73 results about "Antenna bandwidth" patented technology

Techniques for dynamic polarization selection by antenna bandwidth are disclosed herein. An example device includes a first antenna configured to transmit signals within a first bandwidth range, a second antenna configured to transmit signals within a second bandwidth range that is different from the first bandwidth range, one or more processors, and one or more memories communicatively coupled to the first antenna, the second antenna, and the one or more processors. The memories store instructions that, when executed by the one or more processors, cause the device to: transmit, by the first antenna, a first signal at a first frequency included within the first bandwidth range, determine that a second signal is to be transmitted at a second frequency that is different than the first frequency, determine that the second frequency is included within the second bandwidth range, and transmit the second signal using the second antenna.

The invention discloses a double-frequency circularly polarized antenna element, which belongs to the technical field of antennas and comprises a high-frequency-band radiation unit and a low-frequency-band radiation unit. The high-frequency band radiation unit comprises a first dielectric substrate and a first feed probe. A first radiation patch is embedded in one end face of the first dielectric substrate, and the first radiation patch is provided with two symmetrical chamfers. The top end of the first feed probe passes through the first through hole and is fixedly connected with the first radiation patch. The low-frequency-band radiation unit comprises a second dielectric substrate, a second radiation patch and a third dielectric substrate. The second radiation patch is arranged on the second dielectric substrate. The second dielectric substrate is provided with a second metalized through hole. The third dielectric substrate is provided with a Chebyshev Balun feed printed line. The antenna element provided by the invention not only can realize the circular polarization of the antenna, but also can reduce the coupling between antennas of different working frequency bands while expanding the bandwidth of the antenna, improve the isolation between two working frequency band ports, and reduce the cross polarization.

The invention discloses a Terahertz broadband high-gain Vivaldi antenna based on a CPW (Coherent Plane Waveguide) rotary slot line structure, and belongs to the field of Terahertz communication. The antenna adopts an integrated single-layer metal structure on the top layer of a dielectric substrate, and is divided into a radiation arm and a CPW rotating slot line balun along the axial direction. The inner side edge of the radiation arm is a smooth exponential change curve, and the middle exponential gradual change groove forms a broadband traveling wave radiation channel. Periodic grid choke grooves are loaded on the outer side edge so as to suppress edge surface waves and improve a directional diagram. The feed part adopts a CPW to slot line balun structure to realize conversion from an unbalanced mode to a balanced mode, and a fan-shaped radial branch knot is utilized to form a broadband virtual short circuit boundary at a feed point to ensure unidirectional efficient transmission of energy. In addition, a group of string-shaped director patches are arranged in the opening area of the exponential gradual change groove along the central axis, and the wave beam is guided through phase correction. The terahertz planar antenna effectively solves the problems of limited bandwidth and insufficient gain of the terahertz planar antenna, and has the characteristics of compact structure, easiness in integration, excellent radiation performance and the like.

The invention relates to the technical field of wireless communication, and discloses a liquid crystal antenna and communication equipment, and the liquid crystal antenna comprises a liquid crystal box and a metal waveguide; the liquid crystal box at least comprises a first substrate, a second substrate and a liquid crystal layer, wherein the first substrate and the second substrate are oppositely arranged, and the liquid crystal layer is located between the first substrate and the second substrate. The metal waveguide is located on the side, away from the second substrate, of the first substrate. The liquid crystal box further comprises a first metal layer which is located on the side, away from the metal waveguide, of the first substrate. The first metal layer is grounded, and the first metal layer comprises two hollow grooves; the length direction of the metal waveguide is the same as that of the hollow groove; in the direction perpendicular to the plane where the first substrate is located, the metal waveguide and the two hollowed-out grooves are at least partially overlapped. The communication equipment comprises the liquid crystal antenna. According to the invention, insertion loss can be effectively reduced, antenna bandwidth is improved, and antenna gain is ensured.

This application provides an antenna, antenna array, and communication device, aiming to construct more degrees of freedom and antenna ports within a limited antenna panel size. The antenna includes: four independent feed points; and four helical arms corresponding one-to-one with the four feed points, each helical arm connected to its corresponding feed point. The helical end of each helical arm can be connected to its corresponding feed point using an open-circuit stub structure, and / or, the end of each helical arm can be coupled to a parasitic patch, and / or, the spacing w between two adjacent helical arms satisfies: w ≤ λ / 10, where λ is the operating wavelength. This design provides four degrees of freedom and widens the antenna bandwidth. Within the limited antenna panel size, this is beneficial for improving system throughput.

The invention discloses an antenna housing framework for a broadband phased-array antenna, and belongs to the technical field of phased-array antennas. Which comprises a phased-array antenna body on which an antenna housing is arranged, and is characterized in that the antenna housing comprises an antenna housing upper layer, an antenna housing interlayer and an antenna housing lower layer; at least one of two sides of each layer in the three-layer structure of the antenna housing is provided with a radiation patch which is integrated with the antenna housing; the patch size of the radiation patch arranged on the antenna radiation surface of the phased-array antenna body and the patch size of the radiation patch arranged in the three-layer structure of the radome are sequentially reduced from bottom to top. According to the invention, the radiation patch is directly integrated on the antenna housing, so that the radiation patch becomes an organic component of a phased-array antenna radiation system; the radome is changed from a pure protection part to a key part with an active antenna bandwidth expansion function; the working bandwidth of the phased-array antenna can be effectively expanded on the premise that the complexity and the manufacturing cost of the phased-array antenna body are not greatly increased.

The application discloses a binary antenna with ultra-wideband and high isolation and a design method thereof, and mainly solves the problem that the bandwidth of the existing traditional antenna is too narrow to adapt to the demand of a wideband communication system. The application comprises a dielectric substrate, a metal floor and two symmetrical cone monopole antennas and a symmetrically designed antenna decoupling matching network (DMN), wherein the DMN is formed by bending eleven groups of transmission lines with fixed length and width, the first seven groups are used for decoupling of the antenna, and the last four groups are used for matching adjustment. Through the DMN, high port isolation (> 20 dB) between the two cone monopole antennas is realized. The DMN designed in the application has high design freedom, and compared with other decoupling technologies, a wider decoupling bandwidth is realized.

This application discloses a wide-beam cavity antenna element and its phased array antenna. The cavity antenna element includes a first radiating patch, a first dielectric layer, a second radiating patch, an adhesive layer, a second dielectric layer, and a metal ground layer arranged sequentially. The first radiating patch has a first chamfer on each diagonal and a first U-shaped slot in its center. The second radiating patch has a second chamfer on each diagonal and a second U-shaped slot in its center. This application adopts a dual-radiating patch structure, with the first and second radiating patches located in different dielectric layers, effectively expanding the antenna bandwidth and improving radiation efficiency. The double-layer square microstrip patch design is compact and facilitates miniaturization and integration. The first radiating patch incorporates the first chamfer and the first U-shaped slot, while the second radiating patch incorporates the second chamfer and the second U-shaped slot, increasing the current path and transforming the original single resonant point into three resonant points within the frequency band, significantly widening the antenna's impedance bandwidth.

The invention belongs to the technical field of antenna and radio frequency circuit integration, and discloses a cavity antenna circuit integrated metamaterial and a preparation method thereof. By removing part of the dielectric substrate to construct the artificial cavity, space is provided for a radio frequency functional circuit, and efficient coplanar integration of the antenna and the radio frequency circuit is realized. According to the invention, the mutual restriction of the thickness of the dielectric substrate on the antenna bandwidth and radio frequency circuit design can be overcome, the design flexibility and stability are improved, and the application scene is expanded. Through cavity and space stacking integration, the problem that in the prior art, an antenna and a radio frequency circuit are machined on the same layer of substrate at the same time, and consequently the design requirements of the antenna and the radio frequency circuit are contradictory is solved, the artificial cavity is formed in the bottom of the antenna medium, and the radio frequency function circuit executing the electromagnetic function is arranged in the artificial cavity, so that the antenna efficiency is improved. The prepared cavity antenna circuit integrated metamaterial can simultaneously exert the optimal performance of the two parts of an antenna and a radio frequency circuit, and the design flexibility is greatly improved.

The low-profile vehicle-mounted antenna comprises a PCB monopole antenna, the PCB monopole antenna comprises a board body, antenna radiation patterns are arranged on the front face and the back face of the board body respectively, the board body directly feeds through a cable, and a printing grounding structure is arranged on the board body, forms electromagnetic coupling with the cable and is used for expanding the bandwidth of the antenna. According to the low-profile vehicle-mounted antenna, the antenna radiation patterns are arranged on the two sides of the plate body respectively, so that a low-profile flat structure is achieved, and the height of the antenna is reduced. And meanwhile, by reasonably utilizing the coupling effect of the cable and the printed grounding structure on the radiation patch, the bandwidth of the antenna is expanded, and the full-band stable performance is realized. And direct feeding is realized through the cable without an additional and complex feed network, so that the effects of simplifying the structure and reducing the cost are achieved.

The invention provides a broadband horizontal polarization waveguide slot antenna array, which comprises a radiation slot layer, a slot coupling layer, a feed network layer and a standard waveguide interface, and is characterized in that the radiation slot layer is provided with 16 independent ridge waveguides, 16 V-shaped slots are cut on each ridge waveguide, each ridge waveguide is blocked by three cavity isolation walls to form four ridge waveguide sections, and each cavity isolation wall is provided with one V-shaped slot. Four V-shaped slots are distributed on each ridge waveguide section, 64 I-shaped coupling slots are formed in the slot coupling layer, the I-shaped coupling slots are located under the ridge waveguide sections, and the feed network layer adopts a flattened narrow-edge ridge waveguide design. Comprising a five-order one-to-two ridge waveguide power divider, a ridge waveguide-to-common waveguide converter, a multi-branch waveguide impedance transformer and an E-plane T-shaped joint. The antenna has the beneficial effects that the antenna is light in weight and low in profile; the antenna bandwidth is improved; the antenna structure is simple.

The application discloses a miniaturized broadband folded dipole base station antenna and relates to the technical field of base station antennas.The miniaturized broadband folded dipole base station antenna comprises a metal reflecting plate, a dielectric plate, a support column assembly and a feed point, the dielectric plate is fixed on the metal reflecting plate through the support column assembly, the surface of the dielectric plate is printed with a microstrip line assembly in the shape of a whole rectangular ring, and the feed point is arranged on the microstrip line assembly and serves as a simulation port of simulation software.The antenna profile height and cross-sectional area are reduced, and the antenna bandwidth is improved through mode fusion and microstrip line coupling.

The invention provides a moving and standing wave electrode composite loading microwave photon receiving antenna and a signal receiving method thereof.The antenna comprises a dual-band combined plane patch antenna and a lithium niobate film moving and standing wave electro-optical modulation chip, a high-frequency antenna and a moving wave electrode are mutually connected through gold wire bonding, and a low-frequency antenna and a standing wave electrode are mutually connected through gold wire bonding; and a single beam of light wave is modulated by the two electrodes in sequence by using a cascade light path. The signal receiving method comprises the steps of light wave injection, dual-band signal induction and loading, sequential modulation based on the lithium niobate electro-optical effect, photoelectric conversion and signal extraction. Through the traveling wave and standing wave electrode composite loading and optical domain modulation mechanism, the bottleneck that the bandwidth of a traditional antenna is limited by impedance matching is broken through, high-sensitivity receiving is achieved within the ultra-wide band of 10 MHz to 20 GHz, and meanwhile the ultra-wide-band antenna has the advantages of being compact in structure and high in electromagnetic interference resistance and is suitable for ultra-wide-band weak field detection and high-precision electromagnetic signal receiving.

An electrically small antenna system modulates the Q factor of the antenna during electrical transmission to decrease the Q factor during signal transitions between frequency states thereby affecting an improved trade-off between antenna bandwidth and operating efficiency.

The scheme discloses a POS machine miniaturization large-bandwidth high-efficiency antenna, which uses a small antenna size to excite a low-frequency working mode of a mainboard, uses components such as a camera FPC and an NFC coil which are not conducive to the antenna to expand the frequency, realizes better low-frequency bandwidth, changes the disadvantage into an advantage, optimizes the shape of the antenna working at a high frequency and places the antenna at a suitable position to excite the NFC coil and the rear camera FPC to generate a low-frequency resonance, thereby expanding the antenna bandwidth to a low frequency enough to cover common low-frequency communication frequency bands, and finally realizes a very small space-occupied and very high-efficiency large-bandwidth antenna.

The invention discloses an underground target positioning method and device based on L-shaped antenna array space sampling, and belongs to the technical field of ground penetrating radars. According to the method, a one-transmitting-multiple-receiving L-shaped antenna array is adopted to move at a constant speed in the scanning direction, and echo signals of multiple positions are obtained through continuous space sampling; performing two-dimensional direction of arrival estimation on each sampling point to obtain a parallel direction angle and an orthogonal direction angle of the target; angle change curves of different targets are separated through angle calibration and data association processing; and finally, fitting an angle change rule based on a genetic algorithm, and inverting a three-dimensional coordinate of the underground target. The method overcomes the contradiction between the resolution and the signal bandwidth of a traditional ground penetrating radar, reduces the dependence on the antenna bandwidth and the system hardware, achieves the high-precision and low-cost three-dimensional positioning of the dot frequency signal for multiple targets, and is suitable for the fields of geological exploration, road detection, underground pipeline detection and the like.

The invention discloses a radiation and scattering integrated microstrip antenna based on an artificial magnetic conductor, and belongs to the technical field of microwave antennas. The antenna comprises a microstrip antenna, four first artificial magnetic conductor (AMC) arrays and four second AMC arrays, the microstrip antenna is located in the center, and the four first AMC arrays and the four second AMC arrays are distributed on the periphery in a chessboard structure mode. Compared with the original microstrip antenna, the radiation-scattering integrated microstrip antenna based on the artificial magnetic conductor has the advantages that the antenna bandwidth is basically unchanged, the gain of the antenna is improved, and the radiation performance of the original radiation antenna is not influenced; the RCS of the antenna is effectively reduced in a broadband, the overall profile is low, and the antenna can be used in the fields of modern wireless communication systems, electronic reconnaissance and confrontation and the like.

This invention relates to the field of millimeter-wave radar and discloses a millimeter-wave antenna. The millimeter-wave antenna of this invention includes a feed line and multiple antenna elements connected to the feed line. The multiple antenna elements include a feed-end antenna element and a terminal antenna element connected to the feed line's feed end and end, as well as one or more trapezoidal antenna elements. The millimeter-wave antenna of this invention has a wide antenna bandwidth; the antenna linear arrays can be very close together, which is beneficial for selecting smaller element spacing during antenna linear array layout design. Furthermore, when forming a planar array, reducing the spacing between adjacent antenna linear arrays can reduce the lateral dimension of the antenna planar array.

The invention discloses a circularly polarized phased-array antenna unit and an antenna array, and belongs to the technical field of antennas. The circularly polarized phased-array antenna unit comprises a first substrate layer, a second substrate layer, a fourth substrate layer, a fifth substrate layer and a fourth metal ground layer which are arranged in sequence; parasitic patches, radiation patches and bridge strip lines are laid on the first substrate layer, the second substrate layer and the fourth substrate layer respectively. The bridge strip line is electrically connected with the radiation patch through the L-shaped feed probe, and the bridge strip line can generate two signals with the phase difference of 90 degrees. The antenna array comprises a plurality of array units in a rectangular array; the array unit comprises four circular polarization phased array antenna units, and the four antenna units are arranged in an annular array. According to the invention, the bandwidth of the antenna is expanded, the broadband performance of the antenna is optimized, and the processing cost is reduced.

The utility model relates to the technical field of wireless communication, and discloses a novel wide-frequency-band ceramic antenna. The novel wide-frequency-band ceramic antenna comprises a first ceramic antenna, a second ceramic antenna and a third ceramic antenna which are stacked together from top to bottom and have the same size, the first ceramic antenna and the third ceramic antenna are provided with transmitting and receiving end electrodes and feed electrodes; the first ceramic antenna, the second ceramic antenna and the third ceramic antenna are provided with transverse electrodes and longitudinal electrodes, and the transverse electrodes and the longitudinal electrodes are provided with metal through holes. The first, second and third ceramic antennas are stacked to reduce the antenna volume and reduce the installation difficulty; the first ceramic antenna and the third ceramic antenna are respectively provided with a transmitting and receiving end receiving electrode and a feed electrode, and a plurality of transmitting and receiving end electrodes and feed electrodes are arranged, so that the antenna bandwidth is effectively enhanced, and the radio frequency performance and the frequency band coverage range are enhanced. The metal through holes are additionally formed in the antenna electrode, distributed inductance is increased, the standing wave bandwidth and the gain bandwidth of the antenna are enhanced, and the frequency band coverage range of the antenna is increased. The utility model further discloses a wireless temperature and humidity sensor.

The utility model discloses a folded dipole high-gain omnidirectional antenna array applied to a 5G frequency band. The whole omnidirectional antenna array is composed of four folded dipole pairs; each array unit comprises two folding dipoles which are arranged in an axial symmetry manner; the feed network consists of two sections of 50-ohm microstrip lines and a plurality of sections of quarter-wavelength impedance matching lines; each folded dipole is a hollow rectangle formed by splicing a plurality of rectangular patches, current returns to the position below a current starting point through a rectangular line formed by winding the patches, and the total folding length is about one half of the wavelength corresponding to a required frequency point; a plurality of parasitic patches are arranged beside each folded dipole, so that the impedance matching of the antenna can be improved, and the bandwidth of the antenna can be deepened; a short-circuit copper column is arranged at the tail end of each folded dipole and is used for being connected with a ground plane; a 50-ohm coaxial line is used for feeding at the bottom of the omnidirectional antenna array, and an inner conductor and an outer conductor of the omnidirectional antenna array are connected with a top radiation patch and a bottom grounding surface of the antenna array respectively.

The utility model belongs to the technical field of positioning antennas, and particularly provides a light-weight full-band positioning antenna, which comprises a single-layer dielectric substrate, a circular high-frequency radiation patch attached to the center of the upper surface of the single-layer dielectric substrate, a cavity arranged on the lower surface of the single-layer dielectric substrate, a circular low-frequency radiation patch attached to the bottom of the cavity, and a circular high-frequency radiation patch attached to the bottom of the cavity. The circular high-frequency radiation patch is internally provided with at least one circular high-frequency coupling patch, the circular low-frequency radiation patch is internally provided with at least one rectangular low-frequency coupling patch, every two circular high-frequency coupling patches are arranged at intervals through non-metal gaps, and the circular high-frequency coupling patches and the rectangular low-frequency coupling patches are connected through feed copper columns. According to the utility model, a high-frequency part is coupled through feeding on the upper surface, and a low-frequency part is coupled through feeding on the lower surface, so that the antenna is miniaturized, the structure is simplified, high bandwidth and high reliability are further realized, the bandwidth of the antenna is increased, the antenna can cover a larger frequency range, and the receiving and transmitting performance of the antenna is improved.

The utility model relates to a double-frequency four-arm helical antenna, which comprises a PCB base plate and an antenna assembly, the antenna assembly comprises a first antenna unit, a second antenna unit, a third antenna unit and a fourth antenna unit, the first antenna unit, the second antenna unit, the third antenna unit and the fourth antenna unit are distributed on the PCB base plate in an annular array mode, and the first antenna unit, the second antenna unit, the third antenna unit and the fourth antenna unit comprise a first radiation oscillator, a second radiation oscillator and a metal short circuit part. The first radiation oscillator is configured to excite a first resonant frequency, the second radiation oscillator is configured to excite a second resonant frequency, the first radiation oscillator is connected with the PCB bottom plate to form a feed point, the second radiation oscillator is connected with the PCB bottom plate to form a grounding point, and the first radiation oscillator and the second radiation oscillator are connected into a whole through the metal short circuit part. The antenna provided by the utility model has the characteristics of low height, small size, light weight, low cost and excellent performance, is wide in bandwidth, and can meet the requirement of supporting GNSS multi-mode multi-frequency high-precision positioning.

The application relates to a metalized high-power logarithmic periodic antenna unit and array, and belongs to the technical field of microwave antennas. The antenna unit comprises a feeding coaxial probe, a feeding connection copper block, a metal feeding line and a metal logarithmic periodic dipole structure; the antenna as a whole adopts a full-metal structure without a dielectric plate, and the feeding mode adopts the metal feeding line taking air as the medium, so that the heat dissipation capacity and power capacity of the antenna are improved; the lengths of the antenna dipoles gradually increase from high to low, the dipole arms are folded inwards by 45 degrees with the set line as the central axis in the vertical plane, finally all the dipoles are located on two mutually perpendicular planes, and on the basis of the bottom several groups of dipole arms, the dipole arms are further bent by 90 degrees twice in the vertical direction to form C-shaped dipole arms; the structure effectively reduces the transverse size of the antenna unit, the coupling current between the array elements in the antenna array can be utilized to expand the antenna bandwidth to the low frequency. The application has the advantages of large antenna power capacity, small antenna unit and the like.

The invention discloses an antenna bandwidth extension optimization method and device which can be used in the field of railway communication, and the method comprises the steps: obtaining geometric parameters of a to-be-optimized antenna, extracting data features of the geometric parameters, and obtaining a feature data set; after the feature data set is subjected to normalization processing, a learning label is added to each group of data features in the feature data set; determining the plurality of groups of data features added with the learning labels as a plurality of groups of sample sets, and for a ridge regression model, a polynomial regression model and a random forest model, training each model by using each group of sample sets; and constructing a feature set according to the resonance bandwidth response value predicted by each model and the multiple groups of sample sets, performing intensive training on each model by using the feature set, determining a model with an optimal test result, and optimizing antenna bandwidth extension by using the model with the optimal test result. The antenna design optimization cost can be reduced, and the antenna performance can be improved.

The invention discloses a broadband low-profile full-wavelength loop antenna which comprises a full-wavelength loop antenna body, an annular matching structure, a dielectric plate, a feed port, a metal reflecting plate and a supporting column. The full-wavelength loop antenna and the annular matching structure are printed on the upper surface of the dielectric plate, and the feed port is used for realizing signal feed-in; the annular matching structure and the full-wavelength loop antenna are coaxially connected in a coplanar manner; the metal reflecting plate is arranged below the dielectric plate in parallel through supporting columns, and the supporting columns are used for fixing the dielectric plate and the metal reflecting plate and maintaining a preset distance; according to the antenna, through the cooperative design of matching structure optimization and metal reflecting plate loading, resonance point splitting and broadband coverage are achieved, meanwhile, the profile of the antenna is reduced to one eighth of the wavelength, the problems that a traditional full-wavelength loop antenna is narrow in bandwidth, poor in impedance matching and high in profile are solved, and good engineering application prospects are achieved.

The application discloses a broadband waveguide slot array antenna, which comprises a first metal plate, a second metal plate, a third metal plate and a fourth metal plate which are stacked in sequence, and a radiation port is formed on the first metal plate and the second metal plate; the radiation port longitudinally penetrates the first metal plate and the second metal plate and is in a wide-side symmetrical oblique slot structure; a pair of radiation waveguides and a pair of coupling longitudinal slots which are in communication with each other are formed by longitudinally slotting the middle part of the third metal plate; a coupling waveguide and a waveguide matching structure which are in communication with each other are formed by longitudinally slotting the middle part of the fourth metal plate; the radiation port, the radiation waveguide, the coupling longitudinal slot, the coupling waveguide and the waveguide matching structure are in communication with each other in sequence, and a radiation channel is formed. Through the structure, the coupling between antennas can be reduced, the isolation and the antenna gain are improved, the antenna bandwidth is effectively widened, the influence of the processing error of the radiation slot and the contact slot between the metal plates on the antenna radiation is reduced, and the antenna is easy to process and install.

The embodiment of the invention provides a dual-polarized antenna which is applied to the technical field of antennas. The antenna includes: a reflecting plate; the first dielectric substrate is arranged opposite to the reflecting plate; the at least two dipoles are arranged on the first dielectric substrate and are arranged in a mutually crossed manner; each dipole comprises two radiation arms, the two radiation arms are respectively provided with slots, and the radiation arms form a ring shape through the slots; at least one part of the inner edges of the two radiation arms is provided with an expansion part protruding towards the center of the corresponding radiation arm, and the expansion parts on the two radiation arms of one dipole are symmetrical about the center of the corresponding dipole. According to the dual-polarized antenna, the expansion parts protruding towards the center are arranged on the inner edges of the radiation arms, and the expansion parts on the two radiation arms are symmetrical about the center of the corresponding dipole, so that the shape of the radiation surface of each radiation arm is changed, and compared with a dual-polarized antenna in the prior art, the dual-polarized antenna can achieve the effects of improving the bandwidth of the antenna and improving the gain of the antenna.

The invention discloses a broadband polarization diversity wearable receiving antenna system for a capsule endoscope system and the capsule endoscope system comprising the broadband polarization diversity wearable receiving antenna system, and the wearable receiving antenna system comprises a flexible wearable carrier and a multi-antenna combination array integrated in the flexible wearable carrier; the multi-antenna combination array is composed of at least two independent antenna units. The antenna units have different preset resonant frequencies, and the resonant frequencies take a common reference frequency f0 as a center and are progressively shifted according to a preset step frequency value f to jointly form a synthetic receiving frequency band of which the coverage is wider than the bandwidth of a single antenna; meanwhile, the polarization directions of the antenna units are different from each other, and the antenna units sequentially rotate by a certain angle on the horizontal plane to jointly form a polarization diversity receiving array. On the premise of not depending on an active tuning circuit, the system can passively adapt to body type differences of different users, and effectively capture incoming waves in any polarization direction, so that the stability and success rate of image data receiving are improved.