CN109813731A - A kind of Microwave Scanning equipment and microwave imaging system - Google Patents
A kind of Microwave Scanning equipment and microwave imaging system Download PDFInfo
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- CN109813731A CN109813731A CN201711171407.0A CN201711171407A CN109813731A CN 109813731 A CN109813731 A CN 109813731A CN 201711171407 A CN201711171407 A CN 201711171407A CN 109813731 A CN109813731 A CN 109813731A
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Abstract
The invention discloses a kind of Microwave Scanning equipment and microwave imaging systems.Microwave Scanning equipment includes Microwave emission unit, microwave receiving unit and microwave focusing unit.Microwave emission unit is to emit Wireless microwave signal to tested object.Microwave receiving unit and Microwave emission unit are relative configuration, and this microwave receiving unit is to receive the Wireless microwave signal for penetrating tested object.Microwave focusing unit is configured between Microwave emission unit and microwave receiving unit, that not yet will carry out microwave focusing and energy modality conversion to the Wireless microwave signal of tested object.Microwave imaging system includes above-mentioned Microwave Scanning equipment.The present invention microwave focusing can be carried out to Wireless microwave signal and energy modality is converted, and to promote the intensity for the Wireless microwave signal for penetrating tested object, and can reduce the generation of signal reflex interference, and then solve the problems, such as that microwave imaging is distorted.
Description
Technical field
The present invention relates to a kind of Microwave Scanning equipment and microwave imaging systems, and more particularly to one kind there is microwave to focus
The Microwave Scanning equipment and microwave imaging system of unit.
Background technique
In the microwave imaging system of medical application, it can be examined by Wireless microwave signal that microwave coupling antenna is received and dispatched
Survey the health status of human internal organs.By applying in the microwave image reduction technique of microwave imaging system, it can be achieved that non-invade
Enter formula health diagnosis function.The image reduction quality of microwave imaging system and the efficiency of antenna are highly relevant.It is well known, however, that transmitting
The field pattern of antenna all be easy to cause radiation to dissipate, the generation for causing signal reflex to be interfered, and causes signal received ineffective
And the problem of microwave imaging distortion.
Summary of the invention
The purpose of the invention is to provide a kind of Microwave Scanning equipment and microwave imaging systems, can Wireless microwave signal
Microwave focusing and energy modality conversion are carried out, to promote the intensity for the Wireless microwave signal for penetrating tested object, and letter can be reduced
The generation of number reflection interference, and then solve the problems, such as that microwave imaging is distorted.
Above-mentioned purpose according to the present invention proposes a kind of Microwave Scanning equipment, this Microwave Scanning equipment includes Microwave emission
Unit, microwave receiving unit and microwave focusing unit.Microwave emission unit is to emit Wireless microwave signal to tested object.
Microwave receiving unit and Microwave emission unit are relative configuration, and this microwave receiving unit is to receive the nothing for penetrating tested object
Line microwave signal.Microwave focusing unit is configured between Microwave emission unit and microwave receiving unit, to will not yet to by
The Wireless microwave signal for surveying object carries out microwave focusing and energy modality conversion.
An embodiment according to the present invention, the material of above-mentioned microwave focusing unit are selected from by FR4, aluminium oxide, RT-
Group composed by Duroid series, RO series, high-temperature co-fired ceramics, low-temperature co-fired ceramics, transparent conductor substrate and semiconductor
At least one of.
Another embodiment according to the present invention, above-mentioned microwave receiving unit are total comprising rectangular ring coaxial line, rectangular ring
Surface wave conducting wire, the rectangular ring line of rabbet joint or rectangular ring band line.
Another embodiment according to the present invention, above-mentioned Microwave emission unit include standard type guided wave tubular type electromagnetic horn, double
Ridge wideband electromagnetic horn, double ridge widebands opening electromagnetic horn, dual polarization wideband electromagnetic horn or dual polarization wideband opening loudspeaker day
Line.
Another embodiment according to the present invention, above-mentioned microwave focusing unit include first to tertiary focusing structure, wherein the
One focusing structure and tertiary focusing structure are respectively facing Microwave emission unit and microwave receiving unit, and the second focusing structure sandwiched
Between the first focusing structure and tertiary focusing structure.
Another embodiment according to the present invention, the plane length and plane width of above-mentioned second focusing structure are respectively above-mentioned
1.5 times to 2.5 times of the plane length of each of first focusing structure and above-mentioned tertiary focusing structure and plane width.
Another embodiment according to the present invention, above-mentioned first to tertiary focusing structure is elliptic cylindrical shape structure, and above-mentioned
The plane length and plane width of each of one focusing structure and above-mentioned tertiary focusing structure are about 3.6 λ and 1.8 respectively
λ, the plane length and plane width of above-mentioned second focusing structure are about 7.2 λ and 3.6 λ respectively, and wherein λ is above-mentioned microwave hair
Penetrate the wavelength for the Wireless microwave signal that unit is emitted.
Another embodiment according to the present invention, above-mentioned microwave focusing unit are about at a distance from above-mentioned Microwave emission unit
2.5 λ to 3.5 λ, above-mentioned microwave focusing unit are about 4 λ to 5 λ at a distance from above-mentioned microwave receiving unit, and wherein λ is above-mentioned micro-
The wavelength for the Wireless microwave signal that wave transmitting unit is emitted.
Another embodiment according to the present invention, the thickness of above-mentioned microwave focusing unit are about 2 λ to 2.5 λ, and wherein λ is upper
State the wavelength for the Wireless microwave signal that Microwave emission unit is emitted.
Above-mentioned purpose according to the present invention separately proposes a kind of microwave imaging system, this microwave imaging system includes above-mentioned micro-
Wave scanning device, microwave signal process unit and control and recording unit.Microwave signal process unit is electrically connected to above-mentioned
Microwave Scanning equipment to receive Wireless microwave signal from above-mentioned Microwave Scanning equipment, and carries out this Wireless microwave signal
Dielectric parameter analysis and image reduction parsing.Control is electrically connected to above-mentioned Microwave Scanning equipment and microwave signal with recording unit
Processing unit, to control above-mentioned Microwave Scanning equipment and the record letter of the Wireless microwave as handled by microwave signal process unit
Number, and data information read-write capability is provided to microwave signal process unit.
It is an advantage of the current invention that Microwave Scanning equipment and microwave imaging system through the invention, it can be to Wireless microwave
Signal carries out microwave focusing and energy modality conversion, to promote the intensity for the Wireless microwave signal for penetrating tested object, and can subtract
The generation of few signal reflex interference, and then solve the problems, such as that microwave imaging is distorted.
Detailed description of the invention
In order to more completely understand embodiment and its advantage, following description is done referring now in conjunction with attached drawing, in which:
Fig. 1 is the block schematic diagram of the microwave imaging system of some embodiments according to the present invention；
Fig. 2 is the configuration diagram of the Microwave Scanning equipment of some embodiments according to the present invention；
Fig. 3 A is the three-dimensional view of the microwave focusing unit of some embodiments according to the present invention；
Fig. 3 B is the plan view of the second focusing structure of Fig. 3 A；
Fig. 3 C is the plan view of first and/or the tertiary focusing structure of Fig. 3 A；
Fig. 4 is the Microwave emission unit of the embodiment of the present invention and comparative example and the return loss result of microwave receiving unit；
And
Fig. 5 A and Fig. 5 B are respectively the electric-field intensity distribution figure of the Microwave Scanning equipment of the embodiment of the present invention and comparative example.
Specific embodiment
The embodiment of the present invention is hashed out below.It is understood, however, that embodiment provides many applicable hairs
Bright concept may be implemented in miscellaneous specific content.The specific embodiment discussed only for explanation, is not limited to
The scope of the present invention.
" coupling " word used in herein, can refer to two or more elements and mutually directly makees entity or be electrically connected with
Touching, or body or in electrical contact is mutually put into effect indirectly, and " coupling " also can refer to two or more element mutual operations or movement.
Although it will be appreciated that " first ", " second ", " third " ... etc. term can be used herein to describe various members
Part, structure and/or part, but these terms should not limit these elements, structure and/or part.These terms are only to distinguish
One element, structure and/or part and another element, structure and/or part.
Fig. 1 is please referred to, Fig. 1 is the block schematic diagram of the microwave imaging system 100 of some embodiments according to the present invention.Microwave
Imaging system 100 can be applied to various suitable microwave image systems, such as the microwave medicine image applied to detection organism
System.For example, microwave imaging system 100 can be applied to such as detecting brain and breast detects, but not limited to this.
As shown in Figure 1, microwave imaging system 100 includes Microwave Scanning equipment 110, microwave signal process unit 120 and control
System and recording unit 130.Microwave Scanning equipment 110 emits Wireless microwave to carry out Microwave Scanning operation to tested object
Signal penetrates the Wireless microwave signal of tested object to tested object and reception.Microwave signal process unit 120 is electrically connected to
Microwave Scanning equipment 110 to receive Wireless microwave signal from Microwave Scanning equipment 110, and carries out Wireless microwave signal
Dielectric parameter analysis and image reduction parsing, and then obtain the scan-image of tested object.Control electrically connects with recording unit 130
It is connected to Microwave Scanning equipment 110 and microwave signal process unit 120, to control Microwave Scanning equipment 110 and record by micro-
Wireless microwave signal handled by wave signal processing unit, and provide data information to microwave signal process unit 120 and read and write function
Energy.
Referring to figure 2., Fig. 2 is the configuration diagram of the Microwave Scanning equipment 200 of some embodiments according to the present invention.Microwave
Scanning device 200 can be the Microwave Scanning equipment 110 in microwave imaging system 100, or can be applied to other microwave imaging systems
System.
In Microwave Scanning equipment 200, Microwave emission unit 210 is to emit Wireless microwave signal to tested object B.It is micro-
Wave transmitting unit 210 may include standard type guided wave tubular type electromagnetic horn, double ridge wideband electromagnetic horns, double ridge widebands opening loudspeaker day
Line, dual polarization wideband electromagnetic horn or dual polarization wideband opening electromagnetic horn, but not limited to this.In addition, Microwave emission unit 210
Metal material can be titanium, cobalt, tungsten, hafnium, tantalum, molybdenum, chromium, silver, copper, the alloy of above-mentioned material or other suitable materials.
Microwave focusing unit 220 be set under Microwave emission unit 210 and between Microwave emission unit 210 have away from
From D1, not yet microwave focusing and energy modality conversion will be carried out to the Wireless microwave signal of tested object.Microwave focuses
The dielectric constant of unit 220 can be between 2.2 and 12.The material of microwave focusing unit 220 can be microwave focusing unit
Material includes FR4, aluminium oxide, the RT-Duroid series of Rogers company, U.S. production or RO series, high-temperature co-fired ceramics, low
Warm common burning porcelain, transparent conductor substrate, semiconductor, combination of above-mentioned material etc., but not limited to this.In some embodiments, micro-
The overall thickness T of wave focusing unit 220220About 2 λ to 2.5 λ, the Wireless microwave that wherein λ is emitted by Microwave emission unit 210
The wavelength of signal.
Microwave receiving unit 230 may include rectangular ring coaxial line, rectangular ring co-planar waveguide line, the rectangular ring line of rabbet joint or
Rectangular ring band line, but not limited to this.In addition, the metal material of microwave receiving unit 230 can be titanium, cobalt, tungsten, hafnium, tantalum,
Molybdenum, chromium, silver, copper, the alloy of above-mentioned material or other suitable materials.
As shown in Fig. 2, microwave receiving unit 230 is configured in platform 240.Platform 240 includes loading plate 242, mobile list
Member 244 and shell 246.Tested object B can be placed on loading plate 242 and in the vertical direction be located at microwave focusing unit 220 with
Between microwave receiving unit 230.Mobile unit 244 exists to support microwave receiving unit 230 and control microwave receiving unit 230
Position in shell 246.In other embodiments, platform 240 additionally comprises supporting structure, to support transmitting antenna 210 and/
Or microwave focusing unit 220.
In Microwave Scanning equipment 200, the distance between Microwave emission unit 210 and microwave focusing unit 220 D1 can be with
It is 2.5 λ to 3.5 λ, the distance between microwave focusing unit 220 and microwave receiving unit 230 D2 can be 4 λ to 5 λ, and carry
The distance between plate 242 and microwave receiving unit 230 D3 can be about 10 millimeters.In other embodiments, distance D1~D3 can
According to the corresponding adjustment of different operational requirements.
A referring to figure 3., Fig. 3 A are the three-dimensional view of the microwave focusing unit 300 of some embodiments according to the present invention.Microwave
Focusing unit 300 can be the microwave focusing unit 220 in Microwave Scanning equipment 200, or can be applied to other Microwave Scannings and set
Standby or microwave imaging system.
As shown in Figure 3A, microwave focusing unit 300 includes that the first focusing structure 310, the second focusing structure 320 and third are poly-
Close-burning structure 330 connects wherein the first focusing structure 310 and tertiary focusing structure 330 are respectively facing Microwave emission unit 310 with microwave
Unit 330 is received, and the second focusing structure 320 is located between the first focusing structure 310 and tertiary focusing structure 330.Second is poly-
The plane domain of the first focusing structure 310 and tertiary focusing structure 330 is covered and be greater than to the plane domain of close-burning structure 320, so that
The electric field for penetrating the second focusing structure 320 is evenly distributed, and then penetrates the electric field convergence of tertiary focusing structure 330, in turn
Reach the microwave focusing and the conversion of energy modality to Wireless microwave signal.In some embodiments, second focusing structure 320
Plane length and plane width be respectively the first focusing structure 310 and/or tertiary focusing structure 330 plane length and plane it is wide
1.5 times to 2.5 times of degree.
In some embodiments, the material of the first focusing structure 310, the second focusing structure 320 and tertiary focusing structure 330
Identical, the first focusing structure 310, the second focusing structure 320 and tertiary focusing structure 330 are elliptic cylindrical shape structure.If microwave
Focusing unit 300 is the microwave focusing unit 220 in Microwave Scanning equipment 200, then the thickness T of the first focusing structure 310310,
The thickness T of two focusing structures 320320With the thickness T of tertiary focusing structure 330330Can respectively be about 0.6 λ, 0.9 λ and 0.6 λ,
And first focusing structure 310 and tertiary focusing structure 330 shape and size it is all the same.As shown in Fig. 3 B and Fig. 3 C, at these
In embodiment, the second focusing structure 320 has plane length L1 and plane width W1, is respectively about 7.2 λ and 3.6 λ, and
First focusing structure 310 has plane length L2 and plane width W2 with tertiary focusing structure 330, be respectively about 3.6 λ with
1.8λ。
Fig. 4 is the return loss result of the Microwave emission unit and microwave receiving unit of the embodiment of the present invention and comparative example,
Wherein the framework of embodiment and comparative example the difference is that, embodiment include microwave focusing unit, but comparative example without microwave focusing
Unit.As shown in Figure 4, in the case where microwave imaging system operates in centre frequency as 9.2GHz, the microwave of embodiment and comparative example is sent out
(S is lost in the return that unit is penetrated in 9.2GHz11) it is respectively about -22.3dB and -6.9dB.Therefore, pass through microwave focusing unit pair
Wireless microwave signal carries out microwave focusing and energy modality conversion, can promote the intensity for penetrating the Wireless microwave signal of tested object
Up to more than three times.
Fig. 5 A and Fig. 5 B are respectively the electric-field intensity distribution figure of the Microwave Scanning equipment of comparative example and the embodiment of the present invention,
The framework of middle embodiment and comparative example the difference is that, embodiment includes microwave focusing unit, but comparative example focused without microwave it is single
Member.Compare Fig. 5 A and Fig. 5 B it is found that the Microwave Scanning equipment of comparative example fails to restrain electric field gradually downwards, and embodiment is micro-
Wave scanning device cannot not be such that electric field gradually restrains after penetrating microwave focusing structure under.Therefore, with microwave focusing unit
Microwave Scanning equipment effectively can carry out microwave focusing to Wireless microwave signal and energy modality is converted.
In conclusion Microwave Scanning equipment and microwave imaging system through the invention, can carry out Wireless microwave signal
Microwave focuses and energy modality conversion, and to promote the intensity for the Wireless microwave signal for penetrating tested object, and it is anti-to reduce signal
The generation that blackberry lily is disturbed, and then solve the problems, such as that microwave imaging is distorted.
Although the present invention has been disclosed by way of example above, it is not intended to limit the present invention., any technical field
In technical staff, without departing from the spirit and scope of the present invention, when can make some changes and embellishment, therefore guarantor of the invention
Subject to shield range ought be defined depending on claim.
Claims (10)
1. a kind of Microwave Scanning equipment, characterized by comprising:
Microwave emission unit, to emit Wireless microwave signal to tested object；
Microwave receiving unit, is relative configuration with the Microwave emission unit, and the microwave receiving unit penetrates institute to receive
State the Wireless microwave signal of tested object；And
Microwave focusing unit is configured between the Microwave emission unit and the microwave receiving unit, and the microwave focuses single
Member will be that not yet will carry out microwave focusing and energy modality conversion to the Wireless microwave signal of the tested object.
2. Microwave Scanning equipment as described in claim 1, which is characterized in that the material of the microwave focusing unit be selected from by
It FR4, aluminium oxide, RT-Duroid series, RO series, high-temperature co-fired ceramics, low-temperature co-fired ceramics, transparent conductor substrate and partly leads
At least one of group composed by body.
3. Microwave Scanning equipment as described in claim 1, which is characterized in that the microwave receiving unit includes that rectangular ring is same
Axis, rectangular ring co-planar waveguide line, the rectangular ring line of rabbet joint or rectangular ring band line.
4. Microwave Scanning equipment as described in claim 1, which is characterized in that the Microwave emission unit includes standard type guided wave
Tubular type electromagnetic horn, double ridge wideband electromagnetic horns, double ridge widebands opening electromagnetic horn, dual polarization wideband electromagnetic horn or dual polarization
Wideband opening electromagnetic horn.
5. Microwave Scanning equipment as described in claim 1, which is characterized in that the microwave focusing unit includes the first focusing knot
Structure, the second focusing structure and tertiary focusing structure, wherein first focusing structure is respectively facing with the tertiary focusing structure
The Microwave emission unit and the microwave receiving unit, and second focusing structure be located in first focusing structure with
Between the tertiary focusing structure.
6. Microwave Scanning equipment as claimed in claim 5, which is characterized in that the plane length of second focusing structure and flat
Face width is respectively the plane length and plane width of each of first focusing structure and the tertiary focusing structure
1.5 times to 2.5 times.
7. such as Microwave Scanning equipment described in claim 5 or 6, which is characterized in that first focusing structure, described second gather
Close-burning structure and the tertiary focusing structure are elliptic cylindrical shape structure, in first focusing structure and the tertiary focusing structure
The plane length of each and plane width be respectively 3.6 λ and 1.8 λ, the plane length and plane of second focusing structure
Width is respectively 7.2 λ and 3.6 λ, the wavelength for the Wireless microwave signal that wherein λ is emitted by the Microwave emission unit.
8. Microwave Scanning equipment as described in claim 1, which is characterized in that the microwave focusing unit and the Microwave emission
The distance of unit greatly 2.5 λ to 3.5 λ, the microwave focusing unit are 4 λ to 5 λ at a distance from the microwave receiving unit,
The wavelength for the Wireless microwave signal that middle λ is emitted by the Microwave emission unit.
9. Microwave Scanning equipment as described in claim 1, which is characterized in that the microwave focusing unit with a thickness of 2 λ extremely
2.5 λ, the wavelength for the Wireless microwave signal that wherein λ is emitted by the Microwave emission unit.
10. a kind of microwave imaging system, characterized by comprising:
Microwave Scanning equipment as described in any one of claim 1 to 9；
Microwave signal process unit, is electrically connected to the Microwave Scanning equipment, and the microwave signal process unit is to from institute
It states Microwave Scanning equipment and receives the Wireless microwave signal, and dielectric parameter analysis and image are carried out to the Wireless microwave signal
Reduction parsing；And
Control and recording unit, are electrically connected to the Microwave Scanning equipment and the microwave signal process unit, the control
With recording unit to control the Microwave Scanning equipment and the record nothing as handled by the microwave signal process unit
Line microwave signal, and data information read-write capability is provided to the microwave signal process unit.
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| CN201711171407.0A CN109813731A (en) | 2017-11-22 | 2017-11-22 | A kind of Microwave Scanning equipment and microwave imaging system |
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| CN201711171407.0A CN109813731A (en) | 2017-11-22 | 2017-11-22 | A kind of Microwave Scanning equipment and microwave imaging system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103078160A (en) * | 2013-01-15 | 2013-05-01 | 武汉大学 | Microwave super-resolution focusing device |
| CN103901048A (en) * | 2014-04-02 | 2014-07-02 | 华南师范大学 | Microwave imaging device and method |
| TW201620204A (en) * | 2014-11-25 | 2016-06-01 | 財團法人金屬工業研究發展中心 | Microstrip antenna structure and microwave imaging system using the same |
| TW201620444A (en) * | 2014-12-08 | 2016-06-16 | 財團法人金屬工業研究發展中心 | Microwave imaging system and control method thereof |
| WO2017180175A1 (en) * | 2016-04-12 | 2017-10-19 | Archit Lens Technology Inc. | Large aperture terahertz-gigahertz lens system |
-
2017
- 2017-11-22 CN CN201711171407.0A patent/CN109813731A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103078160A (en) * | 2013-01-15 | 2013-05-01 | 武汉大学 | Microwave super-resolution focusing device |
| CN103901048A (en) * | 2014-04-02 | 2014-07-02 | 华南师范大学 | Microwave imaging device and method |
| TW201620204A (en) * | 2014-11-25 | 2016-06-01 | 財團法人金屬工業研究發展中心 | Microstrip antenna structure and microwave imaging system using the same |
| TW201620444A (en) * | 2014-12-08 | 2016-06-16 | 財團法人金屬工業研究發展中心 | Microwave imaging system and control method thereof |
| WO2017180175A1 (en) * | 2016-04-12 | 2017-10-19 | Archit Lens Technology Inc. | Large aperture terahertz-gigahertz lens system |
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Application publication date: 20190528 |