74results about How to "Wide frequency coverage" patented technology

The present invention relates to a broadband radar target simulation method and system, characterized in that: the received radar radiation signal enters the broadband down-converter of the simulation system through an attenuator and a low-noise amplifier to perform conversion from radio frequency to intermediate frequency, and the down-conversion output IF 70MHz band-pass signal, 70MHz IF modulation signal is low-pass filtered and then band-pass samples the input analog modulation signal, and the output digital data is digitally down-converted in the FPGA, demodulated to the digital baseband signal and delayed; the delayed The data is output to the IQ data processing circuit of the FPGA, and finally the target simulation in the microwave frequency band is radiated to the radar through the signal output by the DAC. The invention adopts space coherent reception, which can fully meet the requirements of radar far-field testing.

The invention discloses an ultra-wideband high-bandwidth radio frequency two-way transceiving integrated integration module, belonging to the technical field of wireless information transmission. Themodule comprises a main control unit, a power supply unit, a microwave frequency synthesis unit, a radio frequency transmission unit, a radio frequency receiving unit, a digital signal processing unitand a radio frequency transceiving control unit, wherein the main control unit is mainly used to complete bus driving, data interaction, signal processing and other functions; the power supply unit is used to provide a high-stability and low-noise power supply; the microwave frequency synthesis unit, the radio frequency transmission unit, the radio frequency receiving unit and the digital signalprocessing unit adopt a microwave frequency synthesis technology, a wideband frequency conversion technology, a signal conditioning technology, a wideband modulation and demodulation technology and adigital signal processing technology to achieve the maximum one-way 8*8 or two-way 4*4 radio frequency transceiving; and the radio frequency transceiving control unit is used to achieve radio frequency transceiving control. The radio frequency two-way transceiving integrated integration module disclosed by the invention is easy to integrate, can be expanded, and can meet the requirements of large-scale MIMO radio frequency multi-channel transceiving.

The invention relates to an LABVIEW-based variable frequency water treatment control system, comprising a software control part and variable frequency water treatment control equipment, wherein the software control part comprises the LABVIEW procedure and the single chip procedure of a computer; the variable frequency water treatment control equipment comprises a computer software control platform, a serial interface module, a single chip, a DDS module, a power amplification module, a power module and a water treater. The frequency of the control equipment of the system can change between 1Hz and 1MHz without steps and the output power can be adjusted between 0W and 400W without steps. The system can meet various water treatment requirements such as sterilization, scale prevention and removal, corrosion prevention, etc. The control system has the advantages of convenient software operation, strong control function, excellent equipment performance, safe and reliable use and high applicability, can be widely applied to the fields such as central heating, air-conditioners, hot water boilers, industrial water treatment, water purification and the like and serves as an effective tool for studying the variable frequency water treatment technology.

An array of pressure sensors and motions sensors is contained in a layered material system that includes an acoustically compliant layer and an acoustically transparent layer. The compliant layer (which vibrates in accordance with acoustical influence thereupon) is the foundation for both sensor types and is the vibratory medium for motion sensing. The transparent layer is the matrix for both sensor types and is the window permitting sound waves to reach the pressure sensors (which sense pressure of the sound waves) and the compliant layer (the vibration of which is sensed by the motion sensors). The compliant layer's exposed surface can be attached to a structure's exterior for passive sonar detection purposes. Since the pressure sensors are effective primarily for low frequency sound waves, and the motion sensors are effective primarily for high frequency sound waves, the invention is aggregately effective for a broad band spanning low and high frequencies.

The invention provides an ultra-wideband high-gain antenna based on a radial disk impedance converter. According to the ultra-wideband high-gain antenna, the radial disk technology is introduced into the ultra-wideband antenna design for the first time, the design of the radial disk impedance converter is added to a feeding position of the antenna, the ultra-wideband operation problem of different transmission line converters in a feeding system can be solved, and the effect that an antenna radiator can achieve effective conversion and directed radiation of electromagnetic energy under the condition of wideband feeding can be guaranteed. Meanwhile, a ridge waveguide structure with electric field and magnetic field centralizing effects is adopted, and two side surfaces of a ridge waveguide cavity used for energy exchange adopt a triangular ridge structure with an ultra-wideband property, thereby guaranteeing the effect that electromagnetic waves of different frequencies have well matched electromagnetic energy conversion cavities. The ultra-wideband high-gain antenna based on the radial disk impedance converter adopts the large-diameter gradually changing and ridge directional horn radiator design technologies, can achieve high gain and directed radiation of the antenna within ultra-wideband, and can control polarization characteristic and directional diagram sidelobes of the antenna.

The invention discloses a series-type seismic signal optimization time frequency transformation method, which relates to an oil exploration data processing and interpretation technology. Complete set empirical mode decomposition is used for decomposing an original seismic trace x(t) to a plurality of different bands of intrinsic mode function (IMF) signal components, each signal component serves as a new input signal imf(t), an energy optimization criterion objective function is then used for solving the optimal frequency domain window parameter, an optimization time frequency distribution calculation formula is used for sequentially solving the time frequency distribution TFR(t, f) for each newly-inputted signal, and finally, the obtained time frequency distribution is overlapped to obtain a seismic signal time frequency spectrum TFR(t, f) with the time frequency resolution improved obviously. The technology makes full use of effective information of seismic exploration data, the time frequency resolution is high, the calculation speed can be improved exponentially, the information utilization rate in the seismic exploration data is improved, and the seismic data interpretation reliability is also improved.

The invention provides a broadband signal generator. The broadband signal generator is characterized by comprising a communication control module, an intermediate frequency processing module, an up and down frequency conversion module and a local oscillator module. The intermediate frequency processing module modulates various modes of modulating signals into central frequency and sends the signals to the first frequency conversion branch and the second frequency conversion branch, and then the signals are output at two frequency bands of 30-560 MHz and 560-1000 MHz after being frequency-converted twice by the local oscillator module. The broadband signal generator overcomes the problems of poor frequency accuracy, narrow frequency range, low reaction speed, less function and the like in the prior art and meanwhile improves the production efficiency and facilitates batch production.

The invention discloses a high-isolation three-frequency four-unit MIMO antenna. The high-isolation three-frequency four-unit MIMO antenna comprises a dielectric substrate, four antenna radiation units, four coaxial feeding head, a grounding plate, two intermediate slot Y-shaped branches and four rectangular floor gaps, wherein each antenna radiation unit employs a design of two antenna radiationsegment structures and comprises a first antenna radiation segment and a second antenna radiation segment, the first antenna radiation segment is in an inverted N-shaped bending line shape, the secondantenna radiation segment is in an L-shaped bending line shape, and the four antenna units are respectively placed at four corners of the dielectric substrate and are arranged in a back-to-back way.The working frequencies of the MIMO antenna are 2.5GHz, 3.5GHz and 5.8GHz, and the MIMO antenna can be applied to WLAN (2.4GHz and 5.8GHz) and 5G (3.5GHz) communication; moreover, the antenna has highisolation degree, and isolation degree exceeding 15dB is obtained among the antenna units within a frequency band higher than 2.4GHz; and the MIMO antenna is relatively small in integral size, wide in wideband and low in manufacturing cost and is simple to design, and mass production and processing are easy.

A multi-band remote oriented loud acoustic system is composed of a signal input device, a low pass filter 1, an A / D converter 1, an omnidirectional microphone, a low pass filter 2, an A / D converter 2, a digital signal processor and acoustic emission channels. The acoustic emission channel is composed of a power amplifier, a match circuit and a transducer unit. A plurality of acoustic emission channels simultaneously exist in the system and are respectively corresponding to different frequency bands. According to the system, automatic acoustic sample selection can be realized according to objects in the outside world, and oriented loud acoustic signals can be emitted simultaneously through the acoustic emission channels of different frequency bands. Thus, the system can have effects on a plurality of objects simultaneously.

The invention discloses a ridge waveguide microstrip probe eight-way power combining / power dividing network, comprising a planar microstrip probe printed board, a first box body, a second box body andan intermediate cover board. The planar microstrip probe printed board divides one signal power into two paths or synthesizes two signals into one signal. A first metal groove of the first box body,a second metal groove of the second box body and a metal through groove of the intermediate cover plate form an input / output port of a ridge waveguide cavity and a double ridge waveguide; A ridge waveguide cavity and an intermediate cover plate convert the double-ridge waveguide into two single-ridge waveguides, and two planar microstrip probe printed boards are respectively fixed at the ends of the two single-ridge waveguides; Four planar microstrip probe printed boards are provided with signal input / output ports, and signals are coupled to the planar microstrip probe printed boards through the microstrip probes. The eight-way power combining sub-network of the invention has small volume, wide coverage frequency band, simple form, small size and wide coverage frequency band of the planarmicrostrip probe printed board, and can be applied to various waveguide synthesis / power sub-network.

The invention discloses a marine ship positioning and recognizing method based on radio signal processing and relates to the technical field of marine radio. Radio direction-finding and an AIS are combined together to position ship condition and recognition information, an interactive multi-model is applied to calculate and predict ship sailing direction and ship position, and a ship can be prewarned and called when it is predicted that the ship position may intrude a warning area or may be on a typhoon path.

The invention discloses a dual-circular-polarization phased-array antenna array, belonging to the technical field of antennas. The phased-array antenna array comprises a plurality of phased-array antenna array elements. Each phased-array antenna array element comprises a radiation unit with a microstrip patch, a dual-circular-polarization feed network, a capacitive loading unit and an AMC reflection floor, wherein the radiation unit comprises an upper dipole and a lower dipole, the two dipoles are distributed in a crisscross manner, the radiation arms of the dipoles are ellipses with gradual change structures, capacitive loading units are arranged at the tail ends of the radiation arms of the dipoles, the radiation unit is arranged right above the AMC reflection floor, the dual-circular-polarization feed network is a four-feed-point network, provides 90-degree or 270-degree phase difference feed for two adjacent radiation arms, and can realize left-hand circular polarization and right-hand circular polarization, the dual-circular polarization feed network comprises a bridge combination unit, and the bridge combination unit adopts a GaAs technology. According to the invention, the ultra-wideband low-profile dual-circular-polarization phased-array antenna array is realized.

The invention discloses an array antenna, which comprises a reflecting plate and multiple radiation units, wherein the multiple radiation units are fixed on the reflecting plate; each radiation unit comprises a base and a radiator for forming single polarization or dual polarization; and the radiator comprises a supporting column fixed on the base and a radiation arm fixed on the supporting column. The structure of the reflecting plate is improved, in a condition of the same size, the horizontal pattern of the antenna can be optimized, radiation current paths can be increased, the lobe width and the front-to-back ratio of the antenna array can be effectively optimized, the gains of the antenna can be effectively improved, the structure of the radiation unit is optimized, the frequency coverage range is wide, a frequency band of 1710 to 2690 MHz can be effectively covered, and while the working frequency band is widened, the size is reduced and the cost is reduced.

The invention discloses a power distribution and combination machine based on an ultra wide band coaxial impedance transformer. The power combination machine comprises a one-to-four coaxial impedance transformer, outputs of the one-to-four coaxial impedance transformer are a first output circuit and a second output circuit, the first output circuit and the second output circuit are each connected with a one-to-one coaxial impedance transformer, the one-to-four coaxial impedance transformer is connected with the one-to-one coaxial impedance transformers in series, and power distribution of four circuits is achieved; after the power distribution is carried out on the four circuits, each circuit is connected to a coaxial line coaxial balun with an alpha characteristic impedance, each coaxial balun is connected with a push-pull amplifier, and combination of four stages of push-pull output power is achieved; or after the power distribution is carried out on the four circuits, the circuits are connected to coaxial line coaxial baluns Z1 which are matched with output impedance of the one-to-one coaxial impedance transformers and have the same characteristic impedance; each coaxial balun Z1 is distributed into two circuits of constant amplitude inversion signals by the power distribution; each circuit of each coaxial balun Z1 is distributed into two circuits, and finally combined output is carried out through coaxial baluns Z2 which has the same structure with the coaxial baluns Z1.

The invention provides a preparation method and application of a composite wave absorbing material of graphene and zeolite. The preparation method comprises the following steps: a, taking sodium hydroxide, dissolving to form a NaOH solution, dividing the NaOH solution into two parts, adding sodium metaaluminate in one part of the NaOH solution, stirring until the solution is clear, adding the graphene, and dispersing ultrasonically to obtain a solution A; b, adding sodium metasilicate in the other part of NaOH solution, stirring until the solution is clear, adding the graphene, and dispersing ultrasonically to obtain a solution B; c, adding the solution B in the solution A, stirring evenly, sealing and ageing, placing in a freezer dryer and carrying out freeze-drying to obtain the composite wave absorbing material of the graphene and the zeolite, wherein the molar ratio of the sodium metasilicate, the sodium metaaluminate and the sodium hydroxide is 1.24:1:3.66, and the mass ratio of the total graphene added in the step a and the step b to the sodium hydroxide is 0.05-2.0:10. The reflection loss of the material prepared by the invention can reach -53 dB, the frequency coverage area is wide, the wave absorbing property is good, the density is low, the content of the graphene is small, the cost of raw materials is low, and industrial production is convenient to realize.

The invention relates to a device for attaining the correct parameter of receiver, which comprises a receiver, a background computer and a noise resource. Wherein, one end of said noise source is connected to the input port of analogue channel of receiver, while another end is connected to the control unit of receiver to control the noise source; the background computer is connected to the control unit to send the correct request information of noise source while said information comprises the excess noise ratio information of noise source and the correct range of receiver. The invention also provides relative method which comprises: the background sends the correct request information of noise source to the receiver; the receiver controls the noise source and measures the correct parameter of receiver according to said correct request information. The invention uses the general noise source, to reduce the cost, improve the test accuracy and enlarge the test range.

The invention relates to a neuron coding circuit, belonging to the technical field of integrated circuits. In the neuron coding circuit, the analog voltage signal output by the traditional neural network is filtered and processed by a signal acquisition module to output a stable control voltage signal; The control voltage signal and the current signal outputted from the sensitivity adjusting unitare input to a frequency encoder, and after quantized and encoded by the frequency encoder, an analog signal with sigmoid function relationship between the frequency and the control voltage signal isoutputted. The pulse width regulator receives the analog signal and the pulse width control signal output from the frequency encoder, and outputs the pulse signal whose frequency is the same as the analog signal and whose pulse width is positively related to the pulse width control signal. The pulse emitting module receives the pulse signal from the pulse width regulator and transmits the pulse signal to the pulse neural network when the signal Ready emitted from the membrane potential detecting module is enabled. The neuron coding circuit of the invention has the advantages of simple circuitstructure, wide frequency coverage range, low power consumption and the like.

The invention discloses a broadband base station oscillator antenna and a base station antenna, the broadband base station oscillator antenna comprises a bottom plate, a substrate and two pairs of support plate groups arranged at an included angle, each support plate group comprises two vertical support plates arranged at an interval, the substrate is located above the bottom plate, and the vertical support plates are connected with the bottom plate and the substrate; two pairs of antenna units forming an included angle of 90 degrees are arranged on the top surface of the substrate, each pairof antenna units comprises two antenna subunits, each antenna subunit comprises an outer ring and an inner ring, and the inner ring is positioned in the outer ring and is connected with the outer ring; each support plate group is provided with an inverted-hook-shaped microstrip line feed balun, and the microstrip line feed balun is coupled with the corresponding antenna unit for feeding. The broadband base station oscillator antenna and the base station antenna are wide in coverage frequency band and excellent in performance, have the advantages of planarization, multimode resonance, stable gain and the like, and are simple in structure, convenient to manufacture and low in production cost.

The invention discloses a coating process for a radio frequency circuit and the radio frequency circuit coated by the coating process. The coating process comprises the following steps of S1, selecting PCB protective agent as a coating material; S2, cleaning the radio frequency circuit; S3, drying and cooling the radio frequency circuit to the normal temperature; and S4, coating the radio frequency circuit for multiple times, namely coating the radio frequency circuit with a PCB protective agent by adopting a three-proofing coating appliance, putting the coated radio frequency circuit into a high-temperature box of 80-90 DEG C, baking for 0.5-1 hour, cooling to normal temperature, and repeating the process for multiple times. The coating process is advantaged in that the novel PCB protective agent is applied to the radio-frequency circuit, has remarkable effects of improving the voltage endurance capability of the high-power radio-frequency circuit and improving environmental adaptability of the radio-frequency circuit, and the coating process has very high practical value.

The invention discloses a data transmission method, a feedback information transmission method and related equipment, which are used for providing a solution for transmitting data on an unlicensed frequency band in an LTE system. The data transmission method comprises the steps that: terminal equipment determines a starting time of a system wireless sub-frame on the basis of a signal / information sent by network equipment; the terminal equipment receives downlink control information according to a system wireless sub-frame n+1 starting time, wherein n is a serial number of the system wireless sub-frame; the terminal equipment determines a starting time of a service sub-frame m in the system wireless sub-frame n according to the downlink control information, wherein m is a serial number of the service sub-frame, the starting time of the service sub-frame m is different from the starting time of the system wireless sub-frame n, and the length of the service sub-frame equals the length of the system wireless sub-frame; and the terminal equipment receives service data during the service sub-frame m.

The invention discloses a 5G millimeter wave antenna module and a mobile terminal. The antenna module comprises a support, wherein the support is provided with at least two antenna units, the antennaunit comprises a radiation main body, the radiation main body is provided with a main slot, the periphery of the main slot is provided with at least two branch slots, each branch slot comprises a first branch and a second branch, one end of the first branch is communicated with the middle part of the second branch, and the other end of the first branch is communicated with the main slot. The antenna unit can work in the frequency band ranges of n257 (26.5GHz to 29.5GHz), n258 (24.25GHz to 27.25GHz) and n261 (27.5GHz to 28.35GHz) by arranging the main slot and the branch slots on the radiationmain body, so that the coverage frequency band is wide; the antenna unit is simple in structure and low in test difficulty and beam management complexity; and the antenna unit occupies a small space and is suitable for mobile terminals such as mobile phones.

The invention discloses a 5G millimeter wave ultra-wideband dipole antenna unit and a packaged antenna module. The 5G millimeter wave ultra-wideband dipole antenna unit comprises a first dielectric layer, a balun which is arranged on the top surface of the first dielectric layer, and a first metal layer which is arranged on the bottom surface of the first dielectric layer; the first metal layer comprises a ground layer, a gap and a dipole, the gap is arranged on the ground layer and is coupled with the balun, the dipole is connected with a first side edge of the ground layer and is coupled with the gap, and the first dielectric layer is provided with a first plated-through hole used for feeding the balun. The n257 (26.5 GHz to 29.5 GHz), the n260 (37 GHz to 40 GHz) and the n261 (27.5 GHz to 28.35 GHz) can be effectively covered, and the coverage frequency band is wide; the antenna is small in overall size, can be based on a PCB, is more convenient for subsequent integration with a chip, and is especially suitable for hand-held equipment of a 5G millimeter wave communication system; and the design difficulty, the test difficulty and the beam management complexity are effectively simplified.

The invention discloses a multi-source multi-channel complex electromagnetic environment simulation generation method. The method comprises the following steps: step 1, adjusting a main beam of a transmitting antenna to point to a key part of tested equipment; step 2, constructing an electromagnetic environment physical simulation system which comprises an ultra-wideband electromagnetic signal transmitting unit, a complex electromagnetic environment simulation device, a wideband up-converter, an ultra-wideband data recording and playback unit, a power amplifier, a directional coupler, a power meter, a test antenna and a switch; and step 3, real-time monitoring of complex electromagnetic environment generation: reading the coupling end power of the physical simulation channel by adopting a method of connecting a coupler to the output end of a power amplifier, and monitoring the electromagnetic environment generation of each channel. The frequency coverage range is wide, and the signal simulation types are diversified; software drives a plurality of radiation sources to efficiently and automatically realize simulation generation of a complex electromagnetic environment; and the built electromagnetic environment data can be obtained in real time, and system error introduction is controlled.

The invention discloses an electromagnetic pulse protector. The electromagnetic pulse protector comprises a low frequency protection unit and a medium-high frequency protection unit connected to an output end of the low frequency protection unit. The low frequency protection unit comprises a lightning arrester, a time delay inductor and a piezoresistor. The time delay inductor prolongs the electromagnetic pulse action time. The lightning arrester and the piezoresistor absorb electromagnetic pulse low frequency energy. The medium-high frequency protection unit comprises an LC resonance circuit, a filtering inductor and a feedthrough filter. The LC resonance circuit absorbs electromagnetic pulse medium frequency energy. The filtering inductor absorbs electromagnetic pulse medium-high frequency energy. The feedthrough filter absorbs electromagnetic pulse high frequency energy. Compared with the prior art, the modes of time delaying, filtering absorption, resonance bypasses and radio frequency shielding are adopted, so that an electromagnetic pulse current is attenuated to the normal work rang of a protected device; in addition, the functions of a lightning-protection and electromagnetic compatibility filter integrated, so that the miniaturization and integration of the device are realized.

The invention belongs to the field of electromagnetic wave absorption, and discloses a heteroatom-doped woody plant-based electromagnetic wave absorption material and a preparation method thereof. Heterogeneous elements are doped into a natural pore channel structure of a woody plant-based material in situ by utilizing technical means such as high-temperature cracking and the like, and meanwhile,the high-performance electromagnetic wave absorption material with a three-dimensional straight-through hole structure is constructed by utilizing the natural structure; the woody plants are any one of bamboos, hardwoods and softwood; the heteroatoms are one or more of B, N, O, S, P and the like. The heteroatom-doped woody plant-based electromagnetic wave absorption material has the advantages oflow price, good electromagnetic wave absorption performance, wide coverage frequency, wide raw material sources, environmental friendliness, simple manufacturing process, controllable process and thelike.

The invention relates to a dual-frequency dual-polarization elevator antenna, which comprises a reflection plate and a radiation unit. The dual-frequency dual-polarization elevator antenna is characterized in that high-frequency oscillators are arranged on the reflection plate in a rectangular array structure; each low-frequency oscillator is in a bowl structure; the low-frequency oscillators are arranged on the reflection plate at the places of the high-frequency oscillators at the four corners of the high-frequency oscillators in the rectangular array; and the high-frequency oscillators at the four corners of the high-frequency oscillators in the rectangular array are coaxially arranged in the bowl-shaped low-frequency oscillators respectively. Through combination of reasonable sizes, the performance of the antenna is improved, and the formed dual-frequency dual-polarization elevator antenna is high in performance, and has the advantages of wide coverage band and high anti-interference capability and the like; and the radiation unit adopts the bowl-shaped low-frequency oscillators, and separator plates are arranged between corresponding radiation units to ensure isolation, horizontal radiation width thereof reaching 90+ / -8 degrees, so that the unit is high in efficiency and simple in structure, and base station coverage range is large.

The invention provides a nonlinear transmission wire breeze vibration protection device; the nonlinear transmission wire breeze vibration protection device is hung on a power transmission wire and ischaracterized in that the device comprises a sealing device and an electromagnetic damping device (2); the sealing device is of a hollow closed structure and is wrapped outside the electromagnetic damping device (2), so that the interference of the inner magnetic field and the outer magnetic field is prevented; the electromagnetic damping device (2) comprises a horizontal guide pipe (7) and a plurality of crossed guide pipes, and a certain included angle is formed among the crossed guide pipes, and the crossed guide pipes are fixed on the horizontal guide pipe (7) separately. According to thedevice, nonlinear electromagnetic damping can be generated in the vibration of the transmission wire, energy consumption is increased, meanwhile, the applicable vibration range is wider, and vibrationof the transmission wire can be better reduced.

The invention relates to a double-antenna network card which comprises a network card in the size of 82x81mm, a main antenna arranged on the shorter edge of the network card and an auxiliary antenna arranged on the longer edge of the network card, wherein the working frequency bands of the main antenna and the auxiliary antenna are respectively ranging from 746MHz to 960MHz and from 1710MHz to 2170MHz. Compared with the prior art, the two antennae are both high in efficiency and isolation, have wide covering frequency band and can be applied to multiple countries and regions.

The invention discloses a method for controlling a response peak value of the vibration by a memory alloy spring, which comprises the following steps: 1) the control over the response peak value of the vibration is determined according to the dynamic load capacity of vibration absorbing equipment; 2) according to the given vibration absorbing space, the weight of the vibration absorbing equipment and the requirement of the installation, the type of a memory alloy superelastic spring is determined; 3) the bearing capacity of the memory alloy superelastic spring is calculated by utilizing the memory alloy superelastic platform effect to obtain the parameters and the quantity of the memory alloy superelastic spring; and 4) the memory alloy superelastic spring is arranged to realize the control to the response peak value of the vibration. The method determines the control over the response peak value of the vibration according to materials, the shape and the given dynamic load capacity of the vibration absorbing equipment, then selects the type of the spring according to the vibration absorbing space, utilizes a memory alloy superelastic platform to control the response peak value of the vibration, can ensure that the response peak value is stabilized within the preset range, and effectively protect the safety of the equipment.

The embodiment of the invention discloses intelligent portable equipment. The intelligent portable equipment comprises an antenna body which can work in the first frequency band; and a first circuit through which the antenna body is grounded, wherein at least one attribute value of the first circuit is adjusted to the preset state and a second frequency band is radiated, and the second frequency band is different from the first frequency band; and the antenna body can radiate the second frequency band based on the second frequency band radiated by the first circuit in the preset state.