CN101604791A - A kind of multi-antenna radio equipment and communication means and antenna - Google Patents
A kind of multi-antenna radio equipment and communication means and antenna Download PDFInfo
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- CN101604791A CN101604791A CNA200810124929XA CN200810124929A CN101604791A CN 101604791 A CN101604791 A CN 101604791A CN A200810124929X A CNA200810124929X A CN A200810124929XA CN 200810124929 A CN200810124929 A CN 200810124929A CN 101604791 A CN101604791 A CN 101604791A
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Abstract
A kind of multi-antenna radio communication means, a kind of multi-antenna radio equipment is proposed, comprise radio transmission apparatus and radio system, described radio transmission apparatus comprises whiplike or the dipole emission antenna, described radio system comprises whiplike or the dipole reception antenna, it is that described transmitting antenna and described reception antenna are independent each other, and described reception antenna is placed on the position that bigger isolation is arranged with described transmitting antenna.Propose a kind of multi-antenna radio device antenna again, it is that the feed line of described transmitting antenna and the feed line of described transmitting antenna pass in antenna oscillator.Adopt technical scheme of the present invention, realize that the utmost point divides or Space Division Duplex, realize that the utmost point divides or space division multiple access.
Description
Technical field
The invention relates to radio communication technology, especially propose a kind of multi-antenna radio equipment and communication means and antenna.
Technical background
The development of radio communication technology makes mobile communication obtain great application popularization.In order to solve the needs of radio two way communication, general at present employing time division duplex (TDD) or Frequency Division Duplexing (FDD) (FDD), the utmost point divide duplex; In order to solve the needs of radio multiple access communication, adopt frequency division multiple access, time division multiple access, code division multiple access, space division multiple access in addition.
General radio wave is used always horizontal polarized wave or vertically polarized wave, also has spiral polarized wave etc.
The polarization mode of the radio wave of wireless device emission is relevant with sending antenna structure or working method, or directly relevant with the installation site of transmitting antenna.
Wireless device receives the antenna of radio wave, and its radio wave that can receive which kind of polarization is relevant with reception antenna structure or working method, or directly relevant with the installation site of reception antenna.
Microwave current communication parabolic antenna commonly used is by duplex communication of orthogonal polarization Harmonic Oscillators or multiple access communication, its dual-mode antenna structure be consubstantiality and dependent, be characterized in antenna oscillator independence and shared reflecting surface.
A kind of L shaped emission or reception antenna, level and vertical part are arranged, with the right angle electrical is the distributing point of antenna, antenna polarization can change when the ratio of 2 arm lengths changes, antenna oscillator in this antenna has vertical each other vertical dipole and horizontal dipole, is called the oscillator that belongs to an antenna.
In this specification said near parallel be close to parallel, in this specification said closely vertically be close to vertical, in this specification said near coaxial be close to coaxial.
Summary of the invention
The purpose of this invention is to provide a kind of multi-antenna radio equipment, the use technical solution of the present invention can realize the efficient radio communication of wireless device and reduce cost, adopt radio multi-antenna technology scheme of the present invention, can realize that particularly the utmost point divides or Space Division Duplex.
For achieving the above object, the present invention adopts following technical scheme: a kind of multi-antenna radio communication means, a kind of multi-antenna radio equipment is proposed, comprise radio transmission apparatus and radio system, described radio transmission apparatus comprises whiplike or the dipole emission antenna, described radio system comprises whiplike or the dipole reception antenna, it is that described transmitting antenna and described reception antenna are independent each other, and described reception antenna is placed on the position that bigger isolation is arranged with described transmitting antenna.
A kind of multi-antenna radio communication means, it is described reception antenna is placed on the axle extended line position of described transmitting antenna oscillator.
A kind of multi-antenna radio communication means, it is that described reception antenna and described transmitting antenna are equipolarization or orthogonal polarization.
A kind of multi-antenna radio communication means comprises 2 or above described transmitting antenna, and its axle extended line that is each described transmitting antenna oscillator overlaps.
A kind of multi-antenna radio communication means comprises 2 or above described transmitting antenna, comprises 2 or above described reception antenna, and its axle extended line that is described transmitting antenna oscillator and described transmitting antenna oscillator overlaps.
A kind of multi-antenna radio equipment, comprise radio transmission apparatus and radio system, described radio transmission apparatus comprises whiplike or the dipole emission antenna, described radio system comprises whiplike or the dipole reception antenna, it is that described transmitting antenna and described reception antenna are independent each other, and described transmitting antenna oscillator axis and described reception antenna oscillator parallel axes or nearly parallel placement.
A kind of multi-antenna radio equipment, comprise radio transmission apparatus and radio system, described radio transmission apparatus comprises whiplike or the dipole emission antenna, described radio system comprises whiplike or the dipole reception antenna, it is that described transmitting antenna and described reception antenna are independent each other, and described transmitting antenna oscillator axis and described reception antenna oscillator axis normal or nearly vertical placement.
A kind of multi-antenna radio equipment, comprise radio transmission apparatus and radio system, described radio transmission apparatus comprises whiplike or the dipole emission antenna, described radio system comprises whiplike or the dipole reception antenna, it is that described transmitting antenna and described reception antenna are independent each other, and described transmitting antenna oscillator when being placed as horizontal polarization described reception antenna oscillator be in perpendicular polarization or nearly perpendicular polarization position.
A kind of multi-antenna radio equipment, it is that described transmitting antenna oscillator axis and described reception antenna oscillator axis are level or nearly horizontal positioned.
A kind of multi-antenna radio equipment, it is that described transmitting antenna oscillator axis is vertical with described reception antenna oscillator axis or nearly vertical the placement.
A kind of multi-antenna radio equipment, it is to place about described transmitting antenna oscillator and described reception antenna oscillator.
A kind of multi-antenna radio equipment, it is that described transmitting antenna oscillator and described reception antenna oscillator place up and down.
A kind of multi-antenna radio equipment, it is that distance is 0 wavelength to 5 wavelength between described transmitting antenna oscillator feed end and described reception antenna oscillator feed end.
A kind of multi-antenna radio equipment, it is that described transmitting antenna oscillator axis and described reception antenna oscillator axis spacing are from being 0 wavelength to 5 wavelength.
A kind of multi-antenna radio equipment, it is that described transmitting antenna or described reception antenna are Yagi antenna or loop aerial or Cassegrain antenna or backfire antenna or one of dielectric antenna or magnetic ferrites (bar magnet) antenna.
A kind of multi-antenna radio equipment is characterized in that described wireless device has one and more than one transmitting antenna is arranged and one or more reception antenna is arranged.
A kind of multi-antenna radio equipment, it is that this equipment is fixed wireless device, or is mobile telephone base station equipment, or is portable wireless apparatus, or is one of mobile phone handsets equipment.
A kind of multi-antenna radio device antenna, comprise whiplike or dipole emission antenna and feed connection thereof, whiplike or dipole reception antenna and feed connection thereof, also comprise the support that connects described transmitting antenna and described reception antenna, it is described reception antenna is placed on the axle extended line position of described transmitting antenna oscillator.
A kind of multi-antenna radio device antenna, described transmitting antenna and described reception antenna are independent each other, and it is that described reception antenna and described transmitting antenna are equipolarization or orthogonal polarization.
A kind of multi-antenna radio device antenna, it is described transmitting antenna oscillator axis and described reception antenna oscillator axis or nearly parallel placement.
A kind of multi-antenna radio device antenna, it is described transmitting antenna oscillator axis and described reception antenna oscillator axis normal or nearly vertical placement.
A kind of multi-antenna radio device antenna comprises 2 or above described transmitting antenna, and its axle extended line that is each described transmitting antenna oscillator overlaps.
A kind of multi-antenna radio device antenna comprises 2 or above described transmitting antenna, comprises 2 or above described reception antenna, and its axle extended line that is described transmitting antenna oscillator and described transmitting antenna oscillator overlaps.
A kind of multi-antenna radio device antenna, it is that the feed line of described transmitting antenna and the feed line of described transmitting antenna pass in antenna oscillator.
The solution of the present invention has advantage and effect is:
1, radio transmission and receiving equipment do not use expensive duplexer, just can realize with duplex or alien frequencies duplex communication frequently;
2, multi-antenna radio equipment provided by the present invention can be realized high-quality radio communication;
3, can realize that the utmost point divides multiple access, space division multiple access;
4, multi-antenna radio equipment provided by the present invention is best suited for time division duplex communication, also is applicable to frequency duplex communications simultaneously.
Description of drawings
Accompanying drawing 1 is 2 transmitting antenna oscillator axis in the multi-antenna radio equipment and the reception antenna oscillator axis horizontal polarization dipole antenna schematic diagram placed of coaxial line each other, because the directional diagram of reception antenna 1R is very little in the antenna gain of transmitting antenna 1T locality, so transmitting antenna and the reception antenna of placing has bigger isolation like this.
Accompanying drawing 2 is perpendicular polarization dipole antenna schematic diagrames of 2 antenna oscillators coaxial line placement each other in the multi-antenna radio equipment, because the directional diagram of reception antenna 1R is very little in the antenna gain of transmitting antenna 1T locality, so transmitting antenna and the reception antenna of placing has bigger isolation too like this.
Accompanying drawing 3 is in the multi-antenna radio equipment 2 orthogonal polarization dipole element antenna schematic diagrames each other, transmitting antenna 1T directional diagram is very little in the antenna gain of reception antenna 1R locality, transmitting antenna of Fang Zhiing and reception antenna have bigger isolation like this, in addition more owing to transmitting antenna and receiving polarization quadrature, so transmitting antenna and reception antenna have very big isolation.
Accompanying drawing 4 is that 2 wireless devices use the perpendicular polarization twin whip antenna to carry out the duplex communication schematic diagram, 1T and 1R are respectively the transmitting antenna and the reception antenna of first wireless device, 2T and 2R are respectively the transmitting antenna and the reception antenna of the 2nd wireless device, owing between the transmitting antenna of each equipment and reception antenna bigger isolation is arranged, so 2 wireless devices can carry out normal communication.
Accompanying drawing 5 is that 2 wireless devices uses have perpendicular polarization whip antenna and horizontal polarization whip antenna to carry out the duplex communication schematic diagram, 1T and 1R are respectively the transmitting antenna and the reception antenna of first wireless device, 2T and 2R are respectively the transmitting antenna and the reception antenna of the 2nd wireless device, owing between the transmitting antenna of each equipment and reception antenna very big isolation is arranged, so 2 wireless devices can carry out normal communication.
Many perpendicular polarizations whip antenna schematic diagram that accompanying drawing 6 is, 1T and 1R are respectively the transmitting antenna and the reception antenna of first group of wireless device, 2T and 2R are respectively the transmitting antenna and the reception antenna of the 2nd group of wireless device, because each antenna is coaxial line and places, each is organized between the transmitting antenna of equipment and reception antenna very big isolation, so 2 groups of wireless devices can carry out normal communication with other wireless device.A kind of multi-antenna radio device antenna in the accompanying drawing 6, the feed line of transmitting antenna and the feed line of described transmitting antenna pass in antenna oscillator.
Embodiment
Antenna coaxial line of the present invention is meant the coaxial extended line of antenna dipole element or whiplike oscillator.When antenna was Yagi antenna or Cassegrain antenna or backfire antenna or dielectric antenna or magnetic ferrites (bar magnet) antenna, coaxial line also was meant the axle extended line of its antenna oscillator.What coaxial line placement was each other said is to place at the coaxial extended line of antenna oscillator.
Accompanying drawing 1 is horizontal polarization dipole (or whiplike) antenna of 2 coaxial line placements each other of a multi-antenna radio equipment, one of them is a transmitting antenna, another is a reception antenna, and between 2 antennas certain distance is arranged, 0.5 to 5 wavelength distance for example, because the gain of 2 axis directions of horizontal polarization dipole (or whiplike) antenna oscillator is zero, according to the broesight of antenna, sending frequency when wherein transmitting antenna is f
0Signal the time, another reception antenna can not receive that it is f that described transmitting antenna sends frequency
0Signal.Above-mentioned multi-antenna structure has been realized duplexer functionality, has solved the emission of wireless device and the needs that received signal is isolated.
Accompanying drawing 2 is perpendicular polarization dipole (or whiplike) antennas of 2 coaxial line placements each other of a multi-antenna radio equipment, if one of them is a transmitting antenna, another is a reception antenna, and between 2 antennas certain distance is arranged, because the gain of 2 end axis directions of perpendicular polarization dipole (or whiplike) antenna is zero, according to the broesight of antenna, sending frequency when wherein transmitting antenna is f
0Signal the time, another reception antenna can not receive that it is f that described transmitting antenna sends frequency
0Signal.Above-mentioned antenna structure has also been realized duplexer functionality, has solved the emission of wireless device and the needs that received signal is isolated.
A kind of multi-antenna radio equipment is that described transmitting antenna and described reception antenna adopt equipolarization and coaxial line placement each other.The perpendicular polarization dipole antenna of 2 coaxial line placements each other has best Signal Spacing effect, because depart from coaxial line emission and received signal isolation are descended, but because the antenna of 2 coaxial line placements each other generally is difficult to reach accurate coaxial line in actual use, and the antenna of 2 near each other coaxial line placements is so long as generally also can reach an available collection of letters insulation request near coaxial line; Nearly coaxial line is promptly near axis, the distance dependent of size that departs from and 2 antennas, the big more then axis of the distance between antenna under certain Signal Spacing degree allow depart from size can be big more, otherwise, then allow that with axis to depart from size then more little in that the distance between antenna under certain Signal Spacing degree is more little.
A kind of multi-antenna radio equipment for example 0.5 to 5 wavelength distance of certain distance is arranged between 2 antennas, and one of them antenna feed end and another antenna oscillator axial line distance is 0 to 2 wavelength.
Accompanying drawing 3 is in the multi-antenna radio equipment 2 orthogonal polarization dipole element antennas each other, establishes wherein that transmitting antenna is the perpendicular polarization dipole antenna, and reception antenna is the horizontal polarization dipole antenna, and sending frequency when wherein transmitting antenna is f
0The perpendicular polarization signal time, root a tree name antenna operation principle, another can not receive that for horizonally polarized receiving antenna it is f that described transmitting antenna sends frequency
0The perpendicular polarization signal.Above-mentioned dual-mode antenna structure has realized duplexer functionality, because transmitting/receiving wireless electric wave quadrature further increases emission and received signal isolation.
Certain buffer action is also arranged when the transmitting antenna of wireless device and reception antenna are independent separately, better isolation effect is arranged and the antenna of orthogonal polarization each other has dual-mode antenna.
Accompanying drawing 4 is that the wireless device of antenna more than 2 carries out the duplex communication schematic diagram, each equipment has a transmitting antenna and a reception antenna respectively, transmitting antenna and reception antenna are the perpendicular polarization dipole antenna, and sending frequency when the transmitting antenna of one of them equipment is f
0Signal the time, root a tree name antenna operation principle, the reception antenna of this equipment can receive that also it is f that described oneself transmitting antenna sends frequency
0Signal, because transmitting of transmitting antenna is just to make reception antenna receive partly signal through the space, signal has certain isolation between above-mentioned dual-mode antenna positional structure transmitting antenna and the reception antenna, for example isolation has more than the 30db, relevant with 2 antenna distances), promptly also realized duplexer functionality.When transmitting antenna and reception antenna are perpendicular polarization dipole antenna position is to place up and down, and when be the coincidence of axle extended line, the isolation maximum can reach more than the 50db, and good isolation is arranged between transmitting-receiving, so realized antenna time division duplex switch.TDD radio equipment generally adopts duplexer to receive and dispatch switching at present, independently transmitting antenna and reception antenna can be cancelled the antenna receiving-sending diverter switch separately in employing, avoided switching loss again, in addition, the high-frequency antenna size is very little, the long and is to have improved the performance of wireless device and reduced cost.
The more little then isolation of like-polarized whiplike transmitting antenna of Fang Zhiing and reception antenna oscillator axle extended line distance is big more up and down, and whiplike transmitting antenna is isolation maximum when coaxial with the oscillator of reception antenna.
Wireless device transmitting antenna and reception antenna axial line distance can be 0 to 5 wavelength.
Distance is 0 to 5 wavelength between wireless device transmitting antenna and reception antenna feed end.
For the Frequency Division Duplexing (FDD) mode, adopt the transmitting antenna of above-mentioned separation and dipole (or whiplike) antenna that reception antenna is perpendicular polarization, 2 antennas are for placing (the axle extended line overlaps) up and down, can reduce requirement greatly, help improving product communication equipment performance and reduce manufacturing cost again duplexer filter.
Described a kind of multi-antenna radio equipment is that described wireless device has one or more transmitting antenna and one or more reception antenna is arranged.A plurality of antennas are used for the diversity emission or receive, and also can realize multichannel communication.
A kind of multi-antenna radio equipment, described 2 transmitting antenna orthogonal polarizations and one of them antenna are on another antenna axis extended line.
In order to realize the multicarrier emission, a method is to carry out carrier wave to close the road in transmitter or in antenna feeder, and this mode can cause to produce closes the path loss mistake, and the mixer cost is higher in addition.Because the high frequency antenna size is less, adopts multi-antenna technology of the present invention, the stand-alone antenna cost is little, do not have and close the path loss mistake, and mutual interference is little between the antenna of nearly coaxial line placement.
Described a kind of multi-antenna radio equipment is that the dual-mode antenna of perpendicular polarization is settled up and down, or the dual-mode antenna horizontal setting of horizontal polarization, and dual-mode antenna should be settled for coaxial line as far as possible, to improve isolation.
A kind of multi-antenna radio device antenna in the accompanying drawing 6, the feed line of transmitting antenna and the feed line of described transmitting antenna pass in antenna oscillator.This Wiring structure can not influence antenna performance because of feed line applicable to more combination of antennas.
Described a kind of multi-antenna radio equipment, described transmitting antenna or described reception antenna are Yagi antenna or loop aerial or Cassegrain antenna or backfire antenna or dielectric antenna or magnetic ferrites (bar magnet) antenna.
Described a kind of multi-antenna radio equipment, this equipment is stationary wireless device.
Described a kind of multi-antenna radio equipment, this equipment is mobile telephone base station.
Described a kind of multi-antenna radio equipment, this equipment is portable radio device.
Described a kind of multi-antenna radio equipment, this equipment is mobile phone handsets.
Claims (10)
1. multi-antenna radio communication means, a kind of multi-antenna radio equipment is proposed, comprise radio transmission apparatus and radio system, described radio transmission apparatus comprises whiplike or the dipole emission antenna, described radio system comprises whiplike or the dipole reception antenna, it is characterized in that described transmitting antenna and described reception antenna are independent each other, and described transmitting antenna oscillator axis and described reception antenna oscillator parallel axes or nearly parallel placement.
2. multi-antenna radio equipment, comprise radio transmission apparatus and radio system, described radio transmission apparatus comprises whiplike or the dipole emission antenna, described radio system comprises whiplike or the dipole reception antenna, it is characterized in that described transmitting antenna and described reception antenna are independent each other, and described transmitting antenna oscillator axis and described reception antenna oscillator parallel axes or nearly parallel placement.
3. multi-antenna radio communication means, a kind of multi-antenna radio equipment is proposed, comprise radio transmission apparatus and radio system, described radio transmission apparatus comprises whiplike or the dipole emission antenna, described radio system comprises whiplike or the dipole reception antenna, it is characterized in that described transmitting antenna and described reception antenna are independent each other, and described transmitting antenna oscillator axis and described reception antenna oscillator axis normal or nearly vertical placement.
4. multi-antenna radio equipment, comprise radio transmission apparatus and radio system, described radio transmission apparatus comprises whiplike or the dipole emission antenna, described radio system comprises whiplike or the dipole reception antenna, it is characterized in that described transmitting antenna and described reception antenna are independent each other, and described transmitting antenna oscillator axis and described reception antenna oscillator axis normal or nearly vertical placement.
5. multi-antenna radio communication means, a kind of multi-antenna radio equipment is proposed, comprise radio transmission apparatus and radio system, described radio transmission apparatus comprises whiplike or the dipole emission antenna, described radio system comprises whiplike or the dipole reception antenna, it is characterized in that described transmitting antenna and described reception antenna are independent each other, and described transmitting antenna oscillator when being placed as horizontal polarization then described reception antenna oscillator be placed as perpendicular polarization or nearly perpendicular polarization position.
6. multi-antenna radio equipment, comprise radio transmission apparatus and radio system, described radio transmission apparatus comprises whiplike or the dipole emission antenna, described radio system comprises whiplike or the dipole reception antenna, it is characterized in that described transmitting antenna and described reception antenna are independent each other, and described transmitting antenna oscillator when being placed as horizontal polarization then described reception antenna oscillator be placed as perpendicular polarization or nearly perpendicular polarization position.
7. according to the described a kind of multi-antenna radio equipment of claim 1, it is characterized in that described transmitting antenna oscillator axis and described reception antenna oscillator axis are level or nearly horizontal positioned.
8. according to the described a kind of multi-antenna radio equipment of claim 1, it is characterized in that described transmitting antenna oscillator axis is vertical with described reception antenna oscillator axis or nearly vertical the placement.
9. multi-antenna radio device antenna, comprise whiplike or dipole emission antenna and feed connection thereof, whiplike or dipole reception antenna and feed connection thereof, also comprise the support that connects described transmitting antenna and described reception antenna, it is characterized in that described reception antenna is placed on the axle extended line position of described transmitting antenna oscillator.
10. according to the described a kind of multi-antenna radio device antenna of claim 9, comprise 2 or above described transmitting antenna, comprise 2 or above described reception antenna, the axle extended line of described transmitting antenna oscillator and described transmitting antenna oscillator overlaps, and it is characterized in that the feed line of described transmitting antenna and the feed line of described transmitting antenna pass in antenna oscillator.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA200810124929XA CN101604791A (en) | 2008-06-09 | 2008-06-09 | A kind of multi-antenna radio equipment and communication means and antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA200810124929XA CN101604791A (en) | 2008-06-09 | 2008-06-09 | A kind of multi-antenna radio equipment and communication means and antenna |
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| CNA200810124929XA Pending CN101604791A (en) | 2008-06-09 | 2008-06-09 | A kind of multi-antenna radio equipment and communication means and antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103595520A (en) * | 2012-08-16 | 2014-02-19 | 华为技术有限公司 | Communication device and space-division duplex method thereof |
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Application publication date: 20091216 |