JPH0738599B2 - Portable satellite communication device - Google Patents
Portable satellite communication deviceInfo
- Publication number
- JPH0738599B2 JPH0738599B2 JP62006367A JP636787A JPH0738599B2 JP H0738599 B2 JPH0738599 B2 JP H0738599B2 JP 62006367 A JP62006367 A JP 62006367A JP 636787 A JP636787 A JP 636787A JP H0738599 B2 JPH0738599 B2 JP H0738599B2
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- receiving
- transmission
- transmitting
- plane
- 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 - Lifetime
Links
- 238000004891 communication Methods 0.000 title claims description 30
- 230000005540 biological transmission Effects 0.000 claims description 40
- 230000003321 amplification Effects 0.000 claims description 7
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 7
- 238000003860 storage Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Transceivers (AREA)
- Radio Relay Systems (AREA)
Description
【発明の詳細な説明】 ［技術分野］ 本発明は、可搬型衛星通信装置に関するものである。TECHNICAL FIELD The present invention relates to a portable satellite communication device.
［背景技術］ 衛星通信回線は、地上回線に関係なく自由に、どの地点
からも容易に利用できるために広く用いられている。特
に、自然災害により地上系通信網が破壊された場合に
は、現地で衛星通信回線を通じて迅速な復旧が可能とな
り、また、臨時に通信回線を利用できるという利点のた
め、可搬型衛星通信装置（地上局）の効用は大きい。し
かしながら、通信衛生は消費電力、チャンネル数などの
関係で送信電力が低く、また、アンテナも衛星打ち上げ
時の制約などにより大型、高利得のものが使用できない
ため、地上局側の送信及び受信アンテナは大型となり、
地上局の送信電力も大きくする必要があった。[Background Art] Satellite communication lines are widely used because they can be used freely and easily from any point regardless of terrestrial lines. In particular, when the terrestrial communication network is destroyed due to a natural disaster, it is possible to quickly restore the satellite communication line locally, and the temporary communication line can be used. The effect of the ground station) is great. However, communication hygiene has low transmission power due to power consumption and the number of channels, and since antennas of large size and high gain cannot be used due to restrictions at the time of satellite launch, the transmission and reception antennas on the ground station side are not available. Becomes large,
It was also necessary to increase the transmission power of the ground station.
現在使用されている通信衛星について具体的な数値例を
挙げると、上り回線周波数14.0〜14.5GHz、下り回線周
波数12.25〜12.75GHz、下り回線の実効輻射電力50dBW、
上り及び下り回線用パラボラアンテナ径0.6〜2.5m、上
り回線送信出力１〜3Wとなっている。上記径のパラボラ
アンテナの利得は、上り回線で36.8〜49.2dB、下り回線
で35.7〜48.1dBに相当する。ただし、アンテナ能率を60
％として計算している。Specific examples of numerical values of communication satellites currently in use are: uplink frequency 14.0 to 14.5 GHz, downlink frequency 12.25 to 12.75 GHz, downlink effective radiation power 50 dBW,
The parabolic antenna diameter for the up and down lines is 0.6 to 2.5m, and the up transmission power is 1 to 3W. The gain of the parabolic antenna with the above diameter corresponds to 36.8 to 49.2 dB on the uplink and 35.7 to 48.1 dB on the downlink. However, the antenna efficiency is 60
Calculated as%.
いま、必要最小限度の利得37dBを平面アンテナで実現し
ようとすると、0.46m角程度の寸法で実現可能である
（アンテナ能率を80％として計算）。Now, if we try to realize the minimum required gain of 37 dB with a planar antenna, it is possible to achieve it with a size of about 0.46 m square (calculated assuming that the antenna efficiency is 80%).
直径60cm程度のパラボラアンテナは、一次放射器が外部
に突出しているため、比較的大きな容積を占めるが、50
cm角程度の寸法の平面アンテナは、突出部がないため、
厚さ10mm以下で実現可能である。従って、平面アンテナ
を使用した小型衛星通信装置を構成することができる
が、実用化例はない。また、小型パラボラアンテナを扇
状に小区分し、これを折り畳むことによって、移動時
は、携帯に便利な寸法とし、使用時には必要な寸法のパ
ラボラアンテナを組み立てて構成するようにした移動装
置は実用化されているが、鏡面精度を得ることが困難
で、利得が低下するという問題があった。A parabolic antenna with a diameter of about 60 cm occupies a relatively large volume because the primary radiator projects to the outside.
Since the planar antenna with a size of about cm cm has no protruding part,
It can be realized with a thickness of 10 mm or less. Therefore, a small satellite communication device using a plane antenna can be constructed, but there is no practical application example. In addition, a small parabolic antenna is divided into a fan shape, and by folding this, a mobile device with a size convenient for carrying when moving and a parabolic antenna of the required size assembled when used is put to practical use. However, there is a problem that it is difficult to obtain mirror surface accuracy and the gain is reduced.
［発明の目的］ 本発明は、上述の点に鑑みて提供したものであって、小
型で可搬性が良好であり、且つアンテナ利得の高い可搬
型衛星通信装置を提供することを目的とするものであ
る。[Object of the Invention] The present invention is provided in view of the above points, and an object of the present invention is to provide a portable satellite communication device that is small in size, has good portability, and has a high antenna gain. Is.
［発明の開示］ （構成） 本発明は、少なくとも１組の受信用平面アンテナと１組
の送信用平面アンテナとを折り畳み自在に枢着し、上記
受信用平面アンテナの背面には少なくとも受信用平面ア
ンテナにて受信した信号を増幅する初段の受信増幅手段
を配置し、送信用平面アンテナの背面には少なくとも送
信用平面アンテナより送信する信号を増幅する終段の送
信増幅手段を配置することで、突出部のない受信用平面
アンテナと送信用平面アンテナとを折り畳み自在として
小型にして可搬することができ、また、受信用平面アン
テナの背面には少なくとも受信部の初段回路を配置し、
送信用平面アンテナの背面には少なくとも送信部の終段
回路を配置して受信用平面アンテナ及び送信用平面アン
テナとそれぞれの増幅手段との距離を短くでき、各アン
テナへの給電部における損失を減少させて、高効率化を
図ったことを特徴とするものである。DISCLOSURE OF THE INVENTION (Structure) According to the present invention, at least one pair of receiving plane antennas and one pair of transmitting plane antennas are foldably pivotably mounted, and at least a receiving plane is provided on the back surface of the receiving plane antenna. By arranging the first stage reception amplification means for amplifying the signal received by the antenna, and by arranging the last stage transmission amplification means for amplifying the signal transmitted from at least the transmission plane antenna on the back surface of the transmission plane antenna, The receiving flat antenna without a protrusion and the transmitting flat antenna can be folded and made compact and portable, and at least the first stage circuit of the receiving portion is arranged on the back surface of the receiving flat antenna,
By arranging at least the final stage circuit of the transmitting unit on the back surface of the transmitting flat antenna, the distance between the receiving flat antenna and the transmitting flat antenna and the respective amplifying means can be shortened, and the loss in the power feeding section to each antenna is reduced. It is characterized by achieving high efficiency.
（実施例１） 以下、本発明の一実施例を図面により説明する。第２図
は本発明の可搬型衛星通信装置を使用した通信システム
の構成図を示すものである。第２図において、端末装置
３と接続され、従来の端局用小型パラボラアンテナ2aを
設けた端局装置２とは通信衛星１を介して、通信統制装
置５と接続され、中央固定局用大型パラボラアンテナ4a
を有する信号処理装置４と衛星通信を行なうようにして
いる。また、本発明の可搬型衛星通信装置６は端末装置
７と接続されており、上記と同様に通信衛星１と衛星通
信を行なうものである。尚、本発明の可搬型衛星通信装
置６は、従来のパラボラアンテナと、それに付随する高
周波信号処理部とを一体化した装置である。Example 1 An example of the present invention will be described below with reference to the drawings. FIG. 2 is a block diagram of a communication system using the portable satellite communication device of the present invention. In FIG. 2, a terminal device 3 connected to a terminal device 3 and a terminal device 2 provided with a conventional small parabola antenna 2a for a terminal device is connected to a communication control device 5 via a communication satellite 1, and a large central fixed station Parabolic antenna 4a
The satellite communication is performed with the signal processing device 4 having the. Further, the portable satellite communication device 6 of the present invention is connected to the terminal device 7 and performs satellite communication with the communication satellite 1 in the same manner as above. The portable satellite communication device 6 of the present invention is a device in which a conventional parabolic antenna and a high-frequency signal processing unit associated therewith are integrated.
第１図は可搬型衛星通信装置６の具体構成例を示すもの
であり、第１図（ａ）は使用時の形態を示し、同図
（ｂ）は折り畳んだ状態を示している。送信用平面アン
テナ９は、パネル状の送信アンテナ収納部８の外表面に
設けられており、また、受信用平面アンテナ11はパネル
状の受信アンテナ収納部10に設けられている。送信アン
テナ収納部８と受信アンテナ収納部10とは折り畳み自在
に枢着してある。ここで、枢着とは、送信アンテナ収納
部８と受信アンテナ収納部10の端部同士を例えば蝶番13
により結合し、蝶番13を支点として両者を回動自在に相
互に取着することである。受信アンテナ収納部10と同形
状の収納体12a内には後述する受信信号処理部12が納装
してあり、受信アンテナ収納部10と収納体12aとは可動
軸17により内側に折り畳み自在に結合されている。収納
体12aの上面には磁針14が設けてある。また、同様に、
送信アンテナ収納部８と同形状に形成された収納体15a
には後述する送信信号処理部15が納装してあり、送信ア
ンテナ収納部８と収納体15aとは可動軸16により内側に
折り畳み自在に結合されている。上記両可動軸16,17は
アンテナ仰角の調整用及びアンテナ自立用に設けられて
いるが、第１図（ｂ）に示すように折り畳む際には、そ
の開き角度を零度とする。こうすることにより、受信ア
ンテナ収納部10と受信信号処理部12を納装した収納体12
aより成る受信部、及び送信アンテナ収納部８と送信信
号処理部15を納装した収納体15aよりなる送信部とを折
り畳み、更に、可動軸13を中心に受信部と送信部とを折
り畳むことができるものである。FIG. 1 shows an example of a concrete configuration of the portable satellite communication device 6, FIG. 1 (a) shows a mode of use, and FIG. 1 (b) shows a folded state. The transmitting plane antenna 9 is provided on the outer surface of the panel-shaped transmitting antenna housing portion 8, and the receiving plane antenna 11 is provided in the panel-shaped receiving antenna housing portion 10. The transmitting antenna housing portion 8 and the receiving antenna housing portion 10 are pivotably attached so as to be foldable. Here, the pivotal connection means that the ends of the transmitting antenna housing 8 and the receiving antenna housing 10 are hinged together, for example.
And the hinge 13 is rotatably attached to each other. A reception signal processing unit 12 to be described later is accommodated in a storage body 12a having the same shape as the reception antenna storage unit 10, and the reception antenna storage unit 10 and the storage body 12a are foldably connected inward by a movable shaft 17. Has been done. A magnetic needle 14 is provided on the upper surface of the storage body 12a. Also, similarly,
Housing 15a formed in the same shape as the transmitting antenna housing 8
A transmission signal processing unit 15, which will be described later, is installed therein, and the transmission antenna storage unit 8 and the storage body 15a are connected by a movable shaft 16 so as to be foldable inward. The movable shafts 16 and 17 are provided for adjusting the elevation angle of the antenna and for self-standing the antenna, but when folded as shown in FIG. 1 (b), the opening angle is set to zero degree. By doing so, the housing 12 in which the receiving antenna housing 10 and the received signal processor 12 are installed
Folding the receiving part composed of a, the transmitting antenna housing part 8 and the transmitting part composed of the housing 15a accommodating the transmission signal processing part 15, and further folding the receiving part and the transmitting part around the movable shaft 13. Is something that can be done.
第２図に示した端末装置７から送出されるベースバンド
信号は、送信信号処理部15でマイクロ波信号に変換さ
れ、送信用平面アンテナ９より送出される。また、ま
た、受信用平面アンテナ11で受信したマイクロ波信号
は、受信信号処理部12でベースバンド信号に変換され
て、第２図に示す端末装置７に至る。。The baseband signal transmitted from the terminal device 7 shown in FIG. 2 is converted into a microwave signal by the transmission signal processing unit 15 and transmitted from the transmitting flat antenna 9. Further, the microwave signal received by the receiving plane antenna 11 is converted into a baseband signal by the reception signal processing unit 12 and reaches the terminal device 7 shown in FIG. .
第３図は、第１図に示した二枚パネル形可搬型衛星通信
装置の電気的構成のブロック図を示すものであり、第３
図において、送信アンテナ収納部８には送信用平面アン
テナ９、終段電力増幅器29、送信系統用電源部（バッテ
リを含む）30を含んでいる。送信信号処理部15には、変
調回路部34、中間周波増幅器33、周波数変換器31、送信
用局部発振器32から構成されており、端末装置７からの
ベースバンド送信信号をマイクロ波信号に変換して終段
電力増幅器29に供給している。FIG. 3 is a block diagram of the electrical configuration of the two-panel portable satellite communication device shown in FIG.
In the figure, the transmitting antenna housing portion 8 includes a transmitting flat antenna 9, a final stage power amplifier 29, and a transmitting system power source portion (including a battery) 30. The transmission signal processing unit 15 includes a modulation circuit unit 34, an intermediate frequency amplifier 33, a frequency converter 31, and a local oscillator 32 for transmission, and converts a baseband transmission signal from the terminal device 7 into a microwave signal. Is supplied to the final stage power amplifier 29.
受信アンテナ収納部10には、受信用平面アンテナ11と、
低雑音増幅器35、受信系統用電源部（バッテリを含む）
36が含まれる。受信信号処理部12は、周波数変換器37、
受信用局部発振器38、中間周波増幅回路39、復調回路部
40等から構成されており、受信したマイクロ波信号をベ
ースバンド受信信号に変換して端末装置７に供給する。
尚、第３図において、可搬型衛星通信装置６と端末装置
７との間は多芯ケーブルで接続され、また、送信アンテ
ナ収納部８と送信信号処理部15との間、及び受信アンテ
ナ収納部10と受信信号処理部12との間は夫々同軸ケーブ
ルで接続してある。電源部30,36を２系統とした理由
は、重量バランスの考慮以外に、一方の電源部が不調と
なった時でも、他方の電源部を予備として利用できるよ
うにするためである。従って、通常、消費電流の多い送
信系統用電源部30を主電源とし、消費電流の少ない受信
系統用電源部36を予備電源として利用できるように、電
源切替手段（図示せず）も設けられている。尚、消費電
流の少ない回路部間は、電源が信号線に重畳されて、相
互に接続されている。The receiving antenna housing 10 includes a receiving flat antenna 11 and
Low noise amplifier 35, power supply unit for receiving system (including battery)
Includes 36. The reception signal processing unit 12 includes a frequency converter 37,
Local oscillator for reception 38, intermediate frequency amplification circuit 39, demodulation circuit section
The received microwave signal is converted to a baseband received signal and supplied to the terminal device 7.
In FIG. 3, the portable satellite communication device 6 and the terminal device 7 are connected by a multi-core cable, and the transmitting antenna storage unit 8 and the transmission signal processing unit 15 and the receiving antenna storage unit are connected. A coaxial cable is connected between the reception signal processing unit 12 and the reception signal processing unit 12. The reason why the power supply units 30 and 36 are two systems is that the other power supply unit can be used as a spare even when one power supply unit is out of order, in addition to considering the weight balance. Therefore, normally, a power supply switching means (not shown) is also provided so that the power supply unit 30 for the transmission system having a large current consumption can be used as the main power supply and the power supply unit 36 for the reception system having a small current consumption can be used as the standby power supply. There is. A power supply is superimposed on the signal line and connected to each other between the circuit units that consume less current.
第３図のような構成とした場合の利点は、アンテナ収納
部8,10にそれぞれ終段電力増幅器29,低雑音増幅器35を
収納できる点である。平面アンテナ9,11を構成部材とし
たアンテナ収納部8,10は、堅牢な構造であるから、箱形
のアンテナ収納部8,10の内部、すなわち、平面アンテナ
9,11の背面部（アンテナ入出力端子からの距離最短位
置）に、終段電力増幅器29あるいは低雑音増幅器35を容
易に収納できるのである。こうすることにより、平面ア
ンテナ9,11と終段電力増幅器29及び低雑音増幅器35との
それぞれの距離を短くしてアンテナ給電部損失を減少さ
せることができるので、省電力、高感度、高効率が実現
できるものである。An advantage of the configuration shown in FIG. 3 is that the final stage power amplifier 29 and the low noise amplifier 35 can be housed in the antenna housing parts 8 and 10, respectively. Since the antenna housing parts 8 and 10 having the planar antennas 9 and 11 as the constituent members have a robust structure, the inside of the box-shaped antenna housing parts 8 and 10, that is, the planar antennas.
The final stage power amplifier 29 or the low noise amplifier 35 can be easily housed in the back surface of 9, 11 (the shortest distance from the antenna input / output terminal). By doing so, it is possible to reduce the distances between the planar antennas 9 and 11 and the final stage power amplifier 29 and the low noise amplifier 35 to reduce the antenna feeding loss, so that power saving, high sensitivity, and high efficiency can be achieved. Can be realized.
（実施例２） 第４図は他の実施例を示し、第４図では第１図の場合と
異なり、平面アンテナを３枚組み合わせて使用してい
る。第４図（ａ）は展開使用状態を示し、第４図（ｂ）
は折り畳んだ状態を示すものである。送信アンテナ収納
部19,27の外表面には送信用平面アンテナ18,26が設けら
れており、受信アンテナ収納部22の外表面には受信用平
面アンテナ21が設けられている。磁針23は通信衛星１の
方向に合わせて設置する際に使用するものである。受信
アンテナ収納部22の両側には、夫々回動軸20,24により
送信用アンテナ収納部19,27が折り畳み自在に結合さ
れ、また、送受信信号処理部を内蔵したパネル25は回動
軸28を介して回動自在に受信アンテナ収納部22と結合さ
れており、展張使用時には、倒れ防止用支柱としても機
能している。第４図（ｂ）に示すように、折り畳んだ状
態では、受信アンテナ収納部22の背面にパネル25が折り
畳まれ、前面に送信アンテナ収納部19,27が折り畳まれ
る。(Embodiment 2) FIG. 4 shows another embodiment. In FIG. 4, unlike the case of FIG. 1, three planar antennas are used in combination. FIG. 4 (a) shows the expanded use state, and FIG. 4 (b).
Indicates a folded state. Transmitting plane antennas 18 and 26 are provided on the outer surfaces of the transmitting antenna housing portions 19 and 27, and receiving plane antenna 21 is provided on the outer surface of the receiving antenna housing portion 22. The magnetic needle 23 is used when the magnetic needle 23 is installed in the direction of the communication satellite 1. On both sides of the receiving antenna housing 22, transmitting antenna housings 19 and 27 are foldably coupled by rotating shafts 20 and 24, respectively, and a panel 25 having a transmission / reception signal processing unit has a rotating shaft 28. It is rotatably connected to the receiving antenna housing portion 22 through, and also functions as a fall-prevention support pillar when using the extension. As shown in FIG. 4 (b), in the folded state, the panel 25 is folded on the back surface of the receiving antenna housing 22 and the transmitting antenna housings 19, 27 are folded on the front surface.
第５図は、第４図に示す構造の可搬型衛星通信装置の電
気的構成を示すブロック図である。第５図中送信アンテ
ナ収納部19,27にはそれぞれ送信用平面アンテナ18,26、
終段電力増幅器43,45、送信用電源部44,46が含まれてい
ること、および受信アンテナ収納部22には、受信用平面
アンテナ21、低雑音増幅器47が含まれていることは第３
図の場合と同様である。ただし、受信系および送信系前
段部用電源部53は、第３図の場合と異なり、重量バラン
スを考慮して送受信信号処理部収納用のパネル25内に収
納されている。また、送信系統の前段部を共用するた
め、第５図では二分配器48を使用している。送信用周波
数変換器49、送信用局部発振器50、送信中間周波数増幅
器51、変調回路部52により、端末装置60からのベースバ
ンド送信信号がマイクロ波送信信号に変換される構成
は、第３図と同様である。また、受信したマイクロ波信
号が受信用周波数変換器54、受信用局部発振器55、受信
中間周波数増幅器56、復調回路部57を介してベースバン
ド受信信号に変換され、端末装置60に至る構成も第３図
と同様である。第４図および第５図のような構成の利点
は、第１図および第３図の場合と異なり、送信用平面ア
ンテナ18,26の開口面積が受信用平面アンテナ21の２倍
となっている点にあり、このことによって、上り回線送
信出力を、第１図の場合の半分にすることが可能とな
る。従って、特に可搬型としたとき問題となる送信系統
終段電源の容量も半減できて、小型、軽量、小電力化が
可能になる。第４図の例では、送信アンテナ収納部19,2
7の外形は、40×55×4cm、受信アンテナ収納部22の外形
は、45×55×3cm、送受信信号処理部収納用のパネル25
の外形は、45×55×4cm程度となり、展開時の外形は、1
25×55×4cm、折り畳み時の外形は、45×55×11cm程
度、全重量7Kgと小型軽量になる。FIG. 5 is a block diagram showing an electrical configuration of the portable satellite communication device having the structure shown in FIG. In FIG. 5, transmitting antenna housings 19 and 27 are provided with transmitting planar antennas 18 and 26, respectively.
Third, the final stage power amplifiers 43 and 45, the transmission power supply units 44 and 46 are included, and the reception antenna housing unit 22 includes the reception plane antenna 21 and the low noise amplifier 47.
It is similar to the case of the figure. However, unlike the case of FIG. 3, the reception system and transmission system front stage power supply unit 53 is housed in the panel 25 for housing the transmission / reception signal processing unit in consideration of the weight balance. Further, in order to share the former stage part of the transmission system, the dual distributor 48 is used in FIG. The transmission frequency converter 49, the transmission local oscillator 50, the transmission intermediate frequency amplifier 51, and the modulation circuit unit 52 convert the baseband transmission signal from the terminal device 60 into a microwave transmission signal as shown in FIG. It is the same. Further, the received microwave signal is converted into a baseband received signal via the reception frequency converter 54, the reception local oscillator 55, the reception intermediate frequency amplifier 56, and the demodulation circuit unit 57, and reaches the terminal device 60. It is similar to FIG. The advantage of the configuration as shown in FIGS. 4 and 5 is that, unlike the case of FIGS. 1 and 3, the aperture area of the transmitting plane antennas 18 and 26 is twice that of the receiving plane antenna 21. The point is that this makes it possible to reduce the uplink transmission output to half that in the case of FIG. Therefore, the capacity of the final stage power supply of the transmission system, which is a problem especially when it is made portable, can be reduced to half, and the size, weight and power consumption can be reduced. In the example of FIG. 4, the transmitting antenna storages 19, 2
The external shape of 7 is 40 × 55 × 4 cm, the external shape of the receiving antenna storage section 22 is 45 × 55 × 3 cm, and the panel 25 for storing the transmit / receive signal processing section
The outer shape is about 45 × 55 × 4 cm, and the outer shape when deployed is 1
25 x 55 x 4 cm, the outer shape when folded is about 45 x 55 x 11 cm, and the total weight is 7 kg, which makes it compact and lightweight.
第４図では、中央に受信用平面アンテナ21を配置して両
側に送信用平面アンテナ18,26を配置した構成を示した
が、送信用平面アンテナを並べて配置し、端に受信用平
面アンテナを配置する構成としても良い。FIG. 4 shows a configuration in which the receiving plane antenna 21 is arranged in the center and the transmitting plane antennas 18 and 26 are arranged on both sides. However, the transmitting plane antennas are arranged side by side and the receiving plane antennas are arranged at the ends. It may be arranged.
また、送信終段部が二系統設けられているので、いずれ
か一方が故障した場合でも、回線は切断されず、回線の
信頼性が高くなるという利点もある。通信回線設計によ
っては、下り回線に高信頼性を要求される場合がある。
この場合は、第５図の構成を変更し、送信系を一系統と
し、受信系を二系統とする構成とすれば良い。Further, since the two transmission end stages are provided, even if one of them fails, the line is not disconnected and the reliability of the line is improved. Depending on the communication line design, the downlink may be required to have high reliability.
In this case, the configuration of FIG. 5 may be modified so that the transmission system has one system and the reception system has two systems.
また、以上の説明では、アンテナパネルが２面および３
面の場合を例に挙げたが、同様にして順次隣接するアン
テナパネルを可動軸で結合して、任意の枚数のアンテナ
パネルを組み合わせて折り畳み可能な構成とすることは
容易にできる。尚、平面アンテナの構成としては、従来
広く知られているマイクロストリップライン型平面アン
テナを使用することで、高利得、薄型となる。Further, in the above description, the antenna panel has two sides and three sides.
Although the case of the surface is taken as an example, it is possible to easily combine adjacent antenna panels with a movable shaft in the same manner and to combine any number of antenna panels to make a foldable structure. As the configuration of the planar antenna, a well-known microstrip line type planar antenna can be used to obtain a high gain and a thin profile.
［発明の効果］ 本発明は上述のように、少なくとも１組の受信用平面ア
ンテナと１組の送信用アンテナとを折り畳み自在に枢着
し、上記受信用平面アンテナの背面には少なくとも受信
用平面アンテナにて受信した信号を増幅する初段の受信
増幅手段を配置し、送信用平面アンテナの背面には少な
くとも送信用平面アンテナより送信する信号を増幅する
終段の送信増幅手段を配置することで、突出部のない受
信用平面アンテナと送信用平面アンテナとを折り畳み自
在として小型にして可搬することができるものであり、
従来のパラボラアンテナを使用した可搬型衛星通信装置
と比較して、突起物がなく、折り畳み収納および展張が
容易で、且つ小型軽量な装置を構成することができる効
果を奏するものである。また、受信用平面アンテナの背
面には少なくとも受信用平面アンテナにて受信した信号
を増幅する初段の受信増幅手段を配置し、送信用平面ア
ンテナの背面には少なくとも送信用平面アンテナより送
信する信号を増幅する終段の送信増幅手段を配置するこ
とによって受信用平面アンテナ及び送信用平面アンテナ
とそれぞれの増幅手段との距離を短くでき、各アンテナ
への給電部における損失を減少させて、高効率化を図る
ことができる。また、平面アンテナは、プリント回路技
術を利用して量産できるから、より安価に実現できるも
のであり、更に、送信用，受信用平面アンテナを複数枚
設けることにより、送信電力の低減，受信感度の向上、
あるいは通信回線の信頼性の向上が期待できるなど、実
用上の価値は大である。[Effect of the Invention] As described above, according to the present invention, at least one set of receiving plane antennas and one set of transmitting antennas are pivotably foldably attached, and at least a receiving plane is provided on the back surface of the receiving plane antenna. By arranging the first stage reception amplification means for amplifying the signal received by the antenna, and by arranging the last stage transmission amplification means for amplifying the signal transmitted from at least the transmission plane antenna on the back surface of the transmission plane antenna, A receiving flat antenna without a protruding portion and a transmitting flat antenna are foldable and can be made compact and portable.
As compared with a portable satellite communication device using a conventional parabolic antenna, the present invention has an effect that it is possible to configure a device that has no protrusions, is easy to fold and store and expand, and is compact and lightweight. Further, at the back of the receiving plane antenna, at least a first-stage receiving and amplifying means for amplifying the signal received by the receiving plane antenna is arranged, and at the back of the transmitting plane antenna, at least a signal to be transmitted from the transmitting plane antenna is arranged. By arranging the final stage transmission amplifying means for amplification, the distance between the receiving flat antenna and the transmitting flat antenna and the respective amplifying means can be shortened, and the loss in the feeding part to each antenna is reduced to improve the efficiency. Can be achieved. Further, the planar antenna can be mass-produced by using the printed circuit technology, so that it can be realized at a lower cost. Furthermore, by providing a plurality of transmitting and receiving planar antennas, the transmission power can be reduced and the receiving sensitivity can be improved. Improvement,
Alternatively, the reliability of the communication line can be expected to be improved, which is of great practical value.
第１図（ａ）は本発明の実施例の展開の状態を示す斜視
図、第１図（ｂ）は同上の折り畳み状態を示す斜視図、
第２図は同上の衛星通信の構成図、第３図は同上のブロ
ック図、第４図（ａ）は同上の他の実施例の展開の状態
を示す斜視図、第４図（ｂ）は同上の折り畳み状態を示
す斜視図、第５図は同上のブロック図である。 ９は送信用平面アンテナ、11は受信用平面アンテナであ
る。1 (a) is a perspective view showing a developed state of an embodiment of the present invention, and FIG. 1 (b) is a perspective view showing a folded state of the same.
2 is a block diagram of the same satellite communication, FIG. 3 is a block diagram of the same, FIG. 4 (a) is a perspective view showing a developed state of another embodiment of the same, and FIG. 4 (b) is FIG. 5 is a perspective view showing a folded state of the above, and FIG. 5 is a block diagram of the above. Reference numeral 9 is a transmitting plane antenna, and 11 is a receiving plane antenna.
Claims (2)
組の送信用平面アンテナとを折り畳み自在に枢着し、上
記受信用平面アンテナの背面には少なくとも受信用平面
アンテナにて受信した信号を増幅する初段の受信増幅手
段を配置し、送信用平面アンテナの背面に少なくとも送
信用平面アンテナより送信する信号を増幅する終段の送
信増幅手段を配置して成る可搬型衛星通信装置。1. At least one pair of receiving plane antennas and 1
A pair of transmitting plane antennas are foldably pivoted, and at the rear of the receiving plane antenna, at least a first-stage reception amplifying means for amplifying a signal received by the receiving plane antenna is arranged. A portable satellite communication device in which a final stage transmission amplifying means for amplifying a signal transmitted from at least a plane antenna for transmission is arranged on the back surface of.
部の回路一式と送信部の前段回路一式とを一体に配置
し、受信用平面アンテナの周囲に、複数組の送信用平面
アンテナを折り畳み自在に枢着配置すると共に、送信用
平面アンテナの背面には少なくとも送信部の終段の送信
増幅手段をそれぞれ配置して成ることを特徴とする特許
請求の範囲第１項記載の可搬型衛星通信装置。2. A set of receiving circuits and a set of preceding circuits of a transmitting unit are integrally arranged on the back surface of a pair of receiving flat antennas, and a plurality of sets of transmitting flat antennas are arranged around the receiving flat antenna. 2. The portable type according to claim 1, characterized in that at least the transmission amplification means at the final stage of the transmission section are arranged on the back surface of the transmission plane antenna, respectively, so as to be foldable. Satellite communication device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62006367A JPH0738599B2 (en) | 1987-01-14 | 1987-01-14 | Portable satellite communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62006367A JPH0738599B2 (en) | 1987-01-14 | 1987-01-14 | Portable satellite communication device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63174431A JPS63174431A (en) | 1988-07-18 |
| JPH0738599B2 true JPH0738599B2 (en) | 1995-04-26 |
Family
ID=11636393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62006367A Expired - Lifetime JPH0738599B2 (en) | 1987-01-14 | 1987-01-14 | Portable satellite communication device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0738599B2 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03128505A (en) * | 1989-09-18 | 1991-05-31 | Kawamoto Hirotaka | Plane antenna for multidirectional simultaneous reception |
| IL101875A (en) * | 1992-05-15 | 1995-12-31 | Israel State | Portable communication terminal |
| JP2586331B2 (en) * | 1993-05-27 | 1997-02-26 | 日本電気株式会社 | Transceiver for mobile satellite communications |
| US5542104A (en) * | 1993-05-27 | 1996-07-30 | Nec Corporation | Portable satellite communication equipment with foldable flat antennae common to both transmission and reception |
| EP0736924B1 (en) * | 1995-04-05 | 2002-09-04 | Koninklijke Philips Electronics N.V. | Portable receiver with an antenna |
| JPH1051215A (en) * | 1996-08-05 | 1998-02-20 | Nippon Telegr & Teleph Corp <Ntt> | Antenna device |
| SE509140C2 (en) * | 1997-04-10 | 1998-12-07 | Ericsson Telefon Ab L M | An antenna unit for transmitting and receiving signals from / to a portable radio terminal unit and a carrier radio unit comprising a terminal unit |
| JP2001352335A (en) | 2000-06-07 | 2001-12-21 | Nec Corp | LAN duplication system and LAN duplication method used therefor |
| KR100544675B1 (en) * | 2003-10-18 | 2006-01-23 | 한국전자통신연구원 | Satellite Signal Repeater using Microstrip Patch Array Antenna |
| JP4810442B2 (en) * | 2007-01-15 | 2011-11-09 | 八木アンテナ株式会社 | Portable antenna |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5929365Y2 (en) * | 1977-06-22 | 1984-08-23 | 株式会社東芝 | antenna device |
| JPS6010091U (en) * | 1983-06-30 | 1985-01-23 | ワイケイケイ株式会社 | Winding drum of rotary hoisting device for retractable screen door |
-
1987
- 1987-01-14 JP JP62006367A patent/JPH0738599B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63174431A (en) | 1988-07-18 |
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| EXPY | Cancellation because of completion of term |