CN114976652A - Ultra-wideband dielectric resonator antenna, antenna module and electronic equipment - Google Patents
Ultra-wideband dielectric resonator antenna, antenna module and electronic equipment Download PDFInfo
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- 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
- H01Q9/0485—Dielectric resonator antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/10—Resonant antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
- H01Q5/25—Ultra-wideband [UWB] systems, e.g. multiple resonance systems; Pulse systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
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- 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
- H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses an ultra-wideband dielectric resonator antenna, an antenna module and electronic equipment, which comprise a first dielectric resonator, a second dielectric resonator and a feed metal rod, wherein the first dielectric resonator is arranged on the first dielectric resonator; the first dielectric resonator is in a circular truncated cone shape, a through groove is axially formed in the first dielectric resonator, and the second dielectric resonator is arranged in the through groove; the second dielectric resonator is provided with an opening matched with the feed metal rod along the axial direction; one end of the feed metal rod penetrates through the opening, and the other end of the feed metal rod protrudes out of the upper bottom surface of the first dielectric resonator; the first dielectric resonator and the second dielectric resonator are ceramic dielectric resonators. The invention can realize super bandwidth and effectively ensure the performance of the antenna.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to an ultra-wideband dielectric resonator antenna, an antenna module and electronic equipment.
Background
5G is the focus of research and development in the world, and 5G standard has become common in the industry by developing 5G technology. The international telecommunications union ITU identified three major application scenarios for 5G at ITU-RWP5D meeting No. 22 held 6 months 2015: enhanced mobile broadband, large-scale machine communication, high-reliability and low-delay communication. The 3 application scenes respectively correspond to different key indexes, wherein the peak speed of a user in an enhanced mobile bandwidth scene is 20Gbps, and the lowest user experience rate is 100 Mbps. The unique high carrier frequency and large bandwidth characteristics of millimeter waves are the main means for realizing 5G ultrahigh data transmission rate. Meanwhile, the space reserved for the 5G antenna in the future mobile phone is small, and the number of selectable positions is small, so that a miniaturized antenna module needs to be designed.
The 3GPP is performing standardization work on 5G technologies, and the first international standard for 5G non-independent Networking (NSA) is formally completed and frozen in 12 months in 2017, and the 5G independent networking standard is completed in 14 days in 6 months in 2018. According to the technical specification of 3GPP TS 38.101-25G terminal radio frequency and the technical report of TR38.817 terminal radio frequency, the 5 GmWave frequency band has n257(26.5-29.5GHz), n258(24.25-27.25GHz), n260(37-40GHz), n261(27.5-28.35GHz) and newly added n259(39.5-43 GHz).
No matter the antenna form of the conventional millimeter wave broadband antenna based on the PCB is Patch (Patch), Dipole (Dipole), slot (slot) and the like, because the bandwidth is required to cover n257, n258 and n260, the thickness of the PCB is increased, the number of layers at the moment is increased, and because in a millimeter frequency band, the precision requirements of the multilayer PCB on hole, line width and line distance are high, and the processing difficulty is high.
The dielectric resonator has the advantages of small loss, high radiation efficiency and the like, and compared with a conventional millimeter wave broadband antenna based on a PCB, the dielectric resonator antenna has the advantages of small volume and low cost. The integration of the dielectric resonator antenna and the PCB generally has two modes, which are gluing and SMT welding. However, in the glue bonding method, the antenna performance is sharply attenuated due to the millimeter-scale change of the thickness of the glue. For the SMT welding mode, metal is plated on the surface of a medium and then the medium is connected with a bonding pad on a PCB, but the feed impedance is changed violently due to uncontrollable welding tin. Therefore, the integration of the dielectric resonator is a problem to be solved.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the ultra-wideband dielectric resonator antenna, the antenna module and the electronic equipment can cover a plurality of frequency bands and realize ultra-wideband.
In order to solve the technical problems, the invention adopts the technical scheme that: an ultra-wideband dielectric resonator antenna comprises a first dielectric resonator, a second dielectric resonator and a feed metal rod; the first dielectric resonator is in a circular truncated cone shape, a through groove is axially formed in the first dielectric resonator, and the second dielectric resonator is arranged in the through groove; the second dielectric resonator is provided with an opening matched with the feed metal rod along the axial direction; one end of the feed metal rod penetrates through the opening, and the other end of the feed metal rod protrudes out of the upper bottom surface of the first dielectric resonator; the first dielectric resonator and the second dielectric resonator are ceramic dielectric resonators.
The invention also provides an ultra-wideband dielectric resonator antenna module, which comprises a dielectric substrate, an antenna ground and at least one ultra-wideband dielectric resonator antenna, wherein the antenna ground is arranged on the dielectric substrate, and the at least one ultra-wideband dielectric resonator antenna is arranged on one surface of the antenna ground far away from the dielectric substrate.
The invention also provides electronic equipment comprising the ultra-wideband dielectric resonator antenna module.
The invention has the beneficial effects that: the second dielectric resonator is arranged in the through groove in the middle of the first dielectric resonator, and one end of the feed metal rod penetrates through the opening in the middle of the second dielectric resonator, so that the feed metal rod can be used as a feed structure to feed the two dielectric resonators; the other end of the feed metal rod protrudes out of the upper bottom surface of the first dielectric resonator, so that the feed metal rod can also be used as a monopole antenna for radiation, and the bandwidth of the antenna is increased; the dielectric resonator antenna formed by the ceramic body is high in machining precision, small in size in a millimeter wave frequency band, low in cost and great in advantages compared with a PCB. The antenna can simultaneously realize the antenna radiation of the dielectric resonator and the monopole antenna radiation by arranging the two nested dielectric resonators and enabling the feed metal rod to be also used as a part of the radiation structure, thereby covering a plurality of frequency bands and realizing ultra-bandwidth.
Drawings
Fig. 1 is a schematic structural diagram of an ultra-wideband dielectric resonator antenna according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of an ultra-wideband dielectric resonator antenna module according to a second embodiment of the present invention;
fig. 3 is a schematic side view of an ultra-wideband dielectric resonator antenna module according to a second embodiment of the present invention;
fig. 4 is a schematic bottom view of an ultra-wideband dielectric resonator antenna module according to a second embodiment of the present invention;
fig. 5 is a schematic diagram of an S parameter of an ultra-wideband dielectric resonator antenna module according to a second embodiment of the present invention.
Description of the reference symbols:
100. an ultra-wideband dielectric resonator antenna;
1. a first dielectric resonator; 2. a second dielectric resonator; 3. a feed metal rod; 4. a dielectric substrate; 5. an antenna ground; 6. a radio frequency chip; 7. a feed line; 8. a pad;
11. a through groove; 21. opening a hole; 41. a first through hole; 51. a second via.
Detailed Description
In order to explain technical contents, objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1, an ultra-wideband dielectric resonator antenna includes a first dielectric resonator, a second dielectric resonator, and a feed metal rod; the first dielectric resonator is in a circular truncated cone shape, a through groove is axially formed in the first dielectric resonator, and the second dielectric resonator is arranged in the through groove; the second dielectric resonator is provided with an opening matched with the feed metal rod along the axial direction; one end of the feed metal rod penetrates through the opening, and the other end of the feed metal rod protrudes out of the upper bottom surface of the first dielectric resonator; the first dielectric resonator and the second dielectric resonator are ceramic dielectric resonators.
As can be seen from the above description, the beneficial effects of the present invention are: the integration of the dielectric resonator and the PCB is realized through the metal feed rod, the antenna performance can be effectively ensured, a plurality of frequency bands can be covered, and the ultra-bandwidth is realized.
Further, the dielectric constant of the second dielectric resonator is smaller than the dielectric constant of the first dielectric resonator.
From the above description, it can be known that when the dielectric constants of the two dielectric resonators are the same, the dual-band can be covered, and when the dielectric constants of the inner and outer dielectric resonators are gradually changed, the multi-band can be covered, thereby realizing the super-bandwidth.
Furthermore, the through groove is cylindrical, a central axis of the through groove is overlapped with an axis of the first dielectric resonator, and the size of the bottom surface of the through groove is the same as that of the upper bottom surface of the first dielectric resonator; the second dielectric resonator is in a cylindrical shape, the central axis of the second dielectric resonator is overlapped with the axis of the first dielectric resonator, and the opening is located at the central axis of the second dielectric resonator.
Further, the height of the first dielectric resonator is the same as the height of the second dielectric resonator.
As can be seen from the above description, the fixing stability between the two dielectric resonators and between the feed metal rod and the dielectric resonator is ensured.
Further, the radius of the upper bottom surface of the first dielectric resonator is 0.073 λ, the radius of the lower bottom surface of the first dielectric resonator is 0.2 λ, and the height of the first dielectric resonator is 0.22 λ; the radius of the feed metal rod is 0.02 lambda, and the height of the feed metal rod is 0.418 lambda; λ is the wavelength length corresponding to the center frequency of the working frequency band.
As can be seen from the above description, the antenna can be made to cover the 5G millimeter wave band by adjusting the size.
The invention also provides an ultra-wideband dielectric resonator antenna module, which comprises a dielectric substrate, an antenna ground and at least one ultra-wideband dielectric resonator antenna, wherein the antenna ground is arranged on the dielectric substrate, and the at least one ultra-wideband dielectric resonator antenna is arranged on one surface of the antenna ground far away from the dielectric substrate.
Furthermore, the number of the ultra-wideband dielectric resonator antennas is four, and the four ultra-wideband dielectric resonator antennas are linearly arranged.
Furthermore, first through holes corresponding to the ultra-wideband dielectric resonator antennas one to one are formed in the dielectric substrate, and second through holes corresponding to the ultra-wideband dielectric resonator antennas one to one are formed in the antenna ground; one end of the feed metal rod sequentially penetrates through the open hole, the second through hole and the first through hole and is respectively and tightly connected with the second dielectric resonator and the dielectric substrate; the second dielectric resonator is closely connected with the first dielectric resonator.
As can be seen from the above description, the integration between the dielectric resonator and the dielectric substrate is realized by the feeding metal rod, so that the feeding metal rod can also play a role of fixing the dielectric resonator while being a part of the feeding structure and a part of the radiating structure.
The radio frequency chip and the feeder lines are arranged on one surface, far away from the ultra-wideband dielectric resonator antennas, of the dielectric substrate, one end of each feeder line is connected with one end of each feed metal rod, and the other end of each feeder line is connected with the radio frequency chip.
As can be seen from the above description, the rf chip is used to provide signals to the antenna.
The bonding pads are arranged on one surface of the dielectric substrate, which is far away from the ultra-wideband dielectric resonator antenna, and are connected with one end of the feed metal rod; the tail end of one end of the feeder line is annular and is sleeved with the welding disc.
As can be seen from the above description, by providing the bonding pad, the connection reliability between the feed metal rod and the dielectric substrate can be further ensured; the tail end of one end of the feeder line, which is connected with the feed metal rod, is provided with a ring matched with the pad, so that the feeder line can be fully contacted with the pad, and the connection reliability between the feeder line and the feed metal rod is ensured.
The invention also provides electronic equipment which comprises the ultra-wideband dielectric resonator antenna module.
Example one
Referring to fig. 1, a first embodiment of the present invention is: an ultra-wideband dielectric resonator antenna can cover a 5G millimeter wave frequency band.
As shown in fig. 1, includes a first dielectric resonator 1, a second dielectric resonator 2, and a feed metal rod 3. The first dielectric resonator 1 is in a circular truncated cone shape, and is provided with a through groove 11 along the axial direction. In this embodiment, the through groove 11 is cylindrical, a central axis of the through groove 11 coincides with an axis of the first dielectric resonator 1, and a bottom surface of the through groove 11 has the same size as an upper bottom surface of the first dielectric resonator 1, that is, a through groove penetrating through the circular truncated cone is axially formed from the upper bottom surface of the circular truncated cone.
The second dielectric resonator 2 is disposed in the through groove 11, and an opening 21 adapted to the feed metal rod 3 is axially disposed. In this embodiment, the second dielectric resonator 2 is cylindrical, and the second dielectric resonator 2 is adapted to the through groove 11, so that the second dielectric resonator 2 and the first dielectric resonator 1 can be tightly connected, and further, the height of the second dielectric resonator 2 is the same as that of the first dielectric resonator 1; meanwhile, the central axis of the second dielectric resonator 2 coincides with the axis of the first dielectric resonator 1, and the opening 21 is located at the central axis of the second dielectric resonator 2, that is, the opening 21 penetrating through the second dielectric resonator 2 and adapted to the feed metal rod 3 is formed at the central axis of the second dielectric resonator 2.
One end of the feed metal rod 3 passes through the opening 21, and the other end protrudes from the upper bottom surface of the first dielectric resonator 1.
Among them, the first dielectric resonator 1 and the second dielectric resonator 2 may employ a ceramic dielectric resonator. The dielectric resonator antenna formed by the ceramic body is high in processing precision, small in size in a millimeter wave frequency band, low in cost and great in advantages compared with a PCB.
Further, the dielectric constant of the second dielectric resonator 2 is smaller than that of the first dielectric resonator 1. In this embodiment, the dielectric constant of the first dielectric resonator 1 is 10, and the dielectric constant of the second dielectric resonator 2 is less than 2. When the dielectric constants of the two dielectric resonators are the same, the dual-band resonator can cover the dual-band resonator, and when the dielectric constants of the inner dielectric resonator and the outer dielectric resonator are gradually changed, the multi-band resonator can cover the multi-band resonator, so that the super-bandwidth is realized.
Further, the radius of the upper bottom surface of the first dielectric resonator 1 is 0.073 λ, the radius of the lower bottom surface is 0.2 λ, and the height is 0.22 λ; the radius of the feed metal rod 3 is 0.02 lambda, and the height is 0.418 lambda; wherein λ is a wavelength length corresponding to a center frequency of the working frequency band.
In this embodiment, the central frequency of the working frequency band is 30GHz, and the corresponding wavelength length is 10mm, then the radius of the upper bottom surface of the first dielectric resonator is 0.73mm, the radius of the lower bottom surface is 2mm, and the height is 2.2 mm; the radius of the feed metal rod is 0.2mm, and the height is 4.18 mm.
In the embodiment, the second dielectric resonator is arranged in the through groove in the middle of the first dielectric resonator, and the feed metal rod penetrates through the opening in the middle of the second dielectric resonator, so that the feed metal rod can feed the two dielectric resonators; meanwhile, the other end of the feed metal rod protrudes out of the first dielectric resonator, so that the feed metal rod can also be used as a monopole antenna to radiate, the radiation mode of the antenna is a mixed mode (the radiation mode of the dielectric resonator antenna and the radiation mode of the monopole antenna), the bandwidth of the antenna can be increased, and the ultra-bandwidth is realized. In addition, the antenna of the embodiment has a wide bandwidth under 50 ohm impedance, so that a matching network is not needed.
Example two
Referring to fig. 2-5, the second embodiment of the present invention is: an ultra-wideband dielectric resonator antenna module is suitable for handheld equipment of a 5G millimeter wave communication system.
As shown in fig. 2, the antenna comprises a dielectric substrate 4, an antenna ground 5 and at least one ultra-wideband dielectric resonator antenna 100 according to the first embodiment, wherein the antenna ground 5 is disposed on one side of the dielectric substrate 4, and the at least one ultra-wideband dielectric resonator antenna 100 is disposed on one side of the antenna ground 5 away from the dielectric substrate 4.
In this embodiment, a 1 × 4 antenna mode is adopted, that is, one module includes four dielectric resonator antennas, and the four dielectric resonator antennas are linearly arranged.
As shown in fig. 3, the dielectric substrate 4 is provided with first through holes 41 corresponding to the respective uwb dielectric resonator antennas 100 one to one, the antenna ground 5 is provided with second through holes 51 corresponding to the respective uwb dielectric resonator antennas 100 one to one, one end of the feed metal rod 3 sequentially passes through the opening 21 on the second dielectric resonator 2, the second through hole 51 on the antenna ground 5, and the first through hole 41 on the dielectric substrate 4, and the feed metal rod 3 is respectively tightly connected to the second dielectric resonator 2 and the dielectric substrate 4, and a transverse cross-sectional area of the second through hole 51 is larger than a transverse cross-sectional area of the feed metal rod 3, thereby preventing the feed metal rod 3 from being grounded.
The tight connection between the second dielectric resonator and the first dielectric resonator and the tight connection between the second dielectric resonator and the feed metal rod are realized, so that the firm connection between the feed metal rod and the dielectric resonator is realized, meanwhile, the tight connection between the feed metal rod and the dielectric substrate is realized, so that the integration between the dielectric resonator and the dielectric substrate is realized through the feed metal rod, and the feed metal rod can play a role in fixing the dielectric resonator while serving as a part of a feed structure and a part of a radiation structure.
As shown in fig. 3 to 4, the antenna module further includes a radio frequency chip 6 and feeder lines 7 corresponding to the ultra-wideband dielectric resonator antennas 100 one by one, where the radio frequency chip 6 and the feeder lines 7 are disposed on a surface of the dielectric substrate 4 away from the ultra-wideband dielectric resonator antennas 100; one end of the feeder line 7 is connected with one end of the feed metal rod 3, and the other end of the feeder line 7 is connected with the radio frequency chip 6.
Further, the ultra-wideband dielectric resonator antenna further comprises bonding pads 8 corresponding to the ultra-wideband dielectric resonator antennas 100 one to one, the bonding pads 8 are arranged on one surface, away from the ultra-wideband dielectric resonator antennas 100, of the dielectric substrate 4, and the bonding pads 8 are connected with one end of the feed metal rod 3, namely, one end of the feed metal rod 3 sequentially penetrates through the open hole 21, the second through hole 51 and the first through hole 41 and then is connected with the bonding pads 8, so that the connection reliability between the feed metal rod 3 and the dielectric substrate 4 is further ensured.
Further, the end of one end of the feeder line 7 is annular and is sleeved with the pad 8. That is, the tail end of the feeder line 7 connected with the feed metal rod 3 is provided with a ring shape matched with the pad 8, and the feeder line 7 is sleeved on the pad 8, so that the feeder line 7 can be fully contacted with the pad 8, and the connection reliability between the feeder line 7 and the feed metal rod 3 is further ensured.
Furthermore, the ultra-wideband dielectric resonator further comprises a digital circuit integrated chip (not shown in the figure) and a power supply chip (not shown in the figure), wherein the digital circuit integrated chip and the power supply chip are also arranged on the side, away from the ultra-wideband dielectric resonator antenna, of the dielectric substrate, and the digital circuit integrated chip and the power supply chip are respectively and electrically connected with the radio frequency chip.
The radio frequency chip is used for providing signals for the antenna; the radio frequency chip comprises elements such as a phase shifter and an amplifier, wherein the phase shifter is used for providing phase difference among the antenna units to realize the beam scanning capability, and the amplifier is used for compensating the loss of the phase shifter. The digital integrated circuit chip is used for controlling the amplitude and the phase of a signal of the radio frequency chip and is equivalent to a digital switch of circuits such as an amplifier, a low-noise amplifier and the like in the radio frequency chip. And the power supply chip is used for providing power supply for the radio frequency chip.
Fig. 5 is a schematic diagram of S parameters of the antenna module of this embodiment, and it can be seen from the diagram that the S parameters at frequency bands of n257(26.5-29.5GHz), n258(24.25-27.25GHz), n260(37-40GHz), and n261(27.5-28.35GHz) are all less than-10 dB, that is, the antenna module covers n257, n258, n260, and n261, and the coverage frequency band is wide.
In the embodiment, the integration of the dielectric resonator and the PCB is realized through the metal feed rod, so that the performance of the antenna is not rapidly attenuated, and the feed impedance is not severely changed; the metal feed rod is simultaneously used as an integrated part of the dielectric resonator, a part of the feed structure and a part of the antenna radiation structure, so that the antenna performance is effectively ensured, a plurality of frequency bands can be covered, the ultra-bandwidth is realized, and the cost can be saved.
EXAMPLE III
The present embodiment is an integration method of the antenna module of the second embodiment. In this embodiment, the tight connection is achieved by interference fit.
Specifically, the method comprises the following steps:
1. obtaining a PCB (printed circuit board), wherein the PCB comprises an antenna ground and a dielectric substrate which are sequentially stacked, and a second through hole and a first through hole which correspond to each antenna unit are respectively formed in the antenna ground and the dielectric substrate;
2. one end of the feed metal rod sequentially penetrates through the second through hole and the first through hole and is in interference fit with the dielectric substrate, and then a circuit layer is integrated on one surface of the dielectric substrate, which is far away from the antenna ground, namely a bonding pad and a feed line are arranged;
3. the first dielectric resonator is sleeved on the feed metal rod, one surface of the first dielectric resonator, which is close to the antenna ground, is abutted to the antenna ground, at the moment, the feed metal rod is positioned in the through groove of the first dielectric resonator, and then the second dielectric resonator is embedded into a gap between the first dielectric resonator and the feed metal rod, so that the second dielectric resonator is in interference fit with the first dielectric resonator and the feed metal rod.
According to the embodiment, the integration of the dielectric resonator and the PCB can be realized only through the feed metal rod without a glue bonding or welding mode, so that the rapid attenuation of the antenna performance caused by the thickness of the glue and the severe change of the feed impedance caused by welding tin materials are effectively avoided, and the antenna performance can be effectively ensured.
In summary, according to the ultra-wideband dielectric resonator antenna, the antenna module and the electronic device provided by the invention, the second dielectric resonator is arranged in the through groove in the middle of the first dielectric resonator, and the feed metal rod passes through the opening in the middle of the second dielectric resonator, so that the feed metal rod can be used as a feed structure to feed the two dielectric resonators; the other end of the feed metal rod protrudes out of the first dielectric resonator, so that the feed metal rod can also be used as a monopole antenna to radiate, the radiation mode of the antenna is a mixed mode, the bandwidth of the antenna can be increased, and the ultra-bandwidth is realized; the second dielectric resonator is tightly connected with the first dielectric resonator, the second dielectric resonator is tightly connected with the feed metal rod, so that firm connection between the feed metal rod and the dielectric resonators can be realized, and meanwhile, the feed metal rod is tightly connected with the dielectric substrate, so that integration between the dielectric resonators and the dielectric substrate is realized through the feed metal rod, and the feed metal rod can also play a role in fixing the dielectric resonators. The invention realizes the integration of the dielectric resonator and the PCB, the feed of the dielectric resonator and the radiation of the monopole antenna through the metal feed rod, can effectively ensure the performance of the antenna, can cover a plurality of frequency bands, realizes ultra-bandwidth, and has the advantages of easy processing, simple manufacture and low cost.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (11)
1. An ultra-wideband dielectric resonator antenna is characterized by comprising a first dielectric resonator, a second dielectric resonator and a feed metal rod; the first dielectric resonator is in a circular truncated cone shape, a through groove is axially formed in the first dielectric resonator, and the second dielectric resonator is arranged in the through groove; the second dielectric resonator is provided with an opening matched with the feed metal rod along the axial direction; one end of the feed metal rod penetrates through the opening, and the other end of the feed metal rod protrudes out of the upper bottom surface of the first dielectric resonator; the first dielectric resonator and the second dielectric resonator are ceramic dielectric resonators.
2. The ultra-wideband dielectric resonator antenna of claim 1, wherein the dielectric constant of the second dielectric resonator is less than the dielectric constant of the first dielectric resonator.
3. The ultra-wideband dielectric resonator antenna of claim 1, wherein the through-slot is cylindrical, a central axis of the through-slot coincides with an axis of the first dielectric resonator, and a bottom surface of the through-slot has a size same as that of an upper bottom surface of the first dielectric resonator; the second dielectric resonator is in a cylindrical shape, the central axis of the second dielectric resonator is overlapped with the axis of the first dielectric resonator, and the opening is located at the central axis of the second dielectric resonator.
4. The ultra-wideband dielectric resonator antenna of claim 1, wherein the height of the first dielectric resonator and the height of the second dielectric resonator are the same.
5. The ultra-wideband dielectric resonator antenna of claim 1, wherein the radius of the upper bottom surface of the first dielectric resonator is 0.073 λ and the radius of the lower bottom surface of the first dielectric resonator is 0.2 λ, and the height of the first dielectric resonator is 0.22 λ; the radius of the feed metal rod is 0.02 lambda, and the height of the feed metal rod is 0.418 lambda; λ is the wavelength length corresponding to the center frequency of the working frequency band.
6. An ultra-wideband dielectric resonator antenna module, comprising a dielectric substrate, an antenna ground and at least one ultra-wideband dielectric resonator antenna as claimed in any one of claims 1 to 5, wherein the antenna ground is disposed on the dielectric substrate, and the at least one ultra-wideband dielectric resonator antenna is disposed on a side of the antenna ground away from the dielectric substrate.
7. The ultra-wideband dielectric resonator antenna module of claim 6, wherein the number of the ultra-wideband dielectric resonator antennas is four, and the four ultra-wideband dielectric resonator antennas are arranged linearly.
8. The ultra-wideband dielectric resonator antenna module of claim 6, wherein the dielectric substrate is provided with first through holes corresponding to the ultra-wideband dielectric resonator antennas one by one, and the antenna ground is provided with second through holes corresponding to the ultra-wideband dielectric resonator antennas one by one; one end of the feed metal rod sequentially penetrates through the open hole, the second through hole and the first through hole and is respectively and tightly connected with the second dielectric resonator and the dielectric substrate; the second dielectric resonator is closely connected with the first dielectric resonator.
9. The ultra-wideband dielectric resonator antenna module of claim 8, further comprising a radio frequency chip and a feeder line corresponding to each ultra-wideband dielectric resonator antenna one to one, wherein the radio frequency chip and the feeder line are disposed on a surface of the dielectric substrate away from the ultra-wideband dielectric resonator antenna, one end of the feeder line is connected to one end of the feed metal rod, and the other end of the feeder line is connected to the radio frequency chip.
10. The ultra-wideband dielectric resonator antenna module of claim 9, further comprising a pad corresponding to each ultra-wideband dielectric resonator antenna, wherein the pad is disposed on a surface of the dielectric substrate away from the ultra-wideband dielectric resonator antenna, and the pad is connected to one end of the feed metal rod; the tail end of one end of the feeder line is annular and is sleeved with the welding disc.
11. An electronic device comprising the ultra-wideband dielectric resonator antenna module of any of claims 6-10.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6344833B1 (en) * | 1999-04-02 | 2002-02-05 | Qualcomm Inc. | Adjusted directivity dielectric resonator antenna |
| JP2004201018A (en) * | 2002-12-18 | 2004-07-15 | Toyota Central Res & Dev Lab Inc | Dielectric resonator composite antenna |
| CA2435830A1 (en) * | 2003-07-22 | 2005-01-22 | Communications Research Centre Canada | Ultra wideband antenna |
| US20080042903A1 (en) * | 2006-08-15 | 2008-02-21 | Dajun Cheng | Multi-band dielectric resonator antenna |
| EP2737575A1 (en) * | 2011-07-29 | 2014-06-04 | University of Saskatchewan | Polymer-based resonator antennas |
| US20190214732A1 (en) * | 2018-01-08 | 2019-07-11 | City University Of Hong Kong | Dielectric resonator antenna |
| CN112002965A (en) * | 2020-07-28 | 2020-11-27 | 北京邮电大学 | Surface wave transmission device |
| CN113193355A (en) * | 2021-03-19 | 2021-07-30 | 深圳市信维通信股份有限公司 | Dual-frequency dual-polarization dielectric resonant antenna for 5G communication and mobile terminal equipment |
| CN113471705A (en) * | 2021-07-26 | 2021-10-01 | 东莞理工学院 | Grounded metal column coupled dielectric resonator antenna |
| CN215644981U (en) * | 2021-05-27 | 2022-01-25 | 深圳市信维通信股份有限公司 | Millimeter wave dielectric resonator antenna module and communication equipment |
| CN114284737A (en) * | 2021-12-31 | 2022-04-05 | 湖南大学 | Full-transparent ultra-wideband high-gain liquid medium resonator antenna |
| CN217788796U (en) * | 2022-04-26 | 2022-11-11 | 深圳市信维通信股份有限公司 | Ultra-wideband dielectric resonator antenna, antenna module and electronic equipment |
-
2022
- 2022-04-26 CN CN202210447517.XA patent/CN114976652B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6344833B1 (en) * | 1999-04-02 | 2002-02-05 | Qualcomm Inc. | Adjusted directivity dielectric resonator antenna |
| JP2004201018A (en) * | 2002-12-18 | 2004-07-15 | Toyota Central Res & Dev Lab Inc | Dielectric resonator composite antenna |
| CA2435830A1 (en) * | 2003-07-22 | 2005-01-22 | Communications Research Centre Canada | Ultra wideband antenna |
| US20080042903A1 (en) * | 2006-08-15 | 2008-02-21 | Dajun Cheng | Multi-band dielectric resonator antenna |
| EP2737575A1 (en) * | 2011-07-29 | 2014-06-04 | University of Saskatchewan | Polymer-based resonator antennas |
| US20190214732A1 (en) * | 2018-01-08 | 2019-07-11 | City University Of Hong Kong | Dielectric resonator antenna |
| CN112002965A (en) * | 2020-07-28 | 2020-11-27 | 北京邮电大学 | Surface wave transmission device |
| CN113193355A (en) * | 2021-03-19 | 2021-07-30 | 深圳市信维通信股份有限公司 | Dual-frequency dual-polarization dielectric resonant antenna for 5G communication and mobile terminal equipment |
| CN215644981U (en) * | 2021-05-27 | 2022-01-25 | 深圳市信维通信股份有限公司 | Millimeter wave dielectric resonator antenna module and communication equipment |
| CN113471705A (en) * | 2021-07-26 | 2021-10-01 | 东莞理工学院 | Grounded metal column coupled dielectric resonator antenna |
| CN114284737A (en) * | 2021-12-31 | 2022-04-05 | 湖南大学 | Full-transparent ultra-wideband high-gain liquid medium resonator antenna |
| CN217788796U (en) * | 2022-04-26 | 2022-11-11 | 深圳市信维通信股份有限公司 | Ultra-wideband dielectric resonator antenna, antenna module and electronic equipment |
Non-Patent Citations (3)
| Title |
|---|
| ZHEN-XING XIA ET AL: ""3-D-Printed wideband multi-ring dielectric resonator antenna"", 《IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS》, vol. 18, no. 10, pages 2110 - 2114, XP011749081, DOI: 10.1109/LAWP.2019.2938009 * |
| 薛敬宏等: ""一种宽带棱台形介质谐振器天线的设计与研究"", 《航空兵器》, no. 6, pages 72 - 77 * |
| 马中华等: ""基于矩形缝隙环谐振器的无芯片标签设计"", 《华南理工大学学报（自然科学版）》, no. 1, pages 59 - 65 * |
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| CN114976652B (en) | 2024-03-19 |
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