CN106410376A - E-band miniature plate antenna and simultaneous cofrequency diplexer composed of same E-band miniature plat antenna - Google Patents
E-band miniature plate antenna and simultaneous cofrequency diplexer composed of same E-band miniature plat antenna Download PDFInfo
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- CN106410376A CN106410376A CN201610246642.9A CN201610246642A CN106410376A CN 106410376 A CN106410376 A CN 106410376A CN 201610246642 A CN201610246642 A CN 201610246642A CN 106410376 A CN106410376 A CN 106410376A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
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Abstract
The invention provides an E-band miniature plate antenna and a simultaneous cofrequency diplexer composed of the same E-band miniature plate antenna. In the E-band miniature plate antenna, four small radiation units are rectangularly arranged and installed on a large radiation unit at an equal interval, and the large radiation unit is connected with a feed waveguide through a coupling slit. Two E-band miniature plate antennas serve as an emission antenna and a reception antenna, and are parallelly integrated inside the simultaneous cofrequency diplexer. The polarization forms of the emission antenna and the reception antenna are orthogonal. The antenna adopts the miniature plate antenna which is easy to integrate, and the system complexity is not increased. The duplex system improves the system integrated level, reduces the system composition complexity, and effectively improves the utilization rate of frequency spectrum resources of the system.
Description
Technical field
The invention belongs to millimeter wave high capacity communication field, be related to a kind of based on and present multilayer waveguide gap array
E-band plate aerial and same-frequency duplexing device while offseted based on cross polarization.
Background technology
Hasten towards saturation with spectrum utilization day, communication service pressure increasingly increases, the demand of new frequency range and high bandwidth is more come
More vigorous.Millimetre-wave attenuator is all gradually ripe and extensively utilized in Military and civil fields.E-band refers to up-downgoing respectively
It is operated in the higher millimeter wave frequency band of 71-76GHz, 81-86GHz.This frequency range has the total bandwidth of 10GHz, permissible
Undertake great message capacity business.E-band communication at present has been widely used for LTE core network return link,
Cooperation high-order modulating, such as 256QAM, the air interface transmission speed of more than 3Gbps can be reached.With high-power
The progressively development of device, following E-band will be provided with more being widely applied scene, such as between star, satellite-ground link, and
The fields such as Large Copacity real time intelligence scouting.
In order to overcome atmospheric attenuation and rain declines the impact bringing, high-gain aerial is the core devices of E-band application.Mesh
Adopt parabola antenna front major part matured product more, but this antenna has larger section it is more difficult to be integrated into system
Internal.Antenna section significantly will be reduced using planar array, have some scholars to have studied using SIW or Gap
The form of Waveguid makes planar array.But because both forms belong to the feeding network of semi open model, and high
The dielectric loss of frequency range is larger, and its efficiency has certain limitations.With injection electroplating technology maturation, waveguide array plus
Work precision is stepped up, and the following waveguide gap array using injection electroplating technology will be provided with low section, lightweight
Huge advantage.Traditional waveguide gap array adopts series feed form, but its width balances each other, design comparison is complicated.Compare
For, adopting and present design can be with the reduction design difficulty of high degree it is easy to the width of guarantee radiating element balances each other.
Because E-band frequency range is high, the size of its radiating element is less, in order to ensure the close coupling between unit, needs spacing
Minimum.Traditional and present cellular construction as shown in figure 1, using this tradition and presenting unit and will result in feed network structures
Interfere, thus array cannot be realized.
In order to fundamentally improve transmission capacity, need the availability of frequency spectrum of raising system.Traditional method is using higher
Modulation system, such as 1024QAM, 2048QAM, or spectrum efficiency is improved using methods such as non-orthogonality signal.
But these methods need higher demodulation threshold to realize to a certain extent, thus limit system communication distance or to send out
Penetrating power has requirements at the higher level.By comparison, while being offseted using radio frequency, same-frequency duplexing mode is a kind of effectively lifting frequency
The means of spectrum utilization rate, and do not increase the pressure of signal process part.
Traditional duplexer form is broadly divided into FDD and two kinds of time division duplex.The duplexer of FDD is by receiving and dispatching
Path filter and T connector are constituted.Due to reserved wider protection interval between transmitting-receiving frequency band, can be by design
Ensure that transmitting-receiving passband falls in stopband each other, thus providing higher transceiver insulation.But this form needs to receiving,
Transmission channel provides different frequency bands respectively, thus frequency spectrum is caused with great waste.The transceiver channel of time division duplex
Using same frequency band, general offer combining in the form of circulator, thus there is the higher availability of frequency spectrum.If but
Realize big bandwidth, the isolation of circulator is often relatively restricted, typically only 20dB about.It is thus desirable to connecing
Receive the isolation increasing in passage between one group of switch guarantee transmitting-receiving.But switch will bring greatly to receives link when opening
Loss, now cannot normal receipt signal, can only transmission signal.Therefore time division duplex in a strict sense for
It is not a kind of full duplex form.While being offseted based on radio frequency, same-frequency duplexing can be realized with effectively utilizes frequency spectrum resource
With the full-duplex communication under frequency band.
Content of the invention
In order to overcome the deficiencies in the prior art, the present invention provides a kind of E-band miniaturization plate aerial it is easy to integrated.
The technical solution adopted for the present invention to solve the technical problems is：A kind of E-band minimizes plate aerial, including
Four little radiating elements and a large radiation unit；Described large radiation unit is rectangular element, by rectangular element
The coupling gap in portion is connected with the feed waveguide on the downside of rectangular element；Four identical little radiating elements are
Rectangle, is connected on the upside of large radiation unit, constitutes the equidistant rectangular array of a 2*2.
The perturbation gap that a horizontal cross-section is rectangle is respectively opened in four side centers of described large radiation unit, and perturbation gap is passed through
Wear the upper and lower surface of large radiation unit.
The long length of side of described little radiating element is the half-wavelength of working frequency points, and minor face length is less than the half-wavelength of working frequency points；
Between each little radiating element, the cycle is less than the wavelength of working frequency points；The thickness of little radiating element is less than 1mm；Described
The long length of side of large radiation unit is an operation wavelength, and width is less than the half-wavelength of working frequency points；Large radiation unit
Thickness is less than 1mm；The width in perturbation gap and depth are no more than 1mm.
The gap that couples between described feed waveguide and large radiation unit is rectangular aperture；The length in coupling gap is work
The half of frequency wavelength, the width in coupling gap is less than a quarter of working frequency points wavelength.
The present invention also provides one kind same-frequency duplexing device simultaneously, minimizes plate aerial as transmitting sky using two E-band
Line and reception antenna, parallel be integrated in simultaneously inside same-frequency duplexing device, the polarization of transmitting antenna and reception antenna is just
Hand over, the feed mouth of transmitting antenna extends to same-frequency duplexing device interface simultaneously and constitutes emission port, and reception antenna feeds mouth
Extend to same-frequency duplexing device interface simultaneously and constitute receiving port.
The invention has the beneficial effects as follows：The present invention using transmitting-receiving two width antennas polarization isolation and intrinsic space every
From characteristic, constitute duplex system.Antenna is using miniaturization plate aerial it is easy to integrated.Because directional aerial belongs to milli
The necessary device of metric wave communication, irreplaceable, thus constitute duplex system using antenna and do not increase the complexity of system.
The present invention utilizes the isolation characteristic of antenna, instead of conventional frequency division, tdd systems.This new duplex system is not
Need to increase extra duplexer, improve the integrated level of system, reduce the complexity of system composition.Meanwhile, phase
There is provided transceiver insulation compared with frequency division duplex system using protection frequency range, the present invention can effectively improve system to frequency spectrum resource
Utilization rate；Transceiver insulation is provided to belong to a kind of half-duplex form compared to tdd systems using switches set, this
Bright provide a kind of full duplex mode of efficient utilization frequency spectrum resource.
Brief description
Fig. 1 is traditional and presents Waveguide slot cell schematics, and wherein, (a) is top view, and (b) is plan view, 1
Represent coupling gap, 2 represent radiating element, and 3 represent feed waveguide.
Fig. 2 is multilayer waveguide slot element schematic diagram proposed by the present invention, and wherein, (a) is top view, and (b) is to look squarely
Figure, 1 represents coupling gap, and 3 represent feed waveguide, and 4 represent the little radiating element in upper strata, and 5 represent lower floor's large radiation unit,
6 represent perturbation gap.
Fig. 3 proposes the feed mouth return loss of unit and the return loss contrast schematic diagram not introducing perturbation for the present invention.
Fig. 4 is the composition frame chart of the device of same-frequency duplexing simultaneously proposed by the present invention, and 7 represent transmitting antenna, and 8 represent reception antenna,
9 represent same-frequency duplexing device simultaneously, and 10 represent emission port, and 11 represent receiving port.
Fig. 5 proposes, for the present invention, the illustraton of model that unit constitutes 4*4 linear array, and wherein, (a) is front elevation, and (b) is
Back view.
Fig. 6 is E face T-section structural representation, and 12 represent 1 port, and 13 represent 2 ports, and 14 represent 3 ports, and 15 are
Distribution structure.
Fig. 7 is E face T-section port performance schematic diagram.
Fig. 8 is that the array-fed reflection coefficient of port of the present invention is lost schematic diagram.
Fig. 9 is array gain directional diagram of the present invention.
Figure 10 designs same-frequency duplexing device structural representation simultaneously for the present invention, and wherein, (a) is front elevation, and (b) is the back of the body
Face figure, 10 represent emission port, and 11 represent receiving port.
Figure 11 designs same-frequency duplexing device isolation schematic diagram simultaneously for the present invention.
Figure 12 is that duplexer of the present invention assembles exemplary plot with system, and 9 represent duplexer, and 16 represent whole casing body, 17 representatives
Transceiver channel circuit, 18 representative antennas covers.
Figure 13 is radiative unit structure dimensional drawing of the present invention.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples, and the present invention includes but are not limited to following embodiments.
Present invention design a kind of based on and the multilayer waveguide gap array presented, cellular construction is as shown in Figure 2.In order that feed
Network is easily achieved, and needs the size of adding unit, but adding unit size simply to will result in resonance point inclined to low frequency
Move thus the coupling in working frequency range cannot be realized.In addition, excessive unit size can cause the Severe distortion of directional diagram.
In order to overcome these problems, present invention design is a kind of to parasitize four little radiating elements on one large radiation unit
Multilayer radiative unit structure.This structure can effectively ensure impedance matching in bandwidth of operation and avoid directional diagram abnormal
Become.Large radiation unit is rectangular element, positioned at lower floor, is connected with feed waveguide by coupling gap.Four little radiation
Unit be located at upper strata, be rectangle, appearance and size is identical, constitute a 2*2 equidistant rectangular array, with
The large radiation unit of layer is joined directly together.For the standing-wave ratio bandwidth of expanding element, the present invention introduces perturbation in unit surrounding,
Thus improving Surface current distribution, realize the impedance matching in more broadband.The present invention passes through on large radiation unit four side
Center, respectively opens a rectangle and carefully stitches composition perturbation, and the length of thin seam is identical with large radiation element thickness.Introduce perturbation
Contrast as shown in Figure 3 with the feed mouth return loss being not added with perturbation.Using this unit constitute two-dimensional array it is provided that
Low section, plate aerial easy of integration.The element number of forming array depends on the antenna gain required for link budget,
The element number of forming array is more, and the gain of antenna is higher, and the size of antenna also will be bigger simultaneously.
According to the basic theories of slot antenna, when designing little radiating element, element length is the half-wavelength of working frequency points,
Cell width is relevant with desire bandwidth, and the more wide then bandwidth of width is wider, but the half-wavelength less than working frequency points.Little spoke
Penetrate between unit the cycle (centre-to-centre spacing of adjacent little radiating element) and be less than a wavelength, to ensure the close coupling between unit.
The coupling of the thickness effect standing-wave ratio of little radiating element, but control within 1mm it is ensured that easy to process.The big spoke of lower floor
The length penetrating unit is an operation wavelength, and width is relevant with bandwidth, but is less than an operation wavelength, THICKNESS CONTROL
Within 1mm.Perturbation gap width on large radiation unit is narrower, depth is deeper, and its impact to surface current is got over
By force, width and depth are no more than 1mm.The gap that couples between feed waveguide and lower floor radiating element is rectangular aperture,
This gap thickness is less, then couple stronger.The length in coupling gap is relevant with working frequency points, is working frequency points wavelength
Half.The width in coupling gap is relevant with bandwidth, but a quarter less than working frequency points wavelength.
The present invention utilizes polarization characteristic and space isolation characteristic, the low section by means of plate aerial and the Yi Ji of antenna
The advantages of one-tenth, same-frequency duplexing device while design is a kind of new, transmitting-receiving can be made with effectively utilizes frequency spectrum and time resource
Passage realizes full duplex work in similar frequency bands, provides high receive-transmit isolation for system, is a kind of by antenna set
Become the new duplexer form within duplexer, as shown in Figure 4.Dual-mode antenna is parallel to be integrated in inside duplexer,
The polarization guarantee of two width antennas is orthogonal, and such as transmitting antenna adopts horizontal polarization, and reception antenna adopts vertical antenna.
Here only need to ensure polarization orthogonal, also can adopt transmitting antenna vertical polarization, reception antenna horizontal polarization；Or
Person two width antenna is orthogonal with positive and negative 45 degree of polarization mode.Transmitting antenna feed mouth extends to and constitutes transmitting at module interface
Port, reception antenna feed mouth extends to composition receiving port at module interface, measures the isolation between two ports
It is the transceiver insulation of duplexer.The unit number constituting antenna is more, and the gain of antenna is bigger, then between two width antennas
Space isolation also will be bigger；The interval of two width antennas is bigger, then the space isolation between antenna is also bigger.Sky between antenna
Between isolate bigger, then duplexer receive and dispatch port between transceiver insulation also will be bigger.
Design radiating element according to theoretical described in content of the invention with principle, through optimizing, each physical dimension is as shown in figure 13.
Wherein, a_wg=3.0988mm, b_wg=1.5494mm, L_cp=2.3mm, w_cp=0.7mm, h_cp=0.1mm,
L_low=7.4mm, w_low=6.9mm, h_low=0.7mm, L_up=2.7mm, w_up=2.3mm, h_up=1mm,
W_int=0.8mm, h_int=0.5mm.
Using unit form proposed by the invention, constitute the 4*4 linear array of a plane, its electromagnetic simulation model is such as
Shown in Fig. 5.Array sizes are 28mm*30mm*3.3mm.
Feed waveguide adopts standard waveguide flange WR12, constitutes power splitter using E face T-section, based on the design of this power splitter
Feeding network, as shown in Figure 6.Its port performance is as shown in fig. 7, return loss S11<-22dB.
Designed array reaches expected requirement, and the loss of its reflection coefficient of port is as shown in figure 8, in 71-76GHz frequency range
S11<-10dB；Its gain pattern is as shown in figure 9, gain 22dBi, the first minor level -14dBc.
Using this 4*4 array, constitute duplexer according to Fig. 4 block diagram, diplexer structure schematic diagram is as shown in Figure 10, duplexing
Device a size of 63mm*30mm*4mm.Transceiver insulation is emulated, in the range of working frequency range 71-76GHz, receives
Send out isolation and be more than 90dB (S21<- 90dB), as shown in figure 11.
Duplexer is as shown in figure 12 with final assembly brief example.Whole machine is by housing, transceiver channel, duplexer, antenna
Cover composition.Transceiver channel is operated in same frequency range it is not necessary to reserve frequency or temporal protection interval.Transceiver channel
Circuit wave guide interface is connected by standard flange with duplexer, and both stackings are installed in whole casing body.This duplexer collection
Become the functions such as transmitting-receiving combining, transceiver insulation and antenna, simplify the component relationship of whole machine.Directly antenna house is made
For upper cover plate, the airtight installation with whole casing body, reduce main screw lift, constitute the high front end system of an integrated level.
Claims (5)
1. a kind of E-band minimizes plate aerial, and including four little radiating elements and a large radiation unit, its feature exists
In：Described large radiation unit is rectangular element, by the coupling gap in the middle part of rectangular element and positioned at rectangular element
The feed waveguide of downside connects；Four identical little radiating elements are rectangle, are connected on large radiation unit
Side, constitutes the equidistant rectangular array of a 2*2.
2. E-band according to claim 1 miniaturization plate aerial it is characterised in that：Described large radiation unit
The perturbation gap that a horizontal cross-section is rectangle is respectively opened on four sides center, and the upper and lower of large radiation unit is run through in perturbation gap
Surface.
3. E-band according to claim 1 miniaturization plate aerial it is characterised in that：Described little radiating element
The long length of side is the half-wavelength of working frequency points, and minor face length is less than the half-wavelength of working frequency points；Between each little radiating element
Cycle is less than the wavelength of working frequency points；The thickness of little radiating element is less than 1mm；Described large radiation unit
The long length of side is an operation wavelength, and width is less than the half-wavelength of working frequency points；The thickness of large radiation unit is less than
1mm；The width in perturbation gap and depth are no more than 1mm.
4. E-band according to claim 1 miniaturization plate aerial it is characterised in that：Described feed waveguide with big
Coupling gap between radiating element is rectangular aperture；The length in coupling gap is the half of working frequency points wavelength, coupling
The width of joint close gap is less than a quarter of working frequency points wavelength.
5. one kind is using same-frequency duplexing device while E-band miniaturization plate aerial is constituted described in claim 1, its feature
It is：Minimize plate aerials as transmitting antenna and reception antenna using two E-band, parallel be integrated in
When same-frequency duplexing device inside, the polarization of transmitting antenna and reception antenna is orthogonal, and the feed mouth of transmitting antenna extends
Constitute emission port to same-frequency duplexing device interface simultaneously, reception antenna feed mouth extends to same-frequency duplexing device simultaneously and connects
Receiving port is constituted at mouthful.
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| CN201610246642.9A CN106410376B (en) | 2016-04-20 | 2016-04-20 | A kind of E-band miniaturization plate aerial and its same-frequency duplexing device while constitute |
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| CN201610246642.9A CN106410376B (en) | 2016-04-20 | 2016-04-20 | A kind of E-band miniaturization plate aerial and its same-frequency duplexing device while constitute |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108321478A (en) * | 2018-03-23 | 2018-07-24 | 华南理工大学 | The duplexer of four resonant cavities composition based on waveguide feed |
| CN109411878A (en) * | 2018-10-18 | 2019-03-01 | 漆宏 | The radiating element of antenna and array antenna with it |
| CN110350315A (en) * | 2019-06-29 | 2019-10-18 | 瑞声科技（南京）有限公司 | Antenna and electronic equipment |
| WO2022170516A1 (en) * | 2021-02-09 | 2022-08-18 | 华为技术有限公司 | Information transmission method and device therefor |
| RU2820192C1 (en) * | 2021-02-09 | 2024-05-30 | Хуавэй Текнолоджиз Ко., Лтд. | Equipment and method of transmitting information |
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| CN103746192A (en) * | 2014-01-17 | 2014-04-23 | 福州福大北斗通信科技有限公司 | First-generation Compass/second-generation Compass B1/GPS (Global Positioning System) multisystem-compatible navigation antenna |
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| KR19980069149A (en) * | 1997-02-26 | 1998-10-26 | 김영환 | Microstrip Array Antenna Using Waveguide Feeding |
| US6133882A (en) * | 1997-12-22 | 2000-10-17 | Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Industry Through Communications Research Centre | Multiple parasitic coupling to an outer antenna patch element from inner patch elements |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108321478A (en) * | 2018-03-23 | 2018-07-24 | 华南理工大学 | The duplexer of four resonant cavities composition based on waveguide feed |
| CN109411878A (en) * | 2018-10-18 | 2019-03-01 | 漆宏 | The radiating element of antenna and array antenna with it |
| CN110350315A (en) * | 2019-06-29 | 2019-10-18 | 瑞声科技（南京）有限公司 | Antenna and electronic equipment |
| WO2022170516A1 (en) * | 2021-02-09 | 2022-08-18 | 华为技术有限公司 | Information transmission method and device therefor |
| RU2820192C1 (en) * | 2021-02-09 | 2024-05-30 | Хуавэй Текнолоджиз Ко., Лтд. | Equipment and method of transmitting information |
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| Publication number | Publication date |
|---|---|
| CN106410376B (en) | 2019-06-21 |
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