JPH0159764B2 - - Google Patents

Info

Publication number
JPH0159764B2
JPH0159764B2 JP1874384A JP1874384A JPH0159764B2 JP H0159764 B2 JPH0159764 B2 JP H0159764B2 JP 1874384 A JP1874384 A JP 1874384A JP 1874384 A JP1874384 A JP 1874384A JP H0159764 B2 JPH0159764 B2 JP H0159764B2
Authority
JP
Japan
Prior art keywords
phase
mixer
signal wave
signal
wave
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
Application number
JP1874384A
Other languages
Japanese (ja)
Other versions
JPS60163517A (en
Inventor
Takashi Kawaai
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 JP1874384A priority Critical patent/JPS60163517A/en
Publication of JPS60163517A publication Critical patent/JPS60163517A/en
Publication of JPH0159764B2 publication Critical patent/JPH0159764B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00Networks using active elements
    • H03H11/02Multiple-port networks
    • H03H11/16Networks for phase shifting

Description

【発明の詳細な説明】 (発明の技術分野) この発明は、混合器を使用した位相制御回路の
改良に関するものである。
DETAILED DESCRIPTION OF THE INVENTION (Technical Field of the Invention) The present invention relates to an improvement in a phase control circuit using a mixer.

(従来技術) 従来この種の回路は、第1図に示すものであつ
た。図において、信号波Aを0゜と90゜の位相関係
を持たせ分配する90゜分配器1、この出力A1、A2
とB1、B2とをそれぞれ乗算する混合器2、該混
合器2に位相制御信号BをB1、B2の制御信号と
して供給する変換回路4、前記混合器2の出力
C1、C2を加算する結合器A3から構成される。
(Prior Art) A conventional circuit of this type is shown in FIG. In the figure, a 90° distributor 1 distributes a signal wave A with a phase relationship of 0° and 90°, and its outputs A 1 and A 2
a mixer 2 that multiplies and B 1 and B 2 respectively; a conversion circuit 4 that supplies the phase control signal B to the mixer 2 as a control signal for B 1 and B 2 ; and an output of the mixer 2.
It consists of a combiner A3 that adds C 1 and C 2 .

次に動作について説明する。第1図において信
号波Aは90゜分配器1で0゜と90゜の位相関係を持つ
2つの信号A1、A2を作成し混合器2へそれぞれ
供給する。該混合器2は、ダイオードを使用した
平衡形のものであり、制御信号B1、B2の符号に
より0゜、180゜の移相を行なうと共に所定の減衰量
をA1、A2に与えるものである。該混合器2への
制御信号B1、B2は位相制信号B(制御移相量θ)
を変換回路4によりB1=cosθ、B2=sinθとして
得られるものである。前記混合器では、A1
B1々およびA2・B2の乗算を行ないC1、C2として
結合器3に供給する。該結合器A3では、C1
C2の加算が行なわれCとして出力される。この
ことにより信号波Aは、位相制御信号Bにより位
相θだけ移相された信号波Cとして出力される。
Next, the operation will be explained. In FIG. 1, a signal wave A is generated by a 90° distributor 1 into two signals A 1 and A 2 having a phase relationship of 0° and 90°, and supplied to a mixer 2, respectively. The mixer 2 is of a balanced type using diodes, and shifts the phase by 0° and 180° depending on the signs of the control signals B 1 and B 2 and gives a predetermined amount of attenuation to A 1 and A 2 . It is something. The control signals B 1 and B 2 to the mixer 2 are phase control signals B (control phase shift amount θ)
are obtained by the conversion circuit 4 as B 1 =cos θ and B 2 =sin θ. In the mixer, A 1 .
B 1 and A 2 and B 2 are multiplied and supplied to the coupler 3 as C 1 and C 2 . In the coupler A3, C 1 and
Addition of C 2 is performed and output as C. As a result, the signal wave A is output as a signal wave C whose phase is shifted by the phase θ by the phase control signal B.

ここで、この位相制御回路の原理について説明
する。
Here, the principle of this phase control circuit will be explained.

信号波Aは、αsin wt(α:振幅、wt:角周波
数)で表現されるものとする。該信号波Aは90゜
分波器2でA1=α1sin wt、A2=−α2coo wtに2
分配され前記混合器2に加えられる。また位相制
御信号B(制御移相量θ)は、前記変換回路4で
制御位相量θに応じて、B1=cosθ、B2=sinθが
作成され前記混合器2にそれぞれ加えられる。前
記混合器2では、A1・B1、A2・B2の乗算が行な
われC1、C2が得られる。
It is assumed that the signal wave A is expressed by α sin wt (α: amplitude, wt: angular frequency). The signal wave A is divided into A 1 = α 1 sin wt and A 2 = −α 2 coo wt by the 90° splitter 2.
It is distributed and added to the mixer 2. Further, from the phase control signal B (control phase shift amount θ), B 1 =cos θ and B 2 =sin θ are created in the conversion circuit 4 according to the control phase amount θ, and are applied to the mixer 2, respectively. In the mixer 2, multiplication of A 1 ·B 1 and A 2 ·B 2 is performed to obtain C 1 and C 2 .

C1=α1sin wt・cosθ、C2=−α2cos wt・
sinθC1、C2は、前記結合器A3で加算されCを得
る。
C 1 = α 1 sin wt・cosθ, C 2 = −α 2 cos wt・
sinθC 1 and C 2 are added in the coupler A3 to obtain C.

C=C1+C2=α1sin wt・cosθ−α2cos w
t・sinθ=α3sin(wt−θ)………式(1) 式(1)は、信号波A=αsin wtを、位相制御信号
Bにより位相量θだけ移相したことを表わすもの
である。
C=C 1 +C 21 sin wt・cosθ−α 2 cos w
t・sinθ=α 3 sin(wt−θ)……Equation (1) Equation (1) expresses that the signal wave A=αsin wt is shifted by the phase amount θ by the phase control signal B. be.

第2図は、前記第1図の従来回路における位相
制御量対入力移相量の特性図を表わしている。本
図に示す3本の線は、信号波Aの異なる入力レベ
ルに対する特性であり、これは、入力レベルが変
化することにより位相感度(入出力移相量/位相
制御量)が変化していることを示したものであ
る。
FIG. 2 shows a characteristic diagram of the amount of phase control versus the amount of input phase shift in the conventional circuit shown in FIG. The three lines shown in this figure are the characteristics of signal wave A for different input levels, which means that the phase sensitivity (input/output phase shift amount/phase control amount) changes as the input level changes. This shows that.

従来の位相制御回路は、以上のように構成され
ている。この回路では、乗算器として使用してい
る混合器2のダイオード2乗特性による非直線性
のため、位相制御感度が信号波の入力レベル変化
により変化するという欠点があり、信号波の入力
レベルが変化する様な回路構成のシステムには、
位相制御回路として使用出来ない欠点があつた。
The conventional phase control circuit is configured as described above. This circuit has the disadvantage that the phase control sensitivity changes with changes in the input level of the signal wave due to the nonlinearity due to the diode square characteristic of the mixer 2 used as a multiplier. For systems with changing circuit configurations,
It had the disadvantage that it could not be used as a phase control circuit.

(発明の概要) この発明は、上記のような従来のものの欠点を
除去するためになされたもので、信号波と搬送波
を結合させ乗算器である混合器の動作領域を搬送
波レベルで決定し、信号波の入力レベルが変化し
ても位相制御感度が変化しない位相制御回路を提
供することを目的としている。
(Summary of the Invention) This invention was made to eliminate the drawbacks of the conventional ones as described above, and it combines a signal wave and a carrier wave and determines the operating region of a mixer, which is a multiplier, at the carrier wave level. It is an object of the present invention to provide a phase control circuit whose phase control sensitivity does not change even if the input level of a signal wave changes.

(発明の実施例) 以下この発明の一実施例を図について説明す
る。第3図において第1図と同一符号は同一又は
相当部分を示す。信号波Aと搬送波Bを結合させ
る結合器5、結合された信号Eを0゜と90゜の位相
関係を持たせ分配する90゜分配器1、E1、E2
B1、B2とをそれぞれ乗算する混合器2、該混合
器2に位相制御信号BをB1、B2の制御信号とし
て供給する変換回路4、前記混合器2の出力F1
F2を加算する結合器3、Fの信号より所望の信
号波のみを取り出すフイルター回路6から構成さ
れる。
(Embodiment of the Invention) An embodiment of the invention will be described below with reference to the drawings. In FIG. 3, the same reference numerals as in FIG. 1 indicate the same or corresponding parts. A coupler 5 that combines signal wave A and carrier wave B, a 90° distributor 1 that distributes the combined signal E with a phase relationship of 0° and 90°, E 1 , E 2
A mixer 2 that multiplies B 1 and B 2 respectively, a conversion circuit 4 that supplies the phase control signal B to the mixer 2 as a control signal for B 1 and B 2 , an output F 1 of the mixer 2,
It consists of a coupler 3 that adds F2 , and a filter circuit 6 that extracts only a desired signal wave from the F signal.

次に動作について説明する。第3図において信
号波Aは結合器5により、混合器2の動作領域を
決定する搬送波Dと結合される。この搬送波Dの
レベルは、信号波Aに対して充分大きい値に設定
され、その周波数は、後段の前記混合器2で信号
波Aと搬送波Dが乗算されることにより作り出さ
れる周波数成分を考慮に入れて選択する。この結
合信号Eは90゜分配器1に加えられ0゜と90゜位相関
係を持つsinデータのE1とcosデータのE2に分配さ
れ乗算器である前記混合器2に加えられる。該混
合器2は、ダイオードを使用した平衡形のもの
で、RF端子(RF)、LOCAL端子(LO)及びIF
端子(IF)を有するものである。本実施例では、
RF端子に前記E1、E2をIF端子に制御信号B1、B2
を入力しLOCAL端子より出力信号C1、C2を得ら
れるよう構成している。また、該混合器に制御信
号として加えられるB1、B2は、位相制御信号B
(制御移相量θ)を変換回路4で、cosθデータの
B1とsinθデータのB2として作成される。前記混
合器2では、搬送波Dにより動作領域が決定され
信号波と搬送波が存在する状態でE1・B1及び
E2・B2の乗算が行なわれF1、F2の信号が得られ
結合器3でF1とF2が加算され信号Fが得られる。
該F信号は、フイルター回路6に供給され、所望
の信号波のみを取り出しGとして出力している。
Next, the operation will be explained. In FIG. 3, the signal wave A is combined by a combiner 5 with a carrier wave D, which determines the operating range of the mixer 2. The level of this carrier wave D is set to a sufficiently large value with respect to the signal wave A, and its frequency is determined by taking into account the frequency component created by multiplying the signal wave A and the carrier wave D in the mixer 2 at the subsequent stage. Enter and select. This combined signal E is applied to a 90° distributor 1, divided into sine data E 1 and cos data E 2 having a 0° and 90° phase relationship, and then added to the mixer 2, which is a multiplier. The mixer 2 is a balanced type using diodes, and has an RF terminal (RF), a LOCAL terminal (LO), and an IF terminal.
It has a terminal (IF). In this example,
The above E 1 and E 2 are connected to the RF terminal, and the control signals B 1 and B 2 are connected to the IF terminal.
is input and output signals C 1 and C 2 are obtained from the LOCAL terminal. Moreover, B 1 and B 2 added to the mixer as control signals are phase control signals B
(control phase shift amount θ) is converted into cosθ data by conversion circuit 4.
It is created as B 1 and B 2 of sinθ data. In the mixer 2, the operating region is determined by the carrier wave D, and E 1 , B 1 and
Multiplication of E 2 ·B 2 is performed to obtain signals F 1 and F 2 , and F 1 and F 2 are added in the combiner 3 to obtain signal F.
The F signal is supplied to a filter circuit 6, which extracts only a desired signal wave and outputs it as G.

位相制御の動作原理は、従来形と同様であり、
位相制御信号Bの位相量θが信号波Aに加えられ
るものである。第4図は、本実施回路における位
相制御量対入出力移相量特性を表わしているもの
で本実施例の回路構成を使用することにより、信
号波の入力レベルを変化しても位相感度は変化せ
ず一定となつていることを示すものである。
The operating principle of phase control is the same as the conventional type,
The phase amount θ of the phase control signal B is added to the signal wave A. Figure 4 shows the phase control amount vs. input/output phase shift amount characteristics in this embodiment circuit. By using the circuit configuration of this embodiment, even if the input level of the signal wave is changed, the phase sensitivity remains constant. This shows that it does not change and remains constant.

なお、上記実施例では、搬送波を混合器2に入
力する手段として90゜分配器1の入力端で結合器
5を設けこれにより混合器2のRF端子側に搬送
波を注入した場合について説明したが、この入力
手段としては、混合器2のLOCAL端子側、ある
いはIF端子側に結合器を設け、これにより混合
器2の出力側(LO)あるいは制御信号側(IF)
で搬送波を注入してもよい、このようにしても上
記実施例と同様の効果が得られる。
In the above embodiment, a case was explained in which a coupler 5 was provided at the input end of the 90° distributor 1 as a means for inputting the carrier wave to the mixer 2, and the carrier wave was injected into the RF terminal side of the mixer 2. As this input means, a coupler is provided on the LOCAL terminal side or the IF terminal side of the mixer 2, and this allows the output side (LO) or control signal side (IF) of the mixer 2 to be input.
A carrier wave may also be injected in this manner, and the same effect as in the above embodiment can be obtained.

(発明の効果) 以上のように、本発明によれば、搬送波により
動作領域が決定される混合器により信号波を搬送
波が存在する状態で位相制御信号と乗算するよう
にしたので信号波レベルが変化しても同一の位相
感度を有する位相制御回路が簡単な回路構成で安
価に得られる効果がある。
(Effects of the Invention) As described above, according to the present invention, since the signal wave is multiplied by the phase control signal in the presence of the carrier wave by the mixer whose operating region is determined by the carrier wave, the signal wave level can be increased. There is an effect that a phase control circuit having the same phase sensitivity even when the phase changes can be obtained with a simple circuit configuration and at low cost.

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

第1図は従来の位相制御回路を示す系統図、第
2図はその位相制御量と入出力移相量との特性
図、第3図はこの発明の一実施例による位相制御
回路の系統図、第4図はこの位相制御量と入出力
移相量との特性図である。 1……90゜分配器、2……混合器、3……結合
器A、4……変換回路、5……結合器B、6……
フイルター回路、なお、図中、同一符号は同一又
は、相当部分を示す。
Fig. 1 is a system diagram showing a conventional phase control circuit, Fig. 2 is a characteristic diagram of its phase control amount and input/output phase shift amount, and Fig. 3 is a system diagram of a phase control circuit according to an embodiment of the present invention. , FIG. 4 is a characteristic diagram of the phase control amount and the input/output phase shift amount. 1...90° distributor, 2...Mixer, 3...Coupler A, 4...Conversion circuit, 5...Coupler B, 6...
In the filter circuit, the same reference numerals indicate the same or corresponding parts in the figures.

Claims (1)

【特許請求の範囲】[Claims] 1 搬送波を信号波で変調し信号波と搬送波を結
合する結合器と、この結合信号波を90゜位相の異
なる二つの結合信号波に分配する90゜分配器と、
90゜位相の異なる各結合信号波を各々90゜位相の異
なる移相制御信号波で各々平衝変調することによ
り前記結合信号波と移相制御信号波とを混合する
混合器と、この各混合器の出力信号波を合成し、
その中から元の信号波成分を抽出するフイルタ回
路とにより構成されることを特徴とする位相制御
回路。
1. A coupler that modulates a carrier wave with a signal wave and combines the signal wave and the carrier wave, a 90° distributor that divides this combined signal wave into two combined signal waves with a 90° phase difference,
a mixer that mixes the combined signal wave and the phase-shifted control signal wave by modulating each combined signal wave having a 90° phase difference with a phase-shifted control signal wave having a 90° phase difference; synthesize the output signal waves of the
1. A phase control circuit comprising a filter circuit for extracting an original signal wave component from the phase control circuit.
JP1874384A 1984-02-03 1984-02-03 Phase control circuit Granted JPS60163517A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1874384A JPS60163517A (en) 1984-02-03 1984-02-03 Phase control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1874384A JPS60163517A (en) 1984-02-03 1984-02-03 Phase control circuit

Publications (2)

Publication Number Publication Date
JPS60163517A JPS60163517A (en) 1985-08-26
JPH0159764B2 true JPH0159764B2 (en) 1989-12-19

Family

ID=11980133

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1874384A Granted JPS60163517A (en) 1984-02-03 1984-02-03 Phase control circuit

Country Status (1)

Country Link
JP (1) JPS60163517A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3834843A1 (en) * 1988-10-13 1990-04-19 Kramer Guenter PHASE SHIFT FOR HIGH FREQUENCY SIGNALS

Also Published As

Publication number Publication date
JPS60163517A (en) 1985-08-26

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