JPH06177673A - Multi-stage collector traveling wave tube amplifier - Google Patents
Multi-stage collector traveling wave tube amplifierInfo
- Publication number
- JPH06177673A JPH06177673A JP40605790A JP40605790A JPH06177673A JP H06177673 A JPH06177673 A JP H06177673A JP 40605790 A JP40605790 A JP 40605790A JP 40605790 A JP40605790 A JP 40605790A JP H06177673 A JPH06177673 A JP H06177673A
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- Japan
- Prior art keywords
- collector
- wave tube
- power consumption
- potential
- traveling
- Prior art date
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- Amplifiers (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は多段コレクタ進行波管増
幅器に係り、特に低消費電力の多段コレクタ進行波管増
幅器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multistage collector traveling wave tube amplifier, and more particularly to a low power consumption multistage collector traveling wave tube amplifier.
【0002】[0002]
【従来の技術】進行波管と進行波管用の電源で構成され
た進行波管増幅器において、効率を上げて消費電力を低
減するための有効な手段として、進行波管のコレクタ段
数を複数にして、各コレクタ電極に異なった電圧を印加
する方法が採用されている。このような多段コレクタ進
行波管のコレクタ電圧を決定するには、飽和出力を与え
るように進行波管の高周波入力電力を一定値に保ち、同
時に、電極電圧も一定に保つ。そして、注目するコレク
タの電圧を変化させて直流の入力電力を測定する。さら
に、次のコレクタの電圧を同じ操作によって設定してい
き、複数のコレクタの電圧を設定するには、この作業を
繰り返して収束させる。2. Description of the Related Art In a traveling-wave tube amplifier composed of a traveling-wave tube and a power source for the traveling-wave tube, as an effective means for increasing efficiency and reducing power consumption, the traveling-wave tube has a plurality of collector stages. , A method of applying different voltages to each collector electrode is adopted. To determine the collector voltage of such a multistage collector traveling-wave tube, the high-frequency input power of the traveling-wave tube is kept at a constant value so as to give a saturated output, and at the same time, the electrode voltage is also kept constant. Then, the DC input power is measured by changing the voltage of the collector of interest. Further, the voltage of the next collector is set by the same operation, and in order to set the voltages of a plurality of collectors, this work is repeated and converged.
【0003】このような方法で電圧を設定することによ
って、進行波管は飽和出力の時にほぼ最良の効率になる
ように動作することができる。多段コレクタ進行波管で
は入力電力がない場合には消費電力は飽和出力時の消費
電力よりも減少するがその減少量は多くない。By setting the voltage in this manner, the traveling wave tube can operate at near-optimal efficiency at saturated output. In the multistage collector traveling-wave tube, when there is no input power, the power consumption is smaller than that at the saturated output, but the amount of decrease is not large.
【0004】[0004]
【発明が解決しようとする課題】しかるに、進行波管が
飽和状態で、動作するような飽和動作時の使用方法を用
いる場合には上に示したコレクタ電圧の設定方法によ
り、実際の消費電力量をほぼ最低にすることができる。
しかし、同一チャネル中で多数のキャリアを同時に増幅
する方式の場合、進行波管の三次混変調特性による不要
波の発生を低く抑えるため、コレクタ電圧の設定を低い
入力レベルで使用する。また、時分割多元接続(TDM
A)衛星通信方式用地球局用の電力増幅器では出力レベ
ルは飽和レベルであるが、信号を出力している時間が送
信する信号量に応じて、飽和出力送出時間の割合が1%
から100%近くまで変化し、小規模の地球局ではこの
飽和出力送出時間の割合は実際のところ10%以下の場
合が多い。However, in the case of using the method of use in a saturated operation in which the traveling wave tube operates in a saturated state, the actual power consumption is determined by the collector voltage setting method shown above. Can be almost the minimum.
However, in the case of a method of simultaneously amplifying a large number of carriers in the same channel, the collector voltage is set at a low input level in order to suppress the generation of unnecessary waves due to the third-order cross modulation characteristic of the traveling wave tube. In addition, time division multiple access (TDM
A) Although the output level is the saturation level in the power amplifier for the satellite communication system earth station, the ratio of the saturation output transmission time is 1% depending on the amount of signal transmitted during the time when the signal is output.
To about 100%, and in a small-scale earth station, the ratio of the saturated output transmission time is actually 10% or less in many cases.
【0005】このように、信号レベルが小さかったり飽
和出力送出時間の割合が小さかったりする場合には飽和
状態に比較して無効に消費される電力が大きく、消費電
力量も無視できない。As described above, when the signal level is low or the ratio of the saturated output transmission time is small, the power consumed ineffectively is large compared to the saturated state, and the power consumption cannot be ignored.
【0006】本発明は上記に点に鑑みなされたもので、
進行波管増幅器の消費電力を低減して、その運用経費を
削減するとともに電力ならびに熱設計を容易にして装置
の小型化・経済化を実現できる多段コレクタ進行波管増
幅器を提供することを目的とする。The present invention has been made in view of the above points,
An object of the present invention is to provide a multistage collector traveling-wave tube amplifier that can reduce the power consumption of the traveling-wave tube amplifier, reduce its operating cost, and facilitate power and thermal design to realize a compact and economical device. To do.
【0007】[0007]
【課題を解決するための手段】図1は本発明の原理構成
図を示す。2個以上のコレクタ電極10,11,12を
有する多段コレクタ進行波管増幅器において、非飽和動
作時或いは一時的に飽和動作となる間欠的飽和動作時の
進行波管13の電子銃15から最も遠い位置にあるコレ
クタ電極12の電位を進行波管13の陰極電位を基準と
して、飽和動作時に最小の消費電力量となるコレクタ電
極12の電位よりも小で、かつ非飽和動作時或いは一時
的に飽和動作となる間欠的飽和動作時に消費電力量が最
低または最低値に近い状態になるような所定の電位に設
定する.また、非飽和動作時或いは一時的に飽和動作と
なる間欠的飽和動作時の進行波管13の電子銃12から
最も遠い位置にあるコレクタ電極の所定の電位は飽和動
作時に最小の消費電力となるときの最も遠い位置にある
コレクタ電極12の電位の60%以下である。また、進
行波管13の高周波入力電力あるいは高周波出力電力の
検出手段と、検出手段の出力の平均値を求める平均値算
出手段を有し、平均値算出手段の出力に応じて進行波管
13の電子銃15から最も遠い位置にあるコレクタ電極
12の電位を上昇させる。FIG. 1 is a block diagram showing the principle of the present invention. In the multi-stage collector traveling-wave tube amplifier having two or more collector electrodes 10, 11, 12, the farthest from the electron gun 15 of the traveling-wave tube 13 during non-saturation operation or intermittent saturation operation that temporarily becomes saturation operation. The potential of the collector electrode 12 at the position is smaller than the potential of the collector electrode 12 that causes the minimum power consumption during the saturation operation with reference to the cathode potential of the traveling wave tube 13, and is saturated during the non-saturation operation or temporarily. It is set to a predetermined potential such that the power consumption becomes the minimum or a state close to the minimum during intermittent saturation operation. In addition, the predetermined potential of the collector electrode of the traveling wave tube 13 located farthest from the electron gun 12 during the unsaturated operation or the intermittent saturated operation that is temporarily saturated results in the minimum power consumption during the saturated operation. Is 60% or less of the potential of the collector electrode 12 at the farthest position. Further, the traveling wave tube 13 has a detecting means for detecting the high frequency input power or the high frequency output power of the traveling wave tube 13, and an average value calculating means for obtaining an average value of the outputs of the detecting means. The potential of the collector electrode 12 located farthest from the electron gun 15 is increased.
【0008】[0008]
【作用】本発明は2段以上の多段コレクタを持つ進行波
管において、非飽和動作時或いは一時的に飽和動作とな
る間欠的飽和動作時に電子銃および低速波回路から最も
遠い位置にあるコレクタの最低電位に設定するコレクタ
電極電位を陰極電位を基準として飽和動作時の最小の消
費電力を与える電位の60%以下の電位を設定する。ま
た、進行波管の入力あるいは出力高周波電力を検出し、
この平均電力が所定のレベルを越えた場合には、最低電
位のコレクタ電極電位を飽和動作時に消費電力を最小に
する電圧付近に上昇させ、進行波管の入力あるいは出力
高周波電力が所定のレベル以下になる場合と同様のコレ
クタ電極の電位を、飽和動作時に最小の消費電力を与え
る電位より低い電位を設定することにより、信号レベル
が小さかったり、飽和出力送出時間割合が小さかったり
する場合の消費電力量を低減する。According to the present invention, in a traveling wave tube having a multi-stage collector having two or more stages, the collector located farthest from the electron gun and the low-speed wave circuit at the time of non-saturation operation or intermittent saturation operation which temporarily becomes saturation operation. The collector electrode potential that is set to the lowest potential is set to a potential that is 60% or less of the potential that gives the minimum power consumption during the saturation operation with reference to the cathode potential. It also detects the input or output high frequency power of the traveling wave tube,
When this average power exceeds a predetermined level, the collector electrode potential of the lowest potential is raised to a voltage near the voltage that minimizes power consumption during saturation operation, and the input or output high frequency power of the traveling wave tube is below a predetermined level. If the potential of the collector electrode is set to a potential lower than the potential that gives the minimum power consumption during saturation operation, the power consumption when the signal level is low or the saturation output sending time ratio is low Reduce the amount.
【0009】[0009]
【実施例】本実施例の進行波間増幅器動作形態として飽
和動作と非飽和動作の場合について説明する。先ず、飽
和動作には常に飽和出力状態となっているデュ−ティ1
00%状態と、飽和出力状態と非飽和状態が混在して間
欠的に飽和動作となるデュ−ティ100%未満の2つの
状態がある。また、非飽和動作は無信号あるいは小信号
状態を示す。EXAMPLE A case of a saturated operation and a non-saturated operation will be described as an operating mode of the traveling wave amplifier of this example. First, for saturation operation, duty 1 is always in a saturated output state.
There are two states, a 00% state, and a duty of less than 100% in which a saturated output state and a non-saturated state are mixed and intermittent operation is performed. Further, the non-saturation operation indicates a no signal or small signal state.
【0010】図2は本発明の第3コレクタ電圧に対する
第1コレクタ10,第2コレクタ11,第3コレクタ1
2の夫々の電流の変化を示すグラフである。同グラフは
飽和出力における3種のコレクタ10,11,12に流
れるそれぞれの電流Ic1, Ic2, Ic3を第3コレクタ電
圧Ec3 の関数として示す。コレクタ電極は一般に電子銃
15に近い電極から順に第1コレクタ10,第2コレク
タ11,第3コレクタ12と名付ける。さらに、第1コ
レクタ10に最も高い電圧を印加し、第3コレクタ12
に最も低い電圧を印加する。同グラフでは第3コレクタ
電圧Ec3 を上昇させると、第3コレクタ電流Ic3は増加
するが、第1コレクタ電流Ic1 ,第2コレクタ電流Ic2
は減少することが示される。FIG. 2 shows the first collector 10, the second collector 11, and the third collector 1 for the third collector voltage of the present invention.
It is a graph which shows the change of each 2 current. The graph shows the respective currents Ic1, Ic2, Ic3 flowing through the three collectors 10, 11, 12 at saturated output as a function of the third collector voltage Ec3. The collector electrodes are generally named as a first collector 10, a second collector 11, and a third collector 12 in order from the electrode close to the electron gun 15. Furthermore, the highest voltage is applied to the first collector 10, and the third collector 12
The lowest voltage is applied to. In the graph, when the third collector voltage Ec3 is increased, the third collector current Ic3 is increased, but the first collector current Ic1 and the second collector current Ic2 are increased.
Is shown to decrease.
【0011】図3は本発明の第3コレクタ電圧Ec3 に対
するらせん電流の変化を示すグラフである。同グラフ
中、y軸はらせん電流の相対目盛であり、x軸は第3コ
レクタ電圧Ec3 を示す。グラフ31は飽和出力時のらせ
ん電流Ihの変化を示しており、らせん電流Ihの変化は小
さい。一方、グラフ32は無信号出力時のらせん電流Ih
の変化を示しており、第3コレクタ電圧Ec3 が0.08kVで
一度低くなってからは殆ど変化がない。FIG. 3 is a graph showing changes in the spiral current with respect to the third collector voltage Ec3 of the present invention. In the graph, the y-axis is the relative scale of the spiral current, and the x-axis is the third collector voltage Ec3. The graph 31 shows the change in the spiral current Ih at the saturated output, and the change in the spiral current Ih is small. On the other hand, graph 32 shows the spiral current Ih when there is no signal output.
Shows that there is almost no change after the third collector voltage Ec3 is 0.08 kV and once becomes low.
【0012】図4は本発明の第3コレクタ電圧Ec3 に対
する飽和動作及び無信号動作時の消費電力を示すグラフ
である。同グラフ中、y軸は消費電力Pdc (W)を示
し、x軸は第3コレクタ電圧Ec3 を示す。グラフ41は
飽和出力時の消費電力であり、消費電力は第3コレクタ
電圧Ec3 が0.6kV の時に最低になる。一方、グラフ42
は非飽和動作時である無信号出力時の消費電力であり、
消費電力は第3コレクタ電圧Ec3 が0.15kVの時に最低に
なる。FIG. 4 is a graph showing the power consumption in the saturation operation and the non-signal operation with respect to the third collector voltage Ec3 of the present invention. In the graph, the y-axis shows the power consumption Pdc (W) and the x-axis shows the third collector voltage Ec3. The graph 41 shows the power consumption at the saturated output, and the power consumption becomes the minimum when the third collector voltage Ec3 is 0.6 kV. On the other hand, graph 42
Is the power consumption during non-saturated operation with no signal output,
The power consumption becomes minimum when the third collector voltage Ec3 is 0.15kV.
【0013】また、飽和出力における消費電力の変化は
緩やかで小さいのに比べて、無信号出力は第3コレクタ
電流Ic3 が減少し、第3コレクタ12よりも電圧が高
い、第1コレクタ、第2コレクタ電流Ic1,Ic2 が増加す
るために第3コレクタ電圧Ec3と共に消費電力が急激に
低減する。The change in power consumption at the saturated output is gradual and small, whereas in the non-signal output, the third collector current Ic3 decreases and the voltage is higher than that of the third collector 12. Since the collector currents Ic1 and Ic2 increase, the power consumption sharply decreases together with the third collector voltage Ec3.
【0014】図5は本発明の使用時間割合(デュ−テ
ィ)に対する平均消費電力を示すグラフである。同グラ
フは図4との関係を基にしてデュ−ティサイクル、即ち
飽和状態で動作する時間の割合と平均消費電力の関係
を、第3コレクタ電圧Ec3 をパラメ−タとしてプロット
したものである。同図中、グラフaは第2コレクタ電圧
Ec2 を1.2kVとし、第3コレクタ電圧Ec3 を0.6kVとし
た場合の平均消費電力を示す。グラフbは第2コレクタ
電圧Ec2 を1.2kVとし、第3コレクタ電圧Ec3 を0.36k
V とした場合の平均消費電力を示す。グラフcは第2コ
レクタ電圧Ec2 を1.2kVとし、第3コレクタ電圧Ec3 を
0.15kV とした場合の平均消費電力を示す。グラフdは
第2コレクタ電圧Ec2 を0.8kVとし、第3コレクタ電圧
Ec3 を0.15kV とした場合の平均消費電力を示す。FIG. 5 is a graph showing the average power consumption with respect to the usage time ratio (duty) of the present invention. Based on the relationship with FIG. 4, this graph plots the relationship between the duty cycle, that is, the ratio of the time of operation in the saturated state and the average power consumption, using the third collector voltage Ec3 as a parameter. In the figure, graph a is the second collector voltage
The average power consumption when Ec2 is 1.2 kV and the third collector voltage Ec3 is 0.6 kV is shown. The graph b shows that the second collector voltage Ec2 is 1.2kV and the third collector voltage Ec3 is 0.36k.
Indicates the average power consumption when V is set. Graph c shows the average power consumption when the second collector voltage Ec2 is 1.2 kV and the third collector voltage Ec3 is 0.15 kV. The graph d shows that the second collector voltage Ec2 is 0.8kV and the third collector voltage is
The average power consumption when Ec3 is 0.15kV is shown.
【0015】図6は本発明の第1実施例の多段コレクタ
進行波管増幅器の構成図を示す。この多段コレクタ進行
波管増幅器は進行波管61と電源62から構成されてお
り、さらに、進行波管61は陰極63、陽極64、らせ
ん65、第1コレクタ66、第2コレクタ67、第3コ
レクタ68により構成される。一方、電源62は陽極電
源69、らせん電源70、第1コレクタ電源71、第2
コレクタ電源72、第3コレクタ電源73より構成され
る。FIG. 6 is a block diagram of a multistage collector traveling wave tube amplifier according to the first embodiment of the present invention. This multistage collector traveling-wave tube amplifier is composed of a traveling-wave tube 61 and a power source 62. Further, the traveling-wave tube 61 includes a cathode 63, an anode 64, a helix 65, a first collector 66, a second collector 67, and a third collector. It is composed of 68. On the other hand, the power source 62 includes an anode power source 69, a spiral power source 70, a first collector power source 71, and a second power source.
It is composed of a collector power supply 72 and a third collector power supply 73.
【0016】本実施例では第3コレクタの電位を0.15k
V に設定してある以外は通常の進行波管増幅器と同一で
あり、第1コレクタ66、第2コレクタ67の電位はい
ずれも飽和動作における消費電力が最小となる値に設定
されている。In this embodiment, the potential of the third collector is set to 0.15k.
It is the same as a normal traveling-wave tube amplifier except that it is set to V, and the potentials of the first collector 66 and the second collector 67 are both set to a value that minimizes the power consumption in the saturation operation.
【0017】本実施例では第1コレクタ電圧Ec1 を1.6
kV、第2コレクタ電圧Ec2 を1.2kVに設定してある。図
5から明らかなようにデュ−ティが0.7以下では最低の
平均消費電力がデュ−ティとも最低となる。また、デュ
−ティが1.0近くでは最低の平均消費電力よりも約4W
高い値になるにすぎない。In this embodiment, the first collector voltage Ec1 is 1.6
The kV and the second collector voltage Ec2 are set to 1.2 kV. As is apparent from FIG. 5, when the duty is 0.7 or less, the lowest average power consumption becomes the lowest for both the duty and the duty. In addition, when the duty is near 1.0, it is about 4W than the lowest average power consumption.
Only high value.
【0018】例えば、図5において、デュ−ティが0.1
の時、第3コレクタ電圧Ec3 が0.15kV である場合の平
均消費電力を示すグラフcと、第3コレクタ電圧Ec3 が
0.6kVである場合の平均消費電力を示すグラフaの各デ
ュ−ティ毎の比率を以下の表に示す。For example, in FIG. 5, the duty is 0.1.
At each time, each duty of the graph c showing the average power consumption when the third collector voltage Ec3 is 0.15 kV and the graph a showing the average power consumption when the third collector voltage Ec3 is 0.6 kV. The ratios for each are shown in the table below.
【0019】[0019]
【表1】 [Table 1]
【0020】図5のグラフと表1を参照するとデュ−テ
ィが0.1になるとグラフcの消費電力は12Wとなり、
グラフaの消費電力は21Wである。従ってグラフaの
消費電力値とグラフcの消費電力値の比率は57%とな
る。このように特にデュ−ティが低い場合には消費電力
量の大幅な削減が可能となる。Referring to the graph of FIG. 5 and Table 1, when the duty becomes 0.1, the power consumption of the graph c becomes 12 W,
The power consumption of the graph a is 21W. Therefore, the ratio between the power consumption value of graph a and the power consumption value of graph c is 57%. In this way, especially when the duty is low, it is possible to significantly reduce the power consumption.
【0021】また、デュ−ティが0.1のとき、第3コレ
クタ電圧Ec3 0.36kV における平均消費電力は16Wで
あり、第3コレクタ電圧Ec3 0.6kVの平均消費電力は2
1Wであり、その比率は76%となる。しかしながら、
第3コレクタの電位を無信号時に消費電力が最低となる
0.15kV (グラフc)にしなくとも0.36kV のグラフb
に示す飽和動作時に消費電力が最小となる第3コレクタ
電位の60%程度よりも低ければ、有効な消費電力の低
減が可能である。When the duty is 0.1, the average power consumption at the third collector voltage Ec3 0.36 kV is 16 W, and the average power consumption at the third collector voltage Ec3 0.6 kV is 2 W.
It is 1 W, and the ratio is 76%. However,
Graph b of 0.36 kV without the need of making the potential of the third collector to be 0.15 kV (graph c), which is the minimum power consumption when there is no signal.
If the power consumption is lower than about 60% of the third collector potential that minimizes the power consumption during the saturation operation, the effective power consumption can be reduced.
【0022】本実施例では出力10Wの3段コレクタに
ついて説明したが、高周波出力が大きければ消費電力に
示す陰極加熱用電力の比率が小さくなり、消費電力削減
効果はさらに大きくなる。In this embodiment, the three-stage collector having an output of 10 W has been described, but if the high frequency output is large, the ratio of the power for cathode heating shown in the power consumption is small, and the power consumption reducing effect is further enhanced.
【0023】さらに、本実施例では最低電位の第3コレ
クタ68の電位のみを低下させたが、第3コレクタ68
に限らず最高電位のコレクタ(第1コレクタ66)を除
くすべてのコレクタ電位を飽和状態における最適値とは
異なった値に設定することにより、消費電力削減効率を
さらに改善できる。Furthermore, in this embodiment, only the potential of the third collector 68 having the lowest potential is lowered, but the third collector 68 is reduced.
However, by setting all collector potentials other than the highest potential collector (first collector 66) to a value different from the optimum value in the saturated state, the power consumption reduction efficiency can be further improved.
【0024】例えば、上記出力10W、3段コレクタの
らせん形進行波管61において、第2コレクタ67の電
位は飽和状態では1.2kVで消費電力を最低にするが、
第3コレクタ68を0.15kV に設定した場合には飽和出
力時の消費電力を最低にする第2コレクタ67の電位は
0.8kV程度になる。この時、飽和出力でのデュ−ティ1
における消費電力は約1W(グラフc−d)低下し、無
信号状態における消費電力もわずかに低下する。また、
各デュ−ティの値は飽和動作時、及び無信号時の実測値
を基に求めてある。図5にはこの時の消費電力量の低減
効果を示している。For example, in the spiral traveling wave tube 61 with the output of 10 W and the three-stage collector, the electric potential of the second collector 67 is 1.2 kV in the saturated state to minimize the power consumption.
When the third collector 68 is set to 0.15 kV, the potential of the second collector 67 that minimizes the power consumption during saturated output is about 0.8 kV. At this time, duty 1 with saturated output
The power consumption in 1 is reduced by about 1 W (graphs cd), and the power consumption in the no-signal state is also slightly reduced. Also,
The value of each duty is calculated based on the actual measurement values at the time of saturation operation and when there is no signal. FIG. 5 shows the effect of reducing the power consumption at this time.
【0025】図7は本発明の第2の実施例の多段コレク
タ進行波管増幅器の構成図を示す。同図中、図6と同様
の構成部分には同一符号を付し、その説明を省略する。
第2実施例としての多段コレクタ進行波管増幅器は入力
高周波電力を分岐する方向性結合器84、検波器85、
積分回路86、比較回路87、光結合器88と、進行波
管61、電源62より構成される。このうち、第1実施
例の電源73は1値電源であったが、本実施例では電源
62の第3コレクタ電源80は2値電源とする。FIG. 7 is a block diagram of a multistage collector traveling wave tube amplifier according to the second embodiment of the present invention. In the figure, the same components as those in FIG. 6 are designated by the same reference numerals, and the description thereof will be omitted.
The multistage collector traveling-wave tube amplifier according to the second embodiment has a directional coupler 84, a detector 85 and a detector 85 for branching input high frequency power.
It is composed of an integrating circuit 86, a comparing circuit 87, an optical coupler 88, a traveling wave tube 61, and a power source 62. Of these, the power supply 73 in the first embodiment was a one-valued power supply, but in this embodiment, the third collector power supply 80 of the power supply 62 is a two-valued power supply.
【0026】次に第2実施例の動作を説明する。高周波
入力電力が無い無信号状態時、第3コレクタ68の電圧
は0.15kV に設定されるている。この時の第3コレクタ
の消費電力は図4での最低値の約10Wとなる。高周波
入力信号はTDMA方式用のパルス状の信号であるとす
る。入力信号は方向性結合器84で分離され、一方の信
号は進行波管61のらせん65に入力し、増幅される。
他方の信号は検出手段である検波器82に入力され、電
圧に変換され平均値算出手段である積分回路83に入力
される。積分回路83では高周波入力のパルスデュ−テ
ィに比例する直流電圧に変換される。積分回路83から
の出力は比較回路84で一定の直流電圧と比較され、こ
の一定の電圧より高くなると、比較回路84のディジタ
ル出力状態が変わる。Next, the operation of the second embodiment will be described. The voltage of the third collector 68 is set to 0.15 kV when there is no high-frequency input power and there is no signal. The power consumption of the third collector at this time is about 10 W, which is the minimum value in FIG. The high frequency input signal is assumed to be a pulsed signal for the TDMA system. The input signal is separated by the directional coupler 84, and one signal is input to the helix 65 of the traveling wave tube 61 and amplified.
The other signal is input to a detector 82 which is a detecting means, is converted into a voltage and is input to an integrating circuit 83 which is an average value calculating means. The integrating circuit 83 converts the high frequency signal into a DC voltage proportional to the pulse duty. The output from the integrating circuit 83 is compared with a constant DC voltage in the comparing circuit 84, and when it becomes higher than this constant voltage, the digital output state of the comparing circuit 84 changes.
【0027】比較回路84の状態変化は光結合器85を
通して、接地86電位から負の高電位にある第3コレク
タ電源80に伝えられる。比較回路84の基準電圧はデ
ュ−ティ0.8程度に相当する値にすると広いデュ−ティ
範囲で消費電力を最低にできる。第3コレクタ電源80
では入力した信号を基に出力電圧を0.6kVに切り換え
る。この結果、第3コレクタ電圧Ec3 は飽和動作に対し
て最も効率が高くなる状態になる。The state change of the comparison circuit 84 is transmitted from the potential of the ground 86 to the third collector power source 80 at the negative high potential through the optical coupler 85. If the reference voltage of the comparison circuit 84 is set to a value corresponding to a duty of about 0.8, the power consumption can be minimized in a wide duty range. Third collector power supply 80
Then, the output voltage is switched to 0.6 kV based on the input signal. As a result, the third collector voltage Ec3 is in the highest efficiency for the saturation operation.
【0028】高周波入力のデュ−ティが低下した場合に
はこれと逆の動作により、第3コレクタ電源80の出力
電圧は0.15kV に切り替わる。When the duty of the high frequency input is lowered, the output voltage of the third collector power supply 80 is switched to 0.15 kV by the opposite operation.
【0029】進行波管61のコレクタ電圧は高周波信号
の特性には影響を与えないので、コレクタ電圧の制御は
特に高速で行う必要はなく、時定数の比較的大きな安定
的な回路とすることができる。高周波入力信号のパルス
デュ−ティの変化よりも第3コレクタ68電圧の変化が
遅れた場合にはその期間だけ消費電力の最低の状態から
外れて消費電力が増加するにすぎない。Since the collector voltage of traveling wave tube 61 does not affect the characteristics of the high frequency signal, it is not necessary to control the collector voltage particularly at high speed, and a stable circuit with a relatively large time constant can be obtained. it can. When the change in the voltage of the third collector 68 lags behind the change in the pulse duty of the high frequency input signal, the power consumption is increased only by deviating from the minimum power consumption state for that period.
【0030】これはデュ−ティが10%のときに第3コ
レクタ68の電圧Ec3 が0.15kV で消費電力が最低にな
っている状態と仮定すると、第3コレクタ68の電圧Ec
3 =0.15kV では消費電力は最低にならず、Ec3 ≒0.6
kVで、消費電力は最低になる。第3コレクタ68の電圧
Ec3 が0.15kV から増加し始めて0.6kVになるまでの時
間は消費電力は最低とはならない状態になる。Assuming that the voltage Ec3 of the third collector 68 is 0.15 kV and the power consumption is minimum when the duty is 10%, the voltage Ec of the third collector 68 is as follows.
At 3 = 0.15kV, the power consumption does not become the lowest, and Ec3 ≈ 0.6
At kV, power consumption is lowest. Voltage of the third collector 68
The power consumption does not become the minimum during the time from when Ec3 starts to increase from 0.15kV to when it reaches 0.6kV.
【0031】なお、コレクタ電圧を変えるとらせん電流
も変化することがあり、この場合にはコレクタ電圧を消
費電力最低点から外して設定することになるが、本発明
の主旨に反するものではない。The spiral current may change when the collector voltage is changed. In this case, the collector voltage is set outside the lowest point of power consumption, but this is not against the gist of the present invention.
【0032】本発明は上記の実施例に限定されることな
く、様々な応用が可能である。例えば3段コレクタの進
行波管61でなく、2段あるいは4段コレクタの進行波
管においても実施例の第3コレクタ68を第2コレクタ
あるいは第4コレクタに置き換えれば同様の動作が可能
である。The present invention is not limited to the above embodiment, but various applications are possible. For example, instead of the traveling wave tube 61 having a three-stage collector, a traveling wave tube having a two-stage or four-stage collector can perform the same operation by replacing the third collector 68 of the embodiment with the second collector or the fourth collector.
【0033】また、進行波管61の高周波入力部から信
号を取り出す代わりに進行波管61の高周波出力部より
検波器82に加える信号を取り出すことも可能である。Further, instead of taking out the signal from the high frequency input section of traveling wave tube 61, it is also possible to take out the signal to be applied to detector 82 from the high frequency output section of traveling wave tube 61.
【0034】また、本実施例では第3コレクタ電源80
の出力電圧を2値に変化させたが、3値以上あるいは連
続的に変化させることも可能である。この場合にはさら
に広いデュ−ティ範囲において消費電力を最低またはよ
り最低に近い状態に下げることができる。In this embodiment, the third collector power source 80
Although the output voltage of is changed to two values, it is also possible to change it to three values or more or continuously. In this case, the power consumption can be lowered to the minimum or a state closer to the minimum in a wider duty range.
【0035】さらにパルス状の高周波信号ばかりでな
く、飽和レベルと比較して小さい電力レベルの信号が入
力する場合にも同様の消費電力量の低減効果が得られ
る。Further, not only a pulsed high frequency signal but also a signal having a power level smaller than the saturation level is input, the same effect of reducing the power consumption can be obtained.
【0036】[0036]
【発明の効果】上記のように本発明によれば、高速の制
御や外部からの制御が不要であるので、システム構成が
簡単であり、装置の動作安定性が高く、調整も簡単であ
る。また、高周波特性に全く影響を与えずに、デュ−テ
ィの小さい信号あるいはレベルの低い信号のときに、消
費電力量の削減が可能である。As described above, according to the present invention, since high-speed control and external control are unnecessary, the system configuration is simple, the operation stability of the device is high, and the adjustment is easy. Further, it is possible to reduce the power consumption for a signal with a small duty or a signal with a low level without affecting the high frequency characteristics at all.
【0037】さらに、消費電力量の大幅な低下に伴い、
運用経費の削減が可能となり、熱設計・装置電力設計が
容易になり、進行波管増幅器の小型化・経済化が可能に
なる。Furthermore, with the drastic reduction in power consumption,
Operational costs can be reduced, thermal design and device power design can be facilitated, and traveling wave tube amplifiers can be made smaller and more economical.
【図1】本発明の原理構成図である。FIG. 1 is a principle configuration diagram of the present invention.
【図2】本発明の第3コレクタ電圧に対する第1、第
2、第3コレクタ電流の変化を示すグラフである。FIG. 2 is a graph showing changes in first, second and third collector currents with respect to a third collector voltage of the present invention.
【図3】本発明の第3コレクタ電圧に対するらせん電流
の変化を示すグラフである。FIG. 3 is a graph showing a change of a spiral current with respect to a third collector voltage of the present invention.
【図4】本発明の第3コレクタ電圧に対する飽和動作及
び無信号動作時の消費電力を示すグラフである。FIG. 4 is a graph showing power consumption during a saturation operation and a no-signal operation according to a third collector voltage of the present invention.
【図5】本発明の使用時間割合に対する平均消費電力を
示すグラフである。FIG. 5 is a graph showing the average power consumption with respect to the usage time ratio of the present invention.
【図6】本発明の第1実施例の多段コレクタ進行波管増
幅器の構成図である。FIG. 6 is a configuration diagram of a multistage collector traveling wave tube amplifier according to the first embodiment of the present invention.
【図7】本発明の第2実施例の多段コレクタ進行波管増
幅器の構成図である。FIG. 7 is a configuration diagram of a multistage collector traveling wave tube amplifier according to a second embodiment of the present invention.
10,66 第1のコレクタ 11,67 第2のコレクタ 12,68 第3のコレクタ 13,61 進行波管 14,62 電源 15 電子銃 63 陰極 64 陽極 65 らせん 71 第1コレクタ電源 72 第2コレクタ電源 73 第3コレクタ電源 81 方向性結合器 82 検波器 83 積分回路 84 比較回路 85 光結合器 10,66 First collector 11,67 Second collector 12,68 Third collector 13,61 Traveling wave tube 14,62 Power supply 15 Electron gun 63 Cathode 64 Anode 65 Helix 71 First collector power supply 72 Second collector power supply 73 Third Collector Power Supply 81 Directional Coupler 82 Detector 83 Integrating Circuit 84 Comparison Circuit 85 Optical Coupler
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成3年1月30日[Submission date] January 30, 1991
【手続補正1】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0002[Name of item to be corrected] 0002
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【0002】[0002]
【従来の技術】進行波管と進行波管用の電源で構成され
た進行波管増幅器において、効率を上げて消費電力を低
減するための有効な手段として、進行波管のコレクタ段
数を複数にして、各コレクタ電極に異なった電圧を印加
する方法が採用されている。このような多段コレクタ進
行波管のコレクタ電圧を決定するには、飽和出力を与え
るように進行波管の高周波入力電力を一定値に保ち、同
時に、電極電圧も一定に保つ。そして、注目するコレク
タの電圧を変化させて直流の入力電力を測定し、このコ
レクタ電圧を直流の入力電力が最小となる電圧に設定す
る。さらに、次のコレクタの電圧を同じ操作によって設
定していき、複数のコレクタの電圧を設定するには、こ
の作業を繰り返して収束させる。2. Description of the Related Art In a traveling-wave tube amplifier composed of a traveling-wave tube and a power source for the traveling-wave tube, as an effective means for increasing efficiency and reducing power consumption, the traveling-wave tube has a plurality of collector stages. , A method of applying different voltages to each collector electrode is adopted. To determine the collector voltage of such a multistage collector traveling-wave tube, the high-frequency input power of the traveling-wave tube is kept at a constant value so as to give a saturated output, and at the same time, the electrode voltage is also kept constant. Then, by changing the voltage at the collector of interest by measuring the input power of the DC, the co
The lector voltage is set to a voltage that minimizes the DC input power . Further, the voltage of the next collector is set by the same operation, and in order to set the voltage of a plurality of collectors, this work is repeated and converged.
【手続補正2】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0004[Correction target item name] 0004
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【0004】[0004]
【発明が解決しようとする課題】しかるに、進行波管が
飽和状態で、動作するような飽和動作時の使用方法を用
いる場合には上に示したコレクタ電圧の設定方法によ
り、実際の消費電力量をほぼ最低にすることができる。
しかし、同一チャネル中で多数のキャリアを同時に増幅
する方式の場合、進行波管の三次混変調特性による不要
波の発生を低く抑えるため、低い入力レベルで使用す
る。また、時分割多元接続(TDMA)衛星通信方式用
地球局用の電力増幅器では出力レベルは飽和レベルであ
るが、信号を出力している時間が送信する信号量に応じ
て、飽和出力送出時間の割合が1%以下から100%近
くまで変化し、小規模の地球局ではこの飽和出力送出時
間の割合は実際のところ10%以下の場合が多い。However, in the case of using the method of use in a saturated operation in which the traveling wave tube operates in a saturated state, the actual power consumption is determined by the collector voltage setting method shown above. Can be almost the minimum.
However, in the case of a method that amplifies a large number of carriers in the same channel at the same time, it is unnecessary due to the third-order intermodulation characteristics of the traveling wave tube.
Use at low input levels to keep the wave generation low.
It In addition, in the power amplifier for the earth station for time division multiple access (TDMA) satellite communication system, the output level is the saturation level, but the saturation output transmission time is The ratio varies from 1% or less to nearly 100%, and in a small earth station, the ratio of the saturated output transmission time is actually 10% or less in many cases.
【手続補正3】[Procedure 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0007[Correction target item name] 0007
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【0007】[0007]
【課題を解決するための手段】図1は本発明の原理構成
図を示す。2個以上のコレクタ電極10,11,12を
有する多段コレクタ進行波管増幅器において、非飽和動
作時或いは一時的に飽和動作となる間欠的飽和動作時の
進行波管13の電子銃15から最も遠い位置にあるコレ
クタ電極12の電位を進行波管13の陰極電位を基準と
して、飽和動作時に最小の消費電力量となるコレクタ電
極12の電位よりも小で、かつ非飽和動作時或いは一時
的に飽和動作となる間欠的飽和動作時に消費電力量が最
低または最低値に近い状態になるような所定の電位に設
定する.また、非飽和動作時或いは一時的に飽和動作と
なる間欠的飽和動作時の進行波管13の電子銃15から
最も遠い位置にあるコレクタ電極の所定の電位は飽和動
作時に最小の消費電力となるときの最も遠い位置にある
コレクタ電極12の電位の60%以下である。また、進
行波管13の高周波入力電力あるいは高周波出力電力の
検出手段と、検出手段の出力の平均値を求める平均値算
出手段を有し、平均値算出手段の出力に応じて進行波管
13の電子銃15から最も遠い位置にあるコレクタ電極
12の電位を上昇させる。FIG. 1 is a block diagram showing the principle of the present invention. In the multi-stage collector traveling-wave tube amplifier having two or more collector electrodes 10, 11, 12, the farthest from the electron gun 15 of the traveling-wave tube 13 during non-saturation operation or intermittent saturation operation that temporarily becomes saturation operation. The potential of the collector electrode 12 at the position is smaller than the potential of the collector electrode 12 that causes the minimum power consumption during the saturation operation with reference to the cathode potential of the traveling wave tube 13, and is saturated during the non-saturation operation or temporarily. It is set to a predetermined potential such that the power consumption becomes the minimum or a state close to the minimum during intermittent saturation operation. The predetermined potential of the non-saturation operation or during a collector electrode located farthest from the electron gun 1 5 TWT 13 intermittent saturation operation to be temporarily saturated operation and minimum power consumption at the time of saturation operation Is 60% or less of the potential of the collector electrode 12 at the farthest position. The traveling wave tube 13 has a high frequency input power or a high frequency output power detecting means, and an average value calculating means for calculating an average value of the output of the detecting means. The potential of the collector electrode 12 located farthest from the electron gun 15 is increased.
【手続補正4】[Procedure amendment 4]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0008[Correction target item name] 0008
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【0008】[0008]
【作用】本発明は2段以上の多段コレクタを持つ進行波
管において、非飽和動作時或いは一時的に飽和動作とな
る間欠的飽和動作時に電子銃および低速波回路から最も
遠い位置にある全コレクタうちの最低電位に設定するコ
レクタ電極電位を陰極電位を基準として飽和動作時の最
小の消費電力を与える電位の60%以下の電位を設定す
る。また、進行波管の入力あるいは出力高周波電力を検
出し、この平均電力が所定のレベルを越えた場合には、
最低電位のコレクタ電極電位を飽和動作時に消費電力を
最小にする電圧付近に上昇させ、進行波管の入力あるい
は出力高周波電力が所定のレベル以下になると同じコレ
クタ電極の電位を、飽和動作時に最小の消費電力を与え
る電位より低い電位を設定することにより、信号レベル
が小さかったり、飽和出力送出時間割合が小さかったり
する場合の消費電力量を低減する。According to the present invention, in a traveling wave tube having a multistage collector having two or more stages, all collectors located farthest from the electron gun and the low-speed wave circuit during non-saturation operation or intermittent saturation operation which temporarily becomes saturation operation. The collector electrode potential, which is set to the lowest potential, is set to a potential that is 60% or less of the potential that gives the minimum power consumption during the saturation operation with the cathode potential as a reference. Also, if the input or output high frequency power of the traveling wave tube is detected and this average power exceeds a predetermined level,
The collector electrode potential of the lowest potential is raised to a voltage near the minimum power consumption during saturation operation, and when the input or output high frequency power of the traveling wave tube falls below a predetermined level , the same collector electrode potential is set. By setting a potential lower than the potential that gives the minimum power consumption during the saturation operation, it is possible to reduce the power consumption when the signal level is low or the saturation output sending time ratio is low.
【手続補正5】[Procedure Amendment 5]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0013[Correction target item name] 0013
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【0013】 また、飽和出力における消費電力の変化
は緩やかで小さい。無信号出力の場合、第3コレクタ電
圧が0.15kV以下になると第3コレクタ電流Ic3 が減少
し、第3コレクタ12よりも電圧が高い、第1コレク
タ、第2コレクタ電流Ic1,Ic2 が増加するために第3コ
レクタ電圧Ec3 と共に消費電力が急激に増加する。Further, the change in power consumption at the saturated output is gradual and small . In case of no signal output , the third collector voltage
When the voltage becomes 0.15 kV or less, the third collector current Ic3 decreases, the voltage is higher than the third collector 12, and the first and second collector currents Ic1 and Ic2 increase, so that the power consumption increases with the third collector voltage Ec3. Increases rapidly.
【手続補正6】[Procedure correction 6]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0017[Correction target item name] 0017
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【0017】 本実施例では第1コレクタ電圧Ec1 を
1.6kV、第2コレクタ電圧Ec2 を1.2kVに設定してあ
る。図5から明らかなようにデュ−ティが0.7以下では
最低の平均消費電力がほぼ最低となる。また、デュ−テ
ィが1.0近くでは最低の平均消費電力よりも約3W高い
値になるにすぎない。In this embodiment, the first collector voltage Ec1 is set to 1.6 kV and the second collector voltage Ec2 is set to 1.2 kV. As is clear from FIG. 5, the lowest average power consumption is almost the lowest when the duty is 0.7 or less. Further, when the duty is near 1.0, the value is only about 3 W higher than the lowest average power consumption.
【手続補正7】[Procedure Amendment 7]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0024[Name of item to be corrected] 0024
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【0024】 例えば、上記出力10W、3段コレクタ
のらせん形進行波管61において、第2コレクタ67の
電位は飽和状態では1.2kVで消費電力を最低にする
が、第3コレクタ68を0.15kV に設定した場合には飽
和出力時の消費電力を最低にする第2コレクタ67の電
位は0.8kV程度になる。この時、飽和出力でのデュ−テ
ィ1における消費電力は約1W(グラフc−d)低下
し、無信号状態における消費電力もわずかに低下する。
また、各デュ−ティにおける消費電力の値は飽和動作
時、及び無信号時の実測値を基に求めてある。図5には
この時の消費電力量の低減効果を示している。For example, in the spiral traveling wave tube 61 with the output of 10 W and the three-stage collector, the potential of the second collector 67 is 1.2 kV in the saturated state to minimize the power consumption, but the third collector 68 has a potential of 0. When set to 15 kV, the potential of the second collector 67 that minimizes the power consumption during saturated output is about 0.8 kV. At this time, the power consumption in the duty 1 at the saturated output decreases by about 1 W (graph cd), and the power consumption in the non-signal state also slightly decreases.
The value of the power consumption in each duty is calculated based on the measured values during the saturation operation and when there is no signal. FIG. 5 shows the effect of reducing the power consumption at this time.
【手続補正8】[Procedure Amendment 8]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0030[Name of item to be corrected] 0030
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【0030】 これはデュ−ティが10%のときに第3
コレクタ68の電圧Ec3が0.15kV になっている状態か
ら入力信号のデューティが急に100%に変化した状態
を仮定すると、第3コレクタ68の電圧Ec3 =0.15kV
では消費電力は最低にならず、Ec3 ≒0.6kVで、消費電
力は最低になる。第3コレクタ68の電圧Ec3 が0.15k
V から増加し始めて0.6kVになるまでの時間は消費電力
は最低とはならない状態になる。This is the third when the duty is 10%.
Or state in which a voltage Ec3 of the collector 68 is in the 0.15kV
The input signal duty suddenly changes to 100%
Assuming the voltage of the third collector 68 Ec3 = 0.15kV
Then, the power consumption does not become the lowest, and Ec3 ≈ 0.6kV, and the power consumption becomes the lowest. The voltage Ec3 of the third collector 68 is 0.15k
The power consumption does not reach the minimum during the time from when it starts to increase from V until it reaches 0.6kV.
【手続補正9】[Procedure Amendment 9]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】図1[Name of item to be corrected] Figure 1
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図1】 [Figure 1]
【手続補正10】[Procedure Amendment 10]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】図5[Name of item to be corrected] Figure 5
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図5】 [Figure 5]
【手続補正書】[Procedure amendment]
【提出日】平成3年2月15日[Submission date] February 15, 1991
【手続補正1】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0013[Correction target item name] 0013
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【0013】 また、飽和出力における消費電力の変化
は緩やかで小さい。無信号出力の場合、第3コレクタ電
圧が0.15kV以下になると第3コレクタ電流Ic3 が減少
し、第3コレクタ12よりも電圧が高い、第1コレク
タ、第2コレクタ電流Ic1,Ic2 が増加するために第3コ
レクタ電圧Ec3 の低下と共に消費電力が急激に増加す
る。Further, the change in power consumption at the saturated output is gradual and small . In the case of no signal output, when the third collector voltage becomes 0.15 kV or less, the third collector current Ic3 decreases, the voltage is higher than the third collector 12, and the first collector current Ic1 and the second collector current Ic2 increase. In addition, the power consumption sharply increases with the decrease of the third collector voltage Ec3.
Claims (3)
レクタ進行波管増幅器において、 非飽和動作時或いは一時的に飽和動作となる間欠的飽和
動作時の前記進行波管の電子銃から最も遠い位置にある
コレクタ電極の電位を前記進行波管の陰極電位を基準と
して、飽和動作時に最小の消費電力量となる該コレクタ
電極の電位よりも小で、かつ非飽和動作時或いは一時的
に飽和動作となる間欠的飽和動作時に消費電力量が最低
または最低値に近い状態になるような所定の電位に設定
することを特徴とする多段コレクタ進行波管増幅器。1. A multistage collector traveling-wave tube amplifier having two or more collector electrodes, wherein the traveling-wave tube is located furthest from the electron gun during non-saturation operation or intermittent saturation operation in which saturation operation is temporarily performed. The potential of the collector electrode at is smaller than the potential of the collector electrode, which is the minimum power consumption during the saturation operation, with reference to the cathode potential of the traveling wave tube, and during the non-saturation operation or the saturation operation temporarily. A multistage collector traveling-wave tube amplifier, which is set to a predetermined potential such that the power consumption becomes a minimum value or a value close to the minimum value during the intermittent saturation operation.
る間欠的飽和動作時の前記進行波管の電子銃から最も遠
い位置にあるコレクタ電極の前記所定の電位は前記飽和
動作時に最小の消費電力となるときの前記最も遠い位置
にあるコレクタ電極の電位の60%以下であることを特
徴とする請求項1記載の多段コレクタ進行波管増幅器。2. The predetermined potential of the collector electrode at the farthest position from the electron gun of the traveling wave tube during the unsaturated operation or the intermittent saturated operation in which the operation is temporarily saturated becomes the minimum during the saturated operation. 2. The multistage collector traveling-wave tube amplifier according to claim 1, wherein the potential of the collector electrode at the farthest position when power consumption is 60% or less.
高周波出力電力の検出手段と、 該検出手段の出力の平均値を求める平均値算出手段を有
し、 該平均値算出手段の出力に応じて前記進行波管の電子銃
から最も遠い位置にある前記コレクタ電極の電位を上昇
させることを特徴とする請求項1記載の多段コレクタ進
行波管増幅器。3. A high-frequency input power or high-frequency output power detecting means for the traveling wave tube, and an average value calculating means for calculating an average value of the output of the detecting means. 2. The multistage collector traveling-wave tube amplifier according to claim 1, wherein the potential of the collector electrode at the farthest position from the electron gun of the traveling-wave tube is raised.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP40605790A JP2850271B2 (en) | 1990-12-25 | 1990-12-25 | Multistage collector traveling wave tube amplifier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP40605790A JP2850271B2 (en) | 1990-12-25 | 1990-12-25 | Multistage collector traveling wave tube amplifier |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH06177673A true JPH06177673A (en) | 1994-06-24 |
JP2850271B2 JP2850271B2 (en) | 1999-01-27 |
Family
ID=18515683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP40605790A Expired - Fee Related JP2850271B2 (en) | 1990-12-25 | 1990-12-25 | Multistage collector traveling wave tube amplifier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2850271B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006089127A1 (en) * | 2005-02-18 | 2006-08-24 | Communication And Power Industries, Inc. | Dynamic depressed collector (ddc) |
-
1990
- 1990-12-25 JP JP40605790A patent/JP2850271B2/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006089127A1 (en) * | 2005-02-18 | 2006-08-24 | Communication And Power Industries, Inc. | Dynamic depressed collector (ddc) |
US7368874B2 (en) | 2005-02-18 | 2008-05-06 | Communications and Power Industries, Inc., Satcom Division | Dynamic depressed collector |
US7888873B2 (en) | 2005-02-18 | 2011-02-15 | Communications And Power Industries, Inc. | Dynamic depressed collector |
Also Published As
Publication number | Publication date |
---|---|
JP2850271B2 (en) | 1999-01-27 |
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