JPH0918227A - Radio device - Google Patents
Radio deviceInfo
- Publication number
- JPH0918227A JPH0918227A JP7163401A JP16340195A JPH0918227A JP H0918227 A JPH0918227 A JP H0918227A JP 7163401 A JP7163401 A JP 7163401A JP 16340195 A JP16340195 A JP 16340195A JP H0918227 A JPH0918227 A JP H0918227A
- Authority
- JP
- Japan
- Prior art keywords
- reflector
- wireless device
- antenna
- housing
- base station
- 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
Landscapes
- Aerials With Secondary Devices (AREA)
- Transmitters (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は無線装置、特に自動車・
携帯電話、無線ＬＡＮ、家庭用コードレス電話等の移動
体通信サービスにおける基地局（親機）用無線装置に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless device, particularly an automobile.
The present invention relates to a wireless device for a base station (base unit) in a mobile communication service such as a mobile phone, a wireless LAN, and a home cordless phone.
【０００２】[0002]
【従来の技術】将来の携帯電話等の移動体通信サービス
では、需要の増大に対応できる様に周波数資源の有効利
用をさらに進める必要がある。この手段の一つとして同
一周波数の繰り返し利用率を高くできるマイクロセル化
の導入が考えられている。マイクロセルでは一つの基地
局がカバーするサービスエリアは数百メートル程度と狭
い。このため、空中線利得も通常のセル（サービスエリ
ア数キロメートル）より低くて良く、空中線長も短くて
済む。従って、基地局用無線装置では空中線と送受信機
等を含む筐体とを一体化して構成できる。2. Description of the Related Art In future mobile communication services such as mobile phones, it is necessary to further promote the effective use of frequency resources so as to meet the increasing demand. As one of the means for this, introduction of a microcell structure capable of increasing the repetition utilization rate of the same frequency is considered. In a micro cell, the service area covered by one base station is as small as several hundred meters. Therefore, the antenna gain may be lower than that of a normal cell (a few kilometers of service area), and the antenna length may be short. Therefore, in the base station wireless device, the antenna and the housing including the transceiver can be integrated.
【０００３】図９は、基地局用無線装置を示す。図９の
符号１は基地局用無線装置の筐体を表し、符号２と３は
空中線を表す。符号２と３の空中線は同一の特性を有し
ており、ダイバーシチ送受信のために装備される。図１
１は、基地用無線装置の筐体１内の回路構成の一例を示
すもので、空中線２は共通増幅器８に連結され、共通増
幅器８は、変復調器９を介して音声処理装置１０を基地
局制御装置１１に連結される。図１２は、基地局用無線
装置の筐体１内の回路構成の他の例を示すもので、空中
線２は共用器１２に連結され、共用器１２は送受信装置
１３に連結され、送受信装置１３は基地局制御装置１１
に連結される。FIG. 9 shows a base station radio apparatus. Reference numeral 1 in FIG. 9 represents a housing of the base station wireless device, and reference numerals 2 and 3 represent antennas. Antennas 2 and 3 have the same characteristics and are equipped for diversity transmission and reception. FIG.
1 shows an example of a circuit configuration in a housing 1 of a base station radio apparatus. An antenna 2 is connected to a common amplifier 8. The common amplifier 8 connects a voice processing apparatus 10 via a modulator / demodulator 9 to a base station. It is connected to the control device 11. FIG. 12 shows another example of the circuit configuration in the housing 1 of the base station wireless device. The antenna 2 is connected to the duplexer 12, the duplexer 12 is connected to the transceiver 13, and the transceiver 13 Is the base station controller 11
Linked to
【０００４】この基地局用無線装置は屋外では信号機、
電話ボックス、あるいはビルの壁面等、また、屋内では
天井、壁等に設置される。符号２の空中線は、通常は基
地局を中心とした全ての方向からの電波を効率良く受信
するために、水平面内において図１０の一点鎖線Ｅ1に
示す様な無指向性を有している。基地局用無線装置を周
囲に障害物が無く、見通しの良い場所に設置する場合に
は、無指向性は効果的である。しかしながら、上記基地
局用無線装置を例えばビルの壁面に設置する場合には、
以下の様な問題が生じる。This base station radio apparatus is a traffic light outdoors.
It is installed on the telephone box, the wall of the building, etc., or indoors, on the ceiling, wall, etc. The antenna 2 is usually non-directional as shown by the one-dot chain line E 1 in FIG. 10 in the horizontal plane in order to efficiently receive radio waves from all directions centering on the base station. . The omnidirectionality is effective when the wireless device for the base station is installed in a place where there is no obstacle around and there is good visibility. However, when the base station wireless device is installed on a wall surface of a building, for example,
The following problems occur.
【０００５】図１０に示す無指向性の場合、放射電力の
約半分が符号７の壁面に向けて放射される。この放射電
力は符号７の壁面がコンクリート等の場合、一部が壁面
内に吸収され熱損失となる。また、残りの放射電力は壁
面で反射され、これが空中線から直接放射される電波と
干渉し、放射指向性を劣化させる。その劣化の程度は空
中線と壁面間の距離に応じて、複雑に変化する。In the omnidirectional case shown in FIG. 10, about half of the radiated power is radiated toward the wall of the reference numeral 7. When the wall surface of reference numeral 7 is concrete or the like, a part of this radiated power is absorbed in the wall surface and becomes a heat loss. Further, the remaining radiated power is reflected by the wall surface, which interferes with the radio waves directly radiated from the antenna and deteriorates the radiation directivity. The degree of the deterioration changes intricately according to the distance between the antenna and the wall surface.
【０００６】上記の様に図９の基地局用無線装置は周囲
に障害物が無く、見通しの良い場所に設置する場合は問
題無いが、壁面等の近くに設置する場合には空中線の放
射電力の損失、及び、放射指向性の劣化という課題が生
じる。As described above, the base station radio apparatus shown in FIG. 9 has no obstacles in its surroundings, and there is no problem when it is installed in a place with good visibility, but when it is installed near a wall surface or the like, the radiated power of the antenna is radiated. And the radiation directivity are degraded.
【０００７】例えば、特開昭５４−１１４０６６号公報
は反射板を開閉自在とした無線装置を開示するが、これ
はいわゆる開口面アンテナに関するものであって、反射
板を開くことによって、送受信が可能となるものであ
る。また、特開平５−１９９０２８号公報は背面アンテ
ナの周囲に反射板を回動させる構造を開示するが、これ
はアンテナを衛星に追従させるためのものである。さら
に特開平６−２８４０２１号公報無線装置の周囲に金属
反射板を配置するものが示されているが、これは無線装
置全体を反射板で囲うものである。For example, Japanese Laid-Open Patent Publication No. 54-114066 discloses a wireless device in which a reflector can be opened and closed. This relates to a so-called aperture antenna, and transmission / reception can be performed by opening the reflector. It will be. Further, Japanese Patent Laid-Open No. 5-199028 discloses a structure in which a reflector is rotated around a rear antenna, but this is for causing the antenna to follow a satellite. Further, Japanese Patent Laid-Open No. 6-284021 discloses a wireless device in which a metal reflector is arranged around the wireless device, which surrounds the entire wireless device with a reflector.
【０００８】[0008]
【発明が解決しようとする課題】本発明は、設置環境に
よらず良好な指向特性を有する基地局用無線装置を提供
することを目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to provide a base station radio apparatus having good directional characteristics regardless of the installation environment.
【０００９】[0009]
【課題を解決するための手段】本発明の無線装置は、無
線通信手段を有する回路を装備する箱形の筐体と、筐体
に取り付けられて筐体から突出する空中線と、筐体に支
持されて空中線の背面に固定される位置と空中線の背面
から退避する位置とに選択的に移動可能な反射器とを備
える。反射器は筐体内部に収納、叉は、筐体周囲に取付
けられており、当該反射器を引き出す、叉は、回転させ
ることにより、空中線の背面に当該反射器を配置した
り、そこから撤去できる機構を備えることを特徴とす
る。A wireless device according to the present invention includes a box-shaped housing equipped with a circuit having wireless communication means, an antenna attached to the housing and projecting from the housing, and supported by the housing. And a reflector that is selectively movable between a position fixed to the back surface of the antenna and a position retracted from the back surface of the antenna. The reflector is housed inside the housing, or is attached around the housing, and the reflector is pulled out or rotated to place the reflector on the back surface of the antenna or remove it. It is characterized in that it is provided with a mechanism that can
【００１０】そして、反射器は導体平板、導体金網、導
体格子、又は導体棒で構成される。また、筐体の前面に
空中線を配置し、かつ、当該筐体の前面を導体材料で構
成し、反射板を形成することもできる。さらに、この空
中線を、回転することによって筐体の前面から側面へ移
動できる機構を備えるものである。The reflector is composed of a conductor plate, a conductor wire mesh, a conductor grid, or a conductor rod. It is also possible to dispose the antenna on the front surface of the housing and configure the front surface of the housing with a conductive material to form the reflector. Further, the antenna is provided with a mechanism that can be moved from the front surface to the side surface of the housing by rotating.
【００１１】[0011]
【作用】この無線装置は、反射器が筐体内部に収納、又
は、筐体周囲に取付けられた状態では、空中線単体の特
性となるので、水平面内で無指向性を有する。反射器を
引き出したり、又は、回転させることによって、空中線
の背面に反射器を配置した状態では、反射器付き空中線
として機能するので、有指向性となる。このため、ビル
の壁面等の設置環境の影響を受け難くくなる。さらに、
反射器を押し込んだり、又は、逆回転させることにより
空中線の背面側から撤去すれば、再び無指向性に戻る。When the reflector is housed inside the housing or attached around the housing, this wireless device has the characteristics of the antenna alone, and therefore has no omnidirectionality in the horizontal plane. When the reflector is arranged on the back surface of the antenna by pulling out or rotating the reflector, it functions as an antenna with a reflector, and thus becomes directional. Therefore, it is less likely to be affected by the installation environment such as the wall surface of the building. further,
If the reflector is removed from the back side of the antenna by pushing it in or rotating it in the reverse direction, it becomes non-directional again.
【００１２】そして、筐体の前面に空中線を配置し、か
つ、筐体の前面を導体材料で構成し、反射板を形成する
ことにより空中線は反射器付き空中線として機能するの
で、有指向性となる。このため、ビルの壁面等の設置環
境の影響を受け難くなる。さらにこの空中線を回転する
ことによって筐体の前面から側面へ移動することにより
反射器無し空中線を形成できるので、無指向性を実現で
きる。見通しの良い場所、または、ビルの壁面等のいず
れにも適用できる基地局用無線装置を実現できる。By disposing the antenna on the front surface of the housing, forming the front surface of the housing with a conductor material, and forming a reflector, the antenna functions as an antenna with a reflector. Become. Therefore, it is less likely to be affected by the installation environment such as the wall surface of the building. Further, by rotating this antenna, the antenna without reflector can be formed by moving from the front surface to the side surface of the housing, so that omnidirectionality can be realized. It is possible to realize a wireless device for a base station which can be applied to a place with good visibility or a wall surface of a building.
【００１３】[0013]
【実施例】以下、図面を参照して本発明を詳細に説明す
る。図１は、本発明の無線装置の一実施例を示す説明図
である。符号１は無線装置の筐体を表しており、この中
には図１１，図１２に示した無線通信を行うために構成
された回路が収められている。これら以外にも無線筐体
の中に収められる回路構成には種々のものが考えられ
る。符号４０は反射器として機能する導体平板であっ
て、この反射器４０は符号１の筐体に設けられたガイド
により案内されて、筐体１から引き出したり、収納でき
る機構を持つ。この基地局用無線装置を見通しの良い場
所に設置する場合は反射器を収納しておくことで、符号
２又は３の空中線単体の無指向性が得られる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings. FIG. 1 is an explanatory diagram showing an embodiment of a wireless device of the present invention. Reference numeral 1 represents a housing of the wireless device, and the circuit configured to perform the wireless communication shown in FIGS. 11 and 12 is housed therein. In addition to these, various circuit configurations are conceivable in the wireless housing. Reference numeral 40 is a conductor flat plate that functions as a reflector, and the reflector 40 has a mechanism that can be pulled out from the housing 1 or housed by being guided by a guide provided in the housing of reference numeral 1. When the base station wireless device is installed in a place with good visibility, the reflector is housed so that omnidirectionality of the antenna alone (reference numeral 2 or 3) can be obtained.
【００１４】一方、ビル等の壁面の近くに設置する場合
は、反射器４０を引き出すことにより、反射器付き空中
線を形成できる。符号２又は３の空中線と導体平板との
距離Ｄ1を約１／４波長に選べば、図２の鎖線Ｅ2に示す
様な単方向性の有指向性が得られる。また、この距離Ｄ
1の設定を変えれば、片側に２つの異なるビームを出す
ことも可能である。例えば、セルラー方式の移動体通信
の場合の８００メガヘルツの周波数帯にあっては、距離
Ｄ1は８０ｍｍ程度となり、ＰＨＳの場合の１．９ギガ
ヘルツの周波数帯にあっては、距離Ｄ1は４０ｍｍ程度
となる。On the other hand, when installing near a wall surface of a building or the like, by pulling out the reflector 40, an antenna with a reflector can be formed. If the distance D 1 between the antenna 2 or 3 and the conductive flat plate is selected to be about ¼ wavelength, the unidirectional directional characteristic as shown by the chain line E 2 in FIG. 2 can be obtained. Also, this distance D
By changing the setting of 1 , it is possible to emit two different beams on one side. For example, the distance D 1 is about 80 mm in the frequency band of 800 MHz in the case of cellular mobile communication, and the distance D 1 is 40 mm in the frequency band of 1.9 GHz in the case of PHS. It will be about.
【００１５】こうした有指向性は送信の場合なら目的方
向以外への電波の放射が減り、また、受信の場合なら目
的方向以外からの電波を受信し難い特性を持つ。従っ
て、反射器の裏側が壁面を向く様に基地局用無線装置を
設置することによって、必要な方向だけに指向性を持た
せると共に、設置環境による指向性の変動を回避するこ
とが可能になる。The directional characteristic has a characteristic that the radiation of radio waves in directions other than the target direction is reduced in the case of transmission, and the radio waves from directions other than the target direction are difficult to receive in the case of reception. Therefore, by installing the wireless device for the base station so that the back side of the reflector faces the wall surface, it becomes possible to give directivity only in the necessary direction and avoid the variation of the directivity due to the installation environment. .
【００１６】図３は本発明の無線装置の他の実施例を示
す。反射器５０は針金等を折り曲げて構成する枠体であ
って、この枠体５０に導体金網５２を張り付けてある。
この枠体５０は、ヒンジ５４を介して筐体１にとりつけ
られる。枠体５０は、矢印方向に１８０度回動し、筐体
１の裏面に格納される位置と、空中線の背後に起立した
位置に保持される。反射器５０を半回転させることによ
って、符号２又は３の空中線の背面に反射器を容易に配
置できるので、有指向性を実現できる。さらに、反射器
として導体金網を使用することにより、基地局用無線装
置の軽量化と耐風圧特性を向上できる。FIG. 3 shows another embodiment of the wireless device of the present invention. The reflector 50 is a frame body formed by bending a wire or the like, and a conductor wire net 52 is attached to the frame body 50.
The frame 50 is attached to the housing 1 via a hinge 54. The frame 50 rotates 180 degrees in the direction of the arrow and is held at a position where it is stored on the back surface of the housing 1 and a position where it stands upright behind the antenna. By rotating the reflector 50 a half turn, the reflector can be easily arranged on the back surface of the antenna of reference numeral 2 or 3, so that directional characteristics can be realized. Further, by using the conductor wire mesh as the reflector, it is possible to reduce the weight and improve the wind pressure resistance of the base station wireless device.
【００１７】図４は本発明の無線装置の他の実施例を示
す。反射器６０は導体金網により構成され、筐体１の裏
側にスライド機構６２を介して取り付けられる。反射器
６０は符号２又は３の空中線の背面に別々に配置され、
それぞれ別個に昇降させることができる。反射器の大き
さが小さいので、軽量化と耐風圧特性をさらに向上でき
る。また、図４に示した様に、符号２の空中線は反射器
無し、符号３の空中線は反射器付きとすれば、２つの空
中線の指向性を相異なるものに設定できる。これによっ
て、図３の様な同一の指向性を有する空中線を並列配置
して構成する空間ダイバーシチ効果だけでなく、指向性
ダイバーシチ効果も得られる。FIG. 4 shows another embodiment of the wireless device of the present invention. The reflector 60 is composed of a conductive wire mesh and is attached to the back side of the housing 1 via a slide mechanism 62. The reflectors 60 are separately arranged on the backside of the antennas 2 or 3,
Each can be raised and lowered independently. Since the size of the reflector is small, it is possible to further reduce the weight and improve the wind pressure resistance. Further, as shown in FIG. 4, if the antenna of reference numeral 2 has no reflector and the antenna of reference numeral 3 has a reflector, the directivity of the two antennas can be set differently. As a result, not only the space diversity effect formed by arranging antennas having the same directivity in parallel as shown in FIG. 3 but also the directional diversity effect can be obtained.
【００１８】図５は本発明の無線装置の他の実施例を示
す。反射器７０は、導体格子７２により構成される板状
のもので、支持部７４を介して筐体１に対して回動自在
に支持される。この反射器７０は、空中線２，３に対し
て別個に設けられ、９０度回動することによって、筐体
１の裏面の格納位置と空中線２，３の背面に起立する位
置に選択的に位置決めされる。放射電界の偏波方向と導
体格子方向を一致させ、かつ、導体格子の格子間隔を１
／１０波長以下に選べば、反射器として機能するので、
図４の導体金網に比べ、基地局用無線装置の軽量化と耐
風圧特性をさらに向上できる。FIG. 5 shows another embodiment of the wireless device of the present invention. The reflector 70 is a plate-shaped member composed of a conductor grid 72, and is rotatably supported with respect to the housing 1 via a support portion 74. The reflector 70 is provided separately for the antennas 2 and 3, and is rotated 90 degrees to selectively position it at the storage position on the back surface of the housing 1 and the position standing on the back surface of the antennas 2 and 3. To be done. Match the polarization direction of the radiated electric field with the conductor grid direction, and set the grid spacing of the conductor grid to 1
If you select / 10 wavelength or less, it will function as a reflector.
Compared with the conductor wire net shown in FIG. 4, the weight and wind pressure resistance of the base station wireless device can be further improved.
【００１９】図６は本発明の無線装置の他の実施例を示
す。符号８０は反射器として機能する導体棒を表してお
り、符号１の筐体上面側に回転機構８２を介して取り付
ける。この装置によっても、反射器８０は符号２又は３
の空中線の背面に別々に配置できる。導体棒の長さを空
中線長より長く選べば反射器として機能するが、後方へ
の指向性の回り込みは図５よりも増加する。図５の導体
格子に比べ、基地局用無線装置の軽量化と耐風圧特性を
さらに向上でき、低コスト化にも効果がある。FIG. 6 shows another embodiment of the wireless device of the present invention. Reference numeral 80 represents a conductor rod that functions as a reflector, and is attached to the upper surface side of the housing of reference numeral 1 via a rotation mechanism 82. Also with this device, the reflector 80 has a reference numeral 2 or 3
Can be placed separately on the back of the antenna. If the length of the conductor rod is selected to be longer than the antenna length, it functions as a reflector, but the wraparound of the directivity toward the rear is increased as compared with FIG. Compared with the conductor grid shown in FIG. 5, the base station wireless device can be further reduced in weight and wind pressure resistance, which is effective for cost reduction.
【００２０】図７は本発明の無線装置の他の実施例を示
す。符号１００は基地局用無線装置の筐体を表し、符号
１２０と１３０は空中線を表す。筐体１００の空中線側
の表面１１０は金属等の導電材料で構成され、反射器と
して機能する。本発明により反射器付き空中線を、筐体
の高さを増すことなくコンパクトに実現できる。この指
向性は有指向性なので、壁面等への設置に適した基地局
用無線装置を実現できる。FIG. 7 shows another embodiment of the wireless device of the present invention. Reference numeral 100 represents a housing of the base station wireless device, and reference numerals 120 and 130 represent antennas. The antenna-side surface 110 of the housing 100 is made of a conductive material such as metal and functions as a reflector. According to the present invention, an antenna with a reflector can be realized compactly without increasing the height of the housing. Since this directivity is directional, a base station wireless device suitable for installation on a wall surface or the like can be realized.
【００２１】図８は本発明の無線装置の他の実施例を示
す。符号１００は基地局用無線装置の筐体を表す。符号
１２０と１３０の空中線は回転機構１４０を介して符号
１００の筐体に取り付ける。空中線１２０，１３０を筐
体前面１１０に配置した時は、図７と同じ反射器付き空
中線となり、有指向性を有する。従って、壁面等への設
置に適した基地局用無線装置を実現できる。一方、空中
線１２０，１３０を筐体側面側に回動して配置した時
は、筐体１００の影になる方向を除けば、無指向性に近
い特性を実現できる。筐体１００の影になる方向は、反
対方向を向く空中線１２０，１３０によって、相補的に
カバーできる。従って、見通しの良い場所に適した基地
局用無線装置を実現できる。FIG. 8 shows another embodiment of the wireless device of the present invention. Reference numeral 100 represents a housing of the base station wireless device. The antennas 120 and 130 are attached to the housing 100 by a rotating mechanism 140. When the antennas 120 and 130 are arranged on the front surface 110 of the housing, the antenna is the same as that shown in FIG. 7 and has a directional characteristic. Therefore, a base station wireless device suitable for installation on a wall surface or the like can be realized. On the other hand, when the antennas 120 and 130 are arranged by rotating to the side surface of the housing, a characteristic close to omnidirectionality can be realized except for the direction in which the housing 100 is shaded. The shadowed direction of the housing 100 can be complementarily covered by antennas 120, 130 pointing in opposite directions. Therefore, it is possible to realize a base station radio apparatus suitable for a place with good visibility.
【００２２】[0022]
【発明の効果】本発明によれば、反射器を筐体から引き
出したり、収納することにより、無指向性と有指向性を
容易に切り換えることが可能である。従って、見通しの
良い場所、又は、ビルの壁面等の設置環境に応じて、最
適な基地局用無線装置を容易に実現できる。また、反射
器の構造を変更することによって、さらに軽く、耐風圧
特性に優れた基地局用無線装置を提供できる。同時に、
設置環境に適した基地局用無線装置を低コスト化する効
果がある。According to the present invention, it is possible to easily switch between omnidirectional and directional patterns by pulling out or housing the reflector from the housing. Therefore, it is possible to easily realize an optimum base station wireless device according to a place with good visibility or an installation environment such as a wall surface of a building. Further, by changing the structure of the reflector, it is possible to provide a base station wireless device that is lighter and has excellent wind pressure resistance. at the same time,
This has the effect of reducing the cost of the base station wireless device suitable for the installation environment.
【００２３】請求項９の発明によれば、壁面等に設置す
るのに適した基地局用無線装置をコンパクトに実現でき
る。さらに、空中線を筐体の前面と側面に回動する構造
とすることで、コンパクトな基地局用無線装置を壁面等
だけでなく、見通しの良い場所へも適用することができ
る。According to the invention of claim 9, it is possible to realize a compact base station radio apparatus suitable for being installed on a wall surface or the like. Furthermore, by adopting a structure in which the antenna is rotated to the front surface and the side surface of the housing, the compact base station wireless device can be applied not only to the wall surface or the like, but also to a place with good visibility.
【図１】本発明の基地局用無線装置の構成を示す説明
図。FIG. 1 is an explanatory diagram showing a configuration of a base station wireless device of the present invention.
【図２】図１の実施例の反射器付き空中線の指向性を示
す上面図。FIG. 2 is a top view showing the directivity of an antenna with a reflector according to the embodiment of FIG.
【図３】本発明の基地局用無線装置の他の実施例を示す
説明図。FIG. 3 is an explanatory diagram showing another embodiment of the base station wireless device of the present invention.
【図４】本発明の基地局用無線装置の更に他の実施例を
示す説明図。FIG. 4 is an explanatory diagram showing still another embodiment of the base station wireless device of the present invention.
【図５】本発明の基地局用無線装置の更に他の実施例を
示す説明図。FIG. 5 is an explanatory diagram showing still another embodiment of the base station wireless device of the present invention.
【図６】本発明の基地局用無線装置の更に他の実施例を
示す説明図。FIG. 6 is an explanatory diagram showing still another embodiment of the base station wireless device of the present invention.
【図７】本発明の基地局用無線装置の更に他の実施例を
示す説明図。FIG. 7 is an explanatory diagram showing still another embodiment of the base station wireless device of the present invention.
【図８】本発明の基地局用無線装置の更に他の実施例を
示す説明図。FIG. 8 is an explanatory diagram showing still another embodiment of the base station wireless device of the present invention.
【図９】従来の基地局用無線装置の説明図。FIG. 9 is an explanatory diagram of a conventional base station wireless device.
【図１０】従来の基地局用無線装置の無指向性空中線の
指向性を示す上面図。FIG. 10 is a top view showing the directivity of an omnidirectional antenna of a conventional base station radio apparatus.
【図１１】基地局用無線装置の筐体内の回路構成の一構
成図。FIG. 11 is a configuration diagram of a circuit configuration in a housing of a base station wireless device.
【図１２】基地局用無線装置の筐体内の回路構成の別の
構成例FIG. 12 is another configuration example of the circuit configuration in the housing of the base station wireless device.
１ 基地局用無線装置の筐体 ２ 基地局用無線装置の空中線１ ３ 基地局用無線装置の空中線２ ７ 壁面 ８ 共通増幅器 ９ 変復調器 １０ 音声処理装置 １１ 基地局制御装置 １２ 共用器 １３ 送受信装置 ４０ 平板状反射器 ５０，６０ 金網状反射器 ７０ 格子状反射器 ８０ 棒状反射器 １１０ 前面反射板 １２０，１３０ 空中線 1 Base Station Radio Equipment Case 2 Antenna for Base Station Radio Equipment 1 3 Antenna for Base Station Radio Equipment 2 7 Wall Surface 8 Common Amplifier 9 Modulator / Demodulator 10 Voice Processor 11 Base Station Controller 12 Duplexer 13 Transmitter / Receiver 40 Flat Reflector 50, 60 Wire Mesh Reflector 70 Lattice Reflector 80 Rod Reflector 110 Front Reflector 120, 130 Antenna
Claims (10)
形の筐体と、筐体に取り付けられて筐体から突出する空
中線と、筐体に支持されて空中線の背面に固定される位
置と空中線の背面から退避する位置とに選択的に移動可
能な反射器とを備えてなる無線装置。1. A box-shaped housing equipped with a circuit having wireless communication means, an antenna attached to the housing and protruding from the housing, and a position supported by the housing and fixed to the back surface of the antenna. A wireless device comprising a reflector that can be selectively moved to a position retracted from the back of the antenna.
る請求項１記載の無線装置。2. The wireless device according to claim 1, wherein the reflector is a flat conductor plate.
る請求項１記載の無線装置。3. The wireless device according to claim 1, wherein the reflector is a conductor wire mesh.
る請求項１記載の無線装置。4. The wireless device according to claim 1, wherein the reflector is a conductor grating.
請求項１記載の無線装置。5. The wireless device according to claim 1, wherein the reflector is a conductor rod.
行する方向に摺動自在に支持されることを特徴とする請
求項２乃至５のいずれかに記載の無線装置。6. The wireless device according to claim 2, wherein the reflector is slidably supported with respect to the housing in a direction parallel to the axis of the antenna.
行する軸線に直交する軸線を中心として回動自在に支持
されることを特徴とする請求項２乃至５のいずれかに記
載の無線装置。7. The reflector according to claim 2, wherein the reflector is supported rotatably with respect to the housing about an axis orthogonal to an axis parallel to the axis of the antenna. Wireless device.
行する平面内の支点を中心として該平面内で回動自在に
支持されることを特徴とする請求項２乃至５のいずれか
に記載の無線装置。8. The reflector is rotatably supported in the plane about a fulcrum in a plane parallel to the axis of the antenna with respect to the housing. The wireless device according to 1.
形の筐体と、筐体の前面板を導体材料で構成することに
より形成される反射板と、該筐体の前面板から突出する
空中線とを備えてなる無線装置。9. A box-shaped casing equipped with a circuit having wireless communication means, a reflector formed by forming a front plate of the casing from a conductive material, and a projecting plate from the front plate of the casing. A wireless device comprising an antenna.
向する位置に回動自在に支持されることを特徴とする請
求項９記載の無線装置。10. The wireless device according to claim 9, wherein the antenna is rotatably supported at a position facing the front surface and the side surface with respect to the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7163401A JPH0918227A (en) | 1995-06-29 | 1995-06-29 | Radio device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7163401A JPH0918227A (en) | 1995-06-29 | 1995-06-29 | Radio device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0918227A true JPH0918227A (en) | 1997-01-17 |
Family
ID=15773200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7163401A Pending JPH0918227A (en) | 1995-06-29 | 1995-06-29 | Radio device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0918227A (en) |
Cited By (6)
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|---|---|---|---|---|
| WO2000030207A1 (en) * | 1998-11-17 | 2000-05-25 | Nec Corporation | Portable terminal device having reflection board |
| JP2003008333A (en) * | 2001-06-20 | 2003-01-10 | Maspro Denkoh Corp | Antenna apparatus |
| US7061436B2 (en) | 2003-07-01 | 2006-06-13 | Buffalo Inc. | Antenna device |
| JP2009273011A (en) * | 2008-05-09 | 2009-11-19 | Denso Wave Inc | Portable rfid reader/writer |
| JP2012119979A (en) * | 2010-12-01 | 2012-06-21 | Denso Wave Inc | Variable directional antenna device |
| JP2015145848A (en) * | 2014-02-04 | 2015-08-13 | 古野電気株式会社 | radar antenna |
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| JP2012119979A (en) * | 2010-12-01 | 2012-06-21 | Denso Wave Inc | Variable directional antenna device |
| JP2015145848A (en) * | 2014-02-04 | 2015-08-13 | 古野電気株式会社 | radar antenna |
| US9910147B2 (en) | 2014-02-04 | 2018-03-06 | Furuno Electric Co., Ltd. | Radar antenna |
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