37results about How to "Achieving Broadband Features" patented technology

The invention discloses a transparent broadband metamaterial absorber which comprises multiple periodically arranged unit structures. Each of the unit structures comprises an upper layer transparent resonant structure at the center of the unit structure, a middle layer transparent substrate, and a lower layer transparent reflection layer. The upper layer transparent resonant structure is above the middle transparent substrate, and the lower layer transparent reflection layer is under the middle layer transparent substrate. The upper layer transparent resonant structure is a symmetric figure which comprises a ring and a ring with a branch at the periphery of the ring. Both the upper layer transparent resonant structure and the lower layer transparent reflection layer are transparent conductive materials. According to the transparent broadband metamaterial absorber, the reflection rate of incident electromagnetic wave can be effectively attenuated in an X band, the transparent broadband metamaterial absorber is convenient to manufacture, the technology is mature, the light transmittance performance of the overall structure is excellent and a light transmittance rate is larger than or equal to 80% in a visible light range, and the transparent broadband metamaterial absorber has a good prospect in application.

The invention discloses a high-efficiency wideband power amplifier with a band-pass filter response function. The high-efficiency wideband power amplifier comprises a DC biasing circuit, a power amplification transistor, an input match circuit and an output match circuit. A microstrip line band-pass filter with different port impedances and a section of tuning microstrip line are designed to be used as the output match circuit of the power amplifier, the function of the filtering is achieved, meanwhile, the circuits are made to have the band-pass filter response characteristic, and two transmission zeros are generated on the edge of a passband. Compared with a traditional cascade circuit of a power amplifier and a filter, due to the fact that the microstrip line band-pass filter is used as the output match circuit, the entire circuit is small in size, small in loss and wide in working band, and high edge selectivity is achieved due to the two transmission zeros. The high-efficiency wideband power amplifier with the high-pass filter response function is achieved, and testing result validation is provided.

The invention discloses a broad-band dual-polarized electromagnetic dipole antenna. The antenna is based on an electromagnetic dipole complementation work principle. An orthogonal bow-tie-type gap loading paster is used to form an electric dipole. A vertical paster which has a quarter wavelength distance with ground and a middle floor are used to form a magnetic dipole so as to realize an antenna broadband dual polarization characteristic. A bended inverted-J shaped feed structure is used to realize feed. The feed structure possesses functions of realizing energy transmission from a coaxial line to a radiation terminal, coupling and adjusting an impedance to realize antenna impedance matching. A metal reflection box placed below the antenna has effects of improving an antenna direction diagram and protecting antenna stability. The antenna can realize good impedance matching in a wide work frequency band and simultaneously possesses characteristics of high isolation, a high gain, consistence of E surface and H surface direction diagrams and the like. By using the novel electromagnetic dipole antenna provided in the invention, the structure is simple, installation cost and an installation space of the antenna can be reduced and an important actual application value is possessed.

The present invention relates to a narrow beam H-shaped slot-coupling microstrip paster array antenna. The antenna comprises a coupled paster layer, an air layer, a radiation paster layer, a strip line feed network layer and a phase shift feed network layer. The strip line feed network layer is a two-layer dielectric substrate, the coupled paster layer, the air layer, the radiation paster layer, the strip line feed network layer and the phase shift feed network layer are overlapped and connected in order, the overlapping total thickness of the coupled paster layer, the air layer, the radiationpaster layer, the strip line feed network layer and the phase shift feed network layer is 6.2mm, and the antenna is fixed by employing four screws at the periphery. The antenna provided by the invention has advantages of a high frequency band, a high gain and circular polarization.

The invention relates to a dielectric radiator unit and an antenna device. The dielectric radiator unit comprises a metal reflector, a metal shell, a dielectric resonator and an excitation mechanism. The metal reflector is provided with an open area. The metal shell is provided with a resonant cavity having one end open. The open end of the resonant cavity is opposite to the open area. The metal shell is connected to one side of the metal reflector electrically or in an insulated manner via an insulator. The dielectric resonator is arranged in the resonant cavity. The excitation mechanism is connected with the dielectric resonator. The dielectric resonator is arranged in the resonant cavity of the metal shell, when the dielectric resonator is excited via the excitation mechanism, the dielectric resonator can produce a resonant mode, and the dielectric resonator acts on the resonant cavity to produce a hybrid resonant mode, that is, two resonant modes are produced, so that the broadband characteristic of the dielectric radiator unit can be realized. In addition, the dielectric resonator is arranged in the resonant cavity, so that the dielectric radiator unit has the characteristics of low profile and small size.

The invention discloses a folded cavity backed slot antenna based on a substrate integrated waveguide. The antenna comprises a first dielectric plate and a second dielectric plate which are arranged in a stacked manner, wherein a first metal plate and a second metal plate are respectively arranged on a surface and a back surface of the first dielectric plate, a first short-circuit nail group and asecond short-circuit nail group longitudinally penetrate through the surface and the back surface of the first dielectric plate, and a first gap structure and a second gap structure are respectivelyformed on the first metal plate and the second metal plate; a third metal plate and a fourth metal plate are respectively arranged on a surface and a back surface of the second dielectric plate, a third short-circuit nail group and a fourth short-circuit nail group longitudinally penetrate through the surface and the back surface of the second dielectric plate, and a third gap structure is formedon the third metal plate. According to the invention, a large working bandwidth is realized, the radiation pattern is stable, the directivity is good, and the gain in the working bandwidth is high.

The invention discloses a small broadband reconstruction smart phone antenna. By the adoption of the small broadband reconstruction smart phone antenna, the problems that in the prior art, a smart phone antenna which is small in size, low in profile and capable of achieving multi-frequency broadband working is hard to design in an given environment, and technology development requirements can not be met are mainly solved. The small broadband reconstruction smart phone antenna comprises a shell, a medium plate arranged in the shell, a metal land arranged on one surface of the medium plate, second bending metal strip sets and first bending metal strip sets, wherein the second bending metal strip sets are all arranged on the other surface of the medium plate, the first metal strip sets are connected with feeding points (1), and the first bending metal strip sets and the second bending metal strip sets are all composed of more than one metal strip, chip diodes, chip inductors and chip capacitors, wherein the chip device diodes, the chip inductors and the chip capacitors are connected among the metal strips. According to the scheme, the small broadband reconstruction smart phone antenna achieves the goals of being small, capable of covering eight working frequency bands and high in cost performance, and has high practical value and promotional value.

The invention discloses a meta-material loaded low cross-coupling antenna array. The low cross-coupling antenna array comprises a ground plane, metal patches, a metal connecting rod, a feed probe and a medium substrate, wherein the metal patches are connected with the ground plane through the metal connecting rod and the feed probe in order; the air medium is formed between the ground plane and the metal patch; the metal patches are in N*N array distribution, and a U-shaped groove is formed on the metal patch; the medium substrate is located on the ground plane, and the medium substrate is located between two adjacent metal patches; a dual-opening ring unit is etched on the medium substrate, and N means the array number of the metal patch. The low cross-coupling array disclosed by the invention has the advantages that the broadband feature is realized by etching the U-shaped groove on the patch by using the air medium; the inherent band-stop feature of the dual-opening ring structure is used for effectively inhibiting the cross-coupling influence of the antenna array in the stop band; the low cross-coupling antenna array has a compact structure and a cross-coupling inhibition feature, the plane structure is easy for processing and suitable for large batch production.

The invention discloses a millimeter wave monolithic quadrature down converter, pertaining to the field of electronic technology and relating to a millimeter wave monolithic quadrature down converter. Based on PHMET technology, the invention introduces a low-noise amplifying unit through a radio-frequency signal RF input port in the existing millimeter wave monolithic quadrature down converter, thus greatly reducing the frequency conversion loss of the whole monolithic quadrature down converter, without increasing the chip area. Simultaneously, wideband circuits such as Lange Coupler, Marchand Balun and the like are adopted to realize the power division of signals, thereby realizing the wideband feature of the whole quadrature down converter. The down converter can be applied to radar systems, communication systems and other systems.

The invention provides an electronic device provided with a 5G antenna. The electronic device includes: an array antenna implemented by a multilayer substrate inside the electronic device and having a plurality of antenna elements; and a transmission / reception unit circuit that controls a signal applied to each antenna element of the array antenna so as to perform beamforming by the array antenna, the each antenna element including: a patch antenna that is disposed on a specific layer of the multilayer substrate and has a first patch and a second patch that are spaced apart from each other at a predetermined interval; and a ground layer disposed at a lower portion of the patch antenna and provided with a groove, the first patch and the second patch being connected to the ground layer through a plurality of through holes disposed adjacent to the groove in a longitudinal direction of the groove.

The invention relates to a wideband multi-mode combined antenna. The antenna comprises a dielectric substrate, a slot antenna, a folded dipole, a metal frame and a coaxial feed line, wherein the slot antenna is fixed at the upper side of the dielectric substrate, the dielectric constant of the substrate is 2.65, a rectangular gap is formed in the middle of the dielectric substrate, two short gaps are symmetrically formed in a direction perpendicular to the gap, the coaxial line is used for feeding at the middle of the gap, the folded dipole is vertically connected with the two sides of the middle of the gap, a perpendicular part of the dipole is a trapezoid, a horizontal part of the dipole is a rectangle, and the metal frame is vertically arranged at the periphery of the dielectric substrate. In a designed example, the bandwidth of the antenna is 1.9-2.83GHz, the relative bandwidth is 39.3%, two resonant points are generated at 2.10GHz and 2.69GHz, and wideband characteristic is achieved. The antenna confirms to the wideband requirement, can be applied to frequency bands of LTE, WCDMA, WLAN and RFID, is wide in application range, and has relatively high practicability.

The invention provides a metasurface-based broadband differential antenna. The metasurface-based broadband differential antenna comprises a first dielectric plate, a second dielectric plate and a metal layer attached between the first dielectric plate and the second dielectric plate, wherein a rectangular gap is formed in the metal layer; a circular metal sheet with a gap is attached to the uppersurface of the first dielectric plate, and a metal feeder line is attached to the lower surface of the second dielectric plate; the circular metal sheet with the gap is provided with a first horizontal strip-shaped gap and second horizontal strip-shaped gaps which are arranged on the two sides; the circular metal sheet with the gap is provided with a first vertical strip-shaped gap and second vertical strip-shaped gaps which are arranged on the two sides; the metal feeder line comprises a cross part and two U-shaped parts which are symmetric about the cross section; and the cross-shaped upperend part of the cross part extends into the U-shaped part at the upper end, and the cross-shaped lower end part of the cross part extends into the U-shaped part at the lower end. The metasurface-basedbroadband differential antenna can achieve broadband characteristics and high-gain characteristics.

The invention discloses a shorting pin loading-based cavity-backed slot antenna of a substrate integrated waveguide. The antenna comprises a dielectric substrate body, a first shorting pin group, a second shorting pin group, a third shorting pin group, a feed joint and a slot structure, wherein the dielectric substrate body has a surface and a back surface; the feed joint is in end connection withone side edge of the dielectric substrate body, and is connected with the surface and the back surface of the dielectric substrate body; the slot structure is a slit formed in the back surface of thedielectric substrate body, and is a radiating of the antenna; the first shorting pin group, the second shorting pin group and the third shorting pin group longitudinally pass through the surface andback surface of the dielectric substrate body; the first shorting pin group encloses a waveguide cavity along the outer edge of the dielectric substrate body, and a first-stage cavity film, two second-order cavity films and a third-order cavity film are formed in the cavity; the second shorting pin group and the third shorting pin group are disposed inside the cavity, so that the first-stage cavity film and the two second-order cavity films are coupled to the third-order cavity film, and a four-resonance broadband property can be realized.

The invention relates to a Ka-band low-consumption compact feed network. The network comprises a waveguide aperture converter, four E bent waveguides, an E-plane single T and two E-plane variation single T. The waveguide aperture converter is sequentially connected with the two E bent waveguides and the E-plane single T to form a 1: 2 combiner / distributor, and the waveguide aperture converter forms a waveguide input port. One ends of the other two E bent waveguides are connected with the two ends of the E-plane single T respectively, and the other ends are connected with the two E-plane variable single T respectively to form two 1: 2 combiners / distributors. The two E-plane variable single T form four output ports, and a quartered synthesizer / distributor from the waveguide aperture converter to the E-plane variation single T is formed through cascading. According to the invention, the synthesis / distribution function of the network is realized by the E-plane single T and the variation E-plane T, and the broadband characteristic of the T is realized by adjusting the matching mode.

The invention discloses an aperiodic planar sparse phased array design method, which belongs to the technical field of array antenna design, and comprises the following steps: S1, subdividing an initial plane; s2, constructing an initial aperiodic sparse planar array; s3, introducing an extra disturbance array element; s4, optimizing positions of disturbance units. The three basic triangular surface elements are different in shape and size, and the initial triangular plane is similar to any one of the three basic triangular surface elements. The phased array designed by the invention has the excellent characteristics of wide frequency band, wide scanning angle and low sidelobe characteristic, and three different types of triangular planes are used as elements, so that an array with hundreds of array elements can be represented by using a small amount of variables, and the optimization process of a large-scale array is greatly simplified; besides, a CMA-ES optimization algorithm is adopted, and compared with a general genetic algorithm, a particle swarm optimization algorithm and the like, the method has better global search capability, so that the method is efficient, stable and worthy of popularization and application.

The invention discloses a novel multimode broadband directional diagram diversity microstrip antenna. The antenna comprises a first dielectric substrate, a second dielectric substrate, a metal floor with two slits, a feed network with two input ports and six rectangular radiation patches, wherein the first dielectric substrate and the second dielectric substrate are sequentially stacked from bottom to top, the metal floor is located on the upper surface of the first dielectric substrate, and the feed network is located on the lower surface of the first dielectric substrate; the six rectangular radiation patches are located on the upper surface of the second dielectric substrate and carry out coupled feeding according to the two slits. The antenna has the advantages of wide impedance bandwidth, wide radiation bandwidth, simple structure, low cost, directional diagram and the like.

The invention discloses a wideband dual polarized base station antenna, and belongs to the technical field of mobile communication base station antennas. The wideband dual polarized base station antenna comprises a radiation unit and a reflecting plate, and is characterized in that the radiation unit is composed of a dipole antenna provided with L-shaped slots, the reflecting plate is arranged below the dipole radiation unit, and the reflecting plate and the radiation unit feed in a coaxial connection mode; the radiation structure of the dipole antenna is formed by placing dipoles inclining by 45 degrees in a crossed manner, openings of the L-shaped slots of the dipole antenna are oppositely arranged, and crossed opposite corners of the dipole antenna are connected through two connecting pieces. By adopting the structure disclosed by the invention, the dipole radiation unit provided with the L-shaped slots increases a current path and realizes miniaturization of the antenna, the radiation structure is formed by placing the two dipoles inclining by 45 degrees in a crossed manner, thereby forming large coupling, and realizing wideband characteristics. The wideband dual polarized base station antenna is simple in design, convenient to process and assemble, good in production conformity, convenient for batch production and high in production efficiency, and has the advantages of wide band, dual polarization and the like.

The invention relates to a wideband multi-mode combined antenna. The antenna comprises a dielectric substrate, a slot antenna, a folded dipole, a metal frame and a coaxial feed line, wherein the slot antenna is fixed at the upper side of the dielectric substrate, the dielectric constant of the substrate is 2.65, a rectangular gap is formed in the middle of the dielectric substrate, two short gaps are symmetrically formed in a direction perpendicular to the gap, the coaxial line is used for feeding at the middle of the gap, the folded dipole is vertically connected with the two sides of the middle of the gap, a perpendicular part of the dipole is a trapezoid, a horizontal part of the dipole is a rectangle, and the metal frame is vertically arranged at the periphery of the dielectric substrate. In a designed example, the bandwidth of the antenna is 1.9-2.83GHz, the relative bandwidth is 39.3%, two resonant points are generated at 2.10GHz and 2.69GHz, and wideband characteristic is achieved. The antenna confirms to the wideband requirement, can be applied to frequency bands of LTE, WCDMA, WLAN and RFID, is wide in application range, and has relatively high practicability.

The invention provides a millimeter wave broadband packaging antenna based on a Fan-out packaging process, and the antenna comprises a packaging assembly, a microwave dielectric plate connected with the packaging assembly through a ball grid array, a chip assembly and a rewiring layer which are located in the packaging assembly, and an antenna assembly located in the rewiring layer. The chip assembly comprises a silicon-based chip. The antenna assembly comprises a circular patch antenna and a feed structure, a single-side arc rectangular notch and a fan-shaped notch are engraved in the circular patch antenna, the center line of the single-side arc rectangular notch and the center line of the fan-shaped notch are located on the same straight line, one end of the feed structure is inserted into the single-side arc rectangular notch, and the other end is connected with a port of the silicon-based chip. By improving the circular patch antenna, the broadband characteristic is realized, andthe problem of the narrowband characteristic of the millimeter wave packaging antenna is solved.

The invention provides a broadband monopole microstrip antenna, and mainly solves the problem that a conventional monopole antenna is narrow in frequency band and complex in three-dimensional structure. The broadband monopole microstrip antenna comprises a dielectric substrate (1), a feed line (2), a radiation patch (3), a high frequency joint (4) and an earth plate (5). The radiation patch (3) isin the shape of an ellipse of which the long axis is in the vertical direction, the front end of the radiation patch is provided with an impedance match adjusting section (6), the earth plate (5) iscomposed of two mutually-perpendicular rectangular metal plates (51, 52), arc-shaped gaps (7) and (8) are respectively carved in the central positions of opposite edges of the two rectangular zones, and the vertical projection of the radiation patch (3) on the bottom of the dielectric substrate is in front of the arc-shaped gap (8) and covers the arc-shaped gap (7). The broadband monopole microstrip antenna can cover S and C wave bands, the working frequency band ranges from 1.62 GHz to 8.28 GHz, and the broadband monopole microstrip antenna can be used as a microwave radiation and reception front-end antenna of a broadband wireless communication, detection or monitoring system.

The invention discloses a meta-material loaded low cross-coupling antenna array. The low cross-coupling antenna array comprises a ground plane, metal patches, a metal connecting rod, a feed probe and a medium substrate, wherein the metal patches are connected with the ground plane through the metal connecting rod and the feed probe in order; the air medium is formed between the ground plane and the metal patch; the metal patches are in N*N array distribution, and a U-shaped groove is formed on the metal patch; the medium substrate is located on the ground plane, and the medium substrate is located between two adjacent metal patches; a dual-opening ring unit is etched on the medium substrate, and N means the array number of the metal patch. The low cross-coupling array disclosed by the invention has the advantages that the broadband feature is realized by etching the U-shaped groove on the patch by using the air medium; the inherent band-stop feature of the dual-opening ring structure is used for effectively inhibiting the cross-coupling influence of the antenna array in the stop band; the low cross-coupling antenna array has a compact structure and a cross-coupling inhibition feature, the plane structure is easy for processing and suitable for large batch production.

The invention discloses a double dipole directional antenna based on same-phase power divider feeding. The double dipole directional antenna comprises a dielectric substrate (12), a double dipole radiating unit, a feeding unit, a first parallel-coupled doublet (5) and a second parallel-coupled doublet (6), wherein the double dipole radiating unit is formed by two printing dipoles printed on the dielectric substrate (12), the feeding unit is a same-phase power divider, and an output port of the same-phase power divider is connected with the double dipole radiating unit through the first parallel-coupled doublet (5) and the second parallel-coupled doublet (6). According to the double dipole directional antenna, the same-phase power divider is adopted to feed the double dipole directional antenna needing reverse feeding, and the same-phase power divider is simple and compact in structure, small in size, light in weight, easy to machine, manufacture and integrate, and capable of reducing complexity of the structure of the antenna. The double dipole directional antenna based on same-phase power divider feeding has the advantages of directed radiation, a wide band, proper gain and the like.

The invention provides a dielectric resonant antenna with an adjustable band trap characteristic, belonging to the field of radio communication, and particularly relates to a dielectric resonant antenna with an adjustable band trap characteristic. The problem that at present band trap-adjustable dielectric resonant antennas hardly eixst is solved. The dielectric resonant antenna comprises a dielectric resonator, a step impedance microstrip line, a dielectric substrate, a defective floor, a first radio frequency switch, a second radio frequency switch and a third radio frequency switch, and ismainly used in the field of radio communication.

The present invention provides a millimeter-wave broadband package antenna based on a Fan-out packaging process, comprising a package component, a microwave dielectric board connected to the package component through a ball grid array, a chip component and a redistribution layer located in the package component, and a redistribution layer located in the package component. The antenna assembly in the layer, the chip assembly includes a silicon-based chip, the antenna assembly includes a circular patch antenna and a feeding structure, and the circular patch antenna is engraved with a unilateral arc rectangular gap and a fan-shaped gap, The centerline of the unilateral arc rectangular notch and the fan-shaped notch are in a straight line, one end of the feeding structure is inserted into the unilateral arc rectangular notch, and the other end is connected to the port of the silicon-based chip. The invention realizes the broadband characteristic by improving the circular patch antenna, and solves the problem of the narrow-band characteristic of the millimeter-wave packaged antenna.

An SKA ultra-wideband refrigeration miniaturized four-ridge horn feed source comprises a conical horn, a four-ridge circular waveguide, a straight waveguide, a horn outer wall, ridge sheets, a first coaxial probe, a second coaxial probe and a short-circuit reflection cavity. One end of the four-ridge circular waveguide is connected with the conical horn, and the other end is connected with the short-circuit back cavity. The four ridge sheets are in a curved concave shape and are respectively embedded into the conical horn and the four-ridge circular waveguide. The first coaxial probe and the second coaxial probe are respectively inserted in from two ridge sheets, penetrate through the center of the four-ridge circular waveguide and then reach the ridge sheets at opposite positions. The first coaxial probe and the second coaxial probe are segmented into five matching sections through cascading of a plurality of matching blocks, and the return loss is reduced by adjusting the length andwidth of each section. The horn outer wall is loaded outside the conical horn and the four-ridge circular waveguide. The short-circuit reflection cavity is located in the straight waveguide and comprises an L-shaped matching block and a cutting inverted cone frustum. The working frequency band of the feed source is 2.4-24 GHz, and a refrigeration Dewar matched with the feed source is developed.

The invention belongs to the field of wireless mobile communication, and in particular relates to a compact multi-band antenna. The invention consists of a dielectric substrate, a microstrip transmission line, a first bow-shaped radiation unit, a second anti-shaped radiation unit, a third C-shaped radiation unit, a fourth anti-C-shaped radiation unit, and a ground plane. The first bow-shaped radiating unit and the second anti-C-shaped radiating unit adopt a bow-shaped multi-bending structure, and the third C-shaped radiating unit and the fourth anti-C-shaped radiating unit adopt a C-shaped bending structure. The invention adopts microstrip transmission line feeding, the radiating unit adopts the combination of direct feeding and indirect feeding, adopts multiple bending symmetrical structure and multi-unit integrated design, and realizes the multi-band and miniaturized design of the antenna , the compact multi-band antenna designed by the present invention has the characteristics of low profile, small size, low cost, easy integration, and loadable reactance elements, etc., and can be widely used in various wireless mobile communication devices.

The invention discloses a high-efficiency wideband power amplifier with a band-pass filter response function. The high-efficiency wideband power amplifier comprises a DC biasing circuit, a power amplification transistor, an input match circuit and an output match circuit. A microstrip line band-pass filter with different port impedances and a section of tuning microstrip line are designed to be used as the output match circuit of the power amplifier, the function of the filtering is achieved, meanwhile, the circuits are made to have the band-pass filter response characteristic, and two transmission zeros are generated on the edge of a passband. Compared with a traditional cascade circuit of a power amplifier and a filter, due to the fact that the microstrip line band-pass filter is used as the output match circuit, the entire circuit is small in size, small in loss and wide in working band, and high edge selectivity is achieved due to the two transmission zeros. The high-efficiency wideband power amplifier with the high-pass filter response function is achieved, and testing result validation is provided.

The invention discloses a broadband base station antenna based on a monopole structure, which includes a radiation structure, four identical coaxial feeders, a reflector, and a support column. The radiation structure is composed of four identical monopole structures, metal The floor structure is composed of a first medium plate; the metal floor structure includes a first metal patch printed on the upper surface of the first medium plate, a second metal patch printed on the lower surface, metal branches, metal through holes and Square slits; the four identical monopole structures are composed of semicircular patches and short microstrip lines; the four identical monopole structures are located on the upper surface of the first dielectric plate, and about the center of the Z axis Symmetrical distribution; the short microstrip line extends to the position corresponding to the square slot. The present invention adopts four identical monopole structures as the main radiation patch, and the antenna structure is simple. The present invention can be used for base station antennas in IMT / 2G / 3G / 4G / LTE systems.

The invention discloses an eight-frequency band reconfigurable intelligent mobile phone antenna, and mainly solves the problems of failure in designing a small-size, low-section and multiple-frequency wideband intelligent mobile phone antenna in a given environment in the prior art, and failure in meeting the technical development requirement. The eight-frequency band reconfigurable intelligent mobile phone antenna comprises a housing, a dielectric plate in the housing, a metal plate on one surface of the dielectric plate, and further comprises a second bent metal strip group and a first bent metal strip group, wherein both the second bent metal strip group and the first bent metal strip group are arranged on the other surface of the dielectric plate; a feeding point (1) is connected to the first bent metal strip group; the first bent metal strip group as well as the second bent metal strip group comprises at least two metal strips, a diode, a patch inductor and a patch capacitor; the diode, the patch inductor and the patch capacitor are connected between the metal strips. According to the scheme, the purposes of miniaturization, eight working frequency covering capability and higher performance-price ratio are realized; the utility value and the popularization value are higher.

The invention discloses an artificial magnetic conductor-based miniaturized broadband low-profile dual-polarized antenna, relates to the field of antennas and aims at solving the problems that an existing dual-polarized antenna is too high in profile, relatively large in size and narrow in band. A space coupling feeder line is printed on the upper surface of a first dielectric plate; two dipole antennas are vertical and are printed on the lower surface of the first dielectric plate; parasitic strips are symmetrically distributed on the periphery of the first dielectric plate by taking the intersection point of the two dipole antennas as the center; an AMC reflecting back plate is located below the first dielectric plate; two coaxial lines correspond to the two dipole antennas one by one; the two coaxial lines vertically pass through the AMC reflecting back plate and are electrically connected with the corresponding dipole antennas through outer conductors of the coaxial lines respectively; and inner conductors of the coaxial lines are electrically connected with a feeder point of the space coupling feeder line. The artificial magnetic conductor-based miniaturized broadband low-profile dual-polarized antenna is suitable for a mobile communication system.