[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

JP3301897B2 - Antenna device - Google Patents

Antenna device

Info

Publication number
JP3301897B2
JP3301897B2 JP24602395A JP24602395A JP3301897B2 JP 3301897 B2 JP3301897 B2 JP 3301897B2 JP 24602395 A JP24602395 A JP 24602395A JP 24602395 A JP24602395 A JP 24602395A JP 3301897 B2 JP3301897 B2 JP 3301897B2
Authority
JP
Japan
Prior art keywords
coaxial line
antenna
housing
planar antenna
line
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 - Fee Related
Application number
JP24602395A
Other languages
Japanese (ja)
Other versions
JPH0993014A (en
Inventor
晃彦 内野
明弘 勝呂
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.)
Kyocera Corp
Original Assignee
Kyocera 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 Kyocera Corp filed Critical Kyocera Corp
Priority to JP24602395A priority Critical patent/JP3301897B2/en
Publication of JPH0993014A publication Critical patent/JPH0993014A/en
Application granted granted Critical
Publication of JP3301897B2 publication Critical patent/JP3301897B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Waveguide Aerials (AREA)
  • Support Of Aerials (AREA)

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、衛星通信に有効な
平面アンテナに関する。
The present invention relates to a planar antenna effective for satellite communication.

【0002】[0002]

【従来の技術】図6〜図8を用いて衛星を用いた携帯電
話を説明する。図6は移動体衛星通信の説明図である。
近年、衛星32を用いた携帯電話20の構想が各社から
提案されており、それら衛星通信システムの周波数帯
は、地上の携帯電話20から衛星32へ1.6GHz帯
が、衛星32から地上の携帯電話20へ2.4GHz帯
が割当てられるもの、また1.6GHz帯では地上から
衛星、衛星から地上の双方向の通信に用いる周波数帯と
して割当てられるものがある。アンテナ構成としては、
例えば、衛星通信34に送信用マイクロストリップライ
ン平面アンテナ21(以下送信用平面アンテナ)と受信
用マイクロストリップライン平面アンテナ22(以下受
信用平面アンテナ)を用いた折り畳みアンテナアレイ2
3による方法(ITU研究 世界の非静止衛星通信シス
テム No.261/262 新日本ITU協会 19
93年8月刊行 P.36)が提案されている。
2. Description of the Related Art A portable telephone using a satellite will be described with reference to FIGS. FIG. 6 is an explanatory diagram of the mobile satellite communication.
In recent years, various companies have proposed the concept of the mobile phone 20 using the satellite 32. The frequency band of the satellite communication system is such that the 1.6 GHz band from the terrestrial mobile phone 20 to the satellite 32 and the frequency band from the satellite 32 to the terrestrial mobile phone. The 2.4 GHz band is assigned to the telephone 20, and the 1.6 GHz band is assigned as a frequency band used for two-way communication from the ground to the satellite and from the satellite to the ground. As the antenna configuration,
For example, the folding antenna array 2 using the transmitting microstrip line planar antenna 21 (hereinafter, transmitting planar antenna) and the receiving microstrip line planar antenna 22 (hereinafter, receiving planar antenna) for the satellite communication 34.
3 (ITU research Non-geostationary satellite communication system in the world No. 261/262 New Japan ITU Association 19
Published August 1993 36) has been proposed.

【0003】図7により折り畳みアンテナアレイ23の
例を説明する。説明のため上記ITU研究に掲載されて
いるオデッセイシステムで提案されている構成を例にと
って述べる。図7にて示す携帯電話20は、送信用平面
アンテナ21と受信用平面アンテナ22を誘電体に配置
した折り畳みアンテナアレイ23を備えている。折り畳
みアンテナ23は携帯電話20に対して折り曲げ角αが
0°〜180°で任意に調節できる。この場合、送信用
平面アンテナ21と受信用平面アンテナ22でそれぞれ
周波数f1,f2 を用い衛星と通信できる。送信、受信の
帯域が同じ周波数f1 の衛星通信システムの場合、前記
平面アンテナのうち送信用平面アンテナ21を送信と受
信に兼用すればよい。
An example of the folding antenna array 23 will be described with reference to FIG. For the sake of explanation, a configuration proposed in the Odyssey system described in the above-mentioned ITU research will be described as an example. The mobile phone 20 shown in FIG. 7 includes a folded antenna array 23 in which a transmitting flat antenna 21 and a receiving flat antenna 22 are arranged on a dielectric. The folding antenna 23 can be arbitrarily adjusted at a bending angle α of 0 ° to 180 ° with respect to the mobile phone 20. In this case, the transmitting plane antenna 21 and the receiving plane antenna 22 can communicate with the satellite using the frequencies f1 and f2, respectively. In the case of a satellite communication system having the same frequency f1 in the transmission and reception bands, the transmission plane antenna 21 may be used for both transmission and reception.

【0004】[0004]

【発明が解決しようとする課題】しかし、この折り畳み
アンテナアレイ23では、衛星通信34の待ち受け時に
アンテナアレイ23を折り畳んでいる場合(折り曲げ角
α=0度)、アンテナパッチ面は携帯電話20の背面に
収納されるため、感度の劣化は免れない。さらには、衛
星通信時において、図8に示す地上(携帯電話20)と
衛星32との間に生ずる仰角θによる通信感度の変化
は、図7(b)に示す折り畳みアンテナアレイ23と携
帯電話20との折り曲げ角αを変えて通信感度を安定さ
せる必要がある。また、誘電体を利用した平面アンテナ
は、一般に、狭帯域であり筺体・人体など周囲の誘電体
との相互作用により、平面アンテナの共振周波数は変動
しやすい。
However, in the folded antenna array 23, when the antenna array 23 is folded at the time of waiting for the satellite communication 34 (bending angle α = 0 degrees), the antenna patch surface is located on the rear surface of the mobile phone 20. , The sensitivity is inevitably deteriorated. Further, at the time of satellite communication, the change in the communication sensitivity due to the elevation angle θ between the ground (mobile phone 20) and the satellite 32 shown in FIG. 8 is caused by the folding antenna array 23 and the mobile phone 20 shown in FIG. It is necessary to stabilize the communication sensitivity by changing the bending angle α. In addition, a planar antenna using a dielectric generally has a narrow band, and the resonance frequency of the planar antenna is likely to fluctuate due to interaction with a surrounding dielectric such as a housing or a human body.

【0005】[0005]

【課題を解決するための手段】本発明は、上記の課題を
解決するため、平面アンテナに高周波電流を供給する同
軸線を携帯電話機の筺体内に収納及び引き出し自在に構
成する。待ち受け受信時等において平面アンテナは筺体
内あるいは筺体近傍に有り、これに従い同軸線は筺体内
に収納される。通信時等において、平面アンテナは携帯
電話機の筺体から離され、これに従い同軸線が引き出さ
れる。筺体から離された平面アンテナを支持するための
支持部材は、外部導体が剛体製の同軸線あるいは同軸線
の外部導体を剛体で覆う等の補強をして同軸線自身を支
持部材として利用する。
According to the present invention, in order to solve the above-mentioned problems, a coaxial cable for supplying a high-frequency current to a planar antenna is configured to be housed and pulled out of a housing of a portable telephone. At the time of standby reception or the like, the planar antenna is in or near the housing, and the coaxial line is accommodated in the housing accordingly. During communication or the like, the planar antenna is separated from the housing of the mobile phone, and a coaxial line is drawn out accordingly. The support member for supporting the planar antenna separated from the housing uses the coaxial line itself as a support member by reinforcing the outer conductor with a rigid coaxial line or covering the outer conductor of the coaxial line with a rigid body.

【0006】[0006]

【発明の実施の形態】本発明によるアンテナ装置の実施
形態を述べる。図1〜図3に示す、本発明によるアンテ
ナ装置は、背面給電式のマイクロストリップライン平面
アンテナ5とこの平面アンテナ5を支える支持体15か
らなり、携帯電話20に伸縮自在である。平面アンテナ
5は、誘電体基板の比誘電率・寸法、誘電体基板の厚み
のパラメータ、誘電体基板へ貼付するパッチ状の導体の
寸法、給電ピンの位置等を適切に設計することにより、
円偏波アンテナとして動作する。図3に示すように、平
面アンテナ5はパッチ状の導体2と誘電体3と地導体板
4と少なくとも1本の給電ピン1を備えている。前記地
導体板4に接続する第1の同軸線13の外部導体10は
剛体からなり、もしくは外部導体10を剛体で覆って平
面アンテナ5の支持体15として兼用する。支持体15
は平面アンテナ5の支持と、給電線としての2つの機能
を兼ね備える。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an antenna device according to the present invention will be described. The antenna device according to the present invention shown in FIGS. 1 to 3 comprises a back-fed microstrip line planar antenna 5 and a support 15 supporting the planar antenna 5, and is extendable and retractable to a mobile phone 20. The planar antenna 5 is designed by appropriately designing the relative permittivity and dimensions of the dielectric substrate, the parameters of the thickness of the dielectric substrate, the dimensions of the patch-shaped conductor to be attached to the dielectric substrate, the positions of the feed pins, and the like.
Operates as a circularly polarized antenna. As shown in FIG. 3, the planar antenna 5 includes a patch-shaped conductor 2, a dielectric 3, a ground conductor plate 4, and at least one feed pin 1. The outer conductor 10 of the first coaxial cable 13 connected to the ground conductor plate 4 is made of a rigid body, or serves as a support 15 of the planar antenna 5 by covering the outer conductor 10 with a rigid body. Support 15
Has both functions of supporting the planar antenna 5 and serving as a feed line.

【0007】また、図1に示すように、平面アンテナ5
を携帯電話20の筺体に収納、そして引き出しするため
には、無線回路に接続する第2の同軸線14を設け、こ
れをカールコード状にして弾性力を持たせ、支持体15
を兼ねる第1の同軸線13の下端部を第2の同軸線14
に接続し、同図(b)のように収納時に第2の同軸線1
4が縮み、同図(a)のように引き出し時に第2の同軸
線14が伸長することを利用できる。
Further, as shown in FIG.
In order to store and pull out the mobile phone 20, a second coaxial line 14 connected to a wireless circuit is provided, which is formed into a curled cord to have elasticity, and a support 15
The lower end of the first coaxial cable 13 serving also as the second coaxial cable 14
To the second coaxial cable 1 at the time of storage as shown in FIG.
4 can be used, and the second coaxial cable 14 can be used to expand at the time of drawing as shown in FIG.

【0008】以上の構成により待ち受け時、通信時とも
に感度を安定させ、共振周波数の変動を緩和することが
でき、収納及び引き出しの操作性を改善することが可能
となる。
With the above configuration, the sensitivity can be stabilized both during standby and during communication, fluctuations in the resonance frequency can be reduced, and the operability of storage and drawer can be improved.

【0009】本発明における平面アンテナ5が円偏波ア
ンテナとして動作する場合について図3を用いて説明す
る。図3(a)の平面アンテナ5はパッチ状の導体2と
誘電体3と地導体板4を貫通する給電ピン用の貫通孔6
が形成されている。図3(b)のように給電ピン1は貫
通孔6を通りパッチ状の導体2と第1の同軸線13の中
心導体12を接続する。貫通孔6のうち地導体板4の孔
は誘電体3の孔よりも径が大きく、給電ピン1と地導体
板4とは接触していない。地導体板4には第1の同軸線
13の外部導体10が接続している。例えば、図3のよ
うに平面アンテナ5に四角形パッチアンテナ(パッチ状
の導体2)を設けた場合、平面アンテナ5は1点背面給
電方式のパッチアンテナで長い方の辺と短い方の辺をそ
れぞれA,Bとすると100×A/B=102〜103
%程度になるように構成する。図3(b)のように給電
ピン1は四角形パッチ状の導体2の略対角線上に配置す
る。このとき長い方の辺Aでは、低い周波数で共振し、
直線偏波特性を示し、短い方の辺Bでは、高い周波数で
共振し、前記直線偏波と交差した直線偏波特性を示し、
それらの間の周波数で円偏波アンテナとして動作する。
A case where the planar antenna 5 according to the present invention operates as a circularly polarized antenna will be described with reference to FIG. The planar antenna 5 shown in FIG.
Are formed. As shown in FIG. 3B, the power supply pin 1 connects the patch-shaped conductor 2 and the center conductor 12 of the first coaxial cable 13 through the through hole 6. The hole of the ground conductor plate 4 in the through hole 6 is larger in diameter than the hole of the dielectric 3, and the power supply pin 1 and the ground conductor plate 4 are not in contact with each other. The outer conductor 10 of the first coaxial cable 13 is connected to the ground conductor plate 4. For example, when a quadrangular patch antenna (patch-shaped conductor 2) is provided on the planar antenna 5 as shown in FIG. 3, the planar antenna 5 is a single-point back-feeding type patch antenna and has a longer side and a shorter side. If A and B, 100 × A / B = 102 to 103
%. As shown in FIG. 3B, the power supply pins 1 are arranged substantially diagonally on the conductor 2 in the form of a rectangular patch. At this time, the longer side A resonates at a lower frequency,
Shows linear polarization characteristics, on the shorter side B, resonates at a high frequency, shows linear polarization characteristics that intersect with the linear polarization,
It operates as a circularly polarized antenna at frequencies between them.

【0010】さらに、第1の同軸線13と給電ピン1の
接続はインピーダンス整合を給電ピン1の位置によりと
る。すなわち、インピーダンス整合は給電ピン1を四角
形の対角線上に100×(A−B)/A=30%程度に
なるように配置すればよいことが知られている。以上に
より、特性インピーダンス50Ωの第1の同軸線13で
直接給電することが可能になる。
Further, the connection between the first coaxial line 13 and the power supply pin 1 achieves impedance matching by the position of the power supply pin 1. That is, it is known that the impedance matching may be performed by disposing the power supply pins 1 on a diagonal line of a square so as to be about 100 × (AB) / A = 30%. As described above, power can be directly supplied by the first coaxial cable 13 having the characteristic impedance of 50Ω.

【0011】図4に示すように、支持体15の上端部に
円筒磁石16を配置し、平面アンテナ5の地導体板4を
磁石16に吸引される金属で構成することができる。平
面アンテナ5と支持体15は、分離・接続による交換が
自在になり、平面アンテナを交換して右旋円偏波、左旋
円偏波の何れのアンテナでも任意に使用することができ
る。あわせて、支持体15により平面アンテナ5を安定
して支持することが可能となる。さらに平面アンテナ5
以外のアンテナや同軸線を接続することも可能となる。
As shown in FIG. 4, a cylindrical magnet 16 is arranged at the upper end of a support 15, and the ground conductor plate 4 of the planar antenna 5 can be made of metal attracted by the magnet 16. The plane antenna 5 and the support 15 can be freely exchanged by separation and connection, and the plane antenna can be exchanged to use any of right-handed and left-handed circularly polarized antennas. In addition, the planar antenna 5 can be stably supported by the support 15. Further planar antenna 5
It is also possible to connect other antennas and coaxial cables.

【0012】さらに、平面アンテナ5と支持体15との
接続構成について説明する。前記支持体は例えば2つの
種類が考えられる。1つは第1の同軸線13の外部導体
が剛体で構成された同軸線(いわゆる、リジットケーブ
ル)、もう1つは、通常の同軸線をパイプ状の剛体に通
した補強タイプのものであるが、高周波電流は第1の同
軸線13の外部導体10の内壁側を流れて給電ピン1に
供給されるので、第1の同軸線13の外部導体10の外
壁側の構成はなんら、給電線の特性に影響を与えない。
そこで、支持体15の強度を増すために、図5(a)〜
(d)に示すように、支持体15の切断面形状を3角形
以上の多角形にしたり、更に支持体15の表面に、前記
支持体15を収納・伸長するための凹凸構造を設けよう
とも高周波的には何ら支障はない。なんとなれば、同軸
線路の特性インピーダンスは内部導体の半径と外部導体
の内側の半径と絶縁体の比誘電率をそれぞれZ0 、r 、
R、εr とするとZ0 =(138/√εr )log
10(R/r)で決まるからである。
Further, a connection configuration between the planar antenna 5 and the support 15 will be described. The support may be of two types, for example. One is a coaxial line (so-called rigid cable) in which the outer conductor of the first coaxial line 13 is formed of a rigid body, and the other is a reinforcing type in which a normal coaxial line is passed through a pipe-shaped rigid body. However, since the high-frequency current flows on the inner wall side of the outer conductor 10 of the first coaxial line 13 and is supplied to the feed pin 1, the outer wall side of the outer conductor 10 of the first coaxial line 13 has any configuration. Does not affect the characteristics of
Therefore, in order to increase the strength of the support 15, FIG.
As shown in (d), the cut surface shape of the support 15 may be triangular or more polygonal, or the surface of the support 15 may be provided with a concavo-convex structure for storing and extending the support 15. There is no problem at high frequencies. The characteristic impedance of the coaxial line is expressed as Z 0 , r,
Assuming R and ε r , Z 0 = (138 / √ε r ) log
This is because it is determined by 10 (R / r).

【0013】なお、上述の補強タイプの第1の同軸線1
3の場合、1本の同軸線を用いて補強した部分を第1の
同軸線(支持体15)とし、その下の補強していない部
分を第2の同軸線14として構成できることは言うまで
もない。
The above-mentioned reinforcing type first coaxial cable 1
In the case of No. 3, it is needless to say that a portion reinforced using one coaxial line can be configured as a first coaxial line (support 15), and an unreinforced portion thereunder can be configured as a second coaxial line 14.

【0014】以上、本発明の実施形態の説明のように、
本発明のように平面アンテナ5を伸縮自在に構成するこ
とにより、待ち受け状態時等の平面アンテナ5を収納し
ている状態でも、十分な感度を得ることができる。衛星
通信34時等の平面アンテナ5を引き出した状態では、
頭等の誘電体の影響が減り良好な通信ができる。
As described above, according to the embodiment of the present invention,
By making the planar antenna 5 extendable and contractable as in the present invention, sufficient sensitivity can be obtained even when the planar antenna 5 is housed in a standby state or the like. In the state where the planar antenna 5 is pulled out at the time of satellite communication 34, etc.,
The effect of the dielectric such as the head is reduced, and good communication can be performed.

【0015】なお、以上の例では、第2の同軸線14を
カールコード状に加工した構成について説明したが、こ
れ以外の方法を否定するものではない。また筺体の例と
して携帯電話20を挙げたが、携帯用小型無線機での使
用を妨げるものではない。
In the above example, the configuration in which the second coaxial wire 14 is processed into a curled cord shape has been described, but other methods are not denied. Further, although the mobile phone 20 has been described as an example of the housing, it does not prevent use in a portable small wireless device.

【0016】[0016]

【発明の効果】以上説明したように本発明によれば、ア
ンテナ利得の劣化防止と、アンテナの共振周波数の変動
を緩和することができるという利点がある。
As described above, according to the present invention, there are advantages that deterioration of the antenna gain can be prevented and fluctuation of the resonance frequency of the antenna can be reduced.

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

【図1】本発明の実施形態の(a)はアンテナ伸長時、
(b)はアンテナ収納時を示すもので、それぞれ携帯電
話の筺体に対する平面アンテナ、第1の同軸線(支持
体)、第2の同軸線の状態を示す図。
FIG. 1A shows an embodiment of the present invention in which an antenna is extended.
(B) is a diagram showing a state where the antenna is housed, and shows a state of a planar antenna, a first coaxial line (support), and a second coaxial line with respect to a housing of a mobile phone, respectively.

【図2】本発明の実施形態を示し、(a)はアンテナ伸
長時の携帯電話の正面図、(b)、(c)はそれぞれア
ンテナ収納時の図であって(b)は平面アンテナが筺体
上に位置される携帯電話の正面図、(c)は平面アンテ
ナが筺体内に位置される携帯電話の正面図。
FIGS. 2A and 2B show an embodiment of the present invention, wherein FIG. 2A is a front view of the mobile phone when the antenna is extended, FIGS. FIG. 3C is a front view of the mobile phone located on the housing, and FIG. 4C is a front view of the mobile phone having the planar antenna positioned inside the housing.

【図3】本発明の実施形態を示し、(a)は平面アンテ
ナの斜視図、(b)は平面アンテナに第1の同軸線(支
持体)を接続した状態の斜視図。
3A and 3B show an embodiment of the present invention, wherein FIG. 3A is a perspective view of a planar antenna, and FIG. 3B is a perspective view of a state where a first coaxial cable (support) is connected to the planar antenna.

【図4】本発明の実施形態を示し、(a)はアンテナ取
り付け時、(b)はアンテナ取り外し時の図。
4A and 4B show an embodiment of the present invention, wherein FIG. 4A is a diagram when an antenna is attached, and FIG.

【図5】(a)〜(d)はそれぞれ本発明の実施形態を
示す第1の同軸線の断面図。
FIGS. 5A to 5D are cross-sectional views of a first coaxial line showing an embodiment of the present invention.

【図6】移動体衛星通信の説明図。FIG. 6 is an explanatory diagram of mobile satellite communication.

【図7】従来例を示し、(a)は携帯電話を正面から見
た状態、(b)はアンテナを衛星の方向に向けた携帯電
話を側面から見た状態の図。
7A and 7B show a conventional example, in which FIG. 7A is a state in which the mobile phone is viewed from the front, and FIG. 7B is a view in which the mobile phone is viewed from the side with the antenna directed to the satellite.

【図8】衛星仰角の説明図。FIG. 8 is an explanatory diagram of a satellite elevation angle.

【符号の説明】[Explanation of symbols]

1 :給電ピン 2 :パッチ状の導体 3 :誘電体(セラミック等) 4 :地導体板(磁石に吸着する金属) 5 :マイクロストリップライン平面アンテナ(平面ア
ンテナ) 6 :給電ピン用の貫通孔 10:同軸線の外部導体 11:同軸線の絶縁体 12:同軸線の中心導体 13:第1の同軸線(平面アンテナの支持体15兼用) 14:第2の同軸線 15:平面アンテナの支持体 16:磁石 20:携帯電話(携帯用小型無線機) 22:送信用マイクロストリップライン平面アンテナ
(送信平面アンテナ) 23:受信用マイクロストリップライン平面アンテナ
(受信平面アンテナ) 24:折り畳みアンテナアレイ 32:衛星 34:衛星通信 α :折り曲げ角 θ :衛星の仰角
1: feed pin 2: patch-like conductor 3: dielectric (such as ceramic) 4: ground conductor plate (metal adsorbed by a magnet) 5: microstrip line planar antenna (planar antenna) 6: through hole for feed pin 10 : Outer conductor of coaxial line 11: insulator of coaxial line 12: center conductor of coaxial line 13: first coaxial line (also used as support 15 for planar antenna) 14: second coaxial line 15: support for planar antenna 16: Magnet 20: Mobile phone (portable small radio) 22: Microstrip line planar antenna for transmission (transmitting planar antenna) 23: Microstrip line planar antenna for receiving (planar receiving antenna) 24: Folded antenna array 32: Satellite 34: Satellite communication α: Bending angle θ: Elevation angle of satellite

フロントページの続き (56)参考文献 特開 平9−294286(JP,A) 特開 平9−232842(JP,A) 特開 平5−14044(JP,A) 特開 平4−120902(JP,A) 特開 平6−268574(JP,A) 特開 平7−115380(JP,A) 特開 平6−125290(JP,A) 特開 平8−340207(JP,A) 特開 平6−303016(JP,A) (58)調査した分野(Int.Cl.7,DB名) H01Q 1/24 - 1/38 H01Q 13/08 H01Q 21/06 Continuation of front page (56) References JP-A-9-294286 (JP, A) JP-A-9-232842 (JP, A) JP-A-5-14044 (JP, A) JP-A-4-120902 (JP) JP-A-6-268574 (JP, A) JP-A-7-115380 (JP, A) JP-A-6-125290 (JP, A) JP-A-8-340207 (JP, A) 6-303016 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) H01Q 1/24-1/38 H01Q 13/08 H01Q 21/06

Claims (3)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】平面アンテナに具備された給電ピンに高周
波電流を給電する第1の同軸線を該平面アンテナの支持
体として兼用し、無線機の筺体内で回路に接続された第
2の同軸線に前記第1の同軸線を接続し、待ち受け時等
において無線機の筺体内に前記第1の同軸線を収納し平
面アンテナを該筺体内あるいは該筺体近傍に位置させ、
通信時等において前記筺体内から第1の同軸線を引き出
し平面アンテナを筺体から離れた所定位置に該第1の同
軸線にて支持することを特徴とするアンテナ装置。
A first coaxial line for supplying a high-frequency current to a power supply pin provided on a planar antenna also serves as a support for the planar antenna, and a second coaxial cable connected to a circuit in a housing of the wireless device. Connecting the first coaxial line to a line, storing the first coaxial line in a housing of the wireless device at the time of standby or the like, and positioning a planar antenna in the housing or in the vicinity of the housing,
An antenna device, wherein a first coaxial line is drawn out of the housing during communication or the like, and the planar antenna is supported by the first coaxial line at a predetermined position away from the housing.
【請求項2】前記第2の同軸線をカールコード形状にし
て弾性力を持たせ、前記無線機の筺体内に第1の同軸線
を収納時、前記弾性力に基づき第2の同軸線が縮み、前
記無線機の筺体内から第1の同軸線を引き出した時、前
記弾性力に基づき第2の同軸線が伸長することを特徴と
する請求項1記載のアンテナ装置。
2. The second coaxial line is formed into a curled cord shape to have elasticity, and when the first coaxial line is stored in the housing of the wireless device, the second coaxial line is formed based on the elasticity. 2. The antenna device according to claim 1, wherein when the first coaxial line is contracted and the first coaxial line is drawn out of the housing of the wireless device, the second coaxial line is extended based on the elastic force.
【請求項3】前記平面アンテナは、板状の誘電体の一方
の面にパッチ状の導体と他方の面に地導体板と該一方の
面から他方の面の地導体板を貫通する孔と該地導体板に
非接触で該孔内を通り前記パッチ状の導体に接続する少
なくとも1本の給電ピンとを具備した背面給電方式のマ
イクロストリップライン平面アンテナで構成され、衛星
との通信を行う陸上無線機に具備されることを特徴とす
る請求項1記載のアンテナ装置。
3. The planar antenna according to claim 1, wherein the plate-like dielectric has a patch conductor on one surface, a ground conductor plate on the other surface, and a hole penetrating the ground conductor plate from the one surface to the other surface. A land feeding type microstrip line planar antenna having at least one feeding pin connected to the patch-shaped conductor through the hole in a non-contact manner with the ground conductor plate, and configured to communicate with a satellite on land The antenna device according to claim 1, wherein the antenna device is provided in a wireless device.
JP24602395A 1995-09-25 1995-09-25 Antenna device Expired - Fee Related JP3301897B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24602395A JP3301897B2 (en) 1995-09-25 1995-09-25 Antenna device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24602395A JP3301897B2 (en) 1995-09-25 1995-09-25 Antenna device

Publications (2)

Publication Number Publication Date
JPH0993014A JPH0993014A (en) 1997-04-04
JP3301897B2 true JP3301897B2 (en) 2002-07-15

Family

ID=17142304

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24602395A Expired - Fee Related JP3301897B2 (en) 1995-09-25 1995-09-25 Antenna device

Country Status (1)

Country Link
JP (1) JP3301897B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11266215A (en) * 1998-03-16 1999-09-28 Fujitsu Ltd Region type information terminal device
JP2007194842A (en) 2006-01-18 2007-08-02 Fujitsu Component Ltd Communications device
JP2010130262A (en) * 2008-11-26 2010-06-10 Kyocera Corp Mobile terminal

Also Published As

Publication number Publication date
JPH0993014A (en) 1997-04-04

Similar Documents

Publication Publication Date Title
US6326927B1 (en) Capacitively-tuned broadband antenna structure
US6147647A (en) Circularly polarized dielectric resonator antenna
EP0847103B1 (en) Shared antenna and portable radio device using the same
US6236368B1 (en) Loop antenna assembly for telecommunication devices
US6424300B1 (en) Notch antennas and wireless communicators incorporating same
EP0637094B1 (en) Antenna for mobile communication
US7230574B2 (en) Oriented PIFA-type device and method of use for reducing RF interference
US6342859B1 (en) Ground extension arrangement for coupling to ground means in an antenna system, and an antenna system and a mobile radio device having such ground arrangement
US5600341A (en) Dual function antenna structure and a portable radio having same
JP2002517925A (en) antenna
EP1476919A1 (en) ORIENTED PIFA−TYPE DEVICE AND METHOD OF USE FOR REDUCING RF INTERFERENCE
EP1069642A2 (en) Antenna assembly and portable radio apparatus
KR19990068163A (en) Built-in antenna for radio communication terminals
US20090322633A1 (en) Small monopole antenna having loop element included feeder
WO1998058423A1 (en) Wide-angle circular polarization antenna
US6836246B1 (en) Design of single and multi-band PIFA
GB2326531A (en) Capacitive coupling for combined helical and whip antenna
JP3318475B2 (en) Common antenna
JP3301897B2 (en) Antenna device
JP3030590B2 (en) Flat antenna
JP3122017B2 (en) Composite antenna device
WO2001026181A1 (en) Single and multiband quarter wave resonator
WO2001020716A1 (en) Antenna arrangement and a method for reducing size of a whip element in an antenna arrangement
JP3510961B2 (en) Wide-angle circularly polarized antenna
JP3318474B2 (en) Shared antenna and mobile radio

Legal Events

Date Code Title Description
FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20080426

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090426

Year of fee payment: 7

LAPS Cancellation because of no payment of annual fees