CN202839949U - LTE broadband dual-polarization antenna oscillator - Google Patents
LTE broadband dual-polarization antenna oscillator Download PDFInfo
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- CN202839949U CN202839949U CN 201220400843 CN201220400843U CN202839949U CN 202839949 U CN202839949 U CN 202839949U CN 201220400843 CN201220400843 CN 201220400843 CN 201220400843 U CN201220400843 U CN 201220400843U CN 202839949 U CN202839949 U CN 202839949U
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Abstract
The utility model discloses an LTE broadband dual-polarization antenna oscillator, comprising a printed circuit board, a balun support and a reflective board. A radiation unit is printed on a front surface of the printed circuit board. Every pair of dipoles consists of two annular radiation units which are on the same plane and are arranged in a central symmetry manner. Two centers of two pairs of dipoles are vertical and cross. The adjacent radiation units are 90 DEG equiangular bias and a gap is mounted between the adjacent radiation units. The radiation units forming the pair of dipoles are electrically connected with each other. The printed circuit board and the reflective board are fixed on the balun support disposed between the circuit board and the reflective board. The dual-polarization antenna oscillator provided by the utility model has broad bandwidth and can operate in a frequency scope of 1700-2700 MHz. A VSWR is less than or equal to 1.4. The antenna oscillator can realize 65 DEG and 90 DEG antenna arrays of level 3dB bandwidth and is made of a polytetrafluoroethylene micro-strip board. The oscillator has the advantages of small size, low profile, light weight and good processing consistency and satisfies present mobile-communication development requirements.
Description
Technical field
The utility model relates to antenna of mobile communication base station, relates in particular to a kind of LTE broadband dual polarized antenna oscillator.
Background technology
LTE(long term evolution) is the Long Term Evolution of 3G communication, the global standards of 4G, a kind of trend of future communications development, it improves the aerial access technology that has strengthened 3G, have high data transmission rate, grouping transmission, the low delay, cover the advantages such as wide and backward compatible, for satisfying the development need of mobile communication, the exploitation of the Bipolarization antenna for base station of LTE is the emphasis of current base station antenna research and development, and as the exploitation of the elementary cell LTE dual polarization vibrator that forms the LTE antenna array with optimize the especially most important thing.
The utility model content
The purpose of this utility model is to provide a kind of LTE broadband dual polarized antenna oscillator, to satisfy the needs of current Mobile Communication Development.
For reaching this purpose, the utility model by the following technical solutions:
A kind of LTE broadband dual polarized antenna oscillator, it comprises printed circuit board, Ba Lun bearing and reflecting plate, described printed circuit board front is printed with radiating element, every electrode couple circular radiating element coplanar by two and the Central Symmetry setting consists of, two electrode couple are the central vertical cross-like, the adjacent radiation unit is 90 ° of isogonism biasings, and gapped between the adjacent radiation unit, consist of between the radiating element of a pair of dipole and be electrically connected, described printed circuit board and reflecting plate are fixed at it on the Ba Lun bearing between the two.
Preferably, the dielectric-slab that described printed circuit board adopts is that dielectric constant is 2.65, and thickness is the Copper Clad Laminates Based On Polytetrafluoroethylene of 1mm.
Preferably, each radiating element is electrically connected with the parasitic radiation band of the corresponding printing in the printed circuit board back side, and described parasitic radiation band is semi-annular shape, and its annulus width is identical with the annulus width of radiating element.
Preferably, each radiating element is electrically connected with the parasitic radiation band of the corresponding printing in the printed circuit board back side by the oscillator through hole more than 3 that arranges on its counterpart printed circuit board.
Preferably, consist of between the radiating element of a pair of dipole and connect with the feed band, the feed band of two electrode couple is the antarafacial square crossing.
Preferably, near the printed circuit panel edges, the V-arrangement gap that the adjacent radiation unit forms distributing by and the coupling of radiating element adjust the isolation strip of isolation between the dual polarization, described isolation strip is coplanar with radiating element but do not contact.
Preferably, the V-shaped or waveform in described isolation strip, the isolation strip of a described LTE broadband dual polarized antenna oscillator is 2 or 4.
Preferably, described dipole adopts the coaxial cable DC feedback, one end of described two feed bands respectively has a power feed hole, described Ba Lun bearing comprises base, be positioned at two support columns on the base and be positioned at two alignment pins of the projection on two support column tops, two cable aperture are arranged on the described base, the height of described support column is 1/4 λ, described two alignment pins embed away from the jack on the printed circuit board of two radiating element counterparts of described power feed hole, and with the welding of this two radiating element, coaxial cable passes described cable aperture, coaxial cable outer conductor is welded and fixed at the cable aperture place, cable core pass power feed hole and with the feed welding.
Preferably, be provided with the described power feed hole of next-door neighbour and be the intensive metallic vias of first quarter moon shape on printed circuit board corresponding to described power feed hole next-door neighbour's radiating element, the short circuit layer that described radiating element is printed by described metallic vias and the printed circuit board back side is connected, and described coaxial cable outer conductor also is welded and fixed with the short circuit layer at the printed circuit board back side.
Preferably, described Ba Lun bearing is the integrated solid symmetrical structure of die casting, and is coated with dumb light tin.
For preventing printed circuit board (PCB) oxide etch, preferably, except metal Tong Kong ﹑ short circuit Ceng ﹑ feed (band) layer and pad of printed circuit board, the two-sided green oil that all scribbles of the dielectric-slab of printed circuit board.
The beneficial effects of the utility model are: by the antenna oscillator radiating element is printed on the circuit board, make antenna realize miniaturization, lightweight, and the consistency of oscillator processing is greatly improved; Shortened the length of radiating element by coplanar circular ring structure, because the isolation between the dual polarization has further been improved in symmetry, the raising of balance and the isolation strip of radiating element periphery of radiating element; Adopt the feed band to replace feed tab, reduced the contact between different metal, favourable inhibition produces the undesirable element of intermodulation; Adopt the integrated solid Ba Lun bearing of die casting, help the fixing of printed circuit board, in the long-distance transport process, can not become flexible distortion, guaranteed the electrical property of antenna; Radiating element is connected by the oscillator through hole with the parasitic radiation band at the back side, has expanded the beamwidth of antenna, and the aerial array that forms thus can be operated in the frequency range of 1700-2700MHz, also can compatible DCS, PCS, the frequency ranges such as UMTS, TD-FDA, WIMAX.
Description of drawings
Fig. 1 is the Facad structure schematic diagram of the used printed circuit board of the utility model embodiment;
Fig. 2 is the structural representation after turning upside down in the back side of the used printed circuit board of the utility model embodiment;
Fig. 3 is the perspective view of the used Ba Lun bearing of the utility model embodiment.
Among the figure: 1,2,3,4 is radiating element; 5,6,7,8 are the parasitic radiation band; 9,10 is front feed band; 11 is back side feed band; 12,13 is the short circuit layer; 14,15 is the isolation strip; 16,17 is jack; 18,19 is power feed hole; 20,21 is feed band through hole; 22 is the oscillator through hole; 23 is base; 24 is support column; 25 is alignment pin; 26 is cable aperture; 27 is the bearing fixing hole.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the utility model in detail.
Shown in Fig. 1～3, the LTE broadband dual polarized antenna oscillator of the present embodiment, it comprises printed circuit board, Ba Lun bearing and reflecting plate, described printed circuit board front is printed with radiating element 1,2,3,4, for improving cross polarization, radiating element is arranged to circular, the adjacent radiation unit is 90 ° of isogonism biasings, radiating element 1 and 3 consists of a pair of dipole, radiating element 2 and 4 consists of a pair of dipole, and the coplanar and central vertical of two electrode couples is intersected, and is gapped between two adjacent radiating elements, and adjust the resonance point of antenna oscillator by coupling gap, four gaps totally become cross crotch.
Preferably, the dielectric-slab that described printed circuit board adopts is that dielectric constant is 2.65, and thickness is the Copper Clad Laminates Based On Polytetrafluoroethylene of 1mm.
For widening bandwidth of operation, radiating element 1,2,3,4 connects with parasitic radiation band 5,6,7,8 short circuits of the corresponding printing in the printed circuit board back side respectively by its 3 oscillator through holes 22 that arrange on counterpart printed circuit board separately, described parasitic radiation band is semi-annular shape, and its annulus width is identical with the annulus width of radiating element.
In close printed circuit panel edges, the V- arrangement isolation strip 14,15 that adjacent radiation unit 1 and 4 and 2 and 3 s' V-arrangement gap is distributing, described isolation strip is coplanar with radiating element but do not contact, and by and the coupling of radiating element adjust and improve isolation between dual polarization.
Described dipole adopts the coaxial cable DC feedback, front feed band 9, an end of 10 respectively has a power feed hole 18,19, described Ba Lun bearing comprises base 23, be positioned at two support columns 24 on the base 23 and be positioned at two alignment pins 25 of the projection on two support columns, 24 tops, two cable aperture 26 are arranged on the described base 23, the height of described support column 24 is about 1/4 λ, described two alignment pins 23 embed away from described power feed hole 18,19 two radiating elements 1, jack 16 on the printed circuit board of 4 counterparts, in 17, and with the welding of this two radiating element, coaxial cable passes described cable aperture 26, coaxial cable outer conductor is welded and fixed at cable aperture 26 places, and cable core passes power feed hole 18,19 and with feed band 9,10 welding.
Be provided with the described power feed hole 18 of next-door neighbour, 19 and be the intensive metallic vias of first quarter moon shape on the printed circuit board of described power feed hole 18,19 next-door neighbours' radiating elements 2,3 correspondences, described radiating element 2, the 3 short circuit layers 12,13 of printing by described metallic vias and the printed circuit board back side are connected, and described coaxial cable outer conductor also is welded and fixed with the short circuit layer 12 or 13 at the printed circuit board back side.
Preferably, described Ba Lun bearing is the integrated solid symmetrical structure of die casting, and is coated with dumb light tin; Cable aperture 26 is raised in about base 23 upper surface 3mm, for the protection of cable, prevents that cable outer conductor from breaking; Described base 23 also has two bearing fixing holes, is used for by screw or rivet the Ba Lun bearing being fixed on reflecting plate.
The printed circuit board of the LTE broadband dual polarized antenna oscillator after being connected and fixed is parallel with reflecting plate, and dipole is namely finished the conversion of the imbalance-balance of surface current by 1/4 λ Ba Lun bearing like this.
For preventing printed circuit board (PCB) oxide etch, preferably, except metal Tong Kong ﹑ short circuit Ceng ﹑ feed (band) layer and pad of printed circuit board, the two-sided green oil that all scribbles of the dielectric-slab of printed circuit board.
The utility model bandwidth, can be operated in the frequency range of 1700-2700MHz, VSWR≤1.4, can realize horizontal plane 3dB width 65 degree and 90 degree antenna arrays, adopt the little band plate of polytetrafluoroethylene to make, have a volume little, section is low, lightweight, process the advantages such as high conformity, satisfied the needs of current Mobile Communication Development.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (10)
1. LTE broadband dual polarized antenna oscillator, it comprises printed circuit board, Ba Lun bearing and reflecting plate, it is characterized in that: described printed circuit board front is printed with radiating element, every electrode couple circular radiating element coplanar by two and the Central Symmetry setting consists of, two electrode couple are the central vertical cross-like, the adjacent radiation unit is 90 ° of isogonism biasings, and gapped between the adjacent radiation unit, consist of between the radiating element of a pair of dipole and be electrically connected, described printed circuit board and reflecting plate are fixed at it on the Ba Lun bearing between the two.
2. LTE broadband dual polarized antenna oscillator according to claim 1, it is characterized in that: the dielectric-slab that described printed circuit board adopts is that dielectric constant is 2.65, and thickness is the Copper Clad Laminates Based On Polytetrafluoroethylene of 1mm.
3. LTE broadband dual polarized antenna oscillator according to claim 1, it is characterized in that: each radiating element is electrically connected with the parasitic radiation band of the corresponding printing in the printed circuit board back side, described parasitic radiation band is semi-annular shape, and its annulus width is identical with the annulus width of radiating element.
4. it is characterized in that according to claim 1 or 3 described LTE broadband dual polarized antenna oscillators: each radiating element is electrically connected with the parasitic radiation band of the corresponding printing in the printed circuit board back side by the oscillator through hole more than 3 that arranges on its counterpart printed circuit board.
5. LTE broadband dual polarized antenna oscillator according to claim 1 is characterized in that: consist of between the radiating element of a pair of dipole and connect with the feed band, the feed band of two electrode couple is the antarafacial square crossing.
6. LTE broadband dual polarized antenna oscillator according to claim 1, it is characterized in that: in close printed circuit panel edges, the V-arrangement gap that the adjacent radiation unit forms distributing by and the coupling of radiating element adjust the isolation strip of isolation between the dual polarization, described isolation strip is coplanar with radiating element but do not contact.
7. LTE broadband dual polarized antenna oscillator according to claim 6 is characterized in that: the V-shaped or waveform in described isolation strip, the isolation strip of a described LTE broadband dual polarized antenna oscillator is 2 or 4.
8. LTE broadband dual polarized antenna oscillator according to claim 5, it is characterized in that: described dipole adopts the coaxial cable DC feedback, one end of described two feed bands respectively has a power feed hole, described Ba Lun bearing comprises base, be positioned at two support columns on the base and be positioned at two alignment pins of the projection on two support column tops, two cable aperture are arranged on the described base, the height of described support column is 1/4 λ, described two alignment pins embed away from the jack on the printed circuit board of two radiating element counterparts of described power feed hole, and with the welding of this two radiating element, coaxial cable passes described cable aperture, coaxial cable outer conductor is welded and fixed at the cable aperture place, cable core pass power feed hole and with the feed welding.
9. a kind of LTE broadband dual polarized antenna oscillator according to claim 8, it is characterized in that: be provided with the described power feed hole of next-door neighbour and be the intensive metallic vias of first quarter moon shape on printed circuit board corresponding to described power feed hole next-door neighbour's radiating element, the short circuit layer that described radiating element is printed by described metallic vias and the printed circuit board back side is connected, and described coaxial cable outer conductor also is welded and fixed with the short circuit layer at the printed circuit board back side.
10. a kind of LTE broadband dual polarized antenna oscillator according to claim 8, it is characterized in that: described Ba Lun bearing is the integrated solid symmetrical structure of die casting, and is coated with dumb light tin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220400843 CN202839949U (en) | 2012-08-13 | 2012-08-13 | LTE broadband dual-polarization antenna oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220400843 CN202839949U (en) | 2012-08-13 | 2012-08-13 | LTE broadband dual-polarization antenna oscillator |
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| CN202839949U true CN202839949U (en) | 2013-03-27 |
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| CN 201220400843 Expired - Fee Related CN202839949U (en) | 2012-08-13 | 2012-08-13 | LTE broadband dual-polarization antenna oscillator |
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| CN103401062A (en) * | 2013-08-13 | 2013-11-20 | 南京澳博阳射频技术有限公司 | Dual-polarized broadband radiating element used on TD-LTE intelligent antenna |
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