CN101228665B - There is the antenna assembly of interleaved antenna unit - Google Patents
There is the antenna assembly of interleaved antenna unit Download PDFInfo
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- CN101228665B CN101228665B CN200680026861.0A CN200680026861A CN101228665B CN 101228665 B CN101228665 B CN 101228665B CN 200680026861 A CN200680026861 A CN 200680026861A CN 101228665 B CN101228665 B CN 101228665B
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Abstract
The present invention proposes a kind of antenna assembly that may be connected to send and receive RF signal on transceiver in the separate frequency band of at least two.This antenna assembly has the antenna element that at least two groups are arranged on reflector, and these days, line element was arranged in interconnected along single row.The two separate frequency band substantially non-overlapping but be relatively close together, in described row between adjacent antenna element along row distance essentially identical.
Description
Technical field
The present invention relates to for multiband operation especially for mobile communication system have interleaved antenna unit antenna
Device, as described in the introduction of claim 1.The invention still further relates to fit through the aerial system that communication link communicates with base station
System.
Background technology
In mobile communication system, the current antenna array being used for sending and receiving RF (radio frequency) signal is typically dedicated to single
Frequency band or be two or more frequency bands sometimes.Single-band antenna is used for long time, generally includes multiple arrangement
Become the antenna element of vertical row.If the operator in network wants separately to increase a frequency band by single-band antenna, it is necessary to
A line the second row antenna element it is further added by by the first row antenna element.But, this needs enough spaces to realize, and this sky is traditional thread binding
Put the interference sensitivity being also possible between the signal of different frequency bands.
The device 10 of the prior art that these shortcomings have been schematically shown by accompanying drawing 1A and 1B the most solves.
In figure ia, it is shown that two kinds of antenna elements 11,12 are alternately arranged to string.First antenna unit 11 is can be at two
The double frequency band aerial unit of work in different frequency bands FB1 and FB2, and the second antenna element 12 is can only to work in a frequency band FB1
Antenna element.
The shortcoming of the embodiment of this prior art be frequency band FB1 and FB2 due to constitute the parts of antenna element 11 very close to
And intercouple.
Therefore, this configuration is only applicable to the frequency of the situation that frequency band spacing is big, such as FB2 and is approximately the twice of FB1.As
Really frequency band is too close to, be necessary at closely antenna element use high q-factor wave filter, such as use occupy the least space and
Uneconomical and the heaviest cavity filter.
Prior-art devices shown in Figure 1B, as disclosed in US 6,211,841 (Nortel), is arranged in two by including
The first antenna unit 11a worked in the first relatively low frequency band in individual parallel row 13a, 14a and be alternately located at two
The array of adjacent the second antenna element 12a worked in the second higher frequency band in row 13a, 15a is formed.The two is adjacent
A row (13a) in row is same row with row in two row of configuration first antenna unit 11a.Due to by antenna element
11a, 12a are arranged in parallel, next-door neighbour spaced apart row, it is thus possible to realize even frequency band be relatively close together (until
About 2/3) the of a sufficiently low coupling between frequency band.
US 6,844,863 B2 (Andrew company) discloses a kind of device with staggered arrays of antenna elements.Here,
Each array specially intercouples in a common band.
It is therefore desirable to have a kind of can work in two or more frequency bands and coupling between frequency band obtain reducing new
Antenna assembly, this antenna assembly need not use close to the wave filter of antenna element, if or need to use wave filter, make
By the little wave filter of Q-value, such as micro-strip or strip line filter, this filter size is little and implements both economical.
Summary of the invention
It is an object of the invention to provide a kind of multiband antenna apparatus and antenna system, compared with the antenna of prior art,
The coupling between different frequency bands can be reduced, the most also make requisite space be minimized.
This purpose be with a kind of can be connected with transceiver for sending and receive the separate frequency field of at least two
The multiband antenna apparatus of interior RF signal realizes.This antenna assembly has the antenna that at least two groups are arranged on reflector
Unit.First group of antenna element works in first frequency region, forms a line, and second group of antenna element work in second frequency region
Make, also form a line.According to the present invention, first and second groups of antenna elements are interconnected point-blank, form single row, institute
Stating the first and second frequency fields and include the first and second frequency bands respectively, they are separate and substantially non-overlapping, but
It is relatively close together, and along the basic phase of distance of described row between the adjacent antenna unit worked in the inherent different frequency bands of described row
With and be less than the wavelength X of the mid frequency of high frequency band in described first and second frequency bands.
This purpose is also fitted through, by a kind of, the antenna system realization that communication link communicates with base station.This antenna system
Including antenna assembly, and control the signal of antenna element that is sent in described antenna assembly and the sky in described antenna assembly
The phase place of the signal that line element receives and the device of amplitude.
According to a preferred embodiment of the invention, the 3rd worked in the single row of antenna element are additionally included in the 3rd frequency field
Group antenna element, the 3rd frequency field includes separating with described first and second frequency bands and non-overlapping 3rd frequency band, the 3rd frequency
The mid frequency of band is higher or lower than the mid frequency of described first and second frequency bands.
According to a preferred embodiment of the invention, described second and the antenna element of the 3rd group is each is all located at described first group
Between two adjacent antenna elements.
According to a preferred embodiment of the invention, the antenna element of the 3rd group is arranged on different from the antenna element of first and second groups
Position, the 3rd group of antenna element is also interconnected between the antenna element of first and second groups.
Additionally, according to a preferred embodiment of the invention, the coupling between separate frequency band by adjacent antenna element it
Between provide restraining device and be suppressed, wherein restraining device is parasitic antenna.
It is an advantage of the invention that the isolation that can obtain between frequency band more than 30dB, even if frequency band close to each other also without
Use cavity filter.
Yet another advantage of the present invention is that and be easy to configure the antenna with desired frequency band selection.
The present invention to be a further advantage in that this antenna assembly can be made less than the device of prior art.
Technical staff from described further below it will be clear that other purposes of the present invention and advantage.
Accompanying drawing explanation
Figure 1A shows the schematic diagram of the antenna device for dual frequency bands of prior art；
Figure 1B schematically shows another dual band arrangement of prior art；
Fig. 2 A shows the schematic diagram of antenna device for dual frequency bands designed according to this invention；
Fig. 2 B shows the modified model of the device of Fig. 2 A；
Fig. 2 C is exemplified with the separation situation of two frequency bands for antenna device for dual frequency bands；
Fig. 3 shows the perspective view of the first embodiment of antenna device for dual frequency bands designed according to this invention；
Fig. 4 shows the perspective view of the second embodiment of antenna device for dual frequency bands；
Fig. 5 shows the perspective view of the 3rd embodiment of antenna device for dual frequency bands；
Fig. 6 shows the perspective view of the first embodiment of multiband antenna apparatus；
Fig. 7 shows the schematic diagram of the multiband antenna apparatus shown in Fig. 6；
Fig. 8 is the square frame being illustrated in the signal path in the antenna system including antenna assembly designed according to this invention
Figure；
Fig. 9 shows the schematic diagram of the second embodiment of the multiband antenna arrays including additional filter；
Figure 10 shows the schematic diagram of the 3rd embodiment of multiband antenna arrays；And
Figure 11 shows the antenna system including multiband antenna designed according to this invention.
Detailed description of the invention
Have been described in the technical background of the present invention above the antenna assembly of the prior art shown in Figure 1A and 1B.
Fig. 2 A shows can include two frequencies of the first and second frequency band FB1 and FB2 designed according to this invention
The schematic diagram of the antenna device for dual frequency bands 20 of work in region, the two frequency band is separate, substantially non-overlapping, but phase
The most relatively.At lower band FB1The antenna element 21 (solid line is marked) of interior work is the first kind, and in high frequency band FB2
The antenna element 22 (dotted line is marked) of interior work is Second Type.
Modified model antenna device for dual frequency bands 25 shown in Fig. 2 B is substantially identical with shown in Fig. 2 A, the only difference is that friendship
Fork poliarizing antenna first 26 is staggered with linear y polarised antenna unit 27.
Fig. 2 C is exemplified with the situation of the two frequency band " substantially non-overlapping ".Antenna element 21 in lower frequency ranges
Input reflection coefficient S parameter S of (Fig. 2 A)11Represent, and the input reflection coefficient C of the antenna element 22 in lower frequency range
Parameter S22Represent.It practice, reflection coefficient should be less than-15dB (Rmax).Additionally, the cross-coupling coefficient between two frequency bands
Also should be the least, e.g., less than-20dB (Cmax).Use these standards, working band FB can be defined1And FB2, schematically such as figure
Shown in 2C.Therefore, although corresponding frequencies actually part is overlapping, but selected frequency band FB1And FB2Be be separated from each other, mutual district
Point.
First and second frequency bands should have a mid frequency of following relation:
2/3 ＜ f1/f2 ＜ 3/2, f1 ≠ f2
And the representative instance of possible mid frequency has:
F1=850MHz, f2=900MHz；
F1=1800MHz, f2=2000MHz；
F1=1900MHz, f2=2100MHz；
F1=2000MHz, f2=2500MHz.
These days, line element can be sticking patch, dipole, cross polarised antenna unit, medium resonator antenna (DRA) or technology
Personnel can the antenna element of any other type.The basic feature of the present invention is each antenna element only work in a frequency band
Making, these days, line element was the most single-row interconnected on reflector, as shown in Figure 2.
Fig. 3,4 and 5 show the different embodiments of situation shown in Fig. 2.
Fig. 3 shows antenna device for dual frequency bands 30, and it has first kind antenna element 31, it is achieved at lower band FB1
The double patch antenna unit of interior transmission and reception.Second Type antenna element 32 is embodied as in high frequency band FB2Interior transmission and reception
Patch antenna unit.The example of lower band can be 1710-2170MHz, and the example of high frequency band can be 2.5-2.7GHz.This
Two kinds of antenna elements are that one skilled in the art is well-known.
As distance " X " between the center of two adjacent antenna elements for all antenna elements in array is substantially
, for illustrated hereinabove frequency band, at the 0.3-0.7 λ wavelength of the mid frequency of high frequency band in two frequency bands (λ be) or
Say within the scope of 28-54mm.The first distance " y " between the antenna element 31 worked in the same frequency band of lower band exists
Within the corresponding distance range of 0.5-0.9 λ of the wavelength (λ) of the mid frequency of (relatively low) frequency band.Similar, in high frequency band
Second distance " z " between the antenna element 32 of interior work is at the 0.5-0.9 with the wavelength (λ) of the mid frequency of (higher) frequency band
Within the corresponding distance range of λ.Distance y can be different from distance z, but owing to this can cause undesirable impact, the most excellent
Choosing is that distance y is equal to z.Such as, y and z elects about 100mm as.
Contain the biggest antenna element in conjunction with Fig. 3 embodiment described, and may relate at two antenna elements mutual
The problem that there will be graing lobe when being arranged to too remote.
This problem is just considered in the embodiment shown in Figure 4 and 5.
Figure 4 illustrates the perspective view of the second embodiment 40 of dual band antenna array.Dual band antenna array 40 is containing two
Planting antenna element, first kind antenna element 41 is for lower band, and Second Type antenna element 42 is for high frequency band.Such as, first
41 RF signals received in the range of 1920-1980MHz of type antenna unit, and Second Type antenna element 42 is only sent in
RF signal in the range of 2110-2170MHz, leaves the rejection band of 130MHz between the two frequency band.Therefore, UMTS frequency band
Traditional antenna be replaced with have be respectively used to Rx frequency band and Tx frequency band stand-alone antenna unit double frequency band aerial, such that it is able to
Realize Tx and the Rx radio channel simplified.
Both antenna elements 41 and 42 are made up of the DRA (medium resonator antenna) more small than traditional patch antenna.
It is that, compared with other kinds of antenna element, DRA has narrower bandwidth, but if is only used for receiving or sending out by the shortcoming of DRA
Sending, they can work in the way of satisfied requirement.Compared with patch antenna unit as described with respect to fig. 3, the size of DRA is permissible
Greatly reduce the graing lobe of appearance, because line element can be arranged to mutually the most more these days compared with the antenna element combined illustrated by Fig. 2
For close.
Figure 5 illustrates the perspective view of the 3rd embodiment of dual band antenna array 50.Dual band antenna array 50 is containing two
Planting antenna element, first kind antenna element 51 is for lower band, and Second Type antenna element 52 is for high frequency band.Such as, first
Type antenna unit 51 sends and receives the RF signal in the range of 1710-2170MHz, with the antenna element 31 combined illustrated by Fig. 3
Similar.Second Type antenna element 52 sends and receives the RF signal in the range of 2.5-2.7GHz, this frequency band and antenna element 32
(Fig. 3) working band is identical.
Difference between antenna element 32 explained above and antenna element 52 is the type of antenna element used.Combining figure
In the 3rd embodiment illustrated by 5, DRA is used as Second Type antenna element.Although DRA perhaps narrow bandwidth some, but second day
Line element is enough to ensure that normal work.In order to reduce the coupling (thus reducing the demand to wave filter) between adjacent antenna unit,
Add barrier shield 53 between each antenna element 51,52, and distance (x, y and z) has kept and combines as illustrated by Fig. 3.
Preferably, by medium resonator antenna (DRA) for high frequency band, because its bandwidth is narrow.
Fig. 6 and 7 shows the embodiment of the multiband antenna arrays 60 including three different frequency bands of the present invention.This is implemented
Example includes three types antenna element, and first kind antenna element 61 is for lower band FB1, Second Type antenna element 62 is for centre
Frequency band FB2, the third antenna element 63 is for higher (or lower) frequency band FB3.As an example, can there is following mid frequency
Some combinations of f1, f2, f3:
F1=850MHz, f2=900MHz, f3=1800MHz；
F1=850MHz, f2=900MHz, f3=1900MHz；
F1=850MHz, f2=900MHz, f3=2000MHz；
F1=1800MHz, f2=2000MHz, f3=2500MHz；
F1=1800MHz, f2=2000MHz, f3=2500MHz；
F1=2000MHz, f2=2500MHz, f3=900MHz.
There are five patch antenna units 61, wherein have three square DRA 62 to interlock with minimum three patch antenna units 61,
Three circular DRA 63 are had to interlock with three patch antenna units 61 topmost.Material is thus formed single row, there are 11 friendships
Wrong antenna element, works in three separate frequency bands.Owing to DRA, therefore just can add between each antenna element in row
Barrier shield 64, to minimize graing lobe.
Distance between adjacent antenna unit is substantially identical with combine illustrated by Fig. 3.Two adjacent antenna unit centers it
Between spacing " x " for all antenna elements in row substantially the same.Preferably, two skies being operated in lower band
The first distance " y " between line element 61 is the 0.5-0.9 λ phase of the mid frequency (in this example for 1940MHz) with lower band
The distance answered.Preferably, the second distance " z " between two antenna elements 62 being operated in intermediate frequency band is and intermediate frequency band
The corresponding distance of 0.5-0.9 λ of mid frequency (being 2.35GHz in this example).Preferably, it is operated in high frequency band
The 3rd distance " w " between two antenna elements 63 is the 0.5-of the mid frequency (in this example for 2.6GHz) with high frequency band
The 0.9 corresponding distance of λ.
Distance y, z and w can be the most somewhat different, but owing to this will cause undesirable result, it is therefore preferred to away from
The most equal from y, z and w.
Fig. 8 is the block diagram illustrating the signal path in antenna system 80 designed according to this invention.These signal paths
Being segmented into transmission path Tx and receiving path Rx, they are received on each antenna element 81 and 82 as depicted or receive one
On individual common antenna unit (not shown).
Receiving path Rx includes the band filter BP leaching desired radio frequency (RF) frequency band1Optional with connected in series
Low pass filter LP, for before filtered RF signal feed-in low-noise amplifier LNA eliminate spurious resonance.Amplified
RF signal become IF (intermediate frequency) signal by local oscillator LO with frequency mixer 83 frequency displacement.Hereafter, IF signal is with including analog to digital conversion
The device of device (ADC) is transformed into digital signal.
Fig. 8 shows three different arrangements.First option includes whole RF band converteds are become 16s/c (sampling/code
Sheet) the broadband A/D changer W/ADC of digital stream.Second option includes that whole RF band converteds are become 16s/c by together
The carrier wave A/D changer SC/ADC of digital stream.
16s/c digital signal in first and second options then feed-in digital filter DF and digital down converter DDC.
DDC is fed to after the signal of 16s/c is transformed into the signal of 7s/c to receive control signal (preferably digital form) numeral
Phase shifter DPS.Control signal is that the communication line by such as optical fiber 85 etc receives from the base station (not shown) connected
's.The DPS phase place to digitised IF signalIt is controlled with amplitude alpha.Signal and the antenna optional from other from DPS
The signal feed-in summation module together 84 of unit.
The 3rd option that IF signal is transformed into digitized signal includes that analog phase shifter APS, analog phase shifter APS are presented
There is the control signal that the communication line by such as optical fiber 85 etc receives from the base station (not shown) connected (preferably
Analog form).APS controls the phase place of IF signalAnd amplitude alpha, they are through the numeral translating the signals into into 16s/c below
The A-D converter ADC digital of stream.Under 16s/c digital signal in 3rd option then feed-in digital filter DF and numeral
Changer DDC.DDC presents after the signal of 16s/c is transformed to the signal of 7s/c together with the signal from other optional antenna elements
Enter summation module 84.
Hereafter, digital I and the Q signal of 2s/c is sent to base station by optical fiber 85.Can be used by the communication of optical fiber
CPRI standard communication protocol.
The digital I of the 1s/c that base station also will send and Q signal are supplied to separator 86.Signal can be with numeral or simulation
Mode is controlled, and both of which will illustrate in conjunction with Fig. 8.
In digital option, the signal from separator 86 is fed to digital phase shifter DPS, and it is provided with digital control
Signal is with the phase place sending signal sent base station by optical fiber 85It is controlled with amplitude alpha.Then signal is fed to use
Then it is connected with digital sending signal in the device 87 of digital up conversion DUC, methods of digital predistortion PDP and Crest Factor Reduction CFR.
Signal is transformed to 16s/c from 7s/c by DUC.DPD is used for making signal become linear signal after amplification, and CFR is used for limiting letter
Number interior peak value, to optimize the performance of amplifier AMP.Hereafter this digital signal is located in digital-to-analog converter DAC
Reason, becomes IF and sends signal.
In simulation option, then signal is fed to the device 87 for digital up conversion DUC, methods of digital predistortion PDP and
Crest Factor Reduction CFR is connected with digital sending signal subsequently.Hereafter digital signal is located in digital to analog converter DAC
Reason, becomes IF and sends signal, then be fed to be provided with the analog phase shifter APS of analog control signal, to pass through from base station
The phase place sending signal that optical fiber 85 transmitsIt is controlled with amplitude alpha.
Signal is then by utilizing local oscillator LO to become RF to send signal with frequency mixer 88 frequency displacement.RF sends signal rear
Amplified in being connected to the amplifier AMP of optional filter F.The most end of transmission path is band filter BF2, by sky
Line element 82 selects desired radio frequency band before sending.RF signal is at band filter BF2Front detected, use local oscillator
LO becomes IF feedback signal with frequency mixer 89 frequency displacement.IF feedback signal digital to analog converter DAC is transformed to digital signal rear feed
Enter the DPD in device 87.For transmission path, local oscillator used is same local oscillator LO.
In this example, send with different antenna elements 81,82 and receive signal, naturally it is also possible to coming with community antenna unit
Send and receive signal.
Fig. 9 shows the schematic diagram of the second embodiment 110 of multiband antenna arrays.Multiband antenna arrays 110 includes adding
Wave filter LP, BP and HP, to provide preferably isolation between working band FB1, FB2 and FB3 of antenna assembly.
Antenna assembly 110 includes that two types antenna element, first antenna unit 111 are to receive the first frequency band FB1Interior RF letter
Number and send the second frequency band FB2The double frequency band aerial unit of interior RF signal.At the first frequency band FB1The RF signal feed-in inside received
Low pass filter LP or low frequency bandpass filter, be then fed to first transceiver circuit T1.From first transceiver circuit T1
Transmission RF signal feed-in band filter BP be then fed to double frequency band aerial unit 111.
Second Type antenna element 112 is at the 3rd higher frequency band FB3Interior work, i.e. receives and sends FB3Interior RF signal.
RF signal from second transceiver circuit T2 is fed to antenna element 112 by high pass filter HP or high freguency bandpass filter,
And it is fed to second transceiver circuit from the RF signal of antenna element 112 by high pass filter HP or high freguency bandpass filter
T2.Transceiver circuit T1 and T2 is connected with base station BS (not shown).
Restraining device is rendered as the bonding jumper 113 being arranged between each antenna element 111,112, so that these days, line element was mutual
Shielding.Each bonding jumper is fixed on reflector 114 with insulation mode, such as, use insulant between bonding jumper and reflector
Insulation.Wave filter can provide the bigger isolation more than 30dB, and this structure itself is only capable of providing the isolation of 15-20dB.
In this embodiment, all antenna elements for being operated in identical frequency band are only configured with a wave filter, and
Exemplified with another embodiment in Figure 11, respectively use an independent wave filter for each antenna element.
Figure 10 shows the 3rd enforcement including three types DRA antenna element 116,117 and 118 of multiband antenna apparatus
The schematic diagram of example 115.These yuan is interconnected so that be configured with between the antenna element of two same types two dissimilar
Antenna element.Distance y, z with w are preferably identical, between adjacent antenna unit 116,117 and 118 with combine illustrated by Fig. 6
Distance x is the most equal.
The adequate measure increasing the isolation between each frequency band of multiband antenna further is shown in Figure 11.Figure 11 shows have
Such as combine illustrated by Fig. 2 A, 2B, 3,4 and 5 etc the communication system 100 of antenna device for dual frequency bands 101, each at low frequency
A low pass filter (or bandpass filtering is had in frequency band between antenna element 102 and the transceiver circuit T1 of low-frequency band of work
Device) LP, and have a high pass between each antenna element 103 worked in high frequency band and the transceiver circuit T2 of high frequency band
Wave filter (or band filter) HP.Each transceiver circuit T1, T2 have combined Fig. 8 and have been described, with the base received on PSTN
The BS that stands connects, as the professional in this technical field is well-known.
Antenna system 100 also includes the remote control electricity elevation mount RET controlled by base station BS.Executor 104 is controlled by RET
System, makes the electric angle of pitch of the lobe of antenna 101 change, as the professional in this technical field is well-known.
If antenna assembly 101 includes the antenna assembly more than two frequency bands, the such as enforcement shown in Fig. 6,7,9 and 10
Example, each antenna element being operated in intermediate frequency band is equipped with a band filter, to increase with relatively low and high frequency band
Isolation.These wave filter can provide the bigger isolation more than 30dB, and this structure itself be only capable of being given 15-20dB every
From.
The feed of antenna element can include can be used for various contemplated such as patch antenna, DRA, dipole antenna, friendship
The probe feed of antenna element of fork poliarizing antenna etc, aperture feed.
Claims (21)
1. one kind may be connected on transceiver, traditional thread binding for sending and receive the sky of RF signal in the separate frequency band of at least two
Putting, described antenna assembly has two groups of interconnected antenna elements on reflector, and wherein first group of antenna element is arranged in string
And work in first frequency region, and second group of antenna element is also arranged in string and works in second frequency region,
Described antenna assembly is characterised by:
Described first group of antenna element and second group of antenna element are arranged on described straight line alternately along straight line, are formed
Single row；
Described first frequency region and second frequency region include the first frequency band and the second frequency band respectively, they be separate and
Substantially non-overlapping, but be relatively close together, and the most each antenna element only works in a frequency band；And
In described single row in described first group of antenna element and described single row of described first band operation its adjacent
Distance between described second group of antenna element of described second band operation is identical along described single row, and less than described first
The wavelength X of the mid frequency of high frequency band in frequency band and the second frequency band.
2. according to the antenna assembly described in claim 1, wherein said first frequency band and mid frequency f1 and f2 of the second frequency band
Between have a following relation:
2/3 ＜ f1/f2 ＜ 3/2；And
F1 from f2 is different.
3. according to the antenna assembly described in claim 1, described distance (x) between adjacent antenna element in wherein said single row
In the range of 0.3-0.7 λ.
4. according to the antenna assembly described in claim 3, described distance (x) between adjacent antenna element in wherein said single row
In the range of 28-54mm.
5. according to the antenna assembly described in claim 2, wherein said first frequency band and mid frequency f1 and f2 of the second frequency band
There is the value of one of following combination:
F1=850MHz, f2=900MHz；
F1=1800MHz, f2=2000MHz；
F1=1900MHz, f2=2100MHz；
F1=2000MHz, f2=2500MHz.
6., according to the antenna assembly described in claim 1, wherein said antenna assembly also has a 3rd group of antenna element, and the described 3rd
Group antenna element is also arranged in the single row of described antenna element and works in the 3rd frequency field, described 3rd frequency field
Including separating with described first frequency band and the second frequency band and non-overlapping 3rd frequency band, the mid frequency of described 3rd frequency band
Higher or lower than described first frequency band and the mid frequency of the second frequency band.
7., according to the antenna assembly described in claim 6, wherein said first, second, and third group of antenna element is at separate frequency band
Interior work, mid frequency f1, f2, f3 of described frequency band have a value of one of following combination:
F1=850MHz, f2=900MHz, f3=1800MHz；
F1=850MHz, f2=900MHz, f3=1900MHz；
F1=850MHz, f2=900MHz, f3=2000MHz；
F1=1800MHz, f2=2000MHz, f3=2500MHz；
F1=2000MHz, f2=2500MHz, f3=900MHz.
8., according to the antenna assembly described in claim 6, the antenna element of wherein said second group and the 3rd group is each is all located at institute
State between two adjacent antenna elements of first group.
9. according to the antenna assembly described in claim 6, the antenna element of wherein said 3rd group be arranged on described first group and
The position that the antenna element of second group is different, the 3rd group of antenna element is also staggered between described first group and the antenna element of second group joins
Put.
10., according to the antenna assembly described in claim 1, at least some of which antenna element is to utilize mutual cross polarization and dual polarization
's.
11. is linearly polarized according to the antenna assembly described in claim 1, at least some of which antenna element.
12. are respectively intended to according to the antenna assembly described in claim 1, wherein said first group of antenna element and second group of antenna element
Send RF signal (Tx) and receive RF signal (Rx).
13. according to the antenna assembly described in claim 1, is wherein disposed in described single row and work in same frequency band
Make two antenna elements between distance (y, z, w) with the corresponding distance of 0.5-0.9 λ of the mid frequency of respective frequency band
Within the scope of.
14. according to the antenna assembly described in claim 1, and wherein in two groups of antenna elements, least one set antenna element is following classes
One of antenna element:
Medium resonator antenna (DRA) unit；
Dipole antenna elements；Or
Patch antenna unit.
15. according to the antenna assembly described in claim 1, and the coupling between the most separate frequency band is by adjacent antenna element
Between provide restraining device (53；64；113) it is suppressed.
16. is parasitic antenna according to the antenna assembly described in claim 15, wherein said restraining device.
17. according to the antenna assembly described in claim 16, and wherein said parasitic antenna is bonding jumper (113).
18. according to the antenna assembly described in claim 15, and wherein said restraining device is barrier shield (53；64).
19. according to the antenna assembly described in claim 1, wherein indirectly at each antenna element and transceiver circuit (T1, T2)
The wave filter with low reactance-resistance ratio, described wave filter is had to be suitable to make each frequency band mutually isolated further.
20. may additionally include one or more groups antenna according to the antenna assembly described in claim 1, wherein said antenna assembly
Unit, each group of antenna element in one or more groups antenna element described is also disposed in the single row of described antenna element and such as
Work in lower described frequency field, this frequency field includes separating also with the frequency band of the frequency field of other group antenna element any
And non-overlapping frequency band, and the mid frequency of this frequency band is higher or lower than the center frequency of the frequency band of other group antenna element any
Rate.
21. 1 kinds are suitable to the antenna system (80) communicated by communication link (85) with base station (BS), including according to claim
Antenna assembly according to any one of 1-8 and 20, and the signal of the antenna element being sent in described antenna assembly for control
The phase place of the signal received with the antenna element in described antenna assembly and the device (APS of amplitude；DPS).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611021743.2A CN107425296B (en) | 2005-07-22 | 2006-07-21 | Antenna device with staggered antenna elements |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE05017231 | 2005-07-22 | ||
| SE0501723-1 | 2005-07-22 | ||
| SE0501723 | 2005-07-22 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611021743.2A Division CN107425296B (en) | 2005-07-22 | 2006-07-21 | Antenna device with staggered antenna elements |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101228665A CN101228665A (en) | 2008-07-23 |
| CN101228665B true CN101228665B (en) | 2016-12-14 |
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| EP1353405A1 (en) * | 2002-04-10 | 2003-10-15 | Huber & Suhner Ag | Dual band antenna |
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| US5923296A (en) * | 1996-09-06 | 1999-07-13 | Raytheon Company | Dual polarized microstrip patch antenna array for PCS base stations |
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