CN104930930A - Millimeter wave band fuse and control integrated transmitting-receiving front end - Google Patents
Millimeter wave band fuse and control integrated transmitting-receiving front end Download PDFInfo
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- CN104930930A CN104930930A CN201510264137.2A CN201510264137A CN104930930A CN 104930930 A CN104930930 A CN 104930930A CN 201510264137 A CN201510264137 A CN 201510264137A CN 104930930 A CN104930930 A CN 104930930A
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Abstract
The invention provides a millimeter wave band fuse and control integrated transmitting-receiving front end and aims at providing a fuse and control integrated transmitting-receiving front end which has high transmitting-receiving switchover speed, great modulation depth, short receiving recovery time and a detection blind zone of less than 15m. The front end is implemented by the following technical scheme of: transmitting an intermediate frequency input signal and a local oscillation signal for superheterodyne mixing via a mixer in a radio frequency emission branch, controlling an absorption switch to achieve conversion of a seeker mode and a fuse mode by using a fuse mode driver after through a band-pass filter and a driving amplifier, introducing high-speed radio frequency switches before and after a power amplifier, achieving transmitting-receiving switchover via a radio frequency switch driver, introducing an amplitude limiter at the front end of a radio frequency receiving branch, keeping a receiving channel in a linear state, and subsequently, allowing a receiving signal to sequentially pass through a low-noise amplifier, the band-pass filter and the mixer to enter an intermediate frequency output channel.
Description
Technical field
The invention relates to a kind of millimeter wave frequency band seeker-fuze integration receiving and transmitting front end framework being widely used in communication, radar, multiple fields, be specially adapted to millimeter wave frequency band radar seeker and influence fuse composite integrated integrated receiving and transmitting front end design.
Background technology
In millimeter-wave systems, the performance of receiving and transmitting front end to system plays a crucial role.The Theoretical Design of millimeter wave transceiving front end passive circuit is mainly concerned with millimeter wave band bandpass filter and waveguide one microstrip transition, mainly comprises amplifier, frequency mixer and switch.Front ends of millimeter waves system forms primarily of emitter, receiver, signal source, base band signal process machine and various interface equipment.Millimeter wave transceiving front end is integrated into a millimetre integrated circuit millimeter wave transmitter module and receiver module exactly.As a system, the elementary cell of millimeter wave transceiving front end composition---millimetric wave device just determines the quality of millimeter wave transceiving performance of front end to a great extent.Along with the development of millimetric wave device, millimeter wave transceiving front end experienced by and forms hybrid microwave integrated circuit (HMIC) by microwave printed circuit and discrete device until popular now monolithic integrated microwave circuit from initial, weight and volume reduces again and again, and power and frequency then improve constantly.Millimeter wave is the electromagnetic spectrum of wavelength between 1 ~ 10mm, respective frequencies scope 3GHz ~ 30GHz.From frequency, millimeter wave low side is connected with microwave, high-end and infrared, light wave is connected, so millimeter wave develops into the comprehensive subdiscipline of a collection microwave, optics two subject knowledges gradually, be characterized in that wave beam is narrow, maintain secrecy and antijamming capability is strong, bandwidth capacity greatly, easily realizes image, numeral compatible.The requirement on machining accuracy of millimeter wave equipment is high, and the parasitic parameter of components and parts also will be reduced to minimum level very greatly to performance impact, and this just causes millimeter wave components and parts price relatively costly.
Along with the develop rapidly of aeronautical and space technology, require with multiple types, on a large scale, high speed, the by force trend development such as motor-driven, make the intersection situation of aircraft and target become very complicated.In recent years, occurred that the working frequency range by radar fuze brings up to the trend of millimeter wave frequency band.Millimeter-wave technology and application have achieved compelling breakthrough through the development of many decades, but are still in Growth Development period at present.New material, new component and transmission line continue to bring out and millimetre integrated circuit is brought up to new height by new manufacturing process and technology.Cost height is still the main bugbear that restriction millimeter-wave technology is widely applied, and reducing costs and improving reliability is the important research direction of millimeter-wave technology.
Millimeter-wave seeker is the main direction of studying in radar guidance field, if can compound influence fuse function, will effectively improve targeting precision.Key component in millimeter-wave seeker framework is receiving and transmitting front end, plays very important effect in the entire system, and can the index that its performance directly affects whole system reach.The domestic and international research of millimeter wave transceiving front end progressively to miniaturization, lightweight, solid state and high reliability future development.If can in receiving and transmitting front end combined fuze detecting function, just can realize drawing system one complex function; And required fringe cost is extremely low, stable performance, technology maturation, possesses the condition promoted in engineer applied.But, how to realize the receiving and transmitting front end of the seeker-fuze integration being applicable to Millimeter Wave Pulsed system, just become the difficult problem urgently broken through.
At present, both at home and abroad to the research of seeker-fuze integration technology, also rest on the technical scheme demonstration stage, there is not yet successful experimental prototype or Related product.These technical schemes adopt the discrete detection system of two covers to realize target seeker and fuse two kinds of functions mostly, and carry out signal fused system-level.The discrete detection system of such two cover causes cost significantly to be increased, and poor compatibility between two systems, causes the problems such as unstable properties.And the receive mode of system mainly adopts the mode such as millimeter wave active-passive composite or IR Passive reception, and in conjunction with the missile-target distance information that target seeker function provides, analyze and improve initiation precision and the anti-interference of fuze function.But under these systems, because parser is complicated, external environment influence factor is many, and temporal scalable precision is not high, cause the minimum detectable range of fuze function and detection accuracy all far below millimeter wave burst pulse system.So far, there is not yet the relevant report of the seeker-fuze integration receiving and transmitting front end being applicable to Millimeter Wave Pulsed system.
Summary of the invention
It is low that the object of the invention is to provide a kind of fringe cost, stable performance; Bimodulus switches easy to control and speed fast, and Transmit enable speed is high, and modulation depth is large, and receive recovery time short, detection blind area is little and precision is high; Be applicable to the seeker-fuze integration receiving and transmitting front end of mm pulse radar system.
Above-mentioned purpose of the present invention can be achieved by the following technical programs, a kind of millimeter wave frequency band draws the receiving and transmitting front end of system one, comprise and be integrated with target seeker and fuse two kinds of mode of operations and there is the radio-frequency transmissions branch road of transmit-receive function and the radio frequency reception branch road under limiter is protected, it is characterized in that: at radio-frequency transmissions branch road, emission medium-frequency input signal and local oscillation signal carry out superhet uppermixing through frequency mixer, after carrying out filtering and amplification by bandpass filter and driving amplifier to transmitting, fuse mode drivers is utilized to respond fuse mode drive signal to control absorption switch, to realize the conversion of target seeker pattern and fuse pattern, and introduce respectively before and after power amplifier two-stage high speed RF switch to reiving/transmitting state carry out high speed switch, introduce limiter in radio frequency reception branch road front end, make receive path be in linear condition, ensure that extremely short receiver recovery time, Received signal strength sequentially passes through low-noise amplifier, bandpass filter and frequency mixer, enters intermediate frequency output channel.
The present invention has following beneficial effect compared to prior art:
The present invention introduces at transmitting branch the conversion that absorption switch realizes target seeker and fuse two kinds of mode of operations; High speed RF switch is utilized to control radio-frequency transmissions branch road Transmit enable at a high speed; The limiter that radio frequency reception branch road front end is introduced, power control techniques is launched in conjunction with under fuse pattern, receive path is made to be in linear condition, recovery time almost nil (being less than 1ns) is received under realizing fuse duty, the detection blind area of fuse pattern is just no longer subject to the restriction receiving recovery time, but determined by the turn-off time of the RF switch of radio-frequency transmissions branch road, thus achieve the seeker-fuze integration receiving and transmitting front end of target seeker and influence fuse complex function.
Fringe cost is low, stable performance.The present invention adopts the compound framework of millimeter wave frequency band seeker-fuze integration receiving and transmitting front end, by introducing absorption switch at radio-frequency transmissions branch road, the transmitting power achieving target seeker and fuse two kinds of mode of operations controls, thus in millimeter-wave seeker receiving and transmitting front end, be compounded with the mode of operation of influence fuse.Fringe cost is only absorption switch and relevant peripheral circuit.And, be basis radio frequency framework or additional absorption switch is all very ripe technology, experienced by for many years engineering test, stable performance.
Bimodulus switches easy to control and speed is fast.The present invention utilizes fuse mode drivers to control absorption switch, meets the different requirements to transmitting power under target seeker and fuse two kinds of patterns, to realize the conversion of target seeker pattern and fuse pattern.Target seeker pattern and fuse pattern switch speed were determined by the switch time of absorption switch, and its representative value is less than 5ns.
Transmit enable speed is high, and modulation depth is large.The present invention is by adopting high speed RF switch handoff technique, and the turn-off time achieving burst pulse depth modulation transmitting branch, between 3-10ns, is significantly shortened receiving and dispatching by more than the 100ns of routine conversion time.Meanwhile, two-stage radio-frequency switch isolation degree representative value, at more than 70dB, achieves depth modulation, ensure that receiver sensitivity.
Receive recovery time short, detection blind area is little and precision is high.The present invention introduces limiter by radio frequency reception branch road, launches power control techniques, makes receive path be in linear condition, receive and be less than 1ns recovery time under achieving fuse duty in conjunction with under fuse pattern.The detection blind area of fuse pattern is just no longer subject to the restriction receiving recovery time, but is determined by the turn-off time of transmitting branch, between 3-10ns, makes detection blind area under fuse pattern be 4.5-15m.
Under the present invention is specially adapted to millimeter wave short-pulse radar system, realize the seeker-fuze integration receiving and transmitting front end of millimetre-wave radar Imaging Seeker and influence fuse bimodulus complex function.
Accompanying drawing explanation
Fig. 1 is the framework schematic diagram of millimeter wave frequency band seeker-fuze integration receiving and transmitting front end of the present invention.
Detailed description of the invention
Consult Fig. 1.Fig. 1 describes the most preferred embodiment of a millimeter wave frequency band seeker-fuze integration receiving and transmitting front end.Described millimeter wave frequency band draws the receiving and transmitting front end of system one, comprises integrated target seeker and fuse two kinds of functional modes and the radio-frequency transmissions branch road of transmit-receive function and the radio frequency reception branch road under limiter is protected.The radio-frequency transmissions branch road of receiving and transmitting front end and radio frequency reception branch road share outside local oscillator input signals by power splitter.
At radio-frequency transmissions branch road, emission medium-frequency input signal and local oscillation signal realize superhet uppermixing through frequency mixer, filtering and amplification is carried out to transmitting by bandpass filter and driving amplifier, fuse mode drivers is utilized to respond fuse mode drive signal subsequently, control absorption switch to meet the different requirements of transmitting power under target seeker and fuse two kinds of patterns, to realize the conversion of target seeker pattern and fuse pattern, finally before and after power amplifier, introduce two-stage high speed RF switch respectively, by RF switch driver control, realize reiving/transmitting state at a high speed to switch, its typical switching time is 3-10ns.Meanwhile, two-stage radio-frequency switch isolation degree representative value, at more than 70dB, achieves high speed depth modulation, ensure that receiver sensitivity.
First introduce limiter in radio frequency reception branch road front end, in conjunction with the power control techniques of transmitting branch, make receive path be in linear condition, ensure that receiver recovery time at a high speed.Like this, the detection blind area under fuse pattern is no longer subject to the restriction of receiver recovery time, and high speed RF switch turn-off time (3-0ns) of being connected by radio-frequency transmissions branch road determines, ensure that detection blind area is 4.5-15m under fuse pattern.And limiter available protecting receiving branch low-noise amplifier below, avoids high power signals and burns amplifier.
Below by reference to the accompanying drawings to invention has been detailed description, but it is to be noted, the preferred embodiments of the present invention are merely described by above-described embodiment, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations, such as the quantity of transmitting branch of the present invention and receiving branch expanded is two or above etc. steel structure, within the spirit and principles in the present invention all, any amendment of doing, equivalent replacement, improvement etc., all should be included within right of the present invention.
Claims (5)
1. a millimeter wave frequency band draws system receiving and transmitting front end integrally, comprise and be integrated with target seeker and fuse two kinds of mode of operations and there is the radio-frequency transmissions branch road of transmit-receive function and the radio frequency reception branch road under limiter is protected, it is characterized in that: at radio-frequency transmissions branch road, emission medium-frequency input signal and local oscillation signal carry out superhet uppermixing through frequency mixer, after carrying out filtering and amplification by bandpass filter and driving amplifier to transmitting, fuse mode drivers is utilized to respond fuse mode drive signal to control absorption switch, to realize the conversion of target seeker pattern and fuse pattern, and introduce respectively before and after power amplifier two-stage high speed RF switch to reiving/transmitting state carry out high speed switch, introduce limiter in radio frequency reception branch road front end, make receive path be in linear condition, ensure that extremely short receiver recovery time, Received signal strength sequentially passes through low-noise amplifier, bandpass filter and frequency mixer, enters intermediate frequency output channel.
2. millimeter wave frequency band as claimed in claim 1 draws the receiving and transmitting front end of system one, it is characterized in that: introduce absorption switch at transmitting branch, the transmitting power achieving target seeker and fuse two kinds of mode of operations controls, thus in millimeter-wave seeker receiving and transmitting front end, be compounded with the mode of operation of influence fuse.
3. millimeter wave frequency band as claimed in claim 1 draws the receiving and transmitting front end of system one, it is characterized in that: before and after power amplifier, introduce two-stage high speed RF switch respectively, by RF switch driver control, realize reiving/transmitting state at a high speed to switch, its typical switching time is 3-10ns, and modulation depth is at more than 70dB.
4. millimeter wave frequency band as claimed in claim 1 draws the receiving and transmitting front end of system one, it is characterized in that: receiving branch introduces limiter, launch power control techniques in conjunction with under fuse pattern, make receive path be in linear condition, receive under achieving fuse duty and be less than 1ns recovery time.
5. millimeter wave frequency band as claimed in claim 1 draws the receiving and transmitting front end of system one, it is characterized in that: the detection blind area under fuse pattern is no longer subject to the restriction of receiver recovery time, and high speed RF switch turn-off time of being connected by transmitting branch determines, with detection blind area under ensureing fuse pattern for 4.5-15m.
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Cited By (8)
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| CN105406172A (en) * | 2015-12-09 | 2016-03-16 | 贵州航天电子科技有限公司 | Phased array seeker antenna |
| CN107085201A (en) * | 2017-05-16 | 2017-08-22 | 上海大学 | Transceiver Doppler radar front-end module |
| CN108732563A (en) * | 2018-08-21 | 2018-11-02 | 无锡华测电子系统有限公司 | A kind of multichannel tile type transmitting-receiving subassembly |
| CN108845369A (en) * | 2018-06-14 | 2018-11-20 | 江苏心磁超导体有限公司 | Terahertz safe examination system |
| CN110686573A (en) * | 2019-09-03 | 2020-01-14 | 重庆航天工业有限公司 | Proximity fuse detector |
| CN113008087A (en) * | 2021-04-16 | 2021-06-22 | 山东龙翼航空科技有限公司 | Laser guidance projection fire extinguishing bomb |
| CN114111450A (en) * | 2021-12-30 | 2022-03-01 | 西安雷通科技有限责任公司 | Guide head |
| WO2024091164A1 (en) * | 2022-10-28 | 2024-05-02 | Beammwave Ab | An analog hardware interface for connecting transceiver front ends to an fr1 transceiver, and related wireless device, control unit, method, computer program product, non-transitory computer-readable storage medium, and chips |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406172A (en) * | 2015-12-09 | 2016-03-16 | 贵州航天电子科技有限公司 | Phased array seeker antenna |
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| CN107085201B (en) * | 2017-05-16 | 2020-06-26 | 上海大学 | Receiving and transmitting integrated Doppler radar front-end module |
| CN108845369A (en) * | 2018-06-14 | 2018-11-20 | 江苏心磁超导体有限公司 | Terahertz safe examination system |
| CN108732563A (en) * | 2018-08-21 | 2018-11-02 | 无锡华测电子系统有限公司 | A kind of multichannel tile type transmitting-receiving subassembly |
| CN108732563B (en) * | 2018-08-21 | 2024-02-09 | 无锡华测电子系统有限公司 | Multichannel tile formula transceiver module |
| CN110686573A (en) * | 2019-09-03 | 2020-01-14 | 重庆航天工业有限公司 | Proximity fuse detector |
| CN113008087A (en) * | 2021-04-16 | 2021-06-22 | 山东龙翼航空科技有限公司 | Laser guidance projection fire extinguishing bomb |
| CN114111450A (en) * | 2021-12-30 | 2022-03-01 | 西安雷通科技有限责任公司 | Guide head |
| WO2024091164A1 (en) * | 2022-10-28 | 2024-05-02 | Beammwave Ab | An analog hardware interface for connecting transceiver front ends to an fr1 transceiver, and related wireless device, control unit, method, computer program product, non-transitory computer-readable storage medium, and chips |
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