JPH04196907A - Antenna system - Google Patents
Antenna systemInfo
- Publication number
- JPH04196907A JPH04196907A JP2328009A JP32800990A JPH04196907A JP H04196907 A JPH04196907 A JP H04196907A JP 2328009 A JP2328009 A JP 2328009A JP 32800990 A JP32800990 A JP 32800990A JP H04196907 A JPH04196907 A JP H04196907A
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- whip antenna
- connection part
- whip
- strip conductor
- 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.)
- Granted
Links
- 239000004020 conductor Substances 0.000 claims abstract description 25
- 238000000605 extraction Methods 0.000 claims description 8
- 239000002184 metal Substances 0.000 abstract description 21
- 238000012423 maintenance Methods 0.000 description 5
- 230000005404 monopole Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
この発明は、携帯無線機等のアンテナ装置に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an antenna device for a portable wireless device or the like.
［従来の技術］
第４図は、特開平１−１８８０３３号公報「アンテナ切
替装置」に示された従来の自動車電話等の携帯無線機を
示すもので、図において、１はアンテナ装置としての携
帯無線機の筐体、２は引出し・収納可能となったホイッ
プアンテナ、３は内蔵アンテナ、４は無線回路部、５は
給電線、６は筐体１内に設けられた金属外筒、７ａはこ
の金属外筒６の上端に設けられた上部側金属接触部、７
ｂは金属外筒６の下端に設けられた下部側金属接触部で
ある。これら上部、下部側金属接触部７ａ、７ｂはそれ
ぞれ無線回路部４．内蔵アンテナ３に給電線５の内導体
５ａを介して接続される一方、金属外筒６の上下端側は
それぞれ無線回路部４．内蔵アンテナ３に給電線５の外
導体５ｂを介して接続されている。[Prior Art] Fig. 4 shows a conventional portable radio device such as a car phone, which is disclosed in Japanese Patent Application Laid-open No. 1-188033 "Antenna Switching Device". The housing of the radio device, 2 is a whip antenna that can be pulled out and stored, 3 is a built-in antenna, 4 is a radio circuit section, 5 is a power supply line, 6 is a metal outer cylinder provided in the housing 1, 7a is a An upper metal contact portion provided at the upper end of this metal outer cylinder 6, 7
b is a lower metal contact portion provided at the lower end of the metal outer cylinder 6. These upper and lower side metal contact parts 7a and 7b are respectively connected to the radio circuit part 4. It is connected to the built-in antenna 3 via the inner conductor 5a of the feeder line 5, while the upper and lower ends of the metal outer cylinder 6 are connected to the radio circuit section 4. It is connected to the built-in antenna 3 via the outer conductor 5b of the feeder line 5.
次に作用について説明する。ホイップアンテナ２は金属
外筒６の筒内に挿着保持されており、引出し時にはホイ
ップアンテナ２の下部が上部金属接触部７ａに接触する
一方、収納時にはホイップアンテナ２は金属外筒６の筒
内に収納され、ホイップアンテナ２の下端は下部側金属
接触部７ｂに、上端は上部側金属接触部７ａに接触する
ようになっている。すなわち、ホイップアンテナ２は収
納時において、伝送線路となる同軸線路の内導体を構成
し、金属外筒６は外導体を構成することになる。Next, the effect will be explained. The whip antenna 2 is inserted and held in the cylinder of the metal outer cylinder 6, and when pulled out, the lower part of the whip antenna 2 contacts the upper metal contact part 7a, while when stored, the whip antenna 2 is inserted into the cylinder of the metal outer cylinder 6. The lower end of the whip antenna 2 contacts the lower metal contact portion 7b, and the upper end contacts the upper metal contact portion 7a. That is, when the whip antenna 2 is stored, it constitutes an inner conductor of a coaxial line serving as a transmission line, and the metal outer cylinder 6 constitutes an outer conductor.
従って、ホイップアンテナ２は、引出し時には無線回路
部４と接続され、収納時には、無線回路部４と内蔵アン
テナ３とに接続されることになり、通話時にホイップア
ンテナ２を引出した場合はもちろん、保守・携行時にホ
イップアンテナ２を収納状態とした場合においても着信
・発呼が可能となる。Therefore, the whip antenna 2 is connected to the radio circuit section 4 when pulled out, and connected to the radio circuit section 4 and the built-in antenna 3 when stored. - Even if the whip antenna 2 is in the retracted state when carried, it is possible to receive and make calls.
［発明が解決しようとする課題］
しかしながら、上記従来のアンテナ装置によれば、保守
・携行時にホイップアンテナ２を収納状態とした場合、
ホイップアンテナ２と金属外筒６で構成される同軸線路
、及び給電線５の挿入損失、さらには、周囲の金属の影
響による内蔵アンテナ３の利得低下によって、着信・発
呼が可能となる地域が限定されてしまうという問題点が
あった。[Problems to be Solved by the Invention] However, according to the above-mentioned conventional antenna device, when the whip antenna 2 is placed in the stored state during maintenance or transportation,
Due to the insertion loss of the coaxial line consisting of the whip antenna 2 and the metal outer tube 6 and the feeder line 5, as well as the decrease in the gain of the built-in antenna 3 due to the influence of surrounding metal, there are areas where it is possible to receive and make calls. The problem was that it was limited.
本発明は上記問題点を解消するためになされたもので、
保守・携行時においても広い地域で着信・発呼でき、遠
方地域との通話を可能にできるアンテナ装置を得ること
を目的とする。The present invention was made to solve the above problems, and
The purpose of the present invention is to obtain an antenna device that can receive and make calls over a wide area even when being maintained or carried around, and can make calls to distant areas.
［課題を解決するための手段］
この発明のアンテナ装置は、筐体の上面に、ホイップア
ンテナのアンテナ引出し部と誘電体板を取付け、誘電体
板における上記ホイップアンテナの引出し方向と平行な
面に、左右に蛇行しつつ上下に延長するストリップ導体
を形成し、このストリップ導体の下端を無線回路部に接
続するとともに、上端をアンテナ引出し部に設けられた
第１接続部に接続し、ホイップアンテナの下端にこのホ
イップアンテナが引出されたときに上記第１接続部に当
接する第２接続部を設けたものである。[Means for Solving the Problems] The antenna device of the present invention has an antenna extraction portion of a whip antenna and a dielectric plate attached to the top surface of a housing, and a surface parallel to the extraction direction of the whip antenna on the dielectric plate. , a strip conductor is formed that extends vertically while meandering left and right, and the lower end of this strip conductor is connected to the wireless circuit section, and the upper end is connected to the first connection section provided in the antenna drawer section, and the whip antenna is connected to the top end of the strip conductor. A second connection part is provided at the lower end of the whip antenna, which comes into contact with the first connection part when the whip antenna is pulled out.
［作用］
誘電体板にストリップ導体を形成したことにより、板状
モノポールアンテナとして動作する補助アンテナを構成
したので、ホイップアンテナを収納した保守・携行時に
おいても、広帯域で着信・発呼が可能となる。[Function] By forming a strip conductor on the dielectric plate, an auxiliary antenna that operates as a plate-shaped monopole antenna is constructed, so it is possible to receive and make calls in a wide band even when the whip antenna is stored and carried around for maintenance. becomes.
［発明の実施例コ
以下、この発明のアンテナ装置を第１１図ないし第３図
に基づいて説明する。尚、第４図の従来例と同じものは
同一符号を付し説明を省略する。[Embodiments of the Invention] Hereinafter, the antenna device of the present invention will be explained based on FIGS. 11 to 3. Components that are the same as those in the conventional example shown in FIG. 4 are denoted by the same reference numerals, and description thereof will be omitted.
各回において、８は筺体１の上面１ａに取付けられたア
ンテナ引出し部で、これは、誘電体円筒９の上端側に金
属円筒１０を備えて成るものである。このアンテナ引出
し部８の筒内に半波長ホイップアンテナ１１が挿着保持
され、引出し、収納可能となっている。また、上記筐体
ｌの上面１ａには直方体の誘電体板１２が取付けられて
おり、この誘電体板１２における上記ホイップアンテナ
１１の引出し方向と平行である一方の幅広面１２ａに、
左右に蛇行しつつ上下に延長するストリップ導体１３が
形成され、補助アンテナ１４を構成している。上記スト
リップ導体１３の上端１３しは導線１５で上記アンテナ
引出し部８の金属円筒１０に接続され、下端１３ｅは給
電線内導体５ａ及び給電線５を介して無線回路部４に接
続されている。上記アンテナ引出し部８における金属円
筒１０の内壁１０ａは、第２図に示すように粗面の摩擦
面に形成されて第１接続部２１となっている。また、ホ
イップアンテナ１１の下端は、上記誘電体円筒９の内壁
９ａ及び金属円筒１０の内壁１０ａに当接する円板状に
形成されて第２接続部２２となっている。In each case, 8 is an antenna extraction part attached to the upper surface 1a of the housing 1, and this is made up of a dielectric cylinder 9 and a metal cylinder 10 on the upper end side. A half-wavelength whip antenna 11 is inserted and held in the cylinder of this antenna drawer part 8, and can be pulled out and stored. Further, a rectangular parallelepiped dielectric plate 12 is attached to the upper surface 1a of the casing l, and one wide surface 12a of the dielectric plate 12 that is parallel to the extraction direction of the whip antenna 11 has a
A strip conductor 13 is formed that extends vertically while meandering left and right, and constitutes an auxiliary antenna 14. The upper end 13 of the strip conductor 13 is connected to the metal cylinder 10 of the antenna draw-out section 8 through a conducting wire 15, and the lower end 13e is connected to the radio circuit section 4 via the feed line conductor 5a and the feed line 5. The inner wall 10a of the metal cylinder 10 in the antenna extraction part 8 is formed into a rough friction surface and serves as a first connection part 21, as shown in FIG. Further, the lower end of the whip antenna 11 is formed into a disc shape that comes into contact with the inner wall 9a of the dielectric cylinder 9 and the inner wall 10a of the metal cylinder 10, and serves as a second connection part 22.
次に作用を説明する。半波長ホイップアンテナ１１をア
ンテナ引出し部８より引出した場合、ホイップアンテナ
１１の下端の第２接続部２２が第１接続部２１に当接し
て、ホイップアンテナ１１とストリップ導体１３とは接
続状態となってホイップアンテナ１１と補助アンテナ１
４が共に動作する。また、半波長ホイップアンテナ１１
をアンテナ引出し部８の筒内に収納した場合、半波長ホ
イップアンテナ１１の上端側に取付けられた誘電体キャ
ップ２３が金属筒体１０の開口部１０ｂに、 嵌着する
ので、ホイップアンテナ１１とストリップ導体１３とは
電気的に遮断され、補助アンテナ１４のみが動作するこ
とになる。Next, the effect will be explained. When the half-wavelength whip antenna 11 is pulled out from the antenna pull-out part 8, the second connection part 22 at the lower end of the whip antenna 11 comes into contact with the first connection part 21, and the whip antenna 11 and the strip conductor 13 are in a connected state. Whip antenna 11 and auxiliary antenna 1
4 work together. In addition, half wavelength whip antenna 11
When the antenna is housed in the cylinder of the antenna drawer 8, the dielectric cap 23 attached to the upper end side of the half-wavelength whip antenna 11 fits into the opening 10b of the metal cylinder 10, so that the whip antenna 11 and the strip It is electrically isolated from the conductor 13, and only the auxiliary antenna 14 operates.
半波長ホイップアンテナ１１の電流分布はその端点て零
となるため、ホイップアンテナ１１を引出したときの入
力インピーダンスは、ホイップアンテナ１１を収納した
場合と同様に、ホイップアンテナ１１の特性に関係なく
補助アンテナ１４単独の入力インピーダンスとなる。Since the current distribution of the half-wavelength whip antenna 11 becomes zero at its end points, the input impedance when the whip antenna 11 is pulled out is the same as when the whip antenna 11 is retracted, regardless of the characteristics of the whip antenna 11. 14 becomes a single input impedance.
次に、補助アンテナ１４の動作原理を説明する。Next, the principle of operation of the auxiliary antenna 14 will be explained.
ストリップ導体１３は詳細に説明すると、第３図に示す
ように、左右に蛇行状に形成されたその折れ曲り部１３
ａが直角になるように形成され、かつ対向する各直線部
１３ｂ間が等間隔となるよう形成されている。そこで、
各直線部１３ｂ間はスリット１４ａ〜１４ｄとなり、こ
の補助アンテナ１４は一種のスリット装荷形の板状アン
テナとみなすことができる。図において、ストリップ導
体１３を流れる電流の径路は破線に示すようになり、等
価的な線路長は長くなる。従って、ストリップ導体１３
の高さｈは波長に対して十分小さくできる。To explain the strip conductor 13 in detail, as shown in FIG.
The straight portions 13b are formed so that a is at a right angle, and the opposing straight portions 13b are equally spaced apart. Therefore,
There are slits 14a to 14d between the straight portions 13b, and the auxiliary antenna 14 can be regarded as a type of slit-loaded plate antenna. In the figure, the path of the current flowing through the strip conductor 13 is shown by a broken line, and the equivalent line length becomes longer. Therefore, the strip conductor 13
The height h can be made sufficiently small relative to the wavelength.
上記のように、補助アンテナ１４は板状モノポールアン
テナとして動作するため、広帯域で着信・発呼が可能で
あり、保守・携行時においても着信・発呼が可能な領域
が広がり、遠方地域との通話が可能となる。しかも、小
型化が可能で、補助アンテナ１４を設けたことによる容
積・重量の増加を僅かに抑えることができるので、保守
・携行時においての支障もない。As mentioned above, since the auxiliary antenna 14 operates as a plate-shaped monopole antenna, it can receive and make calls over a wide band, expanding the area where it can receive and make calls even during maintenance and carrying. You will be able to make calls. Moreover, it can be made smaller and the increase in volume and weight due to the provision of the auxiliary antenna 14 can be suppressed slightly, so there is no problem during maintenance and portability.
［発明の効果コ
以上説明したように、本発明のアンテナ装置によれば、
筐体の上面に、ホイップアンテナのアンテナ引出し部と
誘電体板を取付け、誘電体板における上記ホイップアン
テナの引出し方向と平行な面に、左右に蛇行しつつ上下
に延長するストリップ導体を形成し、このストリップ導
体の下端を無線回路部に接続するとともに、上端をアン
テナ引出し部に設けられた第１接続部に接続し、ホイッ
プアンテナの下端にこのホイップアンテナが引出された
ときに上記第１接続部に当接する第２接続部を設けて成
るので、保守・携行時においても広い地域で着信・発呼
でき、遠方地域との通話が可能となる。[Effects of the Invention As explained above, according to the antenna device of the present invention,
An antenna extraction portion of a whip antenna and a dielectric plate are attached to the top surface of the casing, and a strip conductor is formed on a surface of the dielectric plate parallel to the direction in which the whip antenna is extracted, extending vertically while meandering from side to side. The lower end of this strip conductor is connected to the radio circuit section, and the upper end is connected to a first connection section provided in the antenna draw-out section, so that when the whip antenna is pulled out, the above-mentioned first connection section is connected to the bottom end of the whip antenna. Since the second connection part that comes into contact with is provided, it is possible to receive and make calls in a wide area even during maintenance and carrying, and it is possible to make calls to distant areas.
第１図ないし第３図は本発明のアンテナ装置の一実施例
を示し、第１図は全体構成斜視図、第２図はアンテナ引
出し部の断面図、第３図はストリップ導体の説明図、第
４図は従来のアンテナ装置の一例を示す全体構成斜視図
である。
１・・・筐体、１ａ・・・筐体上面、４・・・無線回路
部、８・・・アンテナ引出し部、１１・・・半波長ホイ
ップアンテナ（ホイップアンテナ）、１２・・・誘電体
板、１３・・・ストリップ導体、２１・・・第１接続部
、２２・・・第２接続部。
代理人 大暑 増雄（ばか２名）
第１ 図1 to 3 show an embodiment of the antenna device of the present invention, in which FIG. 1 is a perspective view of the overall configuration, FIG. 2 is a sectional view of the antenna extraction part, and FIG. 3 is an explanatory diagram of a strip conductor. FIG. 4 is a perspective view of the overall configuration of an example of a conventional antenna device. DESCRIPTION OF SYMBOLS 1... Housing, 1a... Housing upper surface, 4... Radio circuit part, 8... Antenna drawer part, 11... Half wavelength whip antenna (whip antenna), 12... Dielectric material Plate, 13... Strip conductor, 21... First connection part, 22... Second connection part. Agent Masuo Ohatsu (2 idiots) Figure 1
Claims (1)
ンテナ引出し部より引出されるホイップアンテナと、上
記筐体に収納された無線回路部と、上記筐体の上面に取
付けられた誘電体板と、この誘電体板における上記ホイ
ップアンテナの引出し方向と平行な面に設けられ、かつ
左右に蛇行しつつ上下に延長する如く設けられるととも
に、下端が上記無線回路部に接続されたストリップ導体
と、上記アンテナ引出し部に設けられ、かつ上記ストリ
ップ導体の上端が接続された第１接続部と、上記ホイッ
プアンテナの下端に設けられて当該ホイップアンテナが
引出されたときに上記第１接続部に当接して接続状態と
なる第２接続部とを備えたことを特徴とするアンテナ装
置。An antenna pull-out section attached to the top surface of the housing, a whip antenna pulled out from the antenna pull-out section, a radio circuit section housed in the housing, and a dielectric plate attached to the top surface of the housing. , a strip conductor provided on a surface of the dielectric plate parallel to the extraction direction of the whip antenna, extending vertically while meandering from side to side, and having a lower end connected to the wireless circuit section; a first connection part provided on the antenna draw-out part and to which the upper end of the strip conductor is connected; and a first connection part provided on the lower end of the whip antenna and abutting on the first connection part when the whip antenna is pulled out. An antenna device comprising: a second connection portion that is in a connected state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2328009A JP2510782B2 (en) | 1990-11-28 | 1990-11-28 | Antenna device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2328009A JP2510782B2 (en) | 1990-11-28 | 1990-11-28 | Antenna device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04196907A true JPH04196907A (en) | 1992-07-16 |
| JP2510782B2 JP2510782B2 (en) | 1996-06-26 |
Family
ID=18205493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2328009A Expired - Fee Related JP2510782B2 (en) | 1990-11-28 | 1990-11-28 | Antenna device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2510782B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5801662A (en) * | 1995-12-28 | 1998-09-01 | Nec Corporation | Portable radio device antenna apparatus |
| US5995064A (en) * | 1996-06-20 | 1999-11-30 | Kabushiki Kaisha Yokowa, Also Trading As Yokowo Co., Ltd. | Antenna having a returned portion forming a portion arranged in parallel to the longitudinal antenna direction |
| EP1061603A2 (en) * | 1999-06-14 | 2000-12-20 | Filtronic LK Oy | Antenna structure |
| WO2001082409A1 (en) * | 2000-04-27 | 2001-11-01 | Allgon Mobile Communications Ab | An antenna device and a method of manufacturing such a device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59143113U (en) * | 1983-03-16 | 1984-09-25 | 日本アンテナ株式会社 | High gain whip antenna |
| JPS6142148U (en) * | 1984-08-23 | 1986-03-18 | 三菱電機株式会社 | portable radio |
| JPH02179009A (en) * | 1988-12-28 | 1990-07-12 | Kokusai Electric Co Ltd | Colinear array antenna for mobile radio equipment |
-
1990
- 1990-11-28 JP JP2328009A patent/JP2510782B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59143113U (en) * | 1983-03-16 | 1984-09-25 | 日本アンテナ株式会社 | High gain whip antenna |
| JPS6142148U (en) * | 1984-08-23 | 1986-03-18 | 三菱電機株式会社 | portable radio |
| JPH02179009A (en) * | 1988-12-28 | 1990-07-12 | Kokusai Electric Co Ltd | Colinear array antenna for mobile radio equipment |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5801662A (en) * | 1995-12-28 | 1998-09-01 | Nec Corporation | Portable radio device antenna apparatus |
| US5995064A (en) * | 1996-06-20 | 1999-11-30 | Kabushiki Kaisha Yokowa, Also Trading As Yokowo Co., Ltd. | Antenna having a returned portion forming a portion arranged in parallel to the longitudinal antenna direction |
| EP1061603A2 (en) * | 1999-06-14 | 2000-12-20 | Filtronic LK Oy | Antenna structure |
| EP1061603A3 (en) * | 1999-06-14 | 2002-08-28 | Filtronic LK Oy | Antenna structure |
| WO2001082409A1 (en) * | 2000-04-27 | 2001-11-01 | Allgon Mobile Communications Ab | An antenna device and a method of manufacturing such a device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2510782B2 (en) | 1996-06-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5867126A (en) | Surface-mount-type antenna and communication equipment using same | |
| US6342860B1 (en) | Micro-internal antenna | |
| JPWO2007043150A1 (en) | Antenna device for portable terminal and portable terminal | |
| EP0508836A1 (en) | Antenna unit for portable wireless apparatus | |
| JPH04331501A (en) | Antenna fitting structure for radio terminal equipment | |
| JP2007104468A (en) | Mobile radio equipment | |
| KR950701458A (en) | Antenna assembly for radio circuit and method therefor | |
| US5909198A (en) | Chip antenna | |
| KR940023058A (en) | Portable wireless communication device | |
| US6433747B1 (en) | Integrated PIFA having an embedded connector on the radome thereof | |
| JPH04196907A (en) | Antenna system | |
| JP2581834B2 (en) | Antenna device | |
| KR100346990B1 (en) | Antenna unit for portable radio unit | |
| JPH10233608A (en) | Portable radio equipment and antenna system | |
| ITRM940576A1 (en) | "ANTENNA SYSTEM HAVING MANY ANTENNA PORTIONS" | |
| US20020068603A1 (en) | Wireless communication device with an improved antenna structure | |
| JP2002124812A (en) | Small-sized antenna | |
| JP2021190756A (en) | Antenna device | |
| JP2004040154A (en) | Antenna for portable radio apparatus and portable radio apparatus | |
| JP3634256B2 (en) | Antenna device | |
| JP3047512B2 (en) | Antenna structure of portable radio | |
| JPH06252619A (en) | Antenna support and connecting method and antenna support and connection structure | |
| JPH0993016A (en) | Surface mounted antenna and communication equipment using the same | |
| JPH11243310A (en) | Retractable whiip antenna | |
| JP3075894B2 (en) | Antenna device for portable radio |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |