CN105119052A - Radio-frequency electromagnetic wave energy collection array magic cube suitable for mobile phone and wifi - Google Patents
Radio-frequency electromagnetic wave energy collection array magic cube suitable for mobile phone and wifi Download PDFInfo
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Abstract
The invention discloses a radio-frequency electromagnetic wave energy collection array magic cube suitable for a mobile phone and wifi. Four side surfaces of an apparatus are formed by four array antenna pasters and a top surface of the apparatus is an energy recovery plate. Each array antenna paster is an annular array antenna with an air-layer dielectric layer, is formed by 2*2 annular array elements and adopts microstrip line feeding. Each array element is provided with two pairs of symmetrical C-shaped rings which is used for realizing double frequency so as to collect 1.9GHz and 2.4GHz in environment. The antenna is arranged to be the antenna with an air dielectric layer so as to reduce an integral dielectric constant of the dielectric layer and reach broadband performance. Because of the broadband, a frequency range of an accepted electromagnetic wave is wide and a lot of radio frequency energy can be collected. When the energy magic cube of the invention is in an outer open state, electromagnetic wave energy in the surrounding environment can be collected. When the energy magic cube of the invention is in an inner closed state, damages of mobile phone radiation to a human body can be shielded and mobile phone radiation energy can be collected.
Description
Technical field
The invention belongs to electromagnetic wave energy and collect field of antenna, relate to a kind of multifrequency, the design of wideband array antenna and the design of a kind of wideband match circuit and energy storage rectifier circuit.
Background technology
Along with the high speed development of electronic technology, various wireless electronic product is full of in the productive life of people.Except wireless key widely used in daily life, bluetooth earphone, mobile phone etc., at industrial circle, a large amount of wireless sensing nodes is distributed in various environment, in real time transmission of monitoring data, facilitates Industry Control and production; In some particular surroundingss, as high radiation, high temperature, high-altitude, extremely frigid zones, the inconvenient mankind directly monitor, and can complete monitoring and real-time Transmission by installing wireless senser; Especially in agriculture application, in recent years, agriculture technology of Internet of things is developed rapidly.In fields such as plantation, herding, aquaculture, processing of farm products and transports, gather the information of the agricultural objects such as soil, fish pond, plant by the wireless sensor node of its sensing layer and pass back, conveniently information being processed and decision-making.Visible, various wireless electronic product provides convenience to our life, and radio sensing network makes modern chemical industry Agriculture Production enter the new stage.But the reliable continued power problem of electronic equipment and wireless sensing node more and more becomes the focus of people's concern.For the electronic product that some are conventional, as bluetooth earphone, wireless key, Temperature Humidity Sensor etc., battery altering is more convenient; But for the sensing node of scale in Internet of Things and substantial amounts, manpower carries out battery altering will waste time and energy.Especially be operated in the electronic equipment in particular surroundings, carry out battery altering to it and not only bother but also danger, and along with the miniaturized design of radio-based electronic devices, the replacing of battery is more and more inconvenient, meanwhile, the old and useless battery of replacing, also can increase environmental pollution.Therefore, the non-maintaining novel supply power mode of development environmental protection meets the active demand that current wireless transducer is powered reliably and with long-term, simultaneously to reduction human cost, improve economic results in society there is important practical significance.
Along with the development of microelectric technique and integrated circuit (IntegratedCircuit, IC) manufacturing process, the size of chip is more and more less, and the power consumption of integrated circuit constantly reduces, and wireless sensor node power consumption has reached microwatt level.On the other hand, various energy is there is, as abundant radio frequency energy, solar energy, wind energy and vibrational energy etc., as these Energy Efficient collected and Transformation Application in surrounding environment, just can become the novel supply power mode of wireless senser, replace extra common batteries and power.In the society that current various wireless device is universal, radio-frequency electromagnetic wave energy is prevalent in our surrounding environment.Radio-frequency (RF) energy is present in the convenience and feasibility that generality in surrounding environment and radio-frequency (RF) energy collect, and makes its application in low-power consumption self-contained electric system have bright prospects.In recent years, the radio-frequency (RF) energy collection technique based on wireless energy transfer theory was applied to the electronic equipment of low-power consumption more and more, as the electronic equipment of the low-power consumption such as wireless sensor network, electromedical equipment, RFID.Radio-frequency (RF) energy is collected and is realized mainly through the module such as RECTIFYING ANTENNA, energy management.Wherein, RECTIFYING ANTENNA part is the most key.And about in the research of RECTIFYING ANTENNA, microstrip antenna because it is lightweight, cost is low, volume is little, structure is simple, conveniently to make and Systematic Design, be easy to the advantages such as batch production and more and more paid close attention to.Therefore high-performance microstrip antenna research & design to RECTIFYING ANTENNA so that the research of radio-frequency (RF) energy gathering system significant.
Summary of the invention
The object of the present invention is to provide the radio-frequency (RF) energy gathering-device of a kind of mobile phone and wifi.Be mainly used in the power supply of the low power dissipation electron such as radio sensing network, RFID equipment, to break away from the constraint of battery, reduce costs, reduce volume, be easy to carry, large-scale application can be suitable for.
Technical scheme of the present invention is: a kind of radio frequency electromagnetic collection of energy array magic square being applicable to mobile phone and wifi, and four sides of this device are surrounded by four array antenna pasters, and the end face of device is energy regenerating plate; Described four array antenna pasters can form an outer open energy magic square outwardly when placing, for collecting the radio-frequency (RF) energy in surrounding environment; The energy magic square of an inside enclosed can be formed inwardly, for collecting the radio-frequency (RF) energy in closed area when four array antenna pasters are placed;
Described array antenna paster comprises two-layer first medium, separate with second medium between described two-layer first medium, one side surface of described ground floor first medium posts the array element of the array antenna that four are made up of annular sheet metal, the array element of described array antenna cuts out two pairs of C type rings, described two pairs of C type ring arc ports are relative between two, be respectively first pair of C type ring, second pair of C type ring, described first pair of C type ring wraps up second pair of C type ring, and the center of two pairs of C type ring arc notch spatially mutual deviation 90 degree, the input port of the array element of described four array antennas connects with metal interconnecting wires, the center output of described metal interconnecting wires is connected with the feeder line of array antenna, the feeder line of described array antenna exports and is connected with SMA interface, one side surface metal clad thin slice of described second layer first medium, and this sheet metal is as ground plate,
Four limits of described energy regenerating plate place base plate are all pasted with energy management circuit, the input of energy management circuit is connected with SMA interface, the output of energy management circuit is all connected with the center output port of energy regenerating plate, and the center output port of energy regenerating plate is connected with load.
Further, described sheet metal is copper sheet, and thickness is 0.018mm.
Further, the width of described metal interconnecting wires is 2mm, and the width of the feeder line of described array antenna is 4mm, and the material of the feeder line of described metal interconnecting wires and array antenna is copper.
Further, described first medium is FR4 plate, and thickness is 1.6mm; Described second medium is air layer, and thickness is 7mm.
Further, the array element of described array antenna is copper sheet, the minimum distance at the thoughtful first medium edge of cylindrical of the array element of array antenna is 24.7mm, the radius of described first pair of C type ring is 15mm, the radius of described second pair of C type ring is 12mm, the minimum distance of the breach of described first pair of C type ring is 4mm, and the minimum distance of the breach of described second pair of C type ring is 6mm, and the thickness of described two pairs of C type rings is 1mm.
Further, four corner plastics screws of described two-layer first medium are fixed, and can bond together between described four array antenna pasters.
Technique effect of the present invention is:
1) be with the perimeter array antenna of air dielectric layer to realize double frequency, can collect the radio frequency energy of 1.9GHz and 2.4GHz, namely this antenna can collect the radio-frequency (RF) energy of mobile phone in environment and wifi simultaneously.Wideband carried out by this antenna simultaneously, makes collectable electromagnetic wave frequency range wider, and this antenna is arranged to array antenna and more can be collected radio-frequency (RF) energy.
2) match circuit of the base plate of this device achieves the coupling on wideband, and whole floor can reach the effect of energy integration.Simultaneously magic square of the present invention can have two kinds of forms, outer open form and inside enclosed form, when energy magic square of the present invention be in outer open time, the electromagnetic wave energy in surrounding environment can be collected.When energy magic square of the present invention is in inside enclosed, not only can shields the injury of mobile phone radiation to human body, and the emittance of mobile phone can be collected.
Accompanying drawing explanation
Fig. 1 is the structural representation of array antenna paster of the present invention;
Fig. 2 is the vertical view of array antenna paster in the present invention;
Fig. 3 is array antenna paster of the present invention energy magic square schematic diagram outwardly;
Fig. 4 is array antenna paster of the present invention energy magic square schematic diagram inwardly.
In figure: 1 is first medium; 2 is that air is as second medium; 3 is the array element of array antenna; 4 is first pair of C type ring; 5 is second pair of C type ring; 6 is the feeder line of array antenna; 7 is ground plate; 8 is SMA interface; 9 is base plate.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, except as otherwise noted the implication of " multiple " is two or more.
As shown in Fig. 3 (or Fig. 4), the radio-frequency (RF) energy gathering-device of a kind of mobile phone and wifi, this device is magic cube structure, and four sides of device are surrounded by four array antenna pasters, and the end face of device is energy regenerating plate.Four limits of described energy regenerating plate place base plate 9 are all pasted with energy management circuit, the input of energy management circuit is connected with SMA interface 8, the output of energy management circuit is all connected with the center output port of energy regenerating plate, and the center output port of energy regenerating plate is connected with load.
As shown in Figure 1-2, described array antenna paster comprises two-layer first medium 1, separate with second medium 2 between described two-layer first medium 1, the upper surface of described top layer first medium 1 posts the array element 3 of the array antenna that four are made up of annular sheet metal, the array element 3 of described array antenna is scratched and removes two pairs of C type rings, described two pairs of C type ring arc ports are relative between two, be respectively first pair of C type ring 4, second pair of C type ring 5, described first pair of C type ring 4 wraps up second pair of C type ring 5, and the center of two pairs of C type ring arc notch spatially mutual deviation 90 degree, the input port of the array element 3 of described four array antennas connects with metal interconnecting wires, the center output of described metal interconnecting wires is connected with the feeder line 6 of array antenna, the feeder line 6 of described array antenna exports and is connected with SMA interface 8, the lower surface of described second layer first medium 1 posts layer of metal thin slice, and this sheet metal is as ground plate 7.
Four corner plastics screws of described two-layer first medium 1 are fixed, and can bond together between described four array antenna pasters.
As shown in Figure 3-4, the present invention is the radio-frequency (RF) energy gathering-device of a kind of mobile phone and wifi.This device is made up of two parts, and bottom is four duplicate perimeter array antenna pasters with air dielectric layer, for collecting mobile phone signal radio frequency energy and WiFi radio frequency energy.Top is an energy regenerating plate, the base plate 9 of energy regenerating plate is provided with four energy management circuit, this energy management circuit comprises π type impedance matching circuit and energy storage rectifier circuit (common two voltage doubling rectifying circuit), described π type impedance matching circuit is connected with energy storage rectifier circuit, first rectification after coupling, then direct current is stored in inside an electric capacity, radio frequency for being collected by antenna can be converted into direct current energy and store, and then powering load, the effect of an energy integration can be played simultaneously.
In the present embodiment, the array antenna paster with the air layer medium of second medium 2 is made up of the array element 3 of 2*2 perimeter array antenna, adopts feeder line 6 feed of array antenna.The object of the air layer of second medium 2 is the effects in order to reach wideband.The design of two pairs of symmetrical C type rings is the objects in order to reach double frequency.1.9GHz and 2.45GHz is worked in respectively in order to make two antennas, we adopt the HFSS simulation software of ANSYS company to be optimized design, thus obtaining the physical size that best electromagnetic wave energy collects antenna: above-mentioned sheet metal is copper sheet, and thickness is 0.018mm; The width of described metal interconnecting wires is 2mm, and the width of the feeder line 6 of described array antenna is 4mm, and the material of the feeder line 6 of described metal interconnecting wires and array antenna is copper; Described first medium is FR4 plate, and thickness is 1.6mm; Described second medium 2 is air layer, and thickness is 7mm; The array element 3 of described array antenna is copper sheet, the minimum distance at its cylindrical thoughtful first medium 1 edge is 24.7mm, the radius of described first pair of C type ring 4 is 15mm, the radius of described second pair of C type ring 5 is 12mm, the minimum distance of the breach of described first pair of C type ring 4 is 4mm, the minimum distance of the breach of described second pair of C type ring 5 is 6mm, and the thickness of described two pairs of C type rings is 1mm.
In addition, by staggered relatively inwardly for two array antenna pasters, energy management circuit is produced on the back side of antenna, can significantly minification, forms portable radio frequency electromagnetic energy collecting device.
Generally speaking the superiority of apparatus of the present invention is: the perimeter array antenna of band air dielectric layer can realize double frequency, can collect the radio frequency energy of 1.9GHz and 2.4GHz, and namely this antenna can collect the radio-frequency (RF) energy of mobile phone in environment and wifi simultaneously.Wideband carried out by this antenna simultaneously, makes collectable electromagnetic wave frequency range wider, and this antenna is arranged to array antenna and more can be collected radio-frequency (RF) energy.The match circuit on the floor of this device achieves the coupling on wideband, and whole floor can reach the effect of energy integration.
The course of work of the present invention is as follows:
Overall structure of the present invention is made up of four duplicate perimeter array antenna pasters with air dielectric layer and an energy regenerating plate.Perimeter array antenna paster with air layer dielectric layer is made up of 2*2 annular array unit, adopts feed microstrip line.In order to make two antennas work in 1.9GHz and 2.45GHz respectively, we adopt the HFSS simulation software of ANSYS company to be optimized design.Four limits of described energy regenerating plate place base plate 9 are all pasted with energy management circuit, each array antenna paster with air dielectric layer is connected by SMA interface with energy management circuit, thus the radio-frequency (RF) energy that this array antenna can be made to collect passes through match circuit, become direct current energy after rectification circuit to store, powering load after the energy integration of four circuit storage, whole base plate 9 can reach the effect of energy integration.The match circuit of this device is π type impedance matching circuit, can realize coupling, thus the radio-frequency (RF) energy that antenna can be made to collect arrives rectification circuit more in wideband.When four array antenna pasters outwardly time can form an outer open energy magic square, can be used for collecting the radio-frequency (RF) energy in surrounding environment.When four array antenna pasters inwardly time can form the energy magic square of an inside enclosed, mobile phone is put into the inside of this inside enclosed magic square, and the radiation minimizing mobile phone radiation of this energy magic square maskable mobile phone is to the injury of human body and the electromagnetic wave Collection utilization of mobile phone radiation can be got up.
Above to the radio-frequency (RF) energy gathering-device of a kind of mobile phone provided by the present invention and wifi and to this has been detailed introduction, apply specific case herein to set forth principle of the present invention and execution mode, be noted that, the foregoing is only preferred embodiment of the present invention, not in order to limit the present invention.All any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. be applicable to a radio frequency electromagnetic collection of energy array magic square of mobile phone and wifi, it is characterized in that, four sides of this device are surrounded by four array antenna pasters, and the end face of device is energy regenerating plate; Described four array antenna pasters can form an outer open energy magic square outwardly when placing, for collecting the radio-frequency (RF) energy in surrounding environment; The energy magic square of an inside enclosed can be formed inwardly, for collecting the radio-frequency (RF) energy in closed area when four array antenna pasters are placed;
Described array antenna paster comprises two-layer first medium (1), separate with second medium (2) between described two-layer first medium (1), one side surface of described ground floor first medium (1) posts the array element (3) of the array antenna that four are made up of annular sheet metal, the array element (3) of described array antenna cuts out two pairs of C type rings, described two pairs of C type ring arc ports are relative between two, be respectively first pair of C type ring (4), second pair of C type ring (5), described first pair of C type ring (4) parcel second pair of C type ring (5), and the center of two pairs of C type ring arc notch spatially mutual deviation 90 degree, the input port of the array element (3) of described four array antennas connects with metal interconnecting wires, the center output of described metal interconnecting wires is connected with the feeder line (6) of array antenna, the feeder line (6) of described array antenna exports and is connected with SMA interface (8), one side surface metal clad thin slice of described second layer first medium (1), and this sheet metal is as ground plate,
Four limits of described energy regenerating plate place base plate (9) are all pasted with energy management circuit, the input of energy management circuit is connected with SMA interface (8), the output of energy management circuit is all connected with the center output port of energy regenerating plate, and the center output port of energy regenerating plate is connected with load.
2. the radio frequency electromagnetic collection of energy array magic square being applicable to mobile phone and wifi according to claim 1, it is characterized in that, described sheet metal is copper sheet, and thickness is 0.018mm.
3. the radio frequency electromagnetic collection of energy array magic square being applicable to mobile phone and wifi according to claim 1, it is characterized in that, the width of described metal interconnecting wires is 2mm, the width of the feeder line (6) of described array antenna is 4mm, and the material of the feeder line (6) of described metal interconnecting wires and array antenna is copper.
4. the radio frequency electromagnetic collection of energy array magic square being applicable to mobile phone and wifi according to claim 1, it is characterized in that, described first medium (1) is FR4 plate, and thickness is 1.6mm; Described second medium (2) is air layer, and thickness is 7mm.
5. the radio frequency electromagnetic collection of energy array magic square being applicable to mobile phone and wifi according to claim 1, it is characterized in that, the array element (3) of described array antenna is copper sheet, the minimum distance at the thoughtful first medium of cylindrical (1) edge of the array element (3) of array antenna is 24.7mm, the radius of described first pair of C type ring (4) is 15mm, the radius of described second pair of C type ring (5) is 12mm, the minimum distance of the breach of described first pair of C type ring (4) is 4mm, the minimum distance of the breach of described second pair of C type ring (5) is 6mm, the thickness of described two pairs of C type rings is 1mm.
6. the radio frequency electromagnetic collection of energy array magic square being applicable to mobile phone and wifi according to claim 1, it is characterized in that, four corner plastics screws of described two-layer first medium (1) are fixed, and can bond together between described four array antenna pasters.
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| CN113437509A (en) * | 2021-08-25 | 2021-09-24 | 深圳大学 | Super-high frequency RFID (radio frequency identification) plane near-field antenna capable of stably covering |
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Cited By (8)
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| CN113437509A (en) * | 2021-08-25 | 2021-09-24 | 深圳大学 | Super-high frequency RFID (radio frequency identification) plane near-field antenna capable of stably covering |
| CN113437509B (en) * | 2021-08-25 | 2021-11-02 | 深圳大学 | Super-high frequency RFID (radio frequency identification) plane near-field antenna capable of stably covering |
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