CN112054301A - Miniaturized linear polarization, dual polarization, circular polarization and triple polarization 5G antenna - Google Patents
Miniaturized linear polarization, dual polarization, circular polarization and triple polarization 5G antenna Download PDFInfo
- Publication number
- CN112054301A CN112054301A CN202010974332.5A CN202010974332A CN112054301A CN 112054301 A CN112054301 A CN 112054301A CN 202010974332 A CN202010974332 A CN 202010974332A CN 112054301 A CN112054301 A CN 112054301A
- Authority
- CN
- China
- Prior art keywords
- antenna
- substrate
- layer
- metamaterial
- polarization
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000009977 dual effect Effects 0.000 title claims abstract description 13
- 230000010287 polarization Effects 0.000 title abstract description 49
- 239000000758 substrate Substances 0.000 claims abstract description 88
- 239000002184 metal Substances 0.000 claims abstract description 38
- 230000008878 coupling Effects 0.000 claims abstract description 24
- 238000010168 coupling process Methods 0.000 claims abstract description 24
- 238000005859 coupling reaction Methods 0.000 claims abstract description 24
- 230000005855 radiation Effects 0.000 abstract description 33
- 238000013461 design Methods 0.000 abstract description 14
- 230000005284 excitation Effects 0.000 abstract description 6
- 235000001674 Agaricus brunnescens Nutrition 0.000 abstract description 2
- 238000009826 distribution Methods 0.000 abstract description 2
- 239000003990 capacitor Substances 0.000 description 10
- 230000009286 beneficial effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000004891 communication Methods 0.000 description 7
- 238000002955 isolation Methods 0.000 description 6
- 238000011068 loading method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/0086—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices having materials with a synthesized negative refractive index, e.g. metamaterials or left-handed materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
Landscapes
- Waveguide Aerials (AREA)
Abstract
The invention discloses a miniaturized 5G antenna with linear polarization, dual polarization, circular polarization and triple polarization.A novel electromagnetic metamaterial resonator structure-a ring resonator is formed by arranging two orthogonal capacity type gaps in the transverse and longitudinal directions on a Mushroom structure in a traditional metamaterial, a negative first-order resonance mode is excited, and impedance, field distribution and radiation characteristics similar to those of a traditional positive first-order mode are realized while the miniaturized design is realized; and through appropriate coupling feed excitation or other coaxial back feed and differential feed forms, the design of a miniaturized linear polarization antenna, a dual polarization antenna, a circular polarization antenna and a triple polarization antenna is realized, open-circuit microstrip line branches are connected in series on a coupling feed line on the back of the floor, a new resonance mode is introduced, double resonance points appear in the band, the bandwidth of the antenna is effectively expanded, and the bandwidth requirement of a 5G new frequency band is met. In addition, standard metal screws are used for supporting and a small number of dielectric substrates are adopted, so that dielectric loss is reduced as much as possible, and high radiation efficiency is kept.
Description
Technical Field
The invention relates to the technical field of 5G antennas, in particular to a miniaturized linear polarization, dual polarization, circular polarization and triple polarization 5G antenna.
Background
With the rapid and comprehensive promotion of the applications of wireless communication and the like of a 5G new frequency band and other sub 6GHz frequency bands, a wireless communication system provides new requirements and challenges for antenna performance, and the development of a 5G antenna with miniaturization, wide bandwidth and high radiation performance is urgently needed. Meanwhile, in order to adapt to a complex and variable application scenario, effectively improve the multipath effect in propagation and increase the channel communication capacity, the development of multi-polarization antennas (dual polarization, circular polarization and triple polarization antennas) is particularly important. At present, in order to meet the requirement of a 5G new frequency band on wide bandwidth, the traditional dual-polarized base station antenna generally adopts the schemes of a cross dipole pair antenna with a reflection floor, a magnetoelectric dipole antenna, a slot antenna with a reflection cavity and the like, so that the traditional dual-polarized base station antenna has the defects of large antenna size (half-wavelength limitation), high antenna profile (quarter-wavelength limitation and the like) and the like, and cannot be effectively applied to a microcell transmitting end with limited space such as indoor space. In order to meet the requirement of wide bandwidth, a conventional circularly polarized antenna usually adopts a cross dipole pair circularly polarized antenna, a multimode circularly polarized patch antenna and a circularly polarized antenna with broadband feed, but the conventional circularly polarized antenna has the problem of large antenna size. The traditional triple polarized antenna adopts a triple polarized antenna with a substrate integrated waveguide loaded with orthogonal dipoles and a triple polarized antenna with a patch loaded with the orthogonal dipoles, and has the defects of large antenna size, high antenna profile and narrow bandwidth. The substrate integrated waveguide and the triple polarized antenna loaded by the double polarized patch have the problems of large size and the like. The traditional miniaturized antenna usually adopts methods of loading a high dielectric constant substrate, slotting the surface of the antenna, bending the length of the antenna and the like, and the miniaturized antenna has the problems of narrow working bandwidth, large antenna loss and poor antenna radiation performance. Therefore, the miniaturized multi-polarization antenna developed by the traditional technology still has difficulty in meeting the requirement of 5G wide-band communication.
In summary, the conventional multi-polarization antenna for 5G new frequency band and sub 6GHz applications has the disadvantages of large size, limited bandwidth, low radiation efficiency, and the like, and is difficult to be applied to the antenna application requirements of indoor and other miniaturized systems.
Disclosure of Invention
In view of the above-mentioned deficiencies in the prior art, the present invention provides a class of miniaturized multi-polarized antennas, including but not limited to linear, dual, circular, and triple polarized 5G antenna schemes.
In order to achieve the above object, in a first aspect, the present invention provides a miniaturized linearly polarized 5G antenna, including an electromagnetic metamaterial ring resonator structure layer, a floor layer, and a short-circuit metal pillar fixedly supporting the electromagnetic metamaterial ring resonator structure layer and the floor layer;
the electromagnetic metamaterial ring resonator structure layer comprises a top-layer substrate and a metamaterial patch surface arranged on the top-layer substrate, wherein the metamaterial patch surface is formed by applying a capacitive gap on a metal surface;
the floor layer comprises a bottom substrate with a strip-shaped slotted gap and a microstrip line feeder line which forms a gap coupling feed structure with the bottom substrate.
The beneficial effect of this scheme is: the invention adopts a novel electromagnetic metamaterial resonator structure, and realizes the miniaturized linearly polarized radiation design through proper coupling feed excitation or other coaxial back feed and differential feed modes; and an open-circuit microstrip line is connected in series on the coupling feeder line on the back of the floor, which is equivalent to cascade a first-order low-pass filter response to form an in-band double-resonance mode, thereby effectively expanding the bandwidth and meeting the bandwidth requirement of a 5G new frequency band.
In a second aspect, the invention provides a miniaturized dual-polarized 5G antenna, which comprises an electromagnetic metamaterial ring resonator structure layer, a floor layer and a short-circuit metal column for fixedly supporting the electromagnetic metamaterial ring resonator structure layer and the floor layer;
the electromagnetic metamaterial ring resonator structure layer comprises a top-layer substrate and a metamaterial patch surface arranged on the top-layer substrate, wherein the metamaterial patch surface is formed by applying a capacitive gap on a metal surface;
the floor layer comprises a bottom substrate with a cross slotted gap and a microstrip line feeder line which forms an orthogonal gap coupling feed structure with the bottom substrate.
The beneficial effect of this scheme is: the invention adopts a novel electromagnetic metamaterial resonator structure, and realizes the miniaturized dual-polarized radiation design through proper coupling feed excitation or other coaxial back feed and differential feed modes; and an open-circuit microstrip line is connected in series on the coupling feeder line on the back of the floor, which is equivalent to cascade a first-order low-pass filter response to form an in-band double-resonance mode, thereby effectively expanding the bandwidth and meeting the bandwidth requirement of a 5G new frequency band.
Preferably, the microstrip line feeder specifically includes a first-port microstrip line feeder and a second-port microstrip line feeder which are orthogonally arranged.
The beneficial effects of the above preferred scheme are: the metamaterial antenna is orthogonally fed in by a first port microstrip line feeder and a second port microstrip line feeder which are orthogonally arranged, so that high-isolation dual-polarized radiation is generated; and the antenna and the bottom substrate with the cross slotted slot form a slot coupling feed structure to excite the antenna to perform resonant radiation and broadband operation.
In a third aspect, the invention provides a miniaturized circularly polarized 5G antenna, which comprises an electromagnetic metamaterial ring resonator structure layer, a floor layer and a short circuit metal column for fixedly supporting the electromagnetic metamaterial ring resonator structure layer and the floor layer;
the electromagnetic metamaterial ring resonator structure layer comprises a top-layer substrate and a metamaterial patch surface arranged on the top-layer substrate, wherein the metamaterial patch surface is formed by coating a capacity-type gap on a metal surface and slotting the center of a patch;
the floor layer comprises a bottom substrate with a cross slotted gap and a microstrip line feeder line which forms an orthogonal gap coupling feed structure with the bottom substrate.
The beneficial effect of this scheme is: the novel electromagnetic metamaterial resonator structure is adopted, and the further miniaturization is achieved by slotting the center of the patch; and through proper coupling feed excitation or other coaxial back feed and differential feed modes, the miniaturized circularly polarized radiation design is realized; and an open-circuit microstrip line is connected in series on the coupling feeder line on the back of the floor, which is equivalent to cascade a first-order low-pass filter response to form an in-band double-resonance mode, thereby effectively expanding the bandwidth and meeting the bandwidth requirement of a 5G new frequency band.
Preferably, the microstrip line feeder is specifically fed into the electromagnetic metamaterial ring resonator structure layer at 45 °.
The beneficial effects of the above preferred scheme are: the microstrip line feeder line is fed into the electromagnetic metamaterial ring resonator structure layer in a 45-degree mode, and can excite two orthogonal super resonator modes of an exciter to generate circularly polarized radiation and expand the working bandwidth of an antenna; and the antenna and the bottom substrate with the cross slotted slot form a slot coupling feed structure to excite the antenna to perform resonant radiation and broadband operation.
In a fourth aspect, the invention provides a miniaturized triple-polarized 5G antenna, which comprises an electromagnetic metamaterial ring resonator structure layer, a floor layer, and a support pillar for fixedly supporting the electromagnetic metamaterial ring resonator structure layer and the floor layer;
the electromagnetic metamaterial ring resonator structure layer comprises a top substrate, a metamaterial patch surface and a metal supporting wall, wherein the top substrate is divided into an inner substrate and an outer substrate by a ring-shaped empty groove, the inner substrate and a floor layer are fixedly supported through a short-circuit metal column, the inner side edge of the outer substrate and the floor layer are fixedly supported through the metal supporting wall, the metamaterial patch surface is arranged on the inner substrate, and the metamaterial patch surface is formed by applying an engraved gap on the metal surface;
the floor layer comprises a bottom substrate with a cross slotted gap, and a microstrip line feeder and a common mode feeder structure which form an orthogonal gap coupling feed structure with the bottom substrate.
The beneficial effect of this scheme is: the antenna adopts a novel electromagnetic metamaterial resonator structure, and realizes the miniaturization of the antenna by controlling the sizes and the positions of the metamaterial patch surface and the screw; the antenna floor is connected with the top patch by utilizing the square metal wall, so that a horizontal dual-polarization mode and a vertical polarization mode are isolated, good port isolation is obtained, and meanwhile, the low-profile design of vertical polarization is realized; and a common-mode in-phase feed microstrip line is adopted and simultaneously connected to two sides of the patch, and two half-mode antennas with low sections are excited in phase to form a vertical polarized horizontal omnidirectional radiation mode.
Preferably, the microstrip line feeder specifically includes a first-port microstrip line feeder and a second-port microstrip line feeder which are orthogonally arranged.
The beneficial effects of the above preferred scheme are: the metamaterial antenna is orthogonally fed into a first port microstrip line feeder and a second port microstrip line feeder which are orthogonally arranged, two horizontal orthogonal polarization modes of the metamaterial antenna are excited, and meanwhile, good isolation exists between the two horizontal polarization modes; and the antenna and the bottom substrate with the cross slotted slot form an orthogonal slot coupling feed structure to excite the antenna to perform resonant radiation and broadband operation.
Preferably, the common mode feed structure includes a common mode feed microstrip line disposed on the bottom substrate and a common mode feed capacitor ring structure disposed between the bottom substrate and the external substrate, and the common mode feed microstrip line is connected to the common mode feed capacitor ring structure.
The beneficial effects of the above preferred scheme are: the invention adopts a common-mode in-phase feed microstrip line, simultaneously accesses to two sides of a patch, excites two half-mode antennas with low sections in phase, and forms a vertical polarized horizontal omnidirectional radiation mode.
Preferably, the number of the common mode feeding capacitance type ring structures is 2, and the common mode feeding capacitance type ring structures are respectively located at two opposite sides of the bottom substrate.
The beneficial effects of the above preferred scheme are: the invention applies and carves common mode feed capacitance type ring structures on two sides of the surface of the patch, which can be equivalent to series capacitance, thereby improving impedance matching of a vertical polarization mode.
Drawings
FIG. 1 is a schematic diagram of a miniaturized linearly polarized 5G antenna according to the present invention;
FIG. 2 is a schematic structural diagram of an electromagnetic metamaterial ring resonator in accordance with the present invention;
FIG. 3 is a schematic diagram of an equivalent resonant circuit of the electromagnetic metamaterial ring resonator structure of the present invention;
FIG. 4 is a schematic diagram comparing the bandwidth performance of a miniaturized linearly polarized 5G antenna of the present invention with and without open stub loading;
fig. 5 is a schematic structural diagram of a miniaturized dual-polarized 5G antenna of the present invention;
FIG. 6 is a schematic diagram of a miniaturized circularly polarized 5G antenna according to the present invention;
FIG. 7 is a schematic diagram of a miniaturized triple-polarized 5G antenna according to the present invention;
fig. 8 is a schematic diagram of the bandwidth and isolation performance of the three ports of the miniaturized triple-polarized 5G antenna of the present invention.
Wherein the drawings are illustrated as follows: 1. the surface of the metamaterial patch comprises 2 parts of a short-circuit metal column, 3 parts of a top substrate, 4 parts of a floor layer, 5 parts of a bottom substrate, 6 parts of a microstrip line feeder, 7 parts of a support column, 8 parts of a metal support wall, 9 parts of a common-mode feed microstrip line, 10 parts of a common-mode feed capacitor-type ring structure, 11 parts of a fixing screw.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.
The invention provides a series of miniaturized multi-polarization antennas based on electromagnetic metamaterials in order to solve the problems that a base station antenna applied to a 5G new frequency band and a sub 6GHz scene traditionally have large sizes and single polarization types, and the like, and covers the design of linear polarization, dual polarization, circular polarization and triple polarization antennas, the multi-polarization antennas solve the problems of large filling size, high profile and the like of the traditional base station, and also solve the problems of narrow bandwidth and low radiation efficiency of the antenna in the traditional miniaturized system, so that the requirements of a 5G indoor compact system on the miniaturized wide bandwidth antenna can be met. In addition, the multi-polarization antenna provides selection of various polarization types, solves the problem that the antenna polarization of the current 5G new frequency band transmitting terminal is single, and can be suitable for different requirements of various indoor and outdoor environments on polarization.
The invention provides a novel metamaterial resonator structure based on the basic principle of an electromagnetic metamaterial, which has the characteristic of low loss, can keep higher radiation efficiency and proper working bandwidth while being miniaturized, and is used for the design of a multi-polarization antenna with a 5G new frequency band.
Example 1
As shown in fig. 1, a miniaturized linearly polarized 5G antenna provided by an embodiment of the present invention includes an electromagnetic metamaterial ring resonator structure layer, a floor layer 4, and a short-circuit metal pillar 2 fixedly supporting the electromagnetic metamaterial ring resonator structure layer and the floor layer 4.
The electromagnetic metamaterial ring resonator structure layer comprises a top substrate 3 and a metamaterial patch surface 1 arranged on the top substrate 3, and the metamaterial patch surface 1 is formed by applying an engraved-type gap on the whole metal surface.
Based on the principle of a composite left-right-hand transmission line (CRLH-TL) and a Split Ring Resonator (SRR) in an electromagnetic metamaterial, the left-hand short-circuit inductance is increased on a Mushroom structure in the traditional metamaterial, two orthogonal capacitance type gaps in the transverse direction and the longitudinal direction are formed, and a left-hand capacitor is connected in series to form a novel electromagnetic metamaterial resonator structure, namely a ring resonator (RTR), as shown in figure 2, a negative first-order resonance mode is excited by utilizing a pi-type metamaterial transmission line structure, and the impedance, the surface field distribution and the radiation characteristic which are similar to those of the traditional positive first-order mode are realized while the miniaturization design is realized.
In order to simplify analysis and design, the right-hand capacitance and the right-hand inductance with small numerical influence are ignored to form an electromagnetic super-resonance structure, and an equivalent resonance circuit of the electromagnetic super-resonance structure is shown in FIG. 3. The left-hand inductor is increased by outwards moving the short-circuit inductor, so that the miniaturization is further realized; through the loading of the double-slit left-handed capacitor, the surface electric field is further dispersed, so that the radiation aperture of the antenna is increased, and the radiation gain and efficiency are improved.
The novel electromagnetic metamaterial structure-ring resonator structure adopts a low-loss metamaterial structure and a multi-capacitor loaded surface structure, so that the dielectric loss is reduced, the radiation aperture area of an antenna is expanded, the miniaturization is realized, the higher radiation efficiency and the proper working bandwidth are kept, and the metamaterial resonator structure is used for designing a multi-polarization antenna with a 5G new frequency band; and the short-circuit metal screw is adopted for supporting and a small quantity of PCB substrates, so that the dielectric loss is reduced as much as possible, the high radiation efficiency is kept, and the cost is low.
The floor layer 4 includes a base substrate 5 having a strip-shaped slot slit and a microstrip line feeder 6 provided on the base substrate 5. The microstrip line feeder 6 and the bottom substrate 5 form a gap coupling feed structure to excite the antenna to perform resonant radiation and broadband operation. An open-circuit branch structure is loaded in the microstrip line feeder 6 in series, which is equivalent to a series connection of a first-order low-pass filtering response, and a new resonance mode is introduced, so that double resonance points are formed, the working bandwidth is effectively widened, and the bandwidth requirement of a 5G new frequency band is met. As shown in fig. 4, after the linearly polarized antenna is loaded with the open-circuit stub in series, a new resonance mode is introduced to couple with the initial electromagnetic super-resonator mode to form a double resonance point, thereby effectively expanding the bandwidth of the antenna, covering the bandwidth of the 5G-N78 frequency band, and meeting the application requirement of the 5G new frequency band.
The top substrate 3 and the bottom substrate 5 are fixedly supported and short-circuit inductance loading operation is carried out through the short-circuit metal column 2 by specifically adopting a short-circuit metal screw, so that an electromagnetic metamaterial ring resonator structure is constructed, and the miniaturization of the antenna is realized by controlling the size and the position of the surface of a metamaterial patch and the size and the position of a screw. The antenna of the invention adopts a small amount of thin-layer dielectric substrate processing and standard system metal screw fixation, thereby reducing dielectric loss as much as possible, maintaining high radiation efficiency, being easy to assemble and produce and having low cost.
Example 2
As shown in fig. 5, the embodiment of the present invention further provides a miniaturized dual-polarized 5G antenna, the structure of which is similar to that of the linearly polarized 5G antenna in embodiment 1, except that the floor layer 4 of the dual-polarized 5G antenna includes an underlying substrate 5 having a cross-shaped slot and a microstrip line feed line 6 disposed on the underlying substrate 5.
The microstrip line feeder 6 specifically includes a first microstrip line feeder and a second microstrip line feeder which are orthogonally arranged. The first microstrip line feeder line and the second microstrip line feeder line and the bottom substrate 5 form an orthogonal gap coupling feed structure to excite the antenna to perform resonant radiation and broadband work.
The first microstrip line feeder line and the second microstrip line feeder line are respectively and orthogonally fed into the metamaterial antenna to generate dual-polarized radiation.
Example 3
As shown in fig. 6, an embodiment of the present invention further provides a miniaturized circularly polarized 5G antenna, where the circularly polarized 5G antenna has a structure similar to that of the linearly polarized 5G antenna in embodiment 1 or the dual polarized 5G antenna in embodiment 2, except that the patch center of the meta-material patch surface 1 of the circularly polarized 5G antenna is grooved, and the floor layer 4 includes a bottom substrate 5 having a cross-shaped grooved slot and a microstrip line feed line 6 disposed on the bottom substrate 5. The microstrip line feeder 6 and the bottom substrate 5 form an orthogonal slot coupling feed structure to excite the antenna to perform resonant radiation and broadband operation.
The metamaterial patch surface 1 of the electromagnetic metamaterial ring resonator structure layer is formed by applying capacitance-carving type gaps on the whole metal surface, and the centers of all patches are grooved, so that equivalent inductance can be regulated, increased and further miniaturization is achieved.
The microstrip line feeder line 6 is specifically fed into the electromagnetic metamaterial ring resonator structure layer at an angle of 45 degrees, so that two orthogonal super resonator modes can be excited, circularly polarized radiation is generated, and the working bandwidth of the antenna is expanded.
The two-dimensional novel electromagnetic metamaterial ring resonator structure is adopted, and the miniaturized linear polarization, dual polarization and circularly polarized radiation design is realized through proper coupling feed excitation or other coaxial back feed and differential feed modes.
Example 4
As shown in fig. 7, a miniaturized triple-polarized 5G antenna provided in an embodiment of the present invention has a structure similar to that of the dual-polarized 5G antenna in embodiment 2, and is different from the dual-polarized 5G antenna in that an electromagnetic metamaterial ring resonator structure layer of the triple-polarized 5G antenna includes a top substrate 5, a metamaterial patch surface 1 and a metal supporting wall 8, the top substrate 5 is divided into an inner substrate and an outer substrate by a ring-shaped hollow slot, the inner substrate and a floor layer 4 are fixedly supported by a short-circuited metal pillar 2, an inner side of the outer substrate and the floor layer 4 are fixedly supported by the metal supporting wall 8, the metamaterial patch surface 1 is disposed on the inner substrate, and the metamaterial patch surface 1 is formed by applying an engraved-type gap on the metal surface; the floor layer 4 includes a base substrate 5 having a cross-shaped slot, and a microstrip line feeder 6 and a common mode feeder structure provided on the base substrate 5.
The microstrip line feeder 6 specifically includes a first microstrip line feeder and a second microstrip line feeder which are orthogonally arranged.
The common-mode feeding structure comprises a common-mode feeding microstrip line 9 arranged on the bottom substrate 5 and a common-mode feeding capacitor type ring structure 10 arranged between the bottom substrate 5 and an external substrate, wherein the common-mode feeding microstrip line 9 is connected with the common-mode feeding capacitor type ring structure 10. Specifically, the number of the common mode feeding capacitor type ring structures 10 is 2, and the common mode feeding capacitor type ring structures are respectively located on two opposite sides of the bottom substrate.
The invention utilizes the square metal supporting wall 8 to connect the floor layer 4 with the metal layer on the top surface of the external substrate, separates the horizontal dual polarization mode from the vertical polarization mode, obtains good port isolation degree, and simultaneously realizes the low-profile design of the vertical polarization.
The invention utilizes the orthogonal first microstrip line feeder and the orthogonal second microstrip line feeder on the floor layer 4 to feed through the gap coupling, so as to excite two horizontal orthogonal polarization modes of the super-resonant antenna. The common-mode feed microstrip line 9 and the common-mode feed capacitor-type ring structure 10 on the floor layer 4 excite the two sides of the surface 1 of the metamaterial in the same amplitude and phase mode to form a low-profile vertical polarization mode.
In the design of the tri-polarized antenna, the middle part of the patch is isolated by utilizing the square metal supporting wall 8, and the dual-polarized antenna based on the metamaterial is embedded into the tri-polarized antenna. A common-mode in-phase feed microstrip line 9 is adopted and simultaneously connected to two sides of the patch, and two half-mode antennas with low sections are excited in phase to form a vertical-polarization horizontal omnidirectional radiation mode. In addition, common-mode feed capacitance type ring structures 10 are coated and engraved on two sides of the surface 1 of the metamaterial patch, and are equivalent to series capacitors, so that impedance matching of a vertical polarization mode can be improved. The low-profile design of the triple-polarized antenna mainly derives from the integration of a miniaturized horizontal dual-polarized antenna and a low-profile in-phase excitation patch. The bandwidth performance of three polarization modes of the triple-polarization antenna meets the bandwidth requirement of a 5G new frequency band. As shown in fig. 8, the working bandwidths of the three ports of the triple-polarized antenna can all cover the 5G-N78 frequency band, the isolation between the three ports is greater than 15dB, the working bandwidth of the triple-polarized antenna is wide under the condition of keeping the characteristics of small size and low profile, and the indoor application requirements of the 5G new frequency band are met.
The series of multi-polarization antennas have the advantages of miniaturization and low profile, and are suitable for micro base stations; the working bandwidth of the antenna is wide, and the antenna can cover 5G new frequency bands such as N78 and the like; the antenna has high radiation efficiency (80%) and good radiation performance; the antenna has wide half-power wave beam width and large communication coverage range, and is suitable for indoor wide-angle communication; the antenna has low cost, is easy to assemble and is suitable for batch production; the antenna covers linear polarization, dual polarization, circular polarization and triple polarization forms, and can meet the communication requirements of various different application scenes.
The principle and the implementation mode of the invention are explained by applying specific embodiments in the invention, and the description of the embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
It will be appreciated by those of ordinary skill in the art that the embodiments described herein are intended to assist the reader in understanding the principles of the invention and are to be construed as being without limitation to such specifically recited embodiments and examples. Those skilled in the art can make various other specific changes and combinations based on the teachings of the present invention without departing from the spirit of the invention, and these changes and combinations are within the scope of the invention.
Claims (9)
1. A miniaturized linearly polarized 5G antenna is characterized by comprising an electromagnetic metamaterial ring resonator structure layer, a floor layer (4) and a short circuit metal column (2) for fixedly supporting the electromagnetic metamaterial ring resonator structure layer and the floor layer (4);
the electromagnetic metamaterial ring resonator structure layer comprises a top-layer substrate (3) and a metamaterial patch surface (1) arranged on the top-layer substrate (3), wherein the metamaterial patch surface (1) is formed by applying and engraving a capacitive gap on a metal surface;
the floor layer (4) comprises a bottom substrate (5) with a strip-shaped slotted gap and a microstrip line feeder (6) which forms a gap coupling feed structure with the bottom substrate (5).
2. A miniaturized dual-polarized 5G antenna is characterized by comprising an electromagnetic metamaterial ring resonator structure layer, a floor layer (4) and a short circuit metal column (5) for fixedly supporting the electromagnetic metamaterial ring resonator structure layer and the floor layer (4);
the electromagnetic metamaterial ring resonator structure layer comprises a top-layer substrate (3) and a metamaterial patch surface (1) arranged on the top-layer substrate (3), wherein the metamaterial patch surface (1) is formed by applying and engraving a capacitive gap on a metal surface;
the floor layer (4) comprises a bottom substrate (5) with a cross slotted gap and a microstrip line feeder (6) which forms an orthogonal gap coupling feed structure with the bottom substrate (5).
3. The miniaturized dual polarized 5G antenna according to claim 2, characterized in that the microstrip line feed line (6) comprises in particular a first port microstrip line feed line and a second port microstrip line feed line in an orthogonal arrangement.
4. A miniaturized circularly polarized 5G antenna is characterized by comprising an electromagnetic metamaterial ring resonator structure layer, a floor layer (4) and a short circuit metal column (5) for fixedly supporting the electromagnetic metamaterial ring resonator structure layer and the floor layer (4);
the electromagnetic metamaterial ring resonator structure layer comprises a top-layer substrate (3) and a metamaterial patch surface (1) arranged on the top-layer substrate (3), wherein the metamaterial patch surface (1) is formed by applying a capacity-etched gap on a metal surface, and a groove is formed in the center of a patch;
the floor layer (4) comprises a bottom substrate (5) with a cross slotted gap and a microstrip line feeder (6) which forms an orthogonal gap coupling feed structure with the bottom substrate (5).
5. The miniaturized circularly polarized 5G antenna according to claim 4, characterized in that the microstrip feed line (6) feeds the structural layer of the electromagnetic metamaterial ring resonator in particular at 45 °.
6. A miniaturized triple-polarized 5G antenna is characterized by comprising an electromagnetic metamaterial ring resonator structure layer, a floor layer (4) and a support column (7) for fixedly supporting the electromagnetic metamaterial ring resonator structure layer and the floor layer (4);
the electromagnetic metamaterial ring resonator structure layer comprises a top substrate (3), a metamaterial surface (1) and a metal supporting wall (8), the top substrate (3) is divided into an inner substrate and an outer substrate by a ring-shaped empty groove, the inner substrate and a floor layer (4) are fixedly supported through a short-circuit metal column (2), the inner side of the outer substrate and the floor layer (4) are fixedly supported through the metal supporting wall (8), the metamaterial surface (1) is arranged on the inner substrate, and the metamaterial surface (1) is formed by applying an engraved gap on the metal surface;
the floor layer (4) comprises a bottom substrate (5) with a cross slotted gap, and a microstrip line feeder (6) and a common mode feeder structure which form an orthogonal gap coupling feeder structure with the bottom substrate (5).
7. The miniaturized, tri-polarized 5G antenna according to claim 6, characterized in that the microstrip feed line (6) comprises in particular a first port microstrip feed line and a second port microstrip feed line in an orthogonal arrangement.
8. The miniaturized, tri-polarized 5G antenna of claim 6 or 7, characterized in that the common-mode feed structure comprises a common-mode feed microstrip line (9) disposed on the base substrate (5) and a common-mode feed capacitive ring structure (10) disposed between the base substrate (5) and an external substrate, the common-mode feed microstrip line (9) being connected to the common-mode feed capacitive ring structure (10).
9. The miniaturized, tri-polarized 5G antenna of claim 8, wherein the common-mode feeding capacitive ring structures (10) are arranged in 2 and located on two opposite sides of the base substrate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010974332.5A CN112054301B (en) | 2020-09-16 | 2020-09-16 | Miniaturized linear polarization, dual polarization, circular polarization and three-polarization 5G antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010974332.5A CN112054301B (en) | 2020-09-16 | 2020-09-16 | Miniaturized linear polarization, dual polarization, circular polarization and three-polarization 5G antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112054301A true CN112054301A (en) | 2020-12-08 |
| CN112054301B CN112054301B (en) | 2024-01-30 |
Family
ID=73604482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010974332.5A Active CN112054301B (en) | 2020-09-16 | 2020-09-16 | Miniaturized linear polarization, dual polarization, circular polarization and three-polarization 5G antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112054301B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113178693A (en) * | 2021-05-13 | 2021-07-27 | 上海大学 | Circular polarization small antenna with inverted mushroom nail structure |
| CN113690600A (en) * | 2021-08-16 | 2021-11-23 | 电子科技大学 | Dual-polarized omnidirectional super-surface antenna |
| CN114784502A (en) * | 2022-06-22 | 2022-07-22 | 成都空间矩阵科技有限公司 | Millimeter wave quadrupole electromagnetic dipole antenna |
| CN115084873A (en) * | 2022-03-08 | 2022-09-20 | 电子科技大学 | Dual-polarization 1-bit antenna based on electromagnetic metamaterial and digital bit array |
| CN115117631A (en) * | 2022-06-15 | 2022-09-27 | 西安电子科技大学 | Horizontal polarization broadband filtering omnidirectional loop antenna |
| CN115117612A (en) * | 2022-06-10 | 2022-09-27 | 中车长春轨道客车股份有限公司 | Broadband millimeter wave magnetic electric dipole antenna based on SIW feed |
| CN117594969A (en) * | 2024-01-19 | 2024-02-23 | 微网优联科技(成都)有限公司 | Novel resonator structure and directional diagram reconfigurable antenna |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080204327A1 (en) * | 2006-08-30 | 2008-08-28 | The Regents Of The University Of California | Compact dual-band resonator using anisotropic metamaterial |
| CN103545602A (en) * | 2013-10-14 | 2014-01-29 | 上海大学 | Ku-band circularly polarized dielectric resonator antenna |
| CN103858277A (en) * | 2013-12-20 | 2014-06-11 | 华为技术有限公司 | Tri-polarization Antenna |
| KR101444017B1 (en) * | 2013-04-02 | 2014-09-23 | 홍익대학교 산학협력단 | Reconfigurable meta metrial antenna for Swichable Polarization |
| CN107834212A (en) * | 2017-10-13 | 2018-03-23 | 南京理工大学 | High-gain high order cavity array antenna based on new super surface |
| CN109273837A (en) * | 2018-09-03 | 2019-01-25 | 北京邮电大学 | A kind of structure for realizing antenna Yu circuit nested encryptions |
| CN109462022A (en) * | 2018-10-11 | 2019-03-12 | 西南交通大学 | A kind of super skin antenna in the broadband of coplanar wave guide feedback |
| CN109888480A (en) * | 2018-10-11 | 2019-06-14 | 南京理工大学 | The super skin antenna of broadband multi-resonant based on aperiodic side's ring structure |
| CN109904613A (en) * | 2019-02-19 | 2019-06-18 | 西安电子科技大学 | A kind of difference dual-band and dual-polarization filter antenna applied to 5G Sub 6GHz base station system |
| CN110534883A (en) * | 2019-07-17 | 2019-12-03 | 天津大学 | Using the broadband low section dual polarized antenna of Based on Dual-Aperture coupling excitation |
| CN110854527A (en) * | 2019-11-07 | 2020-02-28 | 电子科技大学 | Dual-polarized high-performance broadband antenna based on super surface and array thereof |
| CN111082226A (en) * | 2020-01-07 | 2020-04-28 | 电子科技大学 | Subminiature circularly polarized antenna based on electromagnetic super-resonator |
| CN111129749A (en) * | 2018-10-31 | 2020-05-08 | 华为技术有限公司 | Dual-polarized antenna, antenna array and communication equipment |
| CN111430891A (en) * | 2020-03-13 | 2020-07-17 | 华南理工大学 | Broadband low-profile antenna based on polarization correlation super-surface structure |
| CN213184578U (en) * | 2020-09-16 | 2021-05-11 | 南京尤圣美电子科技有限公司 | Miniaturized linear polarization, dual polarization, circular polarization and triple polarization 5G antenna |
-
2020
- 2020-09-16 CN CN202010974332.5A patent/CN112054301B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080204327A1 (en) * | 2006-08-30 | 2008-08-28 | The Regents Of The University Of California | Compact dual-band resonator using anisotropic metamaterial |
| KR101444017B1 (en) * | 2013-04-02 | 2014-09-23 | 홍익대학교 산학협력단 | Reconfigurable meta metrial antenna for Swichable Polarization |
| CN103545602A (en) * | 2013-10-14 | 2014-01-29 | 上海大学 | Ku-band circularly polarized dielectric resonator antenna |
| CN103858277A (en) * | 2013-12-20 | 2014-06-11 | 华为技术有限公司 | Tri-polarization Antenna |
| CN107834212A (en) * | 2017-10-13 | 2018-03-23 | 南京理工大学 | High-gain high order cavity array antenna based on new super surface |
| CN109273837A (en) * | 2018-09-03 | 2019-01-25 | 北京邮电大学 | A kind of structure for realizing antenna Yu circuit nested encryptions |
| CN109462022A (en) * | 2018-10-11 | 2019-03-12 | 西南交通大学 | A kind of super skin antenna in the broadband of coplanar wave guide feedback |
| CN109888480A (en) * | 2018-10-11 | 2019-06-14 | 南京理工大学 | The super skin antenna of broadband multi-resonant based on aperiodic side's ring structure |
| CN111129749A (en) * | 2018-10-31 | 2020-05-08 | 华为技术有限公司 | Dual-polarized antenna, antenna array and communication equipment |
| CN109904613A (en) * | 2019-02-19 | 2019-06-18 | 西安电子科技大学 | A kind of difference dual-band and dual-polarization filter antenna applied to 5G Sub 6GHz base station system |
| CN110534883A (en) * | 2019-07-17 | 2019-12-03 | 天津大学 | Using the broadband low section dual polarized antenna of Based on Dual-Aperture coupling excitation |
| CN110854527A (en) * | 2019-11-07 | 2020-02-28 | 电子科技大学 | Dual-polarized high-performance broadband antenna based on super surface and array thereof |
| CN111082226A (en) * | 2020-01-07 | 2020-04-28 | 电子科技大学 | Subminiature circularly polarized antenna based on electromagnetic super-resonator |
| CN111430891A (en) * | 2020-03-13 | 2020-07-17 | 华南理工大学 | Broadband low-profile antenna based on polarization correlation super-surface structure |
| CN213184578U (en) * | 2020-09-16 | 2021-05-11 | 南京尤圣美电子科技有限公司 | Miniaturized linear polarization, dual polarization, circular polarization and triple polarization 5G antenna |
Non-Patent Citations (5)
| Title |
|---|
| SHAOYU TANG; XING JIANG; XIAOFENG LI: "《Design of dual-circularly polarized antenna with cross slot coupling》", 《2015 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATION PROBLEM-SOLVING (ICCP)》 * |
| 刘双兵;余建立;崔颖;: "基于超表面的双频双圆极化贴片天线设计", 电子元件与材料, no. 08 * |
| 刘松涛;秦顺友;韩国栋;: "基于超材料的低剖面宽带双极化天线设计", 计算机测量与控制, no. 09 * |
| 吴振华: "《三极化电容加载缝隙天线的研究》", 《硕士电子期刊出版信息》 * |
| 李琳;万继响;: "Ku频段双极化缝隙耦合微带天线设计", 电子设计工程, no. 07 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113178693A (en) * | 2021-05-13 | 2021-07-27 | 上海大学 | Circular polarization small antenna with inverted mushroom nail structure |
| CN113690600A (en) * | 2021-08-16 | 2021-11-23 | 电子科技大学 | Dual-polarized omnidirectional super-surface antenna |
| CN115084873A (en) * | 2022-03-08 | 2022-09-20 | 电子科技大学 | Dual-polarization 1-bit antenna based on electromagnetic metamaterial and digital bit array |
| CN115117612A (en) * | 2022-06-10 | 2022-09-27 | 中车长春轨道客车股份有限公司 | Broadband millimeter wave magnetic electric dipole antenna based on SIW feed |
| CN115117631A (en) * | 2022-06-15 | 2022-09-27 | 西安电子科技大学 | Horizontal polarization broadband filtering omnidirectional loop antenna |
| CN115117631B (en) * | 2022-06-15 | 2023-07-14 | 西安电子科技大学 | Horizontal polarization broadband filtering omnidirectional annular antenna |
| CN114784502A (en) * | 2022-06-22 | 2022-07-22 | 成都空间矩阵科技有限公司 | Millimeter wave quadrupole electromagnetic dipole antenna |
| CN117594969A (en) * | 2024-01-19 | 2024-02-23 | 微网优联科技(成都)有限公司 | Novel resonator structure and directional diagram reconfigurable antenna |
| CN117594969B (en) * | 2024-01-19 | 2024-04-02 | 微网优联科技(成都)有限公司 | Novel resonator structure and directional diagram reconfigurable antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112054301B (en) | 2024-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112054301B (en) | Miniaturized linear polarization, dual polarization, circular polarization and three-polarization 5G antenna | |
| US11296418B2 (en) | Low-profile dual-polarization filtering magneto-electric dipole antenna | |
| CN109904609B (en) | Broadband circularly polarized filter antenna | |
| Wang et al. | Compact shared aperture quasi-Yagi antenna with pattern diversity for 5G-NR applications | |
| CN111682309B (en) | Single-layer single-feed back cavity circularly polarized filter antenna | |
| CN110112562B (en) | Small broadband differential excitation dual-mode dual-polarized base station antenna | |
| CN111262021A (en) | Tightly-coupled low-profile ultra-wideband dual-polarized phased array antenna | |
| CN106299690A (en) | A kind of differential feed Broadband circularly polarized antenna | |
| CN110492242B (en) | Ultra-thin half-wall short-circuit circularly polarized top radiation antenna | |
| CN113193371B (en) | Miniaturized high-isolation circularly polarized diversity antenna based on dual-mode resonance | |
| CN102904009A (en) | Small-size broadband wide-beam circular polarization microstrip antenna | |
| CN114709609B (en) | Circularly polarized microstrip antenna of low-profile high-gain wide-axial-ratio beam | |
| CN113497356B (en) | Dual-band dual-polarization filtering antenna | |
| CN213184578U (en) | Miniaturized linear polarization, dual polarization, circular polarization and triple polarization 5G antenna | |
| CN105048079A (en) | Omnidirectional circular polarization plane antenna | |
| CN111478026A (en) | Strip type dielectric patch filter antenna array | |
| CN111628287A (en) | Broadband circularly polarized patch antenna | |
| CN113690599B (en) | Horizontal polarization omnidirectional super-surface antenna | |
| CN110957565B (en) | Broadband polarization reconfigurable high-gain antenna for 5G base station | |
| CN109802225B (en) | Microstrip filter antenna | |
| CN109449582B (en) | Low-profile broadband filtering antenna | |
| CN108448245B (en) | Differential feed dual-frequency planar antenna | |
| CN112003009B (en) | Dielectric resonator antenna with wide axial ratio wave beam | |
| CN115458926A (en) | Ultra-wideband circularly polarized antenna with side surface loaded with vertical hollowed parasitic copper plate | |
| CN113497357B (en) | Broadband dual-polarization filtering antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |