CN103036002B - Sensing equipment - Google Patents
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- CN103036002B CN103036002B CN201110295894.8A CN201110295894A CN103036002B CN 103036002 B CN103036002 B CN 103036002B CN 201110295894 A CN201110295894 A CN 201110295894A CN 103036002 B CN103036002 B CN 103036002B
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Abstract
The invention provides a kind of sensing equipment, including sensor and a Super-material antenna, Super-material antenna includes a medium substrate and is arranged at feeder line and the metal structure that a distributing point on one surface of medium substrate is connected with distributing point；Feeder line is intercoupled with the metal structure；Super-material antenna receives the signal of telecommunication of sensor output, and converts electrical signals to electromagnetic wave signal injection.The sensing equipment of the present invention adopts Super-material antenna technology, the miniaturization of antenna and built-in can be realized, sent as an envoy to based on Super-material antenna Technology design the Super-material antenna of a wave band, the electromagnetism wave resonance of two or more different-waveband, determine that the physical size of the metal structure size of the antenna volume is not limited by the physical length of half-wavelength, corresponding antenna can be gone out according to sensing equipment size design itself, disclosure satisfy that the demand of sensing equipment miniaturization, built-in antenna.
Description
Technical field
The invention belongs to sensory field, and in particular to a kind of sensing equipment with Super-material antenna.
Background technology
Sensor is the device or dress that can be experienced the measured piece of regulation and available signal is converted into according to certain rule
Put, be generally made up of sensing element and conversion element.Sensor is a kind of detection means, can experience measured information, and
The information that detection can be experienced, is for conversion into the information output of the signal of telecommunication or other desired forms according to certain rules, to meet
The transmission of information, process, storage, display, record and control etc. to require, it is the primary ring realized automatic detection He automatically control
Section.Sensor can be divided into that pressure is quick according to purposes and force-sensing sensor, position sensor, liquid level sensor, energy consumption sensor,
Velocity sensor, acceleration transducer, ray radiation sensors, heat sensitive sensor, 24GHz radar sensors etc., it usually needs
Information transmission sensor exported by data wire to information receiving end, due to using for environment or temporary information receiving terminal
Be not suitable for signal conveying being carried out using data wire, and can only complete by the mode being wirelessly transferred.
But during above-mentioned wireless way for transmitting sensor output information, electronic circuit fast throughput is not required nothing more than, and
And the requirement to being wirelessly transferred device-antenna is high speed, ultra broadband, jumbo transmission these information.Antenna is used as finally penetrating
The radiating element and receiving device of frequency signal, its operating characteristic will directly affect the service behaviour of whole electronic system.But day
The important indicators such as the size of line, bandwidth, gain but receive basic physical principle restriction (gain margin under fixed dimension,
Bandwidth limit etc.).The ultimate principle of these index limit causes the miniaturization technology difficulty of antenna considerably beyond other devices,
And the complexity of the electromagnetic field analysis due to radio-frequency devices, approaching these ultimate values all becomes huge technological challenge.
The content of the invention
In order to solve problem present in existing sensing equipment, the invention provides a kind of sensing that wirelessly can be exported sets
It is standby, by using high performance Meta Materials built-in aerial technology, realizing antenna on the premise of sensing equipment performance requirement is met
Miniaturization, built-inization, in order to achieve the above object, the present invention is employed the following technical solutions：
One sensing equipment, including sensor, also including a Super-material antenna, the Super-material antenna includes a medium substrate
The feeder line being connected with the distributing point with the distributing point for being arranged at one surface of the medium substrate and a metal structure；Institute
State feeder line to intercouple with the metal structure；The Super-material antenna receives the signal of telecommunication of the sensor output, and by institute
State the signal of telecommunication and be converted to electromagnetic wave signal injection.
Further, the metal structure is that sheet metal Jing engraves out groove topological structure and forms.
Further, the Super-material antenna also includes ground unit, and the ground unit is symmetrically distributed the feed
Point both sides；Several metallized through holes are provided with the ground unit.
Further, the Super-material antenna also includes a reference ground, and the reference ground is included positioned at the medium substrate
With respect to the first reference ground unit and the second reference ground unit on two surfaces, the first reference ground unit makes the one of the feeder line
End forms microstrip line.
Further, the first reference ground unit and the second reference ground unit are electrically connected to each other.
Further, the medium substrate is provided with some plated-through holes, the first reference ground unit and described
Two reference ground units realize electrical connection by the plated-through hole.
Further, the first reference ground unit is provided with the first metal covering unit and the second metal being electrically connected to each other
Face unit, the first metal covering unit are relative with an end position of the feeder line, are formed one end of the feeder line described micro-
Band wire；The second reference ground unit is provided with the 3rd metal covering unit, the 3rd metal covering unit and second metal
Face cell position is relative.
Further, the medium substrate is located at the second metal covering unit and the 3rd metal covering unit and opens up
There are some plated-through holes, the second metal covering unit is electrically connected by the plated-through hole with the 3rd metal covering unit
Connect.
Further, the second reference ground unit also includes the 4th metal covering unit, the 4th metal covering unit position
In the side of described feeder line one end, and on the bearing of trend of the feeder line, the first metal covering unit and the described 4th
Metal covering unit is electrically connected by the plated-through hole.
Further, the resonance band of the Super-material antenna at least includes 2.4GHz-2.49GHz and 5.72GHz-
5.85GHz。
The sensing equipment of the present invention adopts Super-material antenna technology, can realize the miniaturization of antenna and built-in, based on super
Material antenna technology designs send as an envoy to a wave band, the Super-material antenna of the electromagnetism wave resonance of two or more different-waveband, certainly
The physical size of the metal structure size of the fixed antenna volume is not limited by the physical length of half-wavelength, can be according to sensing equipment
Size design itself goes out corresponding antenna, disclosure satisfy that the demand of sensing equipment miniaturization, built-in antenna.In addition, by built-in
Super-material antenna, it is possible to achieve being wirelessly transferred for the signal that sensor is obtained, has saved required data wire, has reduced environment
Affect.
Description of the drawings
Fig. 1 is the module map of sensing equipment embodiment of the present invention 1；
Fig. 2 is the module map of sensing equipment embodiment of the present invention 2；
Fig. 3 is the front view of the antenna first embodiment in sensing equipment of the present invention；
Fig. 4 is antenna rearview shown in Fig. 3；
Fig. 5 is the antenna first embodiment S parameter analogous diagram of the present invention；
Fig. 6 is the front view of the antenna second embodiment in sensing equipment of the present invention；
Fig. 7 is the front view of the 3rd embodiment of antenna in sensing equipment of the present invention；
Fig. 8 is the metal structure enlarged drawing on second and third embodiment of inventive antenna；
Fig. 9 is the 3rd embodiment S parameter analogous diagram of antenna of the present invention；
Figure 10 be the 3rd embodiment of antenna of the present invention operate in 2.4,2.44,2.48GHz when E directions far field emulation knot
Fruit is schemed；
Figure 11 be the 3rd embodiment of antenna of the present invention operate in 2.4,2.44,2.48GHz when H directions far field emulation knot
Fruit is schemed；
Figure 12 be the 3rd embodiment of antenna of the present invention operate in 5.725,5.8,5.85GHz when the emulation of E directions far field
Result figure；
Figure 13 be the 3rd embodiment of antenna of the present invention operate in 5.725,5.8,5.85GHz when the emulation of H directions far field
Result figure.
Specific embodiment
Sensing equipment of the present invention is further described with specific embodiment below in conjunction with the accompanying drawings.
Refering to Fig. 1, it is the module map of the sensing equipment embodiment 1 in the present invention.Wherein, sensing equipment 100 includes super material
Material antenna 10 and sensor 11.The Super-material antenna 10 receives the signal of telecommunication of the output of sensor 11, and the signal of telecommunication is converted
Project for electromagnetic wave signal.In the present invention, the sensing equipment 100 includes but is not limited to that pressure is quick and force-sensing sensor, position
Put sensor, liquid level sensor, energy consumption sensor, velocity sensor, acceleration transducer, ray radiation sensors, temperature-sensitive to pass
Sensor, 24GHz radar sensors etc..Above-mentioned sensing equipment wirelessly exports the signal of telecommunication and reduces the impact of environment, keeps away
Exempt to use data wire, such that it is able to reduce the application cost of sensing equipment.
Refering to Fig. 2, it is the module map of the embodiment 2 of the sensing equipment of the present invention.Sensor is also as different from Example 1
Signal processing module 111 is included, the non-electrical signal that sensor 11 is exported can be converted to by electricity by signal processing module 111
Signal, then export to Super-material antenna 10.
In sensing equipment of the present invention, antenna is formed based on artificial electromagnetic material Technology design, artificial electromagnetic material refer to by
Sheet metal engraves into the topological metal structure of given shape, and the topological metal structure of the given shape is arranged at certain Jie
The equivalent extraordinary electromagnetic material of processing and manufacturing on electric constant and pcrmeability base material, its performance parameter depend primarily on its sub-wavelength
Given shape topological metal structure.In resonance band, artificial electromagnetic material generally embodies the dispersion characteristics of height, changes speech
It, the impedance of antenna, holds perceptual, equivalent dielectric constant and pcrmeability as frequency can occur violent change.Thus can adopt
The fundamental characteristics of above-mentioned antenna is transformed with artificial electromagnetic material technology so that the medium substrate that metal structure is depended on which
A highly dispersed extraordinary electromagnetic material is constituted equally, the new antenna abundant so as to realize radiation characteristic.It is detailed below
It is thin to introduce using several embodiments in sensing equipment：
First embodiment
Fig. 3 and Fig. 4 is seen also, Super-material antenna 10 includes medium substrate 1, metal structure 2, feeder line 3 and reference ground
41st, 42, the medium substrate 1 is in rectangular tabular, and which can be by high molecular polymer, ceramics, ferroelectric material, ferrite material or ferromagnetic
The materials such as material are made.In the present embodiment, the material of the medium substrate 1 is made using glass material (FR4), thus not only
Low cost, and can ensure to keep good antenna operating characteristics in different operating frequencies.
The metal structure 2, feeder line 3 and reference ground 41,42 are respectively placed in the two relative surfaces of the medium substrate 1
On, the metal structure 2, feeder line 3 and reference ground 41,42 form Super-material antenna, the Meta Materials day with the medium substrate 1
The performance of line depends on the metal structure 2, and in resonance band, Meta Materials generally embody the dispersion characteristics of height, i.e. its resistance
Resist, hold perceptual, equivalent dielectric constant and pcrmeability as frequency can occur violent change, thus by changing the metal
The fundamental characteristics of structure 2 and medium substrate 1, just so that the metal structure 2 equally constitutes one according to Lip river with medium substrate 1
The highly dispersed extraordinary electromagnetic material of human relations hereby material resonances model.
Fig. 5 is referred to, the working frequency range of the Super-material antenna in the present embodiment is 2.4GHZ～2.49GHZ and 5.72GHZ
～5.85GHZ, the gain of above-mentioned two frequency range is respectively up to 3.58dBi and 3.14dBi.It is understood that can arrange super
10 response frequencies of material antenna are 2.4GHZ～2.49GHZ frequency ranges, i.e. single-band antenna.
The feeder line 3 is arranged on the side of the metal structure 2, and the length direction along the metal structure 2 extends,
Which is intercoupled with the metal structure 2, wherein, one end bending of the feeder line 3 extends to 2 end one of the metal structure
Side.Additionally, capacitive electrical element can be embedded in space as needed between the feeder line 3 and metal structure 2, by embedded
Capacitive electrical element regulation feeder line 3 is coupled with the signal between metal structure 2, by formula：), it is known that electric capacity
The size and operating frequency of value square are inversely proportional to, so when the operating frequency for needing is relatively low operating frequency, can pass through
It is appropriately embed the realization of capacitive electrical element.The capacitance value range of the capacitive electrical element of addition generally between 0-2pF, but
As the embedded capacitance of the change of operating frequency of antenna is likely to the scope beyond 0-2pF.
The reference ground is located at the side of the feeder line 3, make the feeder line 3 positioned at the one of 2 end of the metal structure
End forms microstrip line 31.In the present embodiment, the reference ground includes the first reference ground unit 41 and the second reference ground unit 42,
The first reference ground unit 41 and the second reference ground unit 42 are respectively positioned at relative two surfaces of the medium substrate 1.It is described
First reference ground unit 41 is provided with the first metal covering unit 411 and the second metal covering unit 412 being electrically connected to each other.Described
Two reference ground units 42 are located at the same side of the medium substrate 1 with the feeder line 3, and are provided with the 3rd metal covering unit 421
And the 4th metal covering unit 422.
The first metal covering unit 411 is relative with 3 position of the feeder line, makes tying positioned at the metal for the feeder line 3
One end of 2 end of structure forms the microstrip line 31, i.e., described reference ground is for virtually.The second metal covering unit 412 and institute
State 421 position of the 3rd metal covering unit relative.The 3rd metal covering unit 421 is located at one end of the metal structure 2, described
3rd metal covering unit 421 is in long side tabular, and identical with the bearing of trend of the feeder line 3.The medium substrate 1 is located at institute
State and at the second metal covering unit 412 and the 3rd metal covering unit 421, offer some plated-through holes 5, second gold medal
Category face unit 412 is electrically connected by the plated-through hole 5 with the 3rd metal covering unit 421.
The 4th metal covering unit 422 is located at the side of 3 one end of the feeder line, and positioned at the extension side of the feeder line 3
Upwards.If the medium substrate 1 is located at the first metal covering unit 411 and the 4th metal covering unit 422 and offers
Dry plated-through hole 5, the first metal covering unit 411 pass through the plated-through hole 5 with the 4th metal covering unit 422
Electrical connection.The microstrip line 31 is formed by the one end of the first metal covering unit 411 with the feeder line 3, thus outside can be reduced
Signal interference of the signal to transmitting on the feeder line 3, improves antenna gain, realizes preferable impedance matching, material-saving, into
This is low.Arranged by cleverly position between first metal covering unit, 411 to the 4th metal covering unit 422, thus make institute
State reference ground and take less space, just realize larger area.Additionally, by arranging the plated-through hole 5, thus can enter
One step improves the area of the reference ground.
In sum, Super-material antenna of the invention is by the critically topographic morphologies of control metal structure 2 and layout institute
Microstrip line 31 is stated, effective dielectric constant and the pcrmeability distribution for needing is obtained, is enabled the antenna to realize preferably in working frequency range
Impedance matching, expeditiously complete energy conversion, and obtain preferable radiation pattern, which takes small volume, to environmental requirement
Low, high gain, applied range are suitable for the built-in aerial of sensing equipment.
Second embodiment
As shown in fig. 6, the structural representation of the Super-material antenna 10 for the embodiment of the present invention.Meta Materials in the present embodiment
Antenna 10 includes medium substrate 7 and the distributing point 5 being arranged on medium substrate 7, the feeder line 4 being connected with the distributing point 5, flat
The metal structure 6 of panel shape.Wherein, feeder line 4 is intercoupled with metal structure 6；Metal structure 6 is that sheet metal Jing engraves out groove and opens up
Flutter structure 61 to form, when engraving, remove 61 corresponding material of groove topological structure, remaining sheet metal is metal structure 6, is engraving
After carving groove topological structure 61, the metal routing 62 being included in metal structure 6 on sheet metal, is presented；In groove topological structure 61
The spacing of adjacent slot is the width of metal routing 62, and the groove width of groove topological structure 61 is equal with the width of metal routing 62, and
It is 0.15mm；Medium substrate 7 can be made up of ceramic material, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material,
Preferably, it is made up of macromolecular material, can is specifically FR-4, F4B Polymer material.
In the present embodiment, metal structure 6 is axisymmetric plane tabular.Wherein metal structure 6 is copper or ag material system
Into.Preferably copper, cheap, conducts electricity very well.In order to realize more preferable impedance matching, metal structure 6 is alternatively copper and silver-colored group
Close.
Fig. 7 is referred to, is third embodiment of the invention front view, the 3rd embodiment and second embodiment are distinguished and existed
In ground unit 8 is also included, some metallized through holes 81 on ground unit 8, are provided with；Ground unit 8 is symmetrically distributed described
5 both sides of distributing point, the selection of medium substrate 7 are same as Example 1.Fig. 8 show second embodiment and the 3rd embodiment
Metal structure enlarged drawing.It is to be understood that signal feed-in mode can have various between feeder line 4 and metal structure 6.Institute
State feeder line 4 to be directly connected with the metal structure 6；And the feeder line 4 may be located at gold with the connecting point position that is connected of metal structure 6
Optional position in category structure 6.Feeder line 4 is arranged using the end that encirclement mode is arranged at 6 periphery of the metal structure and feeder line 4
In 6 peripheral optional position of metal structure.
Characteristic of this Super-material antenna using artificial electromagnetic material, using the side that metal structure is engraved on sheet metal
Formula so that metal structure and the medium substrate depended on metal structure collectively constitute an effective dielectric constant according to Lorentz lorentz
The electromagnetic material of material resonances model dispersion, so as to design the antenna of multi-resonant frequency range.Second embodiment is implemented with the 3rd
Antenna shown in mode makes two frequency range electromagnetism wave resonances of 2.4GHz-2.49GHz and 5.72GHz-5.85GHz, metal structure 6
Long and width can do arbitrarily adjustment according to communication apparatus organization distribution, but 6 planform of metal structure keeps and second and third
Consistent in embodiment, the Super-material antenna can be used for single-frequency 2.4GHz-2.49GHz or 5.72GHz-5.85GHz frequencies
The communication apparatus of section, it is also possible to for the communication apparatus of double frequency 2.4GHz-2.49GHz and 5.72GHz-5.85GHz frequency range.
The S parameter analogous diagram of third embodiment of the invention is illustrated in figure 9, the day of the 3rd embodiment is the figure shows
Loss of the line in 2.4GHz and 5.8018GHz respectively with -15.426dB and -19.184dB, of the presently claimed invention
- 10dB losses below is respectively provided with 2.4GHz-2.49GHz and 5.72GHz-5.85GHz frequency bands, shows inventive antenna energy
It is enough individually to work in 2.4GHz-2.49GHz or 5.72GHz-5.85GHz frequency bands, it is also possible to while in 2.4GHz-
Work in 2.49GHz and 5.72GHz-5.85GHz frequency bands, and meet the requirement in sensing equipment to Super-material antenna 10.
Figure 10, Figure 11, Figure 12 and Figure 13 respectively illustrate third embodiment of the invention Super-material antenna 10 and operate in
2.4th, 2.44,2.48GHz and 5.725,5.8,5.85GHz when respectively in vertical plane (E-Plane) and horizontal plane (H-
Plane) direction far field simulation result figure, is able to observe that in here result that the polarization effect of the Super-material antenna of the present invention is not sub-
In existing antenna and meet and apply standard.
In the present invention, with regard to the processing and manufacturing of Super-material antenna 10, as long as meeting the design principle of the present invention, can adopt
Various manufactures.Most common method is the manufacture method using all kinds of printed circuit board (PCB)s (PCB), such as covers the PCB manufactures of copper
The processing request of the present invention can be met.Except this processing mode, other manufacturing process can also be introduced according to the actual needs, such as
Conductive silver paste ink processing mode, it is all kinds of can the flexible PCB processing of deformable element, the processing mode of iron plate antenna and iron plate with
The processing mode of PCB combinations.Wherein, iron plate refers to using the accurate processing of PCB complete groove topology with PCB Combined machining modes
The processing of structure, completes other slave parts with iron plate.As the copper product for adopting low cost forms the metal structure 6,
Therefore it is oxidized easily and 10 resonance frequency shift of Super-material antenna or performance is drastically declined in exposure air, therefore super material
Nonmetallic anti-oxidation film is provided with material antenna surface.As the main performance of the present invention all concentrates on 6 groove of metal structure
The design of topological structure 61, therefore, the lead of feeder line 4 affects relatively small to the radiation frequency of Super-material antenna 10.Based on this
Individual feature, Super-material antenna can be flexibly placed in any position of system, the complexity of the installation test for simplifying.
Embodiments of the invention are described above in conjunction with accompanying drawing, but be the invention is not limited in above-mentioned concrete
Embodiment, above-mentioned specific embodiment are only schematic, rather than restricted, one of ordinary skill in the art
Under the enlightenment of the present invention, in the case of without departing from present inventive concept and scope of the claimed protection, can also make a lot
Form, these are belonged within the protection of the present invention.
Claims (4)
1. a sensing equipment, including sensor, it is characterised in that also including a Super-material antenna, the Super-material antenna includes
One medium substrate and it is arranged at feeder line and the gold medal that a distributing point on one surface of the medium substrate is connected with the distributing point
Category structure；The feeder line is intercoupled with the metal structure；The Super-material antenna receives the telecommunications of the sensor output
Number, and the signal of telecommunication is converted to into electromagnetic wave signal injection；
Wherein, the Super-material antenna also includes a reference ground, and the reference ground includes two tables relative positioned at the medium substrate
The first reference ground unit and the second reference ground unit on face, the first reference ground unit are provided with first for being electrically connected to each other
Metal covering unit and the second metal covering unit, the second reference ground unit are provided with the 3rd metal covering unit and the 4th metal covering
Unit；
Wherein, the 3rd metal covering unit, the 4th metal covering unit, the feeder line, the metal structure are arranged on institute
State the same surface of medium substrate, and the 3rd metal covering unit be located at the metal structure one end and with the feeder line
Bearing of trend it is identical, the 4th metal covering unit be located at described feeder line one end side and positioned at the feeder line extension side
Upwards；
Wherein, the first metal covering unit, the second metal covering unit are arranged on the same surface of the medium substrate,
And the first metal covering unit is relative with the end position away from metal micro structure of the feeder line, the second metal covering list
It is first relative with the 3rd metal covering cell position, offer at the second metal covering unit and the 3rd metal covering unit
Some plated-through holes, the second metal covering unit are electrically connected by the plated-through hole with the 3rd metal covering unit
Connect, and some plated-through holes, first gold medal are offered at the first metal covering unit and the 4th metal covering unit
Category face unit is electrically connected by the plated-through hole with the 4th metal covering unit.
2. sensing equipment according to claim 1, it is characterised in that the metal structure is that sheet metal Jing engraves out groove and opens up
Flutter structure to form.
3. sensing equipment according to claim 1, it is characterised in that the first reference ground unit makes the one of the feeder line
End forms microstrip line.
4. the sensing equipment according to any one of claim 1-3, it is characterised in that the resonance band of the Super-material antenna
At least include 2.4GHz-2.49GHz and 5.72GHz-5.85GHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110295894.8A CN103036002B (en) | 2011-09-30 | 2011-09-30 | Sensing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110295894.8A CN103036002B (en) | 2011-09-30 | 2011-09-30 | Sensing equipment |
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| Publication Number | Publication Date |
|---|---|
| CN103036002A CN103036002A (en) | 2013-04-10 |
| CN103036002B true CN103036002B (en) | 2017-04-05 |
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| CN201110295894.8A Active CN103036002B (en) | 2011-09-30 | 2011-09-30 | Sensing equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105067133A (en) * | 2015-08-26 | 2015-11-18 | 中北大学 | Wireless high-temperature temperature sensor and manufacturing method thereof |
| CN109193156B (en) * | 2018-09-18 | 2021-02-19 | 苏州智汇云祥通信系统有限公司 | Directional diagram reconfigurable sensing antenna |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101667680A (en) * | 2009-08-31 | 2010-03-10 | 深圳市启汉科技有限公司 | Monopole radio frequency antenna |
| CN202395144U (en) * | 2011-09-30 | 2012-08-22 | 深圳光启高等理工研究院 | Sensing device |
-
2011
- 2011-09-30 CN CN201110295894.8A patent/CN103036002B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101667680A (en) * | 2009-08-31 | 2010-03-10 | 深圳市启汉科技有限公司 | Monopole radio frequency antenna |
| CN202395144U (en) * | 2011-09-30 | 2012-08-22 | 深圳光启高等理工研究院 | Sensing device |
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