JPS6240667B2 - - Google Patents
Info
- Publication number
- JPS6240667B2 JPS6240667B2 JP54026687A JP2668779A JPS6240667B2 JP S6240667 B2 JPS6240667 B2 JP S6240667B2 JP 54026687 A JP54026687 A JP 54026687A JP 2668779 A JP2668779 A JP 2668779A JP S6240667 B2 JPS6240667 B2 JP S6240667B2
- Authority
- JP
- Japan
- Prior art keywords
- waveguide
- microwave
- stripline
- integrated circuit
- circuit board
- 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
Links
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 230000010355 oscillation Effects 0.000 claims description 9
- 230000005684 electric field Effects 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 5
- 230000005672 electromagnetic field Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 6
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/03—Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
- G01S7/032—Constructional details for solid-state radar subsystems
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Waveguide Connection Structure (AREA)
- Radar Systems Or Details Thereof (AREA)
Description
【発明の詳細な説明】
本発明はマイクロ波回路装置、とくにマイクロ
波集積回路を導波管、ホーンアンテナ等のマイク
ロ波導波体に内装した回路装置に係るものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a microwave circuit device, and particularly to a circuit device in which a microwave integrated circuit is embedded in a microwave waveguide such as a waveguide or a horn antenna.
自動車の対地速度測定用ドツプラレーダなどの
近距離利用レーダは、他の無線設備への影響など
の観点から、送信電力をきわめて微弱な電力レベ
ル（１μＷ以下）にする必要があり、一方受信感
度はできるだけ高くする必要がある。 For short-range radars such as Doppler radar for measuring the ground speed of automobiles, the transmission power must be kept at an extremely weak power level (1 μW or less) from the perspective of affecting other wireless equipment, while the receiving sensitivity must be kept as low as possible. need to be higher.
更にこの種の装置は実装上、漏洩電力の調節、
あるいは信号出力への局発雑音の低減が必要とな
る。 Furthermore, this type of device requires adjustment of leakage power,
Alternatively, it is necessary to reduce local noise to the signal output.
したがつて本発明の目的は送信電力は微弱に
し、かつ一方受信感度は高くできるマイクロ波回
路装置を実現することであり、更に装置実装の場
合、漏洩電力、すなわち出力信号レベルの調節な
らび、信号出力への局発雑音の低減が可能なマイ
クロ波回路装置を提供することである。 Therefore, an object of the present invention is to realize a microwave circuit device that can reduce the transmission power while increasing the reception sensitivity. An object of the present invention is to provide a microwave circuit device capable of reducing local noise to the output.
本発明は上記目的を達成するため、マイクロ波
集積回路を導波管（ホーンアンテナの給電部も含
む）に内装したマイクロ波回路装置において、マ
イクロ波集積回路板に形成される発振電力を供給
する直線状ストリツプラインに対称に２つのミク
サダイオードを配置し、かつ、上記ダイオードを
含み、上記ストリツプラインとの夫々の結合線路
が上記ストリツプラインと直交するように形成
し、かつ、上記ミクサダイオードを含む接続線路
は導波管の電界と平行（磁界と直交）となり、上
記電力を供給する線路は導波管の電界と直交する
ように上記集積回路板を導波管の短絡板の近傍に
配置装着して形成されたことを特徴とする。 In order to achieve the above object, the present invention supplies oscillation power formed on a microwave integrated circuit board in a microwave circuit device in which a microwave integrated circuit is installed in a waveguide (including a power feeding part of a horn antenna). Two mixer diodes are disposed symmetrically on a linear stripline, and each of the mixer diodes including the diode is formed such that each coupling line with the stripline is orthogonal to the stripline, and The connecting line including the diode is parallel to the electric field of the waveguide (perpendicular to the magnetic field), and the line supplying the power is connected to the integrated circuit board near the shorting plate of the waveguide so that it is perpendicular to the electric field of the waveguide. It is characterized by being formed by being placed and attached to.
上記本発明によるマイクロ波回路装置では、発
振電力は電力供給ストリツプラインから、上記ラ
インに直交して配置された二つのミクサダイオー
ドの接続線を介して導波管に放出されるが、上記
２つの接続線から導波管に放出される電磁界の極
性が逆であり、また電力供給用の線路は、導波管
の電界に直交しているのでそれらのわずかに不平
衝成分が送信出力となるので、その電力は微弱と
なる。この電力の制御はこの不平衝の度合を制御
する手段を付加することによつて行なうことがで
きる。又受信時はホーンアンテナ、導波管を介し
て受信電波が二つのミクサダイオードに加えられ
るが、この場合の電力は微弱であるが二つの出力
は相加されるので、一定の受信電力を得ることが
できる。 In the microwave circuit device according to the present invention, the oscillation power is emitted from the power supply stripline to the waveguide via the connection line between the two mixer diodes arranged orthogonally to the line. The polarities of the electromagnetic fields emitted from the two connecting lines into the waveguide are opposite, and the power supply lines are perpendicular to the waveguide's electric field, so their slightly unbalanced components are reflected in the transmission output. Therefore, the electric power will be weak. This power can be controlled by adding means for controlling the degree of imbalance. Also, during reception, the received radio waves are applied to the two mixer diodes via the horn antenna and waveguide, and although the power in this case is weak, the two outputs are added, so a constant received power is obtained. be able to.
以下実施例によつて本発明を詳細に説明する。
第１図ａおよびｂは本発明によるマイクロ波回路
装置の一実施例の構成を示す平面図および側断面
図である。同図において、ドツプラレーダモジユ
ール１の局部発振部はガンダイオード３、ボンデ
イングワイヤ４、基板上５の上に形成された４分
の１波長マイクロストリツプ線路６、円板共振器
７、ローパスフイルタバイアス回路８、直流バイ
アス端子９および不要モード抑圧用抵抗１０から
なる。 The present invention will be explained in detail below with reference to Examples.
FIGS. 1a and 1b are a plan view and a side sectional view showing the structure of an embodiment of a microwave circuit device according to the present invention. In the figure, the local oscillation section of the Doppler radar module 1 includes a Gunn diode 3, a bonding wire 4, a quarter-wavelength microstrip line 6 formed on a substrate 5, a disk resonator 7, It consists of a low-pass filter bias circuit 8, a DC bias terminal 9, and an unnecessary mode suppression resistor 10.
上記共振器７からの発振電力は、ミクサ部１１
の局発入力用のコープレナー形線路１２からミク
サダイオード１３，１４に加えられる。ミクサ部
１１の裏面には、裏面導体の一部が取り除かれ、
送受信波を通すための誘電体窓１５が形成されて
いる。ミクサ１３，１４からの信号出力は、ロー
パスフイルタとして作用するストラツプ１６，１
７を経て、信号出力端子１８，１９から取り出さ
れる。またミクサダイオード１３，１４の共通の
リード線２０はストラツプ２１を経て端子２２に
接続されている。本実施例は局発入力用のコープ
レーナ線路１２およびリード線２０の電力供給用
ストリツプラインと上記線路１２とミクサ１３お
よび１４を接続する線路とが直交して基板に配置
され、その部分１５の基板の裏面が金属部を除い
た誘電体板のみとなり、かつ上記基板５の表面
（ストリツプ線などのマイクロ波集積回路が形成
された側）が導波管の短絡面側に一定距離をもつ
て対向するように設けられている。したがつて、
送信時には、発振電力は２分されて上記ミクサダ
イオード１３および１４の接続線に加えられる
が、この接続線がアンテナの役割をするが、印加
電磁界の極性が逆となるためその総合出力は不平
衝成分があるときに発生する。したがつて、この
不平衝成分の割合を制御することによつてマイク
ロ波のアンテナ側への漏洩量を変えることができ
る。このマイクロ波成分は極めて微弱である。 The oscillation power from the resonator 7 is transmitted to the mixer section 11
It is applied to mixer diodes 13 and 14 from a coplanar line 12 for local oscillator input. A part of the back conductor is removed from the back surface of the mixer section 11.
A dielectric window 15 is formed for transmitting and receiving waves. The signal outputs from mixers 13, 14 are passed through straps 16, 1 which act as low pass filters.
7 and is taken out from signal output terminals 18 and 19. Further, a common lead wire 20 of the mixer diodes 13 and 14 is connected to a terminal 22 via a strap 21. In this embodiment, the coplanar line 12 for local oscillator input, the power supply stripline of the lead wire 20, and the line connecting the line 12 and the mixers 13 and 14 are arranged on the board so as to be perpendicular to each other. The back side of the substrate consists of only a dielectric plate excluding metal parts, and the front surface of the substrate 5 (the side on which a microwave integrated circuit such as a strip line is formed) is placed at a certain distance from the short-circuit side of the waveguide. They are arranged to face each other. Therefore,
During transmission, the oscillation power is divided into two and applied to the connection line between the mixer diodes 13 and 14. Although this connection line serves as an antenna, the polarity of the applied electromagnetic field is reversed, so the total output is unbalanced. Occurs when there is an opposition component. Therefore, by controlling the ratio of this unbalanced component, the amount of microwave leakage to the antenna side can be changed. This microwave component is extremely weak.
一方受信時は、ミクサダイオード１３，１４
は、マイクロ波電界２５と平行して配置され、導
波管部２４からの受信波の磁界と良好な結合を保
つ。本レーダモジユール１の送信電力は、ミクサ
ダイオード１３，１４の特性の偏差によるアンバ
ランスと、コープレーナ線路１２またはリード線
２０等の電力供給ラインのマイクロ波電界２５に
対する角度の直交条件からの偏差によつて決定さ
れる。実験結果によれば、局発入力1mWのと
き、モジユール１の導波管部２４に対する取付角
の調節によつて、１μＷ以下にすることが可能で
あつた。すなわち本構造では、主要な漏洩波はす
べて同相か逆相であり、局発入力線路からの漏洩
量の加減によつて、電力調節が可能である。 On the other hand, during reception, mixer diodes 13 and 14
is arranged parallel to the microwave electric field 25 and maintains good coupling with the magnetic field of the received wave from the waveguide section 24. The transmission power of the radar module 1 is determined by the unbalance due to the deviation in the characteristics of the mixer diodes 13 and 14, and the deviation from the orthogonal condition of the angle of the power supply line such as the coplanar line 12 or the lead wire 20 with respect to the microwave electric field 25. It is determined accordingly. According to the experimental results, when the local oscillator input is 1 mW, it is possible to reduce it to 1 μW or less by adjusting the mounting angle of the module 1 to the waveguide section 24. That is, in this structure, the main leakage waves are all in phase or in opposite phase, and the power can be adjusted by adjusting the amount of leakage from the local input line.
また電力調節を便利にするための別の手段とし
て、レーダモジユール１は、支持板２６及び、非
対称性をもつねじ２７を備え、ねじ２７の回転に
よつて、局発入力電力のコープレーナ線路１２ま
たはリード線２０のバランスを変化させ漏洩量の
加減を容易にしている。レーダモジユール１は、
調整後、裏板２８によつて気密封止しされる。 Further, as another means for convenient power adjustment, the radar module 1 includes a support plate 26 and an asymmetric screw 27, and by rotation of the screw 27, the coplanar line 12 of the local input power is Alternatively, the balance of the lead wire 20 may be changed to easily adjust the amount of leakage. Radar module 1 is
After adjustment, it is hermetically sealed with the back plate 28.
ミクサダイオード１３，１４に検出される局発
雑音は、適当な処理回路によつて振幅を等しく
し、逆相で加えることによつて、ダイオードの特
性偏差にかかわらず20〜30dB抑圧することがで
きる。このような処理回路は簡単の場合抵抗によ
つて構成できるが、抵抗値の変化によつて、ミク
サからの漏洩による電力も多少変化する。しかし
本発明の回路では、このような雑音抑圧の調整と
電力調整を実質的に独立した手段で実行できるの
で所望の低送信電力、高感度受信特性の実現が可
能である。 The local noise detected by the mixer diodes 13 and 14 can be suppressed by 20 to 30 dB regardless of the characteristic deviation of the diodes by making the amplitudes equal using an appropriate processing circuit and adding them in opposite phases. . In a simple case, such a processing circuit can be constructed from a resistor, but as the resistance value changes, the power leaked from the mixer also changes to some extent. However, in the circuit of the present invention, such noise suppression adjustment and power adjustment can be performed by substantially independent means, so that desired low transmission power and high sensitivity reception characteristics can be achieved.
第２図ａおよびｂは本発明によるマイクロ波回
路装置の他の実施例の構成を示す平面図ならび断
面図である。本実施例ではレーダモジユール１の
基板５は導波管２４の短絡面側に管軸方向と平行
に配置されている。又発振部２は導波管の外部に
設けられている。この場合の局発電力漏洩量の調
節は、コープレーナ線路１２に接近して平行に配
置された２ケの調節ねじ２９，３０によつて行な
われる。 FIGS. 2a and 2b are a plan view and a sectional view showing the structure of another embodiment of the microwave circuit device according to the present invention. In this embodiment, the substrate 5 of the radar module 1 is arranged on the short-circuit surface side of the waveguide 24 in parallel to the tube axis direction. Further, the oscillation section 2 is provided outside the waveguide. In this case, the amount of local power leakage is adjusted by two adjustment screws 29 and 30 arranged close to and parallel to the coplanar line 12.
ミクサダイオード１３，１４の極性をコープレ
ーナ線路１２に対し対称に配置した場合、雑音の
抑圧回路は、図に示すような抵抗R1，R2で構成
される。抵抗R1，R2の大きさを変化させること
により夫々のダイオードの検波電流を等しくする
ことができ、この回路条件によつて、局発雑音
は、取のぞかれる。またこのとき、検波された信
号は、加算され、１ケのダイオードの２倍の出力
電圧が得られる。 When the polarities of the mixer diodes 13 and 14 are arranged symmetrically with respect to the coplanar line 12, the noise suppression circuit is composed of resistors R 1 and R 2 as shown in the figure. By changing the magnitudes of resistors R 1 and R 2 , the detection currents of the respective diodes can be made equal, and with this circuit condition, local noise can be removed. Also, at this time, the detected signals are added to obtain an output voltage twice that of one diode.
第１図ａおよびｂは本発明によるマイクロ波回
路装置の一実施例の平面図ならび側断面図、第２
図ａおよびｂは本発明によるマイクロ波回路装置
の他の実施例の平面図および断面図である。
１……導波管、２……発振部、５……マイクロ
波集積回路基板、１２……コープレーナ線路、１
３，１４……ミクサダイオード、１５……誘電体
窓、１６，１７，２１……ストラツプ、１８，１
９……信号出力端子、２０……リード線。
1a and 1b are a plan view and a side sectional view of an embodiment of the microwave circuit device according to the present invention;
Figures a and b are a plan view and a sectional view of another embodiment of a microwave circuit device according to the invention. DESCRIPTION OF SYMBOLS 1... Waveguide, 2... Oscillation part, 5... Microwave integrated circuit board, 12... Coplanar line, 1
3, 14... Mixer diode, 15... Dielectric window, 16, 17, 21... Strap, 18, 1
9...Signal output terminal, 20...Lead wire.
Claims (1)
マイクロ波回路装置において、上記マイクロ波集
積回路板には発振電力を供給する直線状ストリツ
プラインと、一方の電極が上記ストリツプライン
に結合され、かつ上記ストリツプ線に対称に配置
された２つの送信兼受信用ミクサダイオードが上
記ダイオードを含み上記ストリツプラインとの結
合線路が上記ストリツプラインと直交するように
形成され、上記マイクロ波集積回路板は上記スト
リツプラインが上記導波管の電界と直交し、上記
結合線が上記電界と平行となるようし、かつ上記
発振電力を上記結合線ならび２つのミクサダイオ
ードを介して導波管との電磁界結合が不平衡を生
じるように上記導波管の短絡板の近傍に装着さ
れ、上記導波管の外部からの電波を上記開口なら
び上記結合線を介して上記２つのミクサダイオー
ドに結合し、上記２つのミクサダイオードの低周
波出力を相加する手段を設けて構成されたことを
特徴とするマイクロ波回路装置。 ２ 特許請求の範囲第１項記載の装置において、
上記集積回路板の基板の上記ミクサダイオードと
上記ストリツプラインとの結合線部に対応する部
分を誘電体板のみで形成し、上記集積回路板を上
記結合線が設けられた側を上記導波管の短絡面に
向けかつ、上記短絡面から一定距離離して内装し
た第１項記載のマイクロ波回路装置。 ３ 特許請求の範囲第１項記載の装置において、
上記マイクロ波集積回路板が、導波管の短絡面側
に導波管の管軸と平行となるよう内装した第１項
記載のマイクロ波回路装置。[Claims] 1. A microwave circuit device in which a microwave integrated circuit board is installed in a waveguide, wherein the microwave integrated circuit board has a linear strip line for supplying oscillation power, and one electrode is connected to the Two transmitting/receiving mixer diodes coupled to the stripline and arranged symmetrically to the stripline are formed such that a coupling line including the diodes and connecting to the stripline is orthogonal to the stripline. , the microwave integrated circuit board is configured such that the stripline is orthogonal to the electric field of the waveguide, the coupling line is parallel to the electric field, and the oscillation power is transmitted between the coupling line and the two mixer diodes. The waveguide is installed near the short circuit plate of the waveguide so that the electromagnetic field coupling with the waveguide becomes unbalanced through the opening and the coupling wire. 1. A microwave circuit device comprising means coupled to two mixer diodes and adding the low frequency outputs of the two mixer diodes. 2. In the device according to claim 1,
A portion of the substrate of the integrated circuit board that corresponds to the coupling line between the mixer diode and the stripline is formed of only a dielectric plate, and the side of the integrated circuit board where the coupling line is provided is connected to the waveguide. 2. The microwave circuit device according to claim 1, wherein the microwave circuit device is installed facing the short-circuit surface of the tube and spaced a certain distance from the short-circuit surface. 3. In the device according to claim 1,
2. The microwave circuit device according to claim 1, wherein the microwave integrated circuit board is installed on the short-circuit surface side of the waveguide so as to be parallel to the tube axis of the waveguide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2668779A JPS5516288A (en) | 1979-03-09 | 1979-03-09 | Microwave circuit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2668779A JPS5516288A (en) | 1979-03-09 | 1979-03-09 | Microwave circuit device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5516288A JPS5516288A (en) | 1980-02-04 |
| JPS6240667B2 true JPS6240667B2 (en) | 1987-08-29 |
Family
ID=12200297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2668779A Granted JPS5516288A (en) | 1979-03-09 | 1979-03-09 | Microwave circuit device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5516288A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57182664A (en) * | 1981-05-06 | 1982-11-10 | Mitsubishi Electric Corp | Microwave integrated circuit substrate for detecting doppler signal |
-
1979
- 1979-03-09 JP JP2668779A patent/JPS5516288A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5516288A (en) | 1980-02-04 |
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