CN110109082A - A kind of Terahertz Active Radar imaging array of shared antenna - Google Patents
A kind of Terahertz Active Radar imaging array of shared antenna Download PDFInfo
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- CN110109082A CN110109082A CN201910309990.XA CN201910309990A CN110109082A CN 110109082 A CN110109082 A CN 110109082A CN 201910309990 A CN201910309990 A CN 201910309990A CN 110109082 A CN110109082 A CN 110109082A
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- Prior art keywords
- array
- link
- antenna
- terahertz
- transmitting
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- 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
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
- G01S7/4811—Constructional features, e.g. arrangements of optical elements common to transmitter and receiver
Abstract
The present invention discloses a kind of Terahertz Active Radar imaging array of shared antenna, including be located at local oscillator side can receive and or emission mode under the aerial array that works, be made up of control the common antenna of the array element of aerial array transmitting link or receives link bias voltage to realize reception pattern, emission mode and complete transmission-receiving function send-receive operating mode switching, thus make the aerial array respectively and can be used as emission array, receiving array and transmitting-receiving array Three models carry out using.The present invention reduces the use number of aerial array, improves the utilization rate of chip area and reduce processing cost under the premise of not changing imaging scale and not influencing to emit link and receives link normal work.
Description
Technical field
The present invention relates to THz imaging technology fields, are imaged more particularly to a kind of Terahertz Active Radar of shared antenna
Array, especially a kind of framework of Terahertz radar imagery array receiving-transmitting chain common antenna.
Background technique
THz wave is the electromagnetic wave on electromagnetic spectrum between microwave and infrared light, and frequency is on the left side 0.1~10THz
The right side, wavelength correspond to 3mm~30 μm.Terahertz Technology is one of forward position and hot fields of current information science technology research, closely
In the past few years, the extensive concern by countries in the world research institution.Since Terahertz frequency is high, there is very high time-domain spectral noise
Than, and different object absorption Terahertz frequencies is different, generates different spectral characteristics.Therefore, Terahertz Technology quilt
It is increasingly used in imaging field, is realized to the high-precision detection of object.
In the design of terahertz imaging system, it is contemplated that the scale of imaging array is bigger, in order to meet low cost and
The demand of application, advantage of the Terahertz transceiver chip based on semiconductor technology on following products application are more and more brighter
It is aobvious.It is realized in terahertz imaging systematic procedure based on semiconductor technology, because the characteristics of operational characteristic and Terahertz frequency,
Many problems are faced with during design, such as: skin effect, interconnection line, parasitic parameter, transmission loss are big etc..Therefore
When designing Terahertz chip based on semiconductor technology, difficulty is very big, needs to carry out testing step by step in the process of design
Card, and during the test can the performance to each link correctly assessed, if go wrong need it is quick right
Problematic module is positioned.Meanwhile in order to meet practical application request, imager chip needs multiple transceiver modules to form battle array
Column, common the completing imaging of the task.In traditional time division duplex (Time Division Duplexing, referred to as " TDD ") terahertz
It is serious there is coupling is received and dispatched during hereby imaging array is realized, limited, synchronization launching antenna array and reception day is isolated
Linear array only one work.But exist while in this way can be because of dual-mode antenna battle array and occupy a large amount of chip area, greatly
The risk of the big cost for increasing flow processing and design.
In conclusion the terahertz imaging array in order to solve the problems, such as traditional TDD, reduces identical array
Area must just propose that a kind of new Terahertz radar imagery framework improves the utilization rate of imaging array chip area, and can
Reduce the new imaging array framework of processing cost.
Summary of the invention
In view of the technical drawbacks of the prior art, it is an object of the present invention to provide a kind of Terahertz masters of shared antenna
Dynamic radar imagery array.
The technical solution adopted to achieve the purpose of the present invention is:
A kind of Terahertz Active Radar imaging array of shared antenna, including being located at capable of receiving for local oscillator side
The aerial array to work under He or emission mode, pass through control constitute aerial array array element common antenna transmitting link
Or the bias voltage of receives link is to realize in reception pattern, emission mode and the send-receive work for completing transmission-receiving function
The switching of operation mode can be used as emission array, receiving array and transmitting-receiving array Three models to make the aerial array respectively
Come carry out using.
The aerial array include it is multiple can receive and or emission mode under the array element that works, between multiple array elements
It is connected, the antenna of each array element is reconfigurable antenna, and the reconfigurable antenna, which is separately connected, receives circuit and transmitting electricity
Road；The biasing circuit for receiving circuit and being separately connected control transmitting link or receives link switch state with transmit circuit.
Between adjacent two oscillator of the local oscillator, introduce phase shift respectively in the horizontal and vertical directions
Device realizes that difference control changes the phase of row and column on array respectively, for adjusting the phase and frequency of local oscillator, from
And realize the Phase synchronization and extraction of local oscillator at different location in array, complete the active of entire Terahertz array at
Picture.
The Active Radar Imager Architecture of Terahertz duplexer array proposed by the present invention is not changing imaging scale
Under the premise of, the transmitting-receiving array in traditional TDD imager chip is effectively optimized, the think of shared by dual-mode antenna array
Think, the demand of emission array link had not only been able to satisfy using an aerial array but also is able to satisfy the demand of receiving array link.
Wherein, the antenna of the array element in aerial array is reconfigurable antenna, by combining reconfigurable antenna and control to emit
Link or the bias voltage of receives link are to realize the switching of different modes.
It is big in this way under the premise of not changing array scale by transmitting-receiving array link by sharing an aerial array
It improves the utilization rate of chip area greatly and reduces processing cost, chip area reduces by 40%, and cost also reduces by 40%；
It can also be controlled simultaneously by bias voltage as any in these three modes of transmitter, receiver or transceiver
It is a kind of to work, considerably increase chip can practicability, meet the needs of plurality of application scenes.
In addition, the present invention is based on semiconductor technology, convenient for integrated with back-end circuit, it is easy to accomplish scale of mass production, in turn
The further cost for reducing subsequent product exploitation.
Detailed description of the invention
Fig. 1-2 is the radar transmit-receive array of traditional TDD and the structural schematic diagram of array element；
Fig. 3-4 is the structural schematic diagram of Terahertz shared antenna Active Radar imaging array of the present invention and array element；
Fig. 5 a-5c is the schematic diagram of the transmitting-receiving implementation of the array element of imaging array of the present invention；
Fig. 6 is the synchronous schematic diagram of control Array oscillator proposed by the present invention.
Specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that described herein
Specific embodiment be only used to explain the present invention, be not intended to limit the present invention.
Illustrate technical solution of the present invention in order to clearer, it is with reference to the accompanying drawing, right by taking array scale is 4 × 4 as an example
The present invention is described further.
Fig. 1-2 is the Terahertz radar imagery structure of traditional TDD, and the aerial array position 100 of transmitting is in local oscillator
300 left side, received aerial array position 200 is in the right of local oscillator.Wherein, the battle array of the aerial array position 100 of transmitting
By transmitting antenna 1 and transmitting (Transmitter, referred to as " Tx "), circuit is constituted member 10, and received aerial array position 200 is by connecing
It receives antenna and receives (Receiver, referred to as " Rx ") circuit and constitute.Two aerial arrays exist simultaneously, and occupy a large amount of chip
Area.Processing cost is increased, while also increasing the complexity of design.
The Terahertz Active Radar imaging array of shared antenna provided by the invention is all based on semiconductor technology to carry out reality
Now and design.Improved for shown in Fig. 1-2, the antenna for emitting link and receives link is carried out it is shared, such as Fig. 3-4 institute
Show, aerial array 110 is arranged on entire chip, and side is local oscillator 310, and aerial array 110 can be respectively as transmitting battle array
Column, receiving array and transmitting-receiving array Three models carry out using.
Wherein, the array element 11 in aerial array 110 is connected by receiving-transmitting chain 12, and array element 11 includes receiving 3 He of antenna
Transceiver (Transceiver, referred to as " TRx ") circuit 4 of dual-mode antenna is connected, which includes Tx circuit 41 and Rx
Circuit 42, they have collectively constituted the array element 11 of an aerial array 110.The composition of the array element 11 of each aerial array 110
As illustrated in figs. 5 a-5 c, biasing circuit A provides biasing for the normal work of Tx circuit, and biasing circuit B is the normal work of Rx circuit
Biasing is provided.Fig. 5 a is the array element structure based on reconfigurable antenna composition.
In the present invention, realized by the state of the biasing circuit of the transmitting link or receives link of control array element to entire
The setting of chip operation state.When biasing circuit A and B are respectively at the state of on and off, chip is in emission mode, such as Fig. 5 b
It is shown；When biasing circuit A and B are respectively at the state of off and on, chip in a receive mode, as shown in Figure 5 c；When with one
Specific frequency is switched fast the switch state of biasing circuit A and biasing circuit B, and chip can be in transmitting and reception pattern
It is lower rapidly to be switched, complete entire transmission-receiving function.
In Fig. 6, in order to guarantee the normal work of array, phase shifter (Phase is introduced between two adjacent oscillators
Shifter, referred to as " PS "), for adjusting the phase and frequency of oscillator to realize in array oscillator at different location
Phase synchronization.Specific synchronization principles are illustrated below with reference to two-dimentional Adler equation.As shown in Equation 1.
In formula (1), ω0The original frequency of oscillator is represented, k is constant,Represent same row (row) phase
The phase difference of adjacent two oscillators itself, ψcol(ψrow) represent phase shifter between the two neighboring oscillator of every a (row) and generate
Phase change, ω represents the final angular frequency of oscillator.
By formula (1) it is found that the phase and frequency of each element in array is related with adjacent element.If on ranks
All coupled phase (ψrowAnd ψcoL) locking frequency of equivalent change, oscillator will change, but phaseIt keeps not
Become.For example, the phase equivalent when all couplings increases, the frequency of oscillator will be reduced to be kept with the phase difference for guaranteeing oscillator
Constant.On the other hand, if the (± ψ in the form of differencerow/±ψcol) change oscillator between coupling phase shifter, adjacent vibration
The relative phase for swinging device will change but frequency is constant.
Therefore, by introduce in the horizontal and vertical directions phase shifter realize difference control respectively come change array uplink and
The phase of column, and then the Phase synchronization and extraction of entire Array oscillator may be implemented, complete the active of entire Terahertz array
Imaging.
The present invention innovatively proposes to adopt from the point of view of imaging array system scale bring area and processing cost
Meet transmitting and received requirement simultaneously with an aerial array, is not changing imaging scale and do not influencing to emit link and receive
Under the premise of link works normally, the use number of aerial array is reduced, the utilization rate and reduction for improving chip area are processed into
This, realizes the design of Terahertz Active Radar imaging array.
The above is only a preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (3)
1. a kind of Terahertz Active Radar imaging array of shared antenna, which is characterized in that including being located at local oscillator side
Can receive and or emission mode under the aerial array that works, the common antenna of the array element of aerial array is made up of control
Emit the bias voltage of link or receives link to realize in reception pattern, emission mode and the hair for completing transmission-receiving function
The switching of operating mode is penetrated-received, can be used as emission array, receiving array and transmitting-receiving array to make the aerial array respectively
Three models come carry out using.
2. the Terahertz Active Radar imaging array of shared antenna as described in claim 1, which is characterized in that the aerial array packet
Include it is multiple can receive and or emission mode under the array element that works, be connected between multiple array elements, the day of each array element
Line is reconfigurable antenna, and the reconfigurable antenna, which is separately connected, receives circuit and transmit circuit；The reception circuit and transmitting electricity
Road is separately connected the biasing circuit of control transmitting link or receives link switch state.
3. the Terahertz Active Radar imaging array of shared antenna as described in claim 1, which is characterized in that the local oscillator
Adjacent two oscillator between, introduce phase shifter respectively in the horizontal and vertical directions, realize that difference control changes respectively
The change in formation arranges the phase of upper row and column, for adjusting the phase and frequency of local oscillator, to realize in array at different location
The Phase synchronization and extraction of local oscillator complete the Active Imaging of entire Terahertz array.
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| CN201910309990.XA CN110109082A (en) | 2019-04-17 | 2019-04-17 | A kind of Terahertz Active Radar imaging array of shared antenna |
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| CN201910309990.XA CN110109082A (en) | 2019-04-17 | 2019-04-17 | A kind of Terahertz Active Radar imaging array of shared antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557762A (en) * | 2019-09-25 | 2021-03-26 | 天津大学 | High-precision terahertz near field imaging array unit |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6008755A (en) * | 1996-10-23 | 1999-12-28 | Murata Manufacturing Co., Ltd. | Antenna-shared distributor and transmission and receiving apparatus using same |
| CN1354899A (en) * | 2000-03-06 | 2002-06-19 | 三菱电机株式会社 | Transmitting and receiving antenna |
| CN1538766A (en) * | 2003-10-24 | 2004-10-20 | 中兴通讯股份有限公司 | Time division duplex receiving sending switch device |
| CA2433660A1 (en) * | 2003-06-26 | 2004-12-26 | Rftune Inc. | A system for a smart antenna |
| CN1723588A (en) * | 2003-01-08 | 2006-01-18 | 株式会社国际电气通信基础技术研究所 | Array antenna control device and array antenna device |
| US20090033547A1 (en) * | 2007-07-30 | 2009-02-05 | Kabushiki Kaisha Toshiba | Transmit/receive module |
| CN101680945A (en) * | 2007-04-02 | 2010-03-24 | 独立行政法人情报通信研究机构 | Microwave/millimeter wave sensor apparatus |
| JP2011055094A (en) * | 2009-08-31 | 2011-03-17 | Sony Corp | Radio transmission system, radio communication device, and radio communication method |
| CN103117729A (en) * | 2013-01-20 | 2013-05-22 | 复旦大学 | Coupled oscillator array based on zero-phase shifter used in phased array system |
| US20130188041A1 (en) * | 2012-01-19 | 2013-07-25 | Canon Kabushiki Kaisha | Detecting device, detector, and imaging apparatus using the same |
| CN203519823U (en) * | 2013-10-28 | 2014-04-02 | 武汉大学 | High-power shortwave broadband transmit-receive switch |
| CN103901404A (en) * | 2014-03-14 | 2014-07-02 | 中国工程物理研究院电子工程研究所 | MMAOP framework applicable to terahertz radar and communication system |
| CN103954933A (en) * | 2014-04-29 | 2014-07-30 | 中国人民解放军国防科学技术大学 | Radar signal processing method based on terahertz wave band |
| JP2014230071A (en) * | 2013-05-22 | 2014-12-08 | 株式会社東芝 | Antenna transmission/reception module and transmission/reception switch |
| WO2015176427A1 (en) * | 2014-05-23 | 2015-11-26 | 中兴通讯股份有限公司 | Radio frequency transmission/reception method and system |
| CN106253940A (en) * | 2016-09-07 | 2016-12-21 | 清华大学 | A kind of Terahertz Active Imaging transceiver of integrated on-chip antenna |
| WO2018103677A1 (en) * | 2016-12-06 | 2018-06-14 | 中兴通讯股份有限公司 | Microwave antenna array communication system and communication method |
| CN109378578A (en) * | 2018-09-19 | 2019-02-22 | 天津大学 | Dielectric resonator antenna and aerial array on the silicon chip of high radiation efficiency high-gain |
-
2019
- 2019-04-17 CN CN201910309990.XA patent/CN110109082A/en active Pending
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6008755A (en) * | 1996-10-23 | 1999-12-28 | Murata Manufacturing Co., Ltd. | Antenna-shared distributor and transmission and receiving apparatus using same |
| CN1354899A (en) * | 2000-03-06 | 2002-06-19 | 三菱电机株式会社 | Transmitting and receiving antenna |
| CN1723588A (en) * | 2003-01-08 | 2006-01-18 | 株式会社国际电气通信基础技术研究所 | Array antenna control device and array antenna device |
| CA2433660A1 (en) * | 2003-06-26 | 2004-12-26 | Rftune Inc. | A system for a smart antenna |
| CN1538766A (en) * | 2003-10-24 | 2004-10-20 | 中兴通讯股份有限公司 | Time division duplex receiving sending switch device |
| CN101680945A (en) * | 2007-04-02 | 2010-03-24 | 独立行政法人情报通信研究机构 | Microwave/millimeter wave sensor apparatus |
| US20090033547A1 (en) * | 2007-07-30 | 2009-02-05 | Kabushiki Kaisha Toshiba | Transmit/receive module |
| JP2011055094A (en) * | 2009-08-31 | 2011-03-17 | Sony Corp | Radio transmission system, radio communication device, and radio communication method |
| US20130188041A1 (en) * | 2012-01-19 | 2013-07-25 | Canon Kabushiki Kaisha | Detecting device, detector, and imaging apparatus using the same |
| CN103117729A (en) * | 2013-01-20 | 2013-05-22 | 复旦大学 | Coupled oscillator array based on zero-phase shifter used in phased array system |
| JP2014230071A (en) * | 2013-05-22 | 2014-12-08 | 株式会社東芝 | Antenna transmission/reception module and transmission/reception switch |
| CN203519823U (en) * | 2013-10-28 | 2014-04-02 | 武汉大学 | High-power shortwave broadband transmit-receive switch |
| CN103901404A (en) * | 2014-03-14 | 2014-07-02 | 中国工程物理研究院电子工程研究所 | MMAOP framework applicable to terahertz radar and communication system |
| CN103954933A (en) * | 2014-04-29 | 2014-07-30 | 中国人民解放军国防科学技术大学 | Radar signal processing method based on terahertz wave band |
| WO2015176427A1 (en) * | 2014-05-23 | 2015-11-26 | 中兴通讯股份有限公司 | Radio frequency transmission/reception method and system |
| CN106253940A (en) * | 2016-09-07 | 2016-12-21 | 清华大学 | A kind of Terahertz Active Imaging transceiver of integrated on-chip antenna |
| WO2018103677A1 (en) * | 2016-12-06 | 2018-06-14 | 中兴通讯股份有限公司 | Microwave antenna array communication system and communication method |
| CN109378578A (en) * | 2018-09-19 | 2019-02-22 | 天津大学 | Dielectric resonator antenna and aerial array on the silicon chip of high radiation efficiency high-gain |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557762A (en) * | 2019-09-25 | 2021-03-26 | 天津大学 | High-precision terahertz near field imaging array unit |
| CN112557762B (en) * | 2019-09-25 | 2022-09-02 | 天津大学 | High-precision terahertz near field imaging array unit |
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