JPH01319303A - Filter type power synthesizer - Google Patents

Filter type power synthesizer

Info

Publication number
JPH01319303A
JPH01319303A JP15396488A JP15396488A JPH01319303A JP H01319303 A JPH01319303 A JP H01319303A JP 15396488 A JP15396488 A JP 15396488A JP 15396488 A JP15396488 A JP 15396488A JP H01319303 A JPH01319303 A JP H01319303A
Authority
JP
Japan
Prior art keywords
power
input terminal
input
terminal
frequency
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
Application number
JP15396488A
Other languages
Japanese (ja)
Inventor
Tatsuhiro Oba
大場 達博
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP15396488A priority Critical patent/JPH01319303A/en
Publication of JPH01319303A publication Critical patent/JPH01319303A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To make the combiner small in size and to reduce the cost by short- circuiting an isolation terminal with a short-circuit plate without using a large power non-reflective terminator. CONSTITUTION:The isolation terminal ISO is short-circuited electrically with a short-circuit plate 2. Thus, with the input of a carrier having a frequency at the reflecting band of a BPF(band pass filter) to the 1st input terminal IN1, the power of the carrier is all reflected to the 1st input terminal IN1, and with the input of a carrier having a frequency at the reflecting band of a BPF(band pass filter) to the 2nd input terminal IN2, the power of the carrier is all reflected to the 2nd input terminal IN1, and since a protective function against an excess reflection power is provided to a power amplifier connecting to the input terminals IN1, IN2, no hindrance is caused especially. Thus, non-reflective terminator for large power is required and miniaturization and low-cost are attained.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は周波数の異なる2台の大電力増幅器の出力を
合成するフィルタ形電力合成器に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a filter-type power combiner that combines the outputs of two large power amplifiers with different frequencies.

〔従来の技術〕[Conventional technology]

第2図は例えばコムサントレビュー第5巻第1号 19
75年春(′cOMSAT REVIEW VOL、 
5 No。
Figure 2 shows, for example, Comsant Review Vol. 5 No. 1 19
Spring 1975 ('cOMSAT REVIEW VOL,
5 No.

I 5PRING 1975’)のFIG、 1に示さ
れ几従来のフィルタ形電力合成器の構成を示すブロック
図で。
FIG. 1 is a block diagram showing the configuration of a conventional filter-type power combiner.

(1)はフィルタ形電力合成器で、第12よび第2のハ
イブリッド(1−1)、 (1−2)、並びに、第1&
よび第2のバンドパス・フィルタ(BPF)(lコ3)
(1−4)からなる。(3)および(4)はそれぞれ第
1および第2の大電力増幅器(HPAI)、(HPA2
”)。
(1) is a filter type power combiner, which includes the twelfth and second hybrids (1-1), (1-2), and the first &
and a second bandpass filter (BPF) (lco3)
It consists of (1-4). (3) and (4) are the first and second high power amplifiers (HPAI), (HPA2
”).

(5)は出力端子(OUT)に接続され次アンテナ、(
6)はアイソレーション端子(180)に接続された無
反射終端器である。
(5) is connected to the output terminal (OUT) and the next antenna, (
6) is a non-reflection terminator connected to the isolation terminal (180).

次に動作について説明する。周波数F、の搬送波を増幅
する第1の大電力増幅器(3)の出力をフィルタ形電力
合成器(1)の第1の入力端子INNに接続し、周波数
F、の搬送波を増幅する第2の大電力増幅器(4)の出
力t−フィルタ形電力合成器(1)の第2の入力端子I
N2に接続する。フィルタ形電力合成器「1)の第1.
第2のBPF(1−3)、(1−4)はともに周波数F
1を通過帯域に含み、周波数F、は反射帯域にあるもの
を用いている。
Next, the operation will be explained. The output of the first high-power amplifier (3) for amplifying the carrier wave of frequency F is connected to the first input terminal INN of the filter-type power combiner (1), and the output of the first high-power amplifier (3) for amplifying the carrier wave of frequency F is connected to Output of large power amplifier (4) t-Second input terminal I of filter type power combiner (1)
Connect to N2. Filter-type power combiner "1) 1st.
The second BPF (1-3) and (1-4) both have a frequency F
1 is included in the pass band, and the frequency F is in the reflection band.

第3図はフィルタ形電力合成器の原理図である。FIG. 3 is a diagram showing the principle of a filter type power combiner.

第1の入力端子INIに入力された電力PF+は第1の
ハイブリッド(l−t)によって振幅が等しく90°の
位相差を有する2つの電圧ベクトルに分割される。この
2つの電圧ベクトルの周波数はいずれもFlであり、そ
れぞれ第1および第2のBPF(1−3)、 (1−4
)を通過後、第2のハイブリッド(1−2)によってベ
クトル合成され、出力端子ouTrc電力y、、  <
 ytり踵p′F、 <p、、 )カ生−rル。
The power PF+ input to the first input terminal INI is divided by the first hybrid (lt) into two voltage vectors having equal amplitude and a phase difference of 90°. The frequencies of these two voltage vectors are both Fl, and the frequencies of the first and second BPFs (1-3) and (1-4
), vector synthesis is performed by the second hybrid (1-2), and the output terminal outTrc power y,, <
ytri heel p'F, <p,, ) Kaori-ruru.

一方、第2の入力端子IN2から入力され比電力PFg
は第2のハイブリッド(l−2)によって電力Py、の
場合と同様振幅が等しく900の位相差を有する2つの
電圧ベクトルに分割され、第1′s?工び第20BPF
(1−3)、(1−4)に入力されるが、これら2つの
電圧ベクトルの周波数F2はこれらのBPF (L−3
)、 (1−4)の反射帯域にあり、各々反射されるが
、第2のハイブリッド(1−2)VC,cつて合成され
る出力端子OUTに電力p’、r、<7?、だし、PF
!<PF2)として生じ、アンテナ(5)から放射され
る。
On the other hand, the specific power PFg input from the second input terminal IN2
is divided by the second hybrid (l-2) into two voltage vectors with equal amplitude and a phase difference of 900, as in the case of the power Py, and the first 's? Work No. 20 BPF
(1-3) and (1-4), but the frequency F2 of these two voltage vectors is determined by these BPF (L-3
), (1-4) and are respectively reflected, but the power p', r,<7? , dashi, PF
! <PF2) and is radiated from the antenna (5).

6 GHz帯フィルタ形電力合成器(BPF帯域幅36
MHz)の例では、第1の入力端子INIから出力端子
0UTK至る通過損失は約0.5dB、第2の入力端子
IN2から出力端子OUTに至る通過損失は約0.2d
Bであり、低損失の電力合成器として、特に衛星通信用
地球局の大電力増幅器の出力合成用に用いられる。
6 GHz band filter type power synthesizer (BPF bandwidth 36
MHz), the passing loss from the first input terminal INI to the output terminal 0UTK is approximately 0.5 dB, and the passing loss from the second input terminal IN2 to the output terminal OUT is approximately 0.2 d.
B, and is used as a low-loss power combiner, particularly for combining the outputs of high-power amplifiers in earth stations for satellite communications.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

従来のフィルタ形電力合成器では、両入力端子lNl5
’よびIN2に正しい周波数帯域の搬送波を入力して−
る限り、アイソレーション端子I S O−S 出力さ
れる電力は通常第1の大力端子INIまたは第2の入力
端子IN2の最大電力値の17100程度であり、無反
射終端器(6) Fi小電力用のもので工い。ところが
、第1の入力端子INIへ搬送波周波数が第1、第2の
BPF(l−a)、(1−4)の反射帯域の場合、また
は第2の入力端子IN2への搬送波周波数が両BPF(
1−3)、(L−4)の通過帯域の場合にけ第1の大電
力増幅器(3)i九は第2の大電力増幅器(4)の最大
出力(最悪の場合、雨量大出力の和)がアイソレーショ
ン端子ISOに生じ、無反射終端器(6)が焼損する。
In the conventional filter type power combiner, both input terminals lNl5
' and input the carrier wave of the correct frequency band to IN2.
As long as the isolation terminal IS Use whatever you have for it. However, if the carrier frequency to the first input terminal INI is in the reflection band of the first and second BPFs (1-a), (1-4), or if the carrier frequency to the second input terminal IN2 is in the reflection band of both BPFs, (
1-3), (L-4), the first high power amplifier (3) i9 is the maximum output of the second high power amplifier (4) (in the worst case, the maximum output of ) occurs at the isolation terminal ISO, and the non-reflection terminator (6) burns out.

これを防止するtめに、無反射終端器(6)に大電力用
のものを用いる必要があり、装置が大形化し、高価にな
るなどの問題点かあつ友。
In order to prevent this, it is necessary to use a high-power non-reflection terminator (6), which causes problems such as the device becoming larger and more expensive.

この発明は上記のような問題点を解消する之めになされ
たもので、大電力用の無反射終端器を不要とするフィル
タ形電力合成器を得ることを目的とする。
The present invention was made to solve the above-mentioned problems, and it is an object of the present invention to provide a filter type power combiner that does not require a high-power non-reflection terminator.

〔課題を解決するための手段〕[Means to solve the problem]

この発明に係るフィルタ形電力合成器は、そのアイソレ
ーション端子を短絡板で電気的に短絡させるようにし次
ものである。
The filter-type power combiner according to the present invention has its isolation terminals electrically short-circuited by a short-circuit plate.

〔作用〕[Effect]

この発明になるフィルタ形電力合成器では、アイソレー
ション端子全短絡板で短絡したので、第1の入力端子I
NI KBPFの反射帯域となる周波数の搬送波が入力
された場合、この搬送波の電力はすべて第1の入力端子
IN1へ反射され、また、第2の入力端子IN2にBP
Fの通過帯域となる周波数の搬送波が人力された場合、
この搬送波の買方はすべて第2の入力端子IN2へ反射
されるが、これらの入力端子IN1. IN2に接続さ
れる電力増幅器には過大反射電力に対する保護機能を持
tせているので、特に支障を生じない。
In the filter type power combiner according to the present invention, since the isolation terminals are all short-circuited by the short-circuit board, the first input terminal I
When a carrier wave with a frequency that is in the reflection band of the NI KBPF is input, all the power of this carrier wave is reflected to the first input terminal IN1, and the BP is input to the second input terminal IN2.
When the carrier wave of the frequency that becomes the pass band of F is manually created,
All of this carrier wave is reflected to the second input terminal IN2, but these input terminals IN1. Since the power amplifier connected to IN2 has a protection function against excessive reflected power, no particular problem occurs.

〔実施例〕〔Example〕

第1図はこの発明の一実施例の構成をしめずブロック図
で、フィルタ形電力合成器(1)のアイソレーション端
子ISOに無反射終端器の代わりに短絡板(2)ヲ使用
しtこと以外は第2図の従来例と同一である。
FIG. 1 is a block diagram of an embodiment of the present invention, in which a shorting plate (2) is used instead of a non-reflection terminator at the isolation terminal ISO of a filter type power combiner (1). The rest is the same as the conventional example shown in FIG.

この実施例に2いて、第1の入力端子INLから両BP
F (1−3)、 (1−4)の反射帯域となる周波数
の電力を入力した場合、第1のハイブリッド(1−1)
に工って反射された後、再度第1のハイブリッド(1−
1)によってベクトル合成されてアイソレーション端子
ISOに現れるが、短絡板(2)によって完全反射され
るので、更に第1のハイブリッド(+−1)によるベク
トル分割、両BPF (1−3)、 (1−4)IIC
Lる反射、尚更に第1のハイブリッド(]−1)による
ベクトル合成を受けて第1の入力端子INIへ反射され
る。
In this embodiment, from the first input terminal INL to both BP
When inputting the power of the frequency that is the reflection band of F (1-3), (1-4), the first hybrid (1-1)
After being reflected, the first hybrid (1-
1) and appear at the isolation terminal ISO, but since it is completely reflected by the shorting plate (2), the vector is further divided by the first hybrid (+-1), both BPFs (1-3), ( 1-4) IIC
The signal is further reflected to the first input terminal INI after vector synthesis by the first hybrid (]-1).

一方、第2の入力端子IN2から両BPF (1−a 
)。
On the other hand, from the second input terminal IN2 to both BPF (1-a
).

(1−4)の通過帯域となる周波数の電力全入力し之場
合、第2の入力端子IN2から周波数F、の電力を入力
し次場合と全くどうようにして、アイソレーション端子
ISOへ入力電力の大部分が到達するが、短絡板[2+
による完全反射を受けて、第2の入力端子IN2へその
殆ど全部の電力が反射され出てくる。
(1-4) If you input all the power at the frequency that is the passband, input the power at frequency F from the second input terminal IN2, and input the power to the isolation terminal ISO in exactly the same way as the next case. Most of the short circuit plate [2+
Almost all of the power is reflected and output to the second input terminal IN2.

第1.第2の入力端子IN1. IN2にそれぞれ接続
される第12よび第2の大電力増幅器+31. (4)
は通常第4図に示すように、過大反射電力に対する保護
回路が装備されて−る。第4図に2いて、α0は高周波
増幅を行うクライストロン管ま九に進行波管などの送信
管、(ロ)は高周波人力端子、(6)は高周波出力端子
、a3は高周波入力端子(ロ)から増幅用送信管部への
導入路に設けられたPINダイオードスイッチ、α4は
増幅用送信管αqから高周波出力端子@への出力路に設
けられ念方向性結合器、(ト)は方向性結合器α尋のと
ころを逆流しようとする高周波電力を検波する検波器、
QlSは検波器(至)に出力が有ったときにその出力に
よって送信管αQへの供給高電圧を遮断し、i九はPI
Nダイオードスイッチ(至)1に遮断する保護回路であ
る。
1st. Second input terminal IN1. twelfth and second high power amplifiers +31 . connected to IN2, respectively; (4)
Usually, as shown in FIG. 4, a protection circuit against excessive reflected power is provided. In Fig. 4, 2, α0 is a klystron tube for high frequency amplification, and a transmission tube such as a traveling wave tube, (b) is a high frequency manual terminal, (6) is a high frequency output terminal, and a3 is a high frequency input terminal (b). α4 is a PIN diode switch installed in the introduction path from the amplification transmission tube αq to the high-frequency output terminal @, and (G) is a directional coupler. A detector that detects high-frequency power that attempts to flow backwards through the device,
QlS cuts off the high voltage supplied to the transmitting tube αQ by the output when the detector (to) has an output, and i9 is the PI
This is a protection circuit that shuts off the N diode switch (to) 1.

従って、前述のようにフィルタ形電力合成器【第1の第
1の入力端子lN第1友は第2の入力端子IN2へ誤っ
た周波数の搬送波を送信して完全反射されて戻ってきた
場合には、この保護回路の機能によって大電力増幅器へ
の高周波入力が遮断されるか、ま九は送信管への供給高
電圧が遮断されるので、短時間であやまつt周波数の搬
送波は断となりシステム運用上問題はない。
Therefore, as mentioned above, if the filter-type power combiner [the first input terminal IN2 of the filter-type power combiner transmits a carrier wave of an incorrect frequency to the second input terminal IN2 and returns after being completely reflected, The function of this protection circuit cuts off the high frequency input to the high power amplifier, or the high voltage supplied to the transmitting tube, so the carrier wave of the incorrect frequency is cut off in a short time and system operation is interrupted. There is no problem above.

〔発明の効果〕〔Effect of the invention〕

以上のように、この発明によればフィルタ形電力合成器
に2けるアイソレーション端子に大電力無反射終端器を
用いず、短絡板としたので、装置の小形化が可能となり
、安価にできるという効果がある。
As described above, according to the present invention, a high-power non-reflection terminator is not used for the isolation terminals of the two isolation terminals of the filter-type power combiner, but a short circuit plate is used, so the device can be made smaller and cheaper. effective.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図はこの発明の一実施例になるフィルタ形電力合成
器の構成を示すブロック図、第2図は従来のフィルタ形
電力合成器の構成を示すブロック図、第3図はフィルタ
形電力合成器の電力合成原理図、第4図は大電力増幅器
に2ける過大反射電力に対する保護回路の一例を示す図
である。 図において、(1)はフィルタ形電力合成器、INIは
第1の入力端子、IN2は第2の入力端子、 OUTは
出力端子、ISOはアイソレーション端子、(1−1)
は第1のハイブリッド、(1−2)は第2のハイブリッ
ド、(1−3)は第1のBPF’、(1−4社第2のB
PF%区2)は短絡板、(3)は第1の大電力増幅器、
(4)は第2の大電力増幅器である。 な訃、図中、同一符号は同一、ま九は相当部分を示す。
FIG. 1 is a block diagram showing the configuration of a filter-type power combiner according to an embodiment of the present invention, FIG. 2 is a block diagram showing the configuration of a conventional filter-type power combiner, and FIG. 3 is a block diagram showing the configuration of a filter-type power combiner according to an embodiment of the present invention. FIG. 4 is a diagram showing an example of a protection circuit against excessive reflected power in a large power amplifier. In the figure, (1) is a filter type power combiner, INI is the first input terminal, IN2 is the second input terminal, OUT is the output terminal, ISO is the isolation terminal, (1-1)
is the first hybrid, (1-2) is the second hybrid, (1-3) is the first BPF', (1-4 is the second BPF')
PF% section 2) is a shorting plate, (3) is the first high power amplifier,
(4) is a second high power amplifier. In the figures, the same numerals are the same, and the numerals in the figures indicate corresponding parts.

Claims (1)

【特許請求の範囲】[Claims] (1)第1の電力増幅器の出力が接続される第1の入力
端子とアイソレーシヨン端子とが第1の側に設けられ、 第2の電力増幅器の出力が接続される第2の入力端子と
出力端子とが第2の側に設けられ、上記第1の側と上記
第2の側との間に第1のハイブリッド、2つのバンドパ
スフィルタおよび第2のハイブリッドが順次接続されて
なるものにおいて、 上記アイソレーシヨン端子を短絡したことを特徴とする
フィルタ形電力合成器。
(1) A first input terminal to which the output of the first power amplifier is connected and an isolation terminal are provided on the first side, and a second input terminal to which the output of the second power amplifier is connected. and an output terminal are provided on a second side, and a first hybrid, two bandpass filters, and a second hybrid are sequentially connected between the first side and the second side. A filter type power combiner, characterized in that the isolation terminal is short-circuited.
JP15396488A 1988-06-21 1988-06-21 Filter type power synthesizer Pending JPH01319303A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15396488A JPH01319303A (en) 1988-06-21 1988-06-21 Filter type power synthesizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15396488A JPH01319303A (en) 1988-06-21 1988-06-21 Filter type power synthesizer

Publications (1)

Publication Number Publication Date
JPH01319303A true JPH01319303A (en) 1989-12-25

Family

ID=15573917

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15396488A Pending JPH01319303A (en) 1988-06-21 1988-06-21 Filter type power synthesizer

Country Status (1)

Country Link
JP (1) JPH01319303A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008526155A (en) * 2004-12-31 2008-07-17 ケイエムダブリュー インコーポレイテッド Wireless communication base station sharing device
JP2009528759A (en) * 2006-02-28 2009-08-06 ケーエムダブリュ・インコーポレーテッド Wireless communication base station sharing device
US8046027B2 (en) 2004-12-31 2011-10-25 Kmw Inc. Apparatus for using a wireless communication base station in common

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008526155A (en) * 2004-12-31 2008-07-17 ケイエムダブリュー インコーポレイテッド Wireless communication base station sharing device
US8046027B2 (en) 2004-12-31 2011-10-25 Kmw Inc. Apparatus for using a wireless communication base station in common
JP2009528759A (en) * 2006-02-28 2009-08-06 ケーエムダブリュ・インコーポレーテッド Wireless communication base station sharing device
US7941187B2 (en) 2006-02-28 2011-05-10 Kmw Inc. Apparatus for using a wireless communication base station in common

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