CN205812005U - A kind of Five-channel millimeter wave transceiving assembly - Google Patents
A kind of Five-channel millimeter wave transceiving assembly Download PDFInfo
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Abstract
This utility model provides a kind of Five-channel millimeter wave transceiving assembly, including local oscillator merit subdivision, receives unit, transmitter unit, switching switch and power supply and control unit；The local oscillation signal merit that outside is provided by described local oscillator merit subdivision is divided into five tunnel outputs, provides local oscillation signal for receiving each passage of unit；Receive unit and be provided with five paths, receive passage, this monitoring passage and road reception passage by the switching shared same intermediate frequency output interface of switch switching including a road monitoring passage and 4 tunnels；Transmitter unit uses shallow saturated mode to be amplified to meet the power of transmitter needs by launching pumping signal, and is launched by transmitter；Power supply and control unit, for providing voltage conversion, control level and the power amplifier pulse power respectively for aforementioned local oscillator merit subdivision, transmitter unit, reception unit.
Description
Technical field
The present invention relates to communication technical field, especially radio communication, in particular to a kind of Five-channel millimeter wave
Transmitting-receiving subassembly.
Background technology
In current tracking system, mainly there are the types such as photoelectricity, microwave, millimeter wave, owing to millimeter-wave systems has sensitive
The features such as degree is high, resolving power is good, strong anti-interference performance, the impact of millimeter-wave systems subject plasma is less in addition, has concurrently simultaneously
The infrared advantage with microwave, therefore external advanced track and localization equipment all have employed millimeter-wave systems.Millimeter wave tracking technique
Research start from late 1970s, present western countries not only cover whole millimere-wave band in frequency, and set up
Development and production from device to machine product, testing experiment completely study system.At present, millimeter wave track and localization technology is wide
General be applied to radar system, electronic countermeasure, millimetre-wave attenuator, remote sensing remote measurement, health care, land resources detection, distribution of mineral deposits,
In the civil equipment in multiple fields such as coastline warning and military equipment.The most militarily, millimeter-wave guidance technology is frequent
Applying in multiple control and guide, multimode guidance pattern can be according to disturbed condition automatic switchover guided mode, " the Huang of the U.S.
Honeybee ", the guided missile such as " battleax " all use millimeter wave and infrared dual mode guidance system.China rises at millimeter wave track and localization technical elements
Walking later, technology is in developmental stage, along with the lifting of current domestic millimeter-wave technology ability, its relevant alignment system also from
Superhigh frequency band develops to millimeter wave frequency band, as the core devices of millimeter wave tracing-positioning system transceiver part, high performance receipts
Send out assembly property level be just particularly important, particularly the technical specification of its radio frequency part be directly connected to the complete of system and
Accurately.
Summary of the invention
It is an object of the invention to provide a kind of Five-channel millimeter wave transceiving assembly, including local oscillator merit subdivision, receive list
Unit, transmitter unit, switching switch and power supply and control unit.
The local oscillation signal merit that outside is provided by described local oscillator merit subdivision is divided into five tunnel outputs, for receiving each passage of unit
Local oscillation signal is provided；Receive unit be provided with five paths, including one tunnel monitoring passage and 4 tunnels receive passage, this monitoring passage with
One tunnel receives passage and shares same intermediate frequency output interface by switching switch switching；Transmitter unit uses shallow saturated mode to send out
Penetrate pumping signal and be amplified to meet the power of transmitter needs, and launched by transmitter；Power supply and control unit, for for front
State local oscillator merit subdivision, transmitter unit, reception unit provide voltage conversion, control level and the power amplifier pulse power respectively；
Using said modules, local oscillation signal merit is divided into 5 tunnels, Mei Yilu by 4 power splitters by described local oscillator merit subdivision
Entering the respective channel receiving unit after an amplifier, wherein the 5th road signal is laggard through an attenuator before amplification
Enter to monitor passage.
Using said modules, 5 paths structures of described reception unit are identical, all include the waveguide transitions being sequentially connected with
Device, protection switch, low noise amplifier, frequency mixer, intermediate frequency bridge, attenuator, prime are put, LC band filter and final stage are put,
Described waveguide switch receives the signal that described transmitter unit is launched, and second input source of described frequency mixer is divided for local oscillator merit
The merit sub-signal that unit produces；A switching switch is connected after the final stage intermediate frequency amplifier of sense channel and an input channel.
Use said modules, described transmitter unit include the prime that is sequentially connected with drive power amplifier, final stage power amplifier, isolator and
Waveguide switch, launches pumping signal and drives power amplifier, final stage power amplifier to export after carrying out signal amplification through described prime, through described every
After device, output is to described waveguide switch, and described waveguide switch launches output after carrying out waveguide transitions.
From the above technical solution of the present invention shows that, millimeter wave transceiving assembly proposed by the invention, it can be in wide temperature work
Make, it is achieved the highly integrated and preferable amplitude-phase consistency of circuit；For guaranteeing amplitude, phase place and the on-off control of each reception passage
Concordance, each passage uses identical circuit and symmetric configuration, the 4th tunnel to receive passage and monitoring passage is double by hilted broadsword
Throw switch switching shares same intermediate frequency output interface, reduces the non-linear and phase place disparity error of parasitic parameter introducing and phase place
Full temperature relative variation, compensate each passage change in gain amount under full temperature by the temperature compensation attenuator of medium frequency output end simultaneously
With amplitude discordance；Receive the isolation between passage high, and meet low-power consumption requirement；Transmitter unit uses shallow saturated to subtract
Few non-linear so that it is guaranteed that make an uproar mutually and spuious index, want guaranteed efficiency simultaneously；In order to obtain preferable isolated from power degree, millimeter wave
Each Transmit-Receive Unit and the local oscillator merit subdivision of Transmit-Receive Unit all use single power supply to power, and take from each other at decoupling
Reason.
Accompanying drawing explanation
Transmitting-receiving subassembly block diagram of system during Fig. 1.
Fig. 2 local oscillator merit subdivision design frame chart.
Fig. 3 millimeter wave transceiving assembly principle scheme block diagram.
Fig. 4 transmitter unit index Design block diagram.
Detailed description of the invention
In conjunction with Fig. 1, a kind of Five-channel millimeter wave transceiving assembly, transmitting-receiving subassembly is divided into four unit to be designed, respectively:
Local oscillator merit subdivision, reception unit, transmitter unit, power supply and control unit.Cubicle switch is divided into and comprises millimeter wave transceiving and open
Close the integrated second level package unit with modulation switch and power supply controls drive circuit two parts.
The Ku frequency band signals merit that wherein system is provided by local oscillator merit subdivision is divided into five tunnel outputs, provides for each reception passage
Local oscillation signal, is mainly made up of power splitter, amplifier etc..The level that transmitting pumping signal is amplified to need by transmitter unit is defeated
Go out, be mainly made up of gain stage amplifier, power amplifier etc..Receive unit and complete signal receiving function, mainly opened by protection
The composition such as pass, LNA, harmonic wave mirror image suppression mixing, front middle amplifying circuit, wave filter, intermediate frequency amplifier.Power supply and control are single
Unit completes power conversion and the function such as control, each way switch control.
2, local oscillator merit subdivision circuit design
Local oscillator merit subdivision respectively receives passage and provides local oscillation signal for assembly, and the isolation between passage is the design of this unit
Need consider key, the most also need to meet low-power consumption requirement, its specific design as shown in Figure 3:
Circuit affects and between road, isolates mainly having of this index: the isolation of power splitter, the reverse isolation of Ku amplifier and just
To Frequency Response.
(1) power splitter design
Use Wilkinson circuit form carries out power splitter design.Specific targets require as follows:
Frequency: 17～18GHz
Insertion Loss :≤3.5dB
Standing wave :≤1.3
Isolation: >=20dB (16～18GHz)
>=15dB (34～36GHz)
(2) Ku driving amplifier design
Use Ku wave band one chip amplifier, utilize its reverse isolation and low pass amplitude-frequency characteristic can realize interchannel at Ku wave band
Mutually isolated with Ka wave band.Specific targets require as follows:
Frequency: 17～18GHz
Gain: >=18dB
Reverse isolation degree: >=20dB
Output: >=15dBm
Power supply :+2.5V/61mA
Each channel isolation index of local oscillator unit calculates as shown in table 1:
Table 1 local oscillator merit subdivision each channel isolation Distribution Indexes table
(3) power supply is powered
Local oscillator unit power supply electric power thus supplied: voltage+5V, electric current 66 × 5=330mA
4.2.2.1.2 receive element circuit design
Ka band reception unit mainly realizes Ka band signal receive capabilities.Have five and receive passage, wherein the 4th tunnel
Same intermediate frequency output interface is shared by single-pole double-throw switch (SPDT) switching with monitoring passage..
According to receiving branch index request, receive unit index Design as shown in Figure 3:
The circuit realiration of this part it is crucial that the amplitude-phase consistency between each passage and channel isolation.
In order to ensure the isolation between each passage, structurally use and increase cavity isolation design to improve between passage
Isolation, simultaneously select the preferable frequency mixer of isolation；In addition the design of local oscillator merit subdivision has also taken into full account this index
Requirement.Summary mentality of designing ensures channel isolation index request.
For guaranteeing the concordance of the amplitude of each passage, phase place and on-off control, each passage uses identical circuit and right
Claim layout, reduce the full temperature relative variation of the non-linear and phase place disparity error of parasitic parameter introducing and phase place, lead to simultaneously
The temperature compensation attenuator crossing medium frequency output end compensates each passage change in gain amount under full temperature and amplitude discordance.
(1) waveguide transitions
Vertical leg input is the nonstandard waveguide of millimeter wave, and the conversion of waveguide to micro-strip uses the form of electric coupling, probe position
In the central authorities of waveguide broadside, in order to obtain the optimised form of probe coupling, HFSS (field analysis) software is utilized to be optimized simulation
Calculate, to obtain the waveguide optimal coupling to microstrip transition.
(2) protection switch
Protection on-off circuit is mainly used in realizing the function of transceiver insulation.Protection switch is placed in radio frequency in this transmitting-receiving subassembly
Signal input part, during transmitter work, protection switch enters off state, prevents front-end low-noise from putting chip overpower and burns, from
And protect system worked well.
GaAs high speed PIN switch monolithic selected by protection switch, can realize isolation: 35dB, the requirement of resistance to power: 200mW,
(3) low-noise amplifier
Owing to LNA is the first order active circuit of receiver, its noise coefficient will directly be superimposed on the noise system of system
On number, itself should have a low noise coefficient, and provides enough gain to reduce the influence of noise of late-class circuit, but can simultaneously
Causing system under big signal non-linear distortion occur, therefore the design of LNA gain must take into account noise coefficient and the linearity.
According to system requirements, four-way uses low-power consumption, the one chip amplifier of low gain, it is ensured that the linearity, its key technical indexes is such as
Under:
Frequency: 34～36GHz
Gain: >=15dB (room temperature)
Gain flatness :≤0.5dB
Noise coefficient :≤3dB
P-1dB: >=10dBm
Reverse isolation degree: >=25dB
Input standing wave :≤1.5
Power supply: 5V/55mA
Monitoring passage then uses the one chip amplifier that noise is low, gain is higher to guarantee noise coefficient and overall gain.
Frequency: 34～36GHz
Gain: >=21dB
Gain flatness :≤1dB
Noise coefficient :≤2.5dB
P-1dB: >=10dBm
Input standing wave: 1.5
Power supply: 5V/66mA
(4) image-reject mixer
Frequency mixer is to receive the strongest module of unit input radio frequency signal, and its linearity is most important index, simultaneously by
In being in the front end of receiver, therefore it is required that have relatively low noise coefficient simultaneously.
Ka wave band harmonic wave image-reject mixer monolithic is used to complete the function of frequency transformation, the radiofrequency signal that will receive
It is converted into intermediate-freuqncy signal.Its key technical indexes is as follows:
Operating frequency: Ka wave band
Local frequency: 17～18GHz, high local oscillator
Local oscillation power rate: 12～18dBm
IF-FRE: DC～4GHz
Conversion loss: 10.5dB
Inband flatness: 0.3dB
Local oscillator suppresses to radio frequency: 40dBc
P-1 input power: 7dBm
Coordinate 60MHz electric bridge (3dB, 90 °), it is possible to achieve the suppression of the frequency conversion and image frequency that receive signal is more than
18dB。
(5) intermediate-frequency filter
Intermediate-frequency filter uses rich human relations LC band filter.Requiring good linearity, specific targets are as follows:
Mid frequency: 60 ± 0.35MHz；
(1dB) bandwidth: 16 ± 0.35MHz；
Insertion Loss :≤3dB
Passband fluctuation :≤1dB；
Attenuation outside a channel: >=65dB (in the range of 0MHz～30MHz and 90MHz～150MHz)；
Squareness factor: (B-60/-3)≤2.8；
(6) pre-IF amplifier
Selecting single-stage silicon bipolar transistor to realize, its key technical indexes is as follows:
Operating frequency: 50～70MHz
Gain: >=30dB
P-1dB: >=5dBm
Output standing wave: 2
Power supply: 8V/18mA
(7) numerical-control attenuator
The numerical-control attenuator using switch switching principle realizes, and feature is low-power consumption, low additive phase, and its major technique refers to
Mark as follows:
Operating frequency: 50～70MHz
Insertion Loss :≤2.5dB
Two condition attenuation: 20 ± 0.5dB, 15 ± 0.8dB
Additive phase :≤1 °
P-1dB: >=0dBm
Output standing wave :≤1.6
Power supply: 5V/6mA
(8) intermediate frequency amplifier
Select InGaP/GaAs MMIC monolithic to realize, P-1dB and output standing wave requirement, its key technical indexes can be met
As follows:
Operating frequency: 50～70MHz
Gain: >=21dB
P-1dB: >=12dBm
Output standing wave :≤2
Power supply: 3.5V/36mA
(9) IF switch
Selecting the hilted broadsword biswitch of the hermetically metal sealing that isolation is high, its key technical indexes is as follows:
Operating frequency: 50～70MHz
Insertion Loss :≤1.5dB
Isolation: >=60dB
P-1dB: >=18dBm
Output standing wave :≤1.5
Power supply: 5V/8mA
(10) power supply is powered
Reception unit power supply electric power thus supplied:
Voltage+5V, electric current 55 × 4+66+6+8=300mA.Voltage+12V, electric current (18+36) × 5=270mA.
3, transmitter unit circuit design
What up-conversion was mainly produced by transmitter unit drives signal to be amplified to meet the power of transmitter needs.
According to index request, transmitter unit uses shallow saturated non-linear so that it is guaranteed that make an uproar mutually and spuious index to reduce, with
Time want guaranteed efficiency, design objective as shown in Figure 4:
(1) driving amplifier design
Selecting TGA4521 to realize, feature is low-power consumption, and its key technical indexes is as follows:
Operating frequency: 34～36GHz
Linear gain: >=19～17dB
P-1dB: >=24dBm
Power supply :+6V/200mA
(2) Designing power amplifier
Selecting TGA4516 to realize, feature is low-power consumption, and its key technical indexes is as follows:
Operating frequency: 34～36GHz
Linear gain: >=19～17dB
Output: >=33dBm
Power supply :+6V/1900mA
4, power supply and control unit circuit design
Power supply and control unit are mainly assembly and provide the conversion of various voltages, control level and the power amplifier pulse power.Root
According to the requirement of assembly channel separation, the process of power supply is particularly critical.In order to obtain preferable isolated from power degree, it is necessary to each list
Unit's individually power supply, takes decoupling to process from each other.Simultaneously for ensureing the high isolation between amplifying circuits at different levels, to different frequency
Use different LC filter circuits that leakage power is carried out decoupling process；Outside TTL pulse is carried out by modulation pulses generation network
Difference shaping, uses PIN driver at high speed, each switch is carried out Pulse Width Control, its switch time≤30ns.
Claims (5)
1. a Five-channel millimeter wave transceiving assembly, it is characterised in that include local oscillator merit subdivision, receive unit, transmitter unit,
Switching switch and power supply and control unit, wherein:
The local oscillation signal merit that outside is provided by described local oscillator merit subdivision is divided into five tunnel outputs, provides for receiving each passage of unit
Local oscillation signal；
Receive unit and be provided with five paths, receive passage, this monitoring passage and a road including a road monitoring passage and 4 tunnels and receive logical
Road shares same intermediate frequency output interface by switching switch switching；
Transmitter unit uses shallow saturated mode to be amplified to meet the power of transmitter needs by launching pumping signal, and by sending out
Machine of penetrating is launched；
Power supply and control unit, for for aforementioned local oscillator merit subdivision, transmitter unit, reception unit provide respectively voltage conversion,
Control level and the power amplifier pulse power.
Assembly the most according to claim 1, it is characterised in that described local oscillator merit subdivision passes through 4 power splitters by local oscillator
Signal merit is divided into 5 tunnels, and each road enters the respective channel receiving unit after an amplifier, and wherein the 5th road signal is amplifying
After an attenuator, enter monitoring passage before.
Assembly the most according to claim 1, it is characterised in that 5 paths structures of described reception unit are identical, all include
Put in the waveguide switch that is sequentially connected with, protection switch, low noise amplifier, frequency mixer, intermediate frequency bridge, attenuator, prime, LC band leads to
Wave filter and final stage are put,
Described waveguide switch receives the signal that described transmitter unit is launched,
Second input source of described frequency mixer is the merit sub-signal that local oscillator merit subdivision produces；
A switching switch is connected after the final stage intermediate frequency amplifier of sense channel and an input channel.
Assembly the most according to claim 3, it is characterised in that GaAs high speed PIN switch selected by described protection switch.
Millimeter wave transceiving assembly the most according to claim 1, it is characterised in that described transmitter unit includes being sequentially connected with
Prime drives power amplifier, final stage power amplifier, isolator and waveguide switch, launches pumping signal and drives power amplifier, final stage through described prime
Power amplifier exports after carrying out signal amplification, and after described isolator, output is to described waveguide switch, and described waveguide switch is carried out
Output is launched after waveguide transitions.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106603091A (en) * | 2017-01-20 | 2017-04-26 | 成都瑞迪威科技有限公司 | Millimeter wave 16-channel transmit-receive frequency conversion channel assembly |
| CN107911084A (en) * | 2017-12-11 | 2018-04-13 | 湖南时变通讯科技有限公司 | A kind of power amplifier |
| CN109120318A (en) * | 2018-11-07 | 2019-01-01 | 上海创远仪器技术股份有限公司 | The circuit structure of local oscillator driving function is realized based on extensive MIMO technique |
| CN109633617A (en) * | 2018-12-19 | 2019-04-16 | 贵州航天电子科技有限公司 | A kind of millimeter wave transceiving front end extracted based on single channel target information |
| CN109801907A (en) * | 2019-01-24 | 2019-05-24 | 电子科技大学 | A kind of class co-planar waveguide gold wire bonding interconnection structure for millimeter wave chip package |
| CN109861708A (en) * | 2018-10-24 | 2019-06-07 | 上海无线电设备研究所 | A kind of eight channel receiver of Ku wave band of subminaturization high-isolation |
| CN110808749A (en) * | 2019-11-06 | 2020-02-18 | 山东浪潮人工智能研究院有限公司 | Method for improving isolation of multichannel receiver |
| CN113625351A (en) * | 2021-08-17 | 2021-11-09 | 上海亨临光电科技有限公司 | Method for feeding back voltage value of detector channel |
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2016
- 2016-01-22 CN CN201620064842.8U patent/CN205812005U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106603091A (en) * | 2017-01-20 | 2017-04-26 | 成都瑞迪威科技有限公司 | Millimeter wave 16-channel transmit-receive frequency conversion channel assembly |
| CN106603091B (en) * | 2017-01-20 | 2022-11-01 | 成都瑞迪威科技有限公司 | Millimeter wave 16-channel transceiving frequency conversion channel component |
| CN107911084A (en) * | 2017-12-11 | 2018-04-13 | 湖南时变通讯科技有限公司 | A kind of power amplifier |
| CN109861708A (en) * | 2018-10-24 | 2019-06-07 | 上海无线电设备研究所 | A kind of eight channel receiver of Ku wave band of subminaturization high-isolation |
| CN109120318A (en) * | 2018-11-07 | 2019-01-01 | 上海创远仪器技术股份有限公司 | The circuit structure of local oscillator driving function is realized based on extensive MIMO technique |
| CN109633617A (en) * | 2018-12-19 | 2019-04-16 | 贵州航天电子科技有限公司 | A kind of millimeter wave transceiving front end extracted based on single channel target information |
| CN109633617B (en) * | 2018-12-19 | 2023-05-23 | 贵州航天电子科技有限公司 | Millimeter wave receiving and dispatching front end based on single-channel target information extraction |
| CN109801907A (en) * | 2019-01-24 | 2019-05-24 | 电子科技大学 | A kind of class co-planar waveguide gold wire bonding interconnection structure for millimeter wave chip package |
| CN110808749A (en) * | 2019-11-06 | 2020-02-18 | 山东浪潮人工智能研究院有限公司 | Method for improving isolation of multichannel receiver |
| CN113625351A (en) * | 2021-08-17 | 2021-11-09 | 上海亨临光电科技有限公司 | Method for feeding back voltage value of detector channel |
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Address after: 210042 building 3, no.6, Suyuan Road, Xuanwu District, Nanjing City, Jiangsu Province Patentee after: Nanjing Yubao Technology Co.,Ltd. Address before: 210042 building 3, no.6, Suyuan Road, Xuanwu District, Nanjing City, Jiangsu Province Patentee before: NANJING YOUBEST TECHNOLOGY CO.,LTD. |
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