜パターン 2 給電接点 3 結合接点 4 ヘリカルアンテナ 5 スリーブ 6 スリーブヘリカル結合部 7 インシュレータ 8 エレメント保護外観化粧用チューブ 9 ホイップアンテナ 10 アンテナトップ 11 ヘリカルコイルガイド 11a 溝 12 ヘリカルコイル DESCRIPTION OF SYMBOLS 1 Flexible board 1a Inclined pattern 2 Feeding contact 3 Coupling contact 4 Helical antenna 5 Sleeve 6 Sleeve helical coupling part 7 Insulator 8 Element protection appearance cosmetic tube 9 Whip antenna 10 Antenna top 11 Helical coil guide 11a Groove 12 Helical coil

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 螺旋状のコイルを、スリーブの一部に電
気的に接続して成るヘリカルアンテナにおいて、フレキ
シブル基板に導体パターンを少なくとも2本以上形成
し、該フレキシブル基板を筒状に丸めると共に、隣接す
る前記導体パターン同士をそれらの終端と始端の部分で
電気的に接続して、前記螺旋状のコイルを形成したこと
を特徴とするヘリカルアンテナ。
1. A helical antenna comprising a spiral coil electrically connected to a part of a sleeve, wherein at least two or more conductor patterns are formed on a flexible substrate, and the flexible substrate is rolled into a cylindrical shape. A helical antenna, wherein adjacent helical coils are formed by electrically connecting adjacent conductor patterns at their end and start ends.
JP34791297A 1997-12-17 1997-12-17 Helical antenna Withdrawn JPH11186833A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP34791297A JPH11186833A (en) 1997-12-17 1997-12-17 Helical antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP34791297A JPH11186833A (en) 1997-12-17 1997-12-17 Helical antenna

Publications (1)

Publication Number Publication Date
JPH11186833A true JPH11186833A (en) 1999-07-09

Family

ID=18393455

Family Applications (1)

Application Number Title Priority Date Filing Date
JP34791297A Withdrawn JPH11186833A (en) 1997-12-17 1997-12-17 Helical antenna

Country Status (1)

Country Link
JP (1) JPH11186833A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001004989A1 (en) * 1998-01-19 2001-01-18 Tokin Corporation Whip antenna and method of producing the same
JP2003037430A (en) * 2001-07-26 2003-02-07 Mitsumi Electric Co Ltd Helical antenna
WO2003028149A1 (en) * 2001-09-25 2003-04-03 Matsushita Electric Industrial Co., Ltd. Antenna device and communication equipment using the device
JP2005125010A (en) * 2003-10-27 2005-05-19 Olympus Corp Capsule medical instrument

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001004989A1 (en) * 1998-01-19 2001-01-18 Tokin Corporation Whip antenna and method of producing the same
JP2003037430A (en) * 2001-07-26 2003-02-07 Mitsumi Electric Co Ltd Helical antenna
WO2003028149A1 (en) * 2001-09-25 2003-04-03 Matsushita Electric Industrial Co., Ltd. Antenna device and communication equipment using the device
US6900768B2 (en) 2001-09-25 2005-05-31 Matsushita Electric Industrial Co., Ltd. Antenna device and communication equipment using the device
JP2005125010A (en) * 2003-10-27 2005-05-19 Olympus Corp Capsule medical instrument
JP4520130B2 (en) * 2003-10-27 2010-08-04 オリンパス株式会社 Capsule medical device

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Legal Events

Date Code Title Description
A300 Withdrawal of application because of no request for examination

Free format text: JAPANESE INTERMEDIATE CODE: A300

Effective date: 20050301