CN107257018B - Low frequency radiating element and multifrequency antenna with the low frequency radiating element - Google Patents
Low frequency radiating element and multifrequency antenna with the low frequency radiating element Download PDFInfo
- Publication number
- CN107257018B CN107257018B CN201710419572.7A CN201710419572A CN107257018B CN 107257018 B CN107257018 B CN 107257018B CN 201710419572 A CN201710419572 A CN 201710419572A CN 107257018 B CN107257018 B CN 107257018B
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- radiating element
- frequency radiating
- low frequency
- long
- hole
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- 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
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
-
- 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
-
- 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
- H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
- H01Q5/45—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements using two or more feeds in association with a common reflecting, diffracting or refracting device
- H01Q5/47—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements using two or more feeds in association with a common reflecting, diffracting or refracting device with a coaxial arrangement of the feeds
Abstract
The present invention relates to a kind of low frequency radiating element and with the multifrequency antenna of the low frequency radiating element, belong to the technical field of antenna of mobile communication base station technology.The low frequency radiating element of the present invention, including orthogonal four radiation arms, two filtering minor matters are each formed in each radiation arm, each filtering minor matters include the long through-hole slot extended along the length direction of radiation arm, and the short through-hole groove in an end of long through-hole slot is set, short through-hole groove is vertical with long through-hole slot and short through-hole groove extends outwardly along the width direction of radiation arm.The low frequency radiating element of the present invention has good electric property and radiance, can reduce interference of the low frequency radiating element in multifrequency antenna array to high frequency radiating element with filtering minor matters, effective to improve antenna house radiance index；And preparation process is relatively simple, has preferable market application prospect.
Description
Technical field
The present invention relates to the technical fields of antenna of mobile communication base station technology, it is more particularly related to a kind of low
Radio-frequency radiation unit and multifrequency antenna with the low frequency radiating element.
Background technology
With the development of mobile communication technology, Modern Communication System is to the indices of antenna for base station, especially gain, band
Wide characteristic, space mutual coupling, processing technology etc. propose increasingly higher demands.And it is current, include the wideband multiterminal of multifrequency
Mouth antenna for base station becomes the development trend of communication system.Broadband, the electric property of multi-port antenna receive operator in recent years
It is paid close attention to equipment vendor.
It includes multiple antennas for being operable with different frequency range that multifrequency antenna, which refers in same antenna array,.In limited peace
The antenna of the multiple and different frequency ranges of spatial arrangement is filled often due to stronger electromagnetic coupling makes the electric property of each array, such as level
The significant decreases such as beam angle, voltage standing wave ratio.In the prior art, usually only individually consider the electrical resistance of high frequency or low frequency
Can, it is debugged in actual use, mainly uses following several implementations at present：The first, adjust low-and high-frequency unit it
Between spacing；Second, using in harness array format；The third, raises high frequency unit；Setting open circuit minor matters etc., but adopt
It is often difficult to solve multifrequency mutual coupling and wideband mutual coupling with above-mentioned means.
Invention content
In order to solve above-mentioned technical problem in the prior art, the purpose of the present invention is to provide a kind of low frequency radiating elements
And the multifrequency antenna with the low frequency radiating element.
In order to solve to invent the technical problem and realize goal of the invention, the first aspect of the present invention uses following skill
Art scheme：
A kind of low frequency radiating element, including orthogonal four radiation arms, it is characterised in that：In each radiation arm
Two filtering minor matters are each formed with, each filtering minor matters include the long through-hole extended along the length direction of the radiation arm
Slot, and the short through-hole groove in an end of the long through-hole slot is set, the short through-hole groove is vertical with the long through-hole slot
And the short through-hole groove extends outwardly along the width direction of the radiation arm.
Wherein, it is formed with wave structure on the side wall of the long through-hole slot.
Wherein, the length of the long through-hole slot is 5~50 times, preferably 8~30 times of the short through-hole slot length.
Wherein, the two filtering minor matters are mutually parallel.
Wherein, every long through-hole slot is divided into two cross-talk through-hole grooves, and the two cross-talks through-hole groove is not connected to and mutual
Short through-hole groove is provided on separate both ends.
Wherein, the radiation arm is made of sheet metal.The sheet metal is by systems such as copper, aluminium, copper alloy or aluminium alloys
At.
Wherein, the radiation arm is by PTFE plates, and is coated on the metal foil composition of the PTFE plate surfaces, and described
The a plurality of hole for being parallel to the PTFE plates length direction is formed in PTFE plates.
The second aspect of the present invention further relates to a kind of multifrequency antenna, and the multifrequency antenna includes above-mentioned low frequency radiation list
Member, high frequency radiating element and reflecting plate；And the low frequency radiating element is fixed with high frequency radiating element by same axis side by side
On the reflecting plate.
Wherein, the working frequency of the low frequency radiating element is 790~960MHz, the work frequency of the high frequency radiating element
Rate is 1710~2170MHz.
Compared with the immediate prior art, multifrequency antenna array of the present invention has the advantages that：
The low frequency radiating element of the present invention has good electric property and radiance, can subtract with filtering minor matters
Interference of the low frequency radiating element to high frequency radiating element in small multifrequency antenna array, the effective antenna house radiance that improves refer to
Mark；And preparation process is relatively simple, has preferable market application prospect.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of low frequency radiating element of the present invention.
Fig. 2 is the dimensional structure diagram of the multifrequency antenna with low frequency radiating element shown in FIG. 1.
Fig. 3 is the radiation direction analogous diagram of the multifrequency antenna with low frequency radiating element as shown in Figure 1.
Fig. 4 is the voltage standing wave ratio analogous diagram of the multifrequency antenna with low frequency radiating element as shown in Figure 1.
Fig. 5 is the structural schematic diagram of low frequency radiating element conventional in the prior art.
Fig. 6 is the radiation direction analogous diagram of the multifrequency antenna with low frequency radiating element as shown in Figure 5.
Fig. 7 is the voltage standing wave ratio analogous diagram of the multifrequency antenna with low frequency radiating element as shown in Figure 5.
Fig. 8 is the structural schematic diagram of another low frequency radiating element of the present invention.
Specific implementation mode
Multifrequency antenna array of the present invention is further elaborated below with reference to specific embodiment, to this
The technical solution of invention makes more complete and clear explanation.
Embodiment 1
In order to reduce influence of the low frequency radiating element to the space mutual coupling of high frequency radiating element, the present embodiment in multifrequency antenna
A kind of low frequency radiating element is designed and developed.As shown in Figure 1, the low frequency radiating element of the present embodiment includes orthogonal four
Radiation arm is each formed with two filtering minor matters being mutually parallel in each radiation arm.Specifically each filtering minor matters packet
The long through-hole slot of the length direction extension along the radiation arm is included, and is arranged in the short of an end of the long through-hole slot
Through-hole groove, the short through-hole groove is vertical with the long through-hole slot and the short through-hole groove along the radiation arm width direction
Extend outwardly, and be formed with wave structure on the side wall of the long through-hole slot, the length of the long through-hole slot is described short
5~50 times of through-hole slot length, generally 8~20 times.The radiation arm is made of thickness of the aluminium sheet of 5mm, and filter therein
Wave minor matters can be formed by linear cutter.Multifrequency antenna shown in Fig. 2 includes low frequency radiating element as shown in Figure 1.Specifically
For, the multifrequency antenna includes the above-mentioned low frequency radiating element 20 with filtering minor matters 21, high frequency radiating element 30 and reflection
Plate 10；And the low frequency radiating element is fixed on by same axis on the reflecting plate side by side with high frequency radiating element.It is described
The working frequency of low frequency radiating element is 790~960MHz, the working frequency of the high frequency radiating element is 1710~
2170MHz.Fig. 3 shows that the radiation direction analogous diagram of the multifrequency antenna of the present embodiment, Fig. 4 show the multifrequency day of the present embodiment
The voltage standing wave ratio analogous diagram of line.
Comparative example 1
As shown in figure 5, for low frequency radiating element conventional in the prior art comprising orthogonal four radiation arms,
Radiation arm is solid construction.The radiation arm is made of thickness of the aluminium sheet of 5mm.By the low frequency radiating element, high frequency radiation list
Member and reflecting plate are assembled into multifrequency antenna；Specifically the low frequency radiating element presses same axis side by side with high frequency radiating element
It is fixed on the reflecting plate.The working frequency of the low frequency radiating element is 790~960MHz, the high frequency radiating element
Working frequency is 1710~2170MHz.Fig. 6 shows that the radiation direction analogous diagram of the multifrequency antenna of the present embodiment, Fig. 7 are shown
The voltage standing wave ratio analogous diagram of the multifrequency antenna of the present embodiment.
Embodiment 2
In order to reduce influence of the low frequency radiating element to the space mutual coupling of high frequency radiating element, the present embodiment in multifrequency antenna
Devise another low frequency radiating element.As shown in figure 8, the low frequency radiating element of the present embodiment includes orthogonal four spokes
Arm is penetrated, two filtering minor matters being mutually parallel are each formed in each radiation arm.Specifically each filtering minor matters include
Along the long through-hole slot that the length direction of the radiation arm extends, and it is arranged in the short logical of an end of the long through-hole slot
Hole slot, the short through-hole groove is vertical with the long through-hole slot and the short through-hole groove along the radiation arm width direction to
Outer extension.And every long through-hole slot is divided into two cross-talk through-hole grooves, and the two cross-talks through-hole groove is not connected to and mutually remote
From both ends on be provided with short through-hole groove.The length of the sub-through hole slot is 5~10 times of the short through-hole slot length.The spoke
Arm is penetrated to be made of the aluminium sheet of 5mm of thickness, and filtering minor matters therein can be formed by linear cutter.By the low frequency radiation list
Member, high frequency radiating element and reflecting plate are assembled into multifrequency antenna；The specifically low frequency radiating element and high frequency radiating element
It is fixed on side by side on the reflecting plate by same axis.The working frequency of the low frequency radiating element is 790~960MHz, described
The working frequency of high frequency radiating element is 1710~2170MHz.
Embodiment 3
With the low frequency radiating element of embodiment 1, difference lies in make radiation arm, specifically this implementation using composite material
The radiation arm that uses of example, for the PTFE plates of 4mm, and is coated on the aluminium foil of the PTFE plate surfaces upper and lower surface and formed by thickness,
The thickness of aluminium foil is 0.5mm.The a plurality of hole for being parallel to the PTFE plates length direction is formed in the PTFE plates, the hole
A diameter of 0.2mm.By the low frequency radiating element, high frequency radiating element and reflecting plate are assembled into multifrequency antenna；It is specifically described
Low frequency radiating element is fixed on by same axis on the reflecting plate side by side with high frequency radiating element.The low frequency radiating element
Working frequency is 790~960MHz, and the working frequency of the high frequency radiating element is 1710~2170MHz.By using band logical
The corresponding filtering minor matters of radiation arm and cooperation that the PTFE plates in hole are prepared as substrate, can further decrease high frequency wave beam
Width.
Embodiment 4
With the low frequency radiating element of embodiment 2, difference lies in make radiation arm, specifically this implementation using composite material
The radiation arm that uses of example, for the PTFE plates of 4mm, and is coated on the aluminium foil of the PTFE plate surfaces upper and lower surface and formed by thickness,
The thickness of aluminium foil is 0.5mm.The a plurality of hole for being parallel to the PTFE plates length direction is formed in the PTFE plates, the hole
A diameter of 0.2mm.By the low frequency radiating element, high frequency radiating element and reflecting plate are assembled into multifrequency antenna；It is specifically described
Low frequency radiating element is fixed on by same axis on the reflecting plate side by side with high frequency radiating element.The low frequency radiating element
Working frequency is 790~960MHz, and the working frequency of the high frequency radiating element is 1710~2170MHz.By using band logical
The corresponding filtering minor matters of radiation arm and cooperation that the PTFE plates in hole are prepared as substrate, can further decrease high frequency wave beam
Width.
Analog simulation is carried out to the multifrequency antenna of Examples 1 to 4 and comparative example 1 and measures its high frequency standing-wave ratio and high frequency
Beam angle (°), the results are shown in Table 1.
Table 1
| High frequency standing-wave ratio | High frequency beam angle (°) | |
| Comparative example 1 | 1.44 | 52.2~73.9 |
| Embodiment 1 | 1.32 | 58.1~66.2 |
| Embodiment 2 | 1.35 | 59.0~66.3 |
| Embodiment 3 | 1.30 | 60.1~64.9 |
| Embodiment 4 | 1.31 | 60.8~64.2 |
For the ordinary skill in the art, specific embodiment is only exemplarily described the present invention,
Present invention specific implementation is not subject to the restrictions described above, as long as using the various insubstantial of the technical concept progress of the present invention
Property improvement, or the not improved technical concept by the present invention directly applies to other occasions, is wanted in the right of the present invention
It asks within range protection.
Claims (6)
1. a kind of low frequency radiating element, including orthogonal four radiation arms, it is characterised in that：It is respectively formed in each radiation arm
There are two filtering minor matters, each minor matters that filter include the long through-hole slot extended along the length direction of the radiation arm, Yi Jishe
The short through-hole groove in an end of the long through-hole slot is set, the short through-hole groove is vertical and described short with the long through-hole slot
Through-hole groove extends outwardly along the width direction of the radiation arm, and the long through-hole slot of the two filtering minor matters is mutually parallel, institute
Radiation arm is stated by PTFE plates, and is coated on the metal foil composition of the PTFE plate surfaces, is formed in the PTFE plates a plurality of
It is parallel to the hole of the PTFE plates length direction.
2. low frequency radiating element according to claim 1, it is characterised in that：It is formed with wave on the side wall of the long through-hole slot
Striated structure.
3. low frequency radiating element according to claim 1, it is characterised in that：The length of the long through-hole slot is described short logical
5~50 times of hole slot length.
4. low frequency radiating element according to claim 1, it is characterised in that：Every long through-hole slot is divided into two cross-talk through-holes
Slot, the two cross-talks through-hole groove are not connected to and are provided with short through-hole groove on the both ends being located remotely from each other.
5. a kind of multifrequency antenna, the multifrequency antenna includes low frequency radiating element, high frequency radiating element and reflecting plate；The low frequency
Radiating element is fixed on by same axis on the reflecting plate side by side with high frequency radiating element, it is characterised in that：The low frequency spoke
It penetrates unit and is selected from Claims 1 to 4 any one of them low frequency radiating element.
6. multifrequency antenna according to claim 5, it is characterised in that：The working frequency of the low frequency radiating element is 790
The working frequency of~960MHz, the high frequency radiating element are 1710~2170MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710419572.7A CN107257018B (en) | 2017-06-06 | 2017-06-06 | Low frequency radiating element and multifrequency antenna with the low frequency radiating element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710419572.7A CN107257018B (en) | 2017-06-06 | 2017-06-06 | Low frequency radiating element and multifrequency antenna with the low frequency radiating element |
Publications (2)
| Publication Number | Publication Date |
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| CN107257018A CN107257018A (en) | 2017-10-17 |
| CN107257018B true CN107257018B (en) | 2018-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710419572.7A Active CN107257018B (en) | 2017-06-06 | 2017-06-06 | Low frequency radiating element and multifrequency antenna with the low frequency radiating element |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108666749B (en) * | 2018-02-11 | 2021-12-10 | 康凯科技（杭州）股份有限公司 | Antenna unit and MIMO antenna system |
| CN108598677A (en) * | 2018-04-17 | 2018-09-28 | 昆山恩电开通信设备有限公司 | A kind of radiating element and antenna with space filtering function |
| CN112164869B (en) * | 2020-09-25 | 2021-09-24 | 京信通信技术(广州)有限公司 | Antenna, low-frequency radiation unit and radiation arm |
| CN112186333B (en) * | 2020-09-29 | 2021-06-25 | 华南理工大学 | Base station antenna, radiation unit and radiation arm |
| CN112490651A (en) * | 2020-11-12 | 2021-03-12 | 杭州电子科技大学 | Multi-band base station scattering suppression antenna |
| CN113922049B (en) * | 2021-10-18 | 2022-09-27 | 华南理工大学 | Dual-frequency dual-polarization common-caliber base station antenna and communication equipment |
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| CN102280701A (en) * | 2011-05-10 | 2011-12-14 | 北京航空航天大学 | Circularly polarized micro-strip antenna adopting wave-shaped groove structure |
| CN202076403U (en) * | 2011-05-16 | 2011-12-14 | 摩比天线技术（深圳）有限公司 | Double-frequency dual-polarization antenna oscillator of loading filter |
| CN103427151A (en) * | 2012-05-22 | 2013-12-04 | 深圳国人通信有限公司 | Dual-polarization antenna and radiating element thereof |
| CN106025523A (en) * | 2016-08-09 | 2016-10-12 | 武汉虹信通信技术有限责任公司 | Radiating element of cross structure and antenna array thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140069968A (en) * | 2012-11-30 | 2014-06-10 | 주식회사 케이엠더블유 | Antenna of mobile communication station |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280701A (en) * | 2011-05-10 | 2011-12-14 | 北京航空航天大学 | Circularly polarized micro-strip antenna adopting wave-shaped groove structure |
| CN202076403U (en) * | 2011-05-16 | 2011-12-14 | 摩比天线技术（深圳）有限公司 | Double-frequency dual-polarization antenna oscillator of loading filter |
| CN103427151A (en) * | 2012-05-22 | 2013-12-04 | 深圳国人通信有限公司 | Dual-polarization antenna and radiating element thereof |
| CN106025523A (en) * | 2016-08-09 | 2016-10-12 | 武汉虹信通信技术有限责任公司 | Radiating element of cross structure and antenna array thereof |
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| CN107257018A (en) | 2017-10-17 |
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