CN106356630B - Ultra-wideband radiating element and antenna - Google Patents
Ultra-wideband radiating element and antenna Download PDFInfo
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- CN106356630B CN106356630B CN201610928844.1A CN201610928844A CN106356630B CN 106356630 B CN106356630 B CN 106356630B CN 201610928844 A CN201610928844 A CN 201610928844A CN 106356630 B CN106356630 B CN 106356630B
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- 238000005452 bending Methods 0.000 claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract description 22
- 230000005855 radiation Effects 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000009977 dual effect Effects 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 abstract 1
- 238000004891 communication Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000004512 die casting Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- 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
-
- 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
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- Details Of Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses an ultra-wideband antenna radiating unit and an antenna, comprising a pair of orthogonally arranged dipoles, a balancer for carrying out balanced feed on the dipoles, a feed core and a feed circuit board; each dipole comprises a pair of radiating element arms fixed on a feed balancer, wherein two sides of the tail ends of the radiating element arms are bent downwards; the whole radiation unit arm, the feed balancer, the feed core is set up on the support plastic piece of one shot moulding jointly, the end of feed balancer and the end of feed core are welded on the feed circuit board jointly. The ultra-wideband radiating unit adopts a sheet metal bending process to form the radiating unit arm and the feed balancer, the caliber of the radiating unit is reduced and the impedance bandwidth of the radiating unit is widened by downwards bending the tail end of the radiating unit arm, and the radiating unit is fed through the sheet metal feed core, so that the miniaturization and the light weight of the radiating unit are realized.
Description
Technical Field
The invention relates to the technical field of mobile communication, in particular to an ultra-wideband radiation unit and an antenna.
Background
Ultra wideband antenna communication technology (UWB) generally refers to radio technologies having a signal bandwidth greater than 1.5GHz or a bandwidth ratio (ratio of signal width to center frequency) greater than 25%. Ultra wideband antennas are a critical component in ultra wideband wireless communication systems, and the performance of the antenna will directly affect the performance of the overall system.
With the rapid development of mobile communication technology, the multi-frequency ultra-wideband base station antenna has become the trend of the future antenna development, and the number of radiating elements in the antenna will also increase exponentially, so that the requirements of the equipment manufacturer and the operators on the size and the weight of the antenna are increasingly strict, and therefore, miniaturization and weight reduction of the radiating elements and other components in the antenna are becoming increasingly important.
The ultra-wideband radiating element in the prior art is integrally formed by adopting a die casting process, and the radiating element is heavy and cannot meet the requirement of the existing communication market on light weight. Therefore, aiming at the light weight requirements of the existing and future communication markets, it is particularly necessary to design a radiation unit which has simple structure, convenient processing and good performance when applied to double frequencies and more.
Disclosure of Invention
In order to solve the technical problems, the invention provides an ultra-wideband radiating element and an antenna, which can realize miniaturization and light weight of a base station antenna under the condition of ensuring the performance of the original die-casting radiating element.
The technical scheme of the invention is realized as follows:
the ultra-wideband radiating element comprises a pair of dipoles, a feed balancer for carrying out balanced feed on each dipole, a feed core for feeding each dipole and a feed circuit board, wherein the balancer and the feed core are electrically connected to the feed circuit board, each dipole comprises two radiating element arms which are symmetrically and fixedly arranged on the feed balancer, four radiating element arms are mutually symmetrically arranged relative to the center of the radiating element, and two sides of the tail end of each radiating element arm are provided with bending element arms which are downwards bent.
Further, the whole radiation unit presents a square structure or an octagonal structure or other regular polygonal structures on the projection plane.
Further, the feed balancer comprises four balance supporting pieces corresponding to four radiating unit arms, one end, close to the center, of each radiating unit arm is connected with the upper end of each balance supporting piece, and the radiating unit arms, the balance supporting pieces corresponding to the radiating unit arms and the bending unit arms are integrally formed through a sheet metal bending process.
Further, the feed balancer forms a microstrip feed structure with the feed core as a feed ground structure of the feed core.
Further, the feed balancer and the feed core are soldered to the feed circuit board together.
Further, the dipole, the feed balancer and the feed core are jointly arranged on a support plastic piece which is formed by one-time injection molding.
Further, the supporting plastic piece comprises a base, an outer supporting piece and an inner supporting piece, wherein the outer supporting piece is formed on the upper side of the base and used for supporting and positioning the feed balancer and the dipole, the inner supporting piece is formed on the upper side of the base and used for supporting and positioning the feed core, the inner supporting piece and the outer supporting piece are arranged at intervals, and the inner supporting piece is surrounded by the outer supporting piece; the feed circuit board is arranged on the lower side of the base, and the feed balancer and the feed core penetrate through the base to be connected to the feed circuit board.
Further, the radiating unit arms comprise side arms surrounding a symmetrical polygon and reinforcing arms arranged along the diagonal line of the polygon, one corner of the polygon is chamfered to form a chamfer, and the upper end of the balance support piece is connected to the chamfer; the outer support comprises an outer upright post corresponding to four radiating element arms, the radiating element arms are positioned and supported at the top of the outer upright post, and the balance support is attached to the side surface of the outer upright post; the power feeding core comprises a pair of power feeding sheets corresponding to a pair of dipoles, and each power feeding sheet comprises a power feeding sheet body, a short arm formed by bending one end of the power feeding sheet body and a long arm formed by bending the other end of the power feeding sheet body; the inner support piece comprises an inner upright post corresponding to each feeding piece, and a slotted hole corresponding to the long arm of each feeding piece and a abdication groove corresponding to the short arm of each feeding piece are formed on the inner upright post; the feed piece body supports and positions at the top of the inner upright post, the long arm penetrates through the slotted hole to be connected to the feed circuit board, and the short arm is accommodated in the abdication groove.
A broadband antenna comprises a metal reflecting plate serving as a reflector, wherein at least two ultra-wideband radiating units are linearly or non-linearly arranged on the metal reflecting plate.
The dual-broadband antenna comprises a metal reflecting plate serving as a reflector, wherein at least two ultra-wideband radiating units are arranged on the metal reflecting plate in a linear or nonlinear mode, and a plurality of low-frequency radiating units are also arranged on the metal reflecting plate, and part of the ultra-wideband radiating units are arranged in the low-frequency radiating units.
The beneficial effects of the invention are as follows: the invention provides an ultra-wideband radiation unit and an antenna, wherein the ultra-wideband radiation unit comprises a pair of dipoles which are orthogonally arranged, a feed balancer for carrying out balanced feed on the dipoles, a feed core for feeding each dipole and a feed circuit board; each dipole comprises a pair of radiating element arms fixed on the feed balancer, wherein two sides of the tail end of each radiating element arm are bent downwards to form bent element arms; the whole radiating element arm, the feed balancer and the feed core are jointly supported and arranged on a plastic piece which is formed by one-time injection molding, and the tail end of the feed balancer and the tail end of the feed core are jointly welded on a feed circuit board; on the other hand, the whole radiating unit adopts a sheet metal bending structure and is supported and fixed by using a one-step formed plastic part, so that the structural strength of the whole radiating unit is ensured while the light weight is ensured, and the miniaturization and the light weight of the radiating unit and the antenna are realized.
Drawings
FIG. 1 is a schematic diagram of the perspective structure of an ultra wideband radiating element of the present invention;
FIG. 2 is a top view of an ultra wideband radiating element of the present invention;
FIG. 3 is a bottom view of an ultra wideband radiating element of the present invention;
FIG. 4 is a schematic diagram of an exploded construction of an ultra wideband radiating element according to the present invention;
FIG. 5 is a schematic view of a supporting plastic part according to the present invention;
FIG. 6 is a schematic view of another view of the supporting plastic part according to the present invention;
FIG. 7 is a schematic diagram of a broadband antenna according to the present invention;
FIG. 8 is a schematic diagram of a dual broadband antenna according to the present invention;
the following description is made with reference to the accompanying drawings:
1-dipole, 11-radiating element arm, 111-side arm, 112-reinforcing arm, 113-chamfer, 12-bending element arm, 2-feed balancer, 21-balance support, 3-feed core, 31-feed tab, 311-feed tab body, 312-short arm, 313-long arm, 4-feed circuit board, 5-support plastic piece, 51-base, 52-outer support, 521-outer post, 5211-stop a, 5212-stop B, 5213-snap stop a, 53-inner support, 531-inner post, 5311-slot, 5312-relief slot, 5313-stop C, 5314-snap stop B, 54-cross, 55-mount, 6-metal reflector, 7-low frequency radiating element.
Detailed Description
In order that the technical content of the present invention may be more clearly understood, the following detailed description of the embodiments is given only for better understanding of the content of the present invention and is not intended to limit the scope of the present invention.
As shown in fig. 1, 2, 3 and 4, an ultra-wideband radiating element includes a pair of dipoles 1, a feed balancer 2 for balancing and feeding each dipole, a feed core 3 for feeding each dipole, and a feed circuit board 4 to which the balancer and the feed core are electrically connected, each dipole includes two radiating element arms 11 symmetrically and fixedly disposed on the feed balancer, four radiating element arms are symmetrically disposed with respect to a radiating element center, and two sides of an end of each radiating element arm have bending element arms 12 formed by bending downward. Therefore, the caliber of the radiating unit is reduced and the impedance bandwidth of the radiating unit is widened by downwards bending the tail end of the radiating unit arm, and the four cross-polarized coupled radiating unit arms of the radiating unit are fed through the feed core and the feed circuit board, so that the miniaturization and the light weight of the radiating unit are realized. Here, the two sides of the end of the radiating element arm are one end far away from the center of the radiating element, and each of the two sides of the end of the radiating element arm forms a bending element arm, that is, one radiating element arm is provided with two bending element arms, the two bending element arms are not connected at the end, and preferably, the bending element arms are bent into vertical radiating element arms.
Preferably, the entire radiation unit exhibits a square structure or an octagonal structure or other regular polygonal structure on the projection plane. The implementation is preferably in a square structure, specifically, four radiating element arms are in a square structure, and the four square radiating element arms enclose a radiating element which is integrally square, but the implementation is not limited to the square radiating element, and the radiating element arms can also be in other symmetrical polygonal structures, can also be in a fan shape, a diamond shape or the like.
Preferably, the feed balancer includes four balance support pieces 21 corresponding to four radiating element arms, one end of the radiating element arm close to the center is connected with the upper end of the balance support piece, the radiating element arm, the balance support piece corresponding to the radiating element arm and the bending element arm are integrally formed through a sheet metal bending process, so that the whole radiating element is formed by bending sheet metal, and compared with die casting, the feed balancer is convenient to implement while ensuring light weight, and reduces manufacturing cost.
Preferably, the feed balancer forms a microstrip feed structure with the feed core as a feed ground structure of the feed core. I.e. the feed balancer may act as a feed ground structure for the feed core, thereby forming a microstrip feed structure with the feed core.
Preferably, the feed balancer and the feed core are soldered together on a feed circuit board.
Preferably, the dipole, the feed balancer and the feed core are arranged together on a single injection molded support plastic part 5. Therefore, the whole radiating unit adopts a sheet metal bending structure and is supported and fixed by using a one-step formed plastic part, so that the light weight is ensured and the structural strength of the whole radiating unit is ensured.
Preferably, referring to fig. 5 and 6, the supporting plastic member includes a base 51, an outer supporter 52 formed at an upper side of the base for supporting and positioning the feed balancer and the dipole, and an inner supporter 53 formed at an upper side of the base for supporting and positioning the feed core, the inner supporter being spaced apart from the outer supporter and surrounded by the outer supporter; the feed circuit board is arranged on the lower side of the base, and the feed balancer and the feed core penetrate through the base to be connected to the feed circuit board. Therefore, the positioning support of the radiating unit arm and the feed balancer can be realized through the outer supporting piece, and the positioning support of the feed core can be realized through the inner supporting piece, so that the structural strength of the whole radiating unit is ensured. The feed core is arranged in the feed balancer and the radiating element arm to form a coupling feed.
Preferably, referring to fig. 2, 5 and 6, the radiating element arm includes a side arm 111 enclosing a symmetrical polygon and a reinforcing arm 112 disposed along a diagonal of the polygon, a corner of the polygon is chamfered to be a chamfer 113, and an upper end of the balance support is connected to the chamfer; the outer support comprises an outer upright 521 corresponding to four radiating element arms, the radiating element arms are positioned and supported on the top of the outer upright, and the balance support is attached to the side surface of the outer upright; the feed core comprises a pair of feed pieces 31 corresponding to a pair of dipoles, and each feed piece comprises a feed piece body 311, a short arm 312 formed by bending one end of the feed piece body and a long arm 313 formed by bending the other end of the feed piece body; the inner support piece comprises an inner upright post 531 corresponding to each feeding piece, and a slotted hole 5311 corresponding to a long arm of each feeding piece and a abdication groove 5312 corresponding to a short arm of each feeding piece are formed on the inner upright post; the feed piece body supports and positions at the top of the inner upright post, the long arm penetrates through the slotted hole to be connected to the feed circuit board, and the short arm is accommodated in the abdication groove. Preferably, the radiating element arm comprises four side arms which enclose a square, and two orthogonal reinforcing arms are arranged on the diagonal line of the square, so that when the radiating element arm is positioned and supported on the outer upright post, the radiating element arm can be limited to swing left and right by arranging two stop blocks A5211 at the top of the outer upright post, the other reinforcing arm can be limited to move towards the center of the radiating element by arranging two stop blocks B5212, and more preferably, the two hanging buckle stop blocks A5213 are arranged on the other side of the reinforcing arm, so that the radiating element arm is limited to move towards the direction far away from the center of the radiating element and is hung at the same time, and the radiating element arm is pressed to the top of the outer upright post, so that the function of supporting and positioning the radiating element arm can be better realized. Here, one end (chamfer position) of the radiating element arm near the center is connected with the upper end of the balance support member, so that the balance support member is perpendicular to the radiating element arm, therefore, the balance support member can be tightly positioned on the side surface of the outer upright post to be positioned, and the lower end of the balance support member passes through a via hole reserved on the base to be welded on the feed circuit board. When a pair of orthogonal feeding sheets of the feeding core are supported and positioned, two groups of spaced stop C5313 can be adopted to limit the two ends of the feeding sheet body of each feeding sheet so as to limit the left-right swing of the feeding sheet, and the feeding sheet can be pressed and positioned to the top of the inner upright post by adopting the structure of the hanging buckle stop B5314. Preferably, the four outer posts are fixedly connected together near the top in sequence by a cross-link 54. The base supporting the plastic member is reserved with a mounting member 55 fixed to the antenna metal reflecting plate.
Referring to fig. 7, a broadband antenna includes a metal reflecting plate 6 as a reflector, on which at least two ultra-wideband radiating elements are linearly or non-linearly disposed.
Referring to fig. 8, a dual broadband antenna includes a metal reflecting plate as a reflector, and a plurality of low frequency radiating elements 7 are disposed on the metal reflecting plate, in addition to at least two ultra-wideband radiating elements disposed linearly or nonlinearly, wherein a part of the ultra-wideband radiating elements may be disposed in the low frequency radiating elements, so as to achieve the purpose of comprehensive utilization of space. In other embodiments the ultra wideband radiating element and the low frequency radiating element may be provided independently.
In summary, the invention provides an ultra-wideband radiation unit and an antenna which have simple structure, convenient processing and good performance when applied to double frequency and more than double frequency aiming at the light weight requirements of the existing and future communication markets.
The above embodiments are described in detail with reference to the accompanying drawings. Modifications and variations in the above-described embodiments may be made by those skilled in the art without departing from the spirit of the invention, which fall within the scope of the invention.
Claims (7)
1. An ultra-wideband radiating element comprising a pair of dipoles (1), a feed balancer (2) for balancing feeding each dipole, a feed core (3) for feeding each dipole and a feed circuit board (4), said balancer and said feed core being electrically connected to said feed circuit board, characterized in that: each dipole comprises two radiating unit arms (11) symmetrically and fixedly arranged on the feed balancer, the four radiating unit arms are mutually symmetrically arranged relative to the center of the radiating unit, and two sides of the tail end of each radiating unit arm are provided with bending unit arms (12) formed by bending downwards;
the dipole, the feed balancer and the feed core are arranged on a support plastic piece (5) which is formed by one-time injection molding;
the feed balancer comprises four balance supporting pieces (21) corresponding to four radiating unit arms, one end, close to the center, of each radiating unit arm is connected with the upper end of each balance supporting piece, and the radiating unit arms, the balance supporting pieces corresponding to the radiating unit arms and the bending unit arms are integrally formed through a sheet metal bending process;
the support plastic piece comprises a base (51), an outer support piece (52) formed on the upper side of the base and used for supporting and positioning the feed balancer and the dipole, and an inner support piece (53) formed on the upper side of the base and used for supporting and positioning the feed core, wherein the inner support piece and the outer support piece are arranged at intervals, and the inner support piece is surrounded by the outer support piece; the feed circuit board is arranged on the lower side of the base, and the feed balancer and the feed core penetrate through the base to be connected to the feed circuit board.
2. The ultra-wideband radiating element of claim 1, wherein: the whole radiation unit presents a square structure or an octagonal structure or other regular polygonal structures on the projection plane.
3. The ultra-wideband radiating element of claim 1, wherein: the feed balancer forms a microstrip feed structure with the feed core as a feed ground structure of the feed core.
4. The ultra-wideband radiating element of claim 1, wherein: the feed balancer and the feed core are welded on the feed circuit board together.
5. The ultra wideband radiation unit of claim 2, wherein: the radiating unit arms comprise side arms (111) which enclose a symmetrical polygon and reinforcing arms (112) which are arranged along the diagonal of the polygon, one corner of the polygon is cut into a chamfer (113), and the upper end of the balance support piece is connected to the chamfer; the outer support comprises an outer column (521) corresponding to four radiating element arms positioned and supported on the top of the outer column, and the balance support is attached to the side surface of the outer column; the feed core comprises a pair of feed pieces (31) corresponding to a pair of dipoles, and each feed piece comprises a feed piece body (311), a short arm (312) formed by bending one end of the feed piece body and a long arm (313) formed by bending the other end of the feed piece body; the inner support piece comprises an inner upright post (531) corresponding to each feeding piece, and a slotted hole (5311) corresponding to the long arm of each feeding piece and a abdication groove (5312) corresponding to the short arm of each feeding piece are formed on the inner upright post; the feed piece body supports and positions at the top of the inner upright post, the long arm penetrates through the slotted hole to be connected to the feed circuit board, and the short arm is accommodated in the abdication groove.
6. A broadband antenna comprising a metal reflector plate (6) as reflector, characterized in that: at least two ultra-wideband radiation units according to any one of claims 1-5 are arranged on the metal reflecting plate linearly or nonlinearly.
7. A dual broadband antenna comprising a metal reflector plate as a reflector, characterized in that: the metal reflecting plate is provided with a plurality of low-frequency radiating elements (7) besides at least two ultra-wideband radiating elements as claimed in any one of claims 1-6 which are arranged linearly or non-linearly, wherein part of the ultra-wideband radiating elements are arranged in the low-frequency radiating elements.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610928844.1A CN106356630B (en) | 2016-10-31 | 2016-10-31 | Ultra-wideband radiating element and antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610928844.1A CN106356630B (en) | 2016-10-31 | 2016-10-31 | Ultra-wideband radiating element and antenna |
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| CN106356630A CN106356630A (en) | 2017-01-25 |
| CN106356630B true CN106356630B (en) | 2023-12-26 |
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| CN201610928844.1A Active CN106356630B (en) | 2016-10-31 | 2016-10-31 | Ultra-wideband radiating element and antenna |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425264A (en) * | 2017-07-10 | 2017-12-01 | 武汉虹信通信技术有限责任公司 | A kind of bowl-shape Bipolarization antenna for base station radiating element and antenna |
| CN110416696A (en) * | 2018-04-26 | 2019-11-05 | 罗森伯格技术（昆山）有限公司 | A kind of ultra-wide-band emission unit |
| CN109980329B (en) * | 2019-03-12 | 2023-12-26 | 广州司南技术有限公司 | Broadband dual polarized antenna |
| CN114498003B (en) * | 2022-03-04 | 2022-11-15 | 电子科技大学 | Low-profile low-cross-polarization dual-polarized electromagnetic dipole antenna |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066399A (en) * | 2012-12-18 | 2013-04-24 | 张家港保税区国信通信有限公司 | Nested circular ring type dual polarization radiating element |
| CN105990649A (en) * | 2015-02-13 | 2016-10-05 | 摩比天线技术（深圳）有限公司 | Small ultra-wideband dual-polarization radiation unit |
| CN206274550U (en) * | 2016-10-31 | 2017-06-23 | 昆山恩电开通信设备有限公司 | Ultra-wide-band emission unit and antenna |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7173572B2 (en) * | 2002-02-28 | 2007-02-06 | Andrew Corporation | Dual band, dual pole, 90 degree azimuth BW, variable downtilt antenna |
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2016
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066399A (en) * | 2012-12-18 | 2013-04-24 | 张家港保税区国信通信有限公司 | Nested circular ring type dual polarization radiating element |
| CN105990649A (en) * | 2015-02-13 | 2016-10-05 | 摩比天线技术（深圳）有限公司 | Small ultra-wideband dual-polarization radiation unit |
| CN206274550U (en) * | 2016-10-31 | 2017-06-23 | 昆山恩电开通信设备有限公司 | Ultra-wide-band emission unit and antenna |
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