JPH05240942A - High-output small-sized millimetric-wave radar equipment - Google Patents
High-output small-sized millimetric-wave radar equipmentInfo
- Publication number
- JPH05240942A JPH05240942A JP4079279A JP7927992A JPH05240942A JP H05240942 A JPH05240942 A JP H05240942A JP 4079279 A JP4079279 A JP 4079279A JP 7927992 A JP7927992 A JP 7927992A JP H05240942 A JPH05240942 A JP H05240942A
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- gunn diode
- millimetric
- receiving
- 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.)
- Granted
Links
Landscapes
- Radar Systems Or Details Thereof (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はミリ波レーダ装置に関
し、特に高出力で小型なレーダ装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a millimeter wave radar device, and more particularly to a high power and compact radar device.
【０００２】[0002]
【従来の技術】近年、ミリ波帯の周波数を用いたレーダ
装置の開発が進められている。図３に従来のミリ波レー
ダの一例を示すブロック図を示す。ミリ波発振器２１、
方向性結合器２２、周波数変換器２３、ＩＦ増幅器２４
で構成される送受信機２５と、送信アンテナ２６及び受
信アンテナ２７にて構成されている。発振器２１より発
生したミリ波信号は、送信アンテナ２６より送信され、
目標物体に当たって反射波となり、時間ｔだけ遅れて受
信信号として受信アンテナ２７に入力される。この受信
信号は周波数変換器２３により送受信周波数が混合さ
れ、その差周波数に相当したビート信号が得られ、ＩＦ
増幅器２４にて増幅されたビート信号を取り出すもので
ある。発振器には周波数変調をかけたりパルス変調をか
けるのが一般的である。2. Description of the Related Art In recent years, the development of radar devices using frequencies in the millimeter wave band has been advanced. FIG. 3 is a block diagram showing an example of a conventional millimeter wave radar. Millimeter wave oscillator 21,
Directional coupler 22, frequency converter 23, IF amplifier 24
The transmitter / receiver 25 includes a transmitting antenna 26 and a receiving antenna 27. The millimeter wave signal generated by the oscillator 21 is transmitted from the transmission antenna 26,
The reflected wave hits the target object and is input to the receiving antenna 27 as a received signal with a delay of time t. The reception signal is mixed with the transmission and reception frequencies by the frequency converter 23, and a beat signal corresponding to the difference frequency is obtained.
The beat signal amplified by the amplifier 24 is taken out. The oscillator is generally frequency-modulated or pulse-modulated.
【０００３】[0003]
【発明が解決しようとする課題】ところで、この種のレ
ーダ装置を自動車や航空機に搭載する場合は、小型化、
軽量化が要求され、かつミリ波を遠距離まで到達させる
ため、高出力送信機が必要になる。特にミリ波体では、
導波管接続となるため機器の構成品目数を減らすことが
実装上非常に重要である。しかしながら、前記したレー
ダ装置では、周波数変換器やＩＦ増幅器が比較的に大
型、高重量であるために、小型化、軽量化を進めること
が難しいという問題がある。本発明の目的は、簡単な構
成で小型化、軽量化を実現できる高出力小型ミリ波レー
ダ装置を提供することにある。By the way, when a radar device of this type is mounted on an automobile or an aircraft, it is required to reduce the size,
A high-power transmitter is required to reduce the weight and reach millimeter waves over a long distance. Especially in the millimeter wave body,
Since it is a waveguide connection, it is very important for implementation to reduce the number of components of equipment. However, the above-described radar device has a problem that it is difficult to reduce the size and weight of the radar device because the frequency converter and the IF amplifier are relatively large and heavy. An object of the present invention is to provide a high-power small-sized millimeter-wave radar device that can realize downsizing and weight saving with a simple configuration.
【０００４】[0004]
【課題を解決するための手段】本発明は、ミリ波帯信号
を発生する発振器と、この発振信号を増幅するガンダイ
オード増幅器と、増幅されたミリ波帯信号を送信する送
信手段と、目標物からの反射波を受信する受信手段と、
前記ガンダイオード増幅器にバイアスを供給するバイア
ス回路とを備える。ここで、ガンダイオード増幅器は二
開口構造を有し、受信信号をガンダイオード増幅器に入
力し、ガンダイオードの両端から発生する送受信周波数
差に相当するビート信号を取り出すように構成する。例
えば、送信手段と受信手段を方向性結合器を介してガン
ダイオード増幅器に接続し、ビート信号をバイアス回路
を通して取り出すように構成する。SUMMARY OF THE INVENTION The present invention is directed to an oscillator for generating a millimeter wave band signal, a Gunn diode amplifier for amplifying the oscillation signal, a transmitting means for transmitting the amplified millimeter wave band signal, and a target object. Receiving means for receiving the reflected wave from
A bias circuit that supplies a bias to the Gunn diode amplifier. Here, the Gunn diode amplifier has a double aperture structure, and is configured so that a received signal is input to the Gunn diode amplifier and a beat signal corresponding to a transmission / reception frequency difference generated from both ends of the Gunn diode is extracted. For example, the transmitting means and the receiving means are connected to a Gunn diode amplifier via a directional coupler, and the beat signal is taken out through a bias circuit.
【０００５】[0005]
【作用】ガンダイオード増幅器により送受信周波数差の
ビートを取り出すことで、周波数変換器とＩＦ増幅器を
不要とする。By extracting the beat of the transmission / reception frequency difference by the Gunn diode amplifier, the frequency converter and the IF amplifier are unnecessary.
【０００６】[0006]
【実施例】次に、本発明について図面を参照して説明す
る。図１は本発明の一実施例の構成を示すブロック図で
ある。１は発振器、２は発振安定用アイソレータ、３は
ガンダイオード増幅器、４はガンダイオードへの電圧印
加用及びビート信号取り出し用バイアス回路、５は送受
信信号分離用方向性結合器、６は送信用アイソレータ、
７は受信用アイソレータ、８は送信アンテナ、９は受信
アンテナである。この構成において、ガンダイオード増
幅器３は二開口導波管とし、発振器１にて発生したミリ
波信号を増幅する機能を有する。増幅されたミリ波は送
信信号として送信アンテナ８から送信され、目標物体に
当たって反射されて受信信号として受信アンテナ９に入
力される。この受信信号は、方向性結合器５を介してガ
ンダイオード増幅器３に入力される。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. Reference numeral 1 is an oscillator, 2 is an oscillation stabilizing isolator, 3 is a Gunn diode amplifier, 4 is a bias circuit for applying voltage to the Gunn diode and is for extracting a beat signal, 5 is a directional coupler for separating transmission / reception signals, and 6 is an isolator for transmission. ,
Reference numeral 7 is a receiving isolator, 8 is a transmitting antenna, and 9 is a receiving antenna. In this configuration, the Gunn diode amplifier 3 is a two-aperture waveguide and has a function of amplifying a millimeter wave signal generated by the oscillator 1. The amplified millimeter wave is transmitted as a transmission signal from the transmission antenna 8, hits a target object, is reflected, and is input to the reception antenna 9 as a reception signal. This received signal is input to the Gunn diode amplifier 3 via the directional coupler 5.
【０００７】ここでガンダイオードは非線形素子である
ので、送信周波数と受信周波数が混合され各々の差周波
ビート信号がガンダイオード両端より得られる。また、
このビート信号はガンダイオードで増幅され、バイアス
回路４の容量結合端子より出力され、レーダ信号処理回
路に入力される。したがって、この構成では、従来用い
られていた周波数変換器とＩＦ増幅器を省略できる利点
があり、レーダの小型化、軽量化を実現することができ
る。特に、ミリ波帯では低価格化への寄与も大きい。Here, since the Gunn diode is a non-linear element, the transmission frequency and the reception frequency are mixed, and respective difference frequency beat signals are obtained from both ends of the Gunn diode. Also,
This beat signal is amplified by the Gunn diode, output from the capacitive coupling terminal of the bias circuit 4, and input to the radar signal processing circuit. Therefore, this configuration has an advantage that the frequency converter and the IF amplifier which have been conventionally used can be omitted, and the downsizing and weight reduction of the radar can be realized. Especially in the millimeter-wave band, it contributes significantly to lower prices.
【０００８】図２は本発明の他の実施例を示すブロック
図である。図１と同一部分には同一符号を付してある。
この実施例では、増幅用サーキュレータ１１を新たに設
ける一方で、方向性結合器は省略している。そして、ガ
ンダイオード増幅器３の１開口面はサーキュレータ１１
と合わせて反射型ミリ波増幅動作を行い、他開口面には
受信信号が入力される。又、送信信号は増幅用サーキュ
レータ１１から出力させる。この実施例では、図１の構
成と同様に送受信周波数差に相当したビート信号がバイ
アス回路４より取り出され、ミリ波レーダとして動作さ
れる。又、ここでは方向性結合器５を省略し、これより
も小型に構成できる増幅用サーキュレータ１１に代えて
いるので、装置の小型化、軽量化を更に進めることがで
きる。FIG. 2 is a block diagram showing another embodiment of the present invention. The same parts as those in FIG. 1 are designated by the same reference numerals.
In this embodiment, the amplification circulator 11 is newly provided, but the directional coupler is omitted. Then, one opening surface of the Gunn diode amplifier 3 has a circulator 11
In addition, the reflection type millimeter wave amplification operation is performed, and the received signal is input to the other opening surface. Further, the transmission signal is output from the amplification circulator 11. In this embodiment, the beat signal corresponding to the transmission / reception frequency difference is extracted from the bias circuit 4 and operates as a millimeter wave radar as in the configuration of FIG. Further, since the directional coupler 5 is omitted here and is replaced with the amplifying circulator 11 which can be constructed in a smaller size than that, the device can be further downsized and lightened.
【０００９】[0009]
【発明の効果】以上説明したように本発明のミリ波レー
ダ装置は、ガンダイオード増幅器に周波数変換機能を持
たせることにより、周波数変換器やＩＦ増幅器を省略す
ることができ、構成を簡略化して高出力化、小型化、軽
量化，低価格化が実現でき、自動車や航空機搭載用とし
て極めて実用的効果が大きい。As described above, in the millimeter-wave radar device of the present invention, the Gunn diode amplifier has a frequency conversion function, so that the frequency converter and the IF amplifier can be omitted, and the configuration is simplified. Higher output, smaller size, lighter weight, and lower price can be realized, and they are extremely useful for mounting on automobiles and aircraft.
【図１】本発明のレーダ装置の一実施例のブロック図で
ある。FIG. 1 is a block diagram of an embodiment of a radar device of the present invention.
【図２】本発明のレーダ装置の他の実施例のブロック図
である。FIG. 2 is a block diagram of another embodiment of the radar device of the present invention.
【図３】従来のレーダ装置の一例のブロック図である。FIG. 3 is a block diagram of an example of a conventional radar device.
１ 発振器 ２ 発振安定用アイソレータ ３ ガンダイオード増幅器 ４ バイアス回路 ５ 方向性結合器 ６ 送信用アイソレータ ７ 受信用アイソレータ ８ 送信アンテナ ９ 受信アンテナ 1 Oscillator 2 Oscillation Stabilization Isolator 3 Gunn Diode Amplifier 4 Bias Circuit 5 Directional Coupler 6 Transmission Isolator 7 Reception Isolator 8 Transmission Antenna 9 Reception Antenna
Claims (2)
発振信号を増幅するガンダイオード増幅器と、増幅され
たミリ波帯信号を送信する送信手段と、目標物からの反
射波を受信する受信手段と、前記ガンダイオード増幅器
にバイアスを供給するバイアス回路とを備え、前記ガン
ダイオード増幅器は二開口構造を有し、受信信号をガン
ダイオード増幅器に入力し、ガンダイオードの両端から
発生する送受信周波数差に相当するビート信号を取り出
すように構成したことを特徴とする高出力小型ミリ波レ
ーダ装置。1. An oscillator for generating a millimeter-wave band signal, a Gunn diode amplifier for amplifying the oscillation signal, a transmitting means for transmitting the amplified millimeter-wave band signal, and a receiver for receiving a reflected wave from a target object. Means and a bias circuit for supplying a bias to the Gunn diode amplifier, the Gunn diode amplifier having a double aperture structure, inputting a received signal to the Gunn diode amplifier, and transmitting and receiving frequency difference generated from both ends of the Gunn diode. A high-power compact millimeter-wave radar device characterized by being configured to extract a beat signal corresponding to
してガンダイオード増幅器に接続し、ビート信号をバイ
アス回路を通して取り出すように構成してなる請求項１
の高出力小型ミリ波レーダ装置。2. The transmitting means and the receiving means are connected to a Gunn diode amplifier through a directional coupler, and the beat signal is taken out through a bias circuit.
High-power compact millimeter-wave radar device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4079279A JP2871277B2 (en) | 1992-02-29 | 1992-02-29 | High power small millimeter wave radar equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4079279A JP2871277B2 (en) | 1992-02-29 | 1992-02-29 | High power small millimeter wave radar equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05240942A true JPH05240942A (en) | 1993-09-21 |
| JP2871277B2 JP2871277B2 (en) | 1999-03-17 |
Family
ID=13685432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4079279A Expired - Lifetime JP2871277B2 (en) | 1992-02-29 | 1992-02-29 | High power small millimeter wave radar equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2871277B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014042689A1 (en) * | 2012-09-13 | 2014-03-20 | Grazel Alfred | A circuit configuration using a frequency converter to achieve tunable circuit components such as filters and amplifiers |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4990089A (en) * | 1972-12-27 | 1974-08-28 |
-
1992
- 1992-02-29 JP JP4079279A patent/JP2871277B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4990089A (en) * | 1972-12-27 | 1974-08-28 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014042689A1 (en) * | 2012-09-13 | 2014-03-20 | Grazel Alfred | A circuit configuration using a frequency converter to achieve tunable circuit components such as filters and amplifiers |
| US9543895B2 (en) | 2012-09-13 | 2017-01-10 | Alfred Grayzel | Circuit configuration using a frequency converter to achieve tunable circuit components such as filters and amplifiers |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2871277B2 (en) | 1999-03-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4677396B2 (en) | RF transceiver module and millimeter wave FMCW radar sensor using the same | |
| US20080080599A1 (en) | Heterodyne rf transceiver for radar sensor | |
| CN201600448U (en) | MWW (millimeter wave) coherent seeker front end device | |
| KR101658354B1 (en) | Fmcw radar transceiver having dual signal generator | |
| KR100751065B1 (en) | RF transceiver module and millimeterwave FMCW radar sensor using the same | |
| US7221311B2 (en) | Radar | |
| KR101908490B1 (en) | W band radar apparatus for reducing a leakage current | |
| CN207283538U (en) | A kind of millimeter wave multichannel transmitting-receiving system | |
| US4083004A (en) | Expendable repeater employing harmonic mixing | |
| CN112379370B (en) | SAR system based on all-silicon-based chip | |
| US5153596A (en) | Cw radar system | |
| CN112904284A (en) | Millimeter wave radar transmitting and receiving system and radar | |
| JPH05240942A (en) | High-output small-sized millimetric-wave radar equipment | |
| GB1400069A (en) | Doppler frequency generating oscillatormixer apparatus | |
| US6404378B1 (en) | Device for increasing the dynamic range of frequency-modulated continuous-wave radar | |
| JP4655253B2 (en) | Microwave band sampling high-frequency amplifier and transmitter / receiver using the same | |
| JPH0627228A (en) | Single oscillator fsk pulse radar transmitter-receiver | |
| KR100668363B1 (en) | Millimeterwave rf transceiver for radar senor | |
| KR100379378B1 (en) | Transmitter-receiver of relay center system | |
| JPH05240946A (en) | Millimeter wave band radar device | |
| JP4041997B1 (en) | High frequency sensor device | |
| JPH0682550A (en) | Radar receiver | |
| JPH08160122A (en) | Fmcw radar | |
| JP2001016042A (en) | Local oscillator-mixer circuit | |
| KR830000893Y1 (en) | Broadcast repeater |