CN108493628A - A kind of novel substrate integration wave-guide polar duplex antenna system - Google Patents
A kind of novel substrate integration wave-guide polar duplex antenna system Download PDFInfo
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- CN108493628A CN108493628A CN201810233822.2A CN201810233822A CN108493628A CN 108493628 A CN108493628 A CN 108493628A CN 201810233822 A CN201810233822 A CN 201810233822A CN 108493628 A CN108493628 A CN 108493628A
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- integration wave
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- rectangular waveguide
- substrate
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/02—Waveguide horns
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/06—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens
- H01Q19/08—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens for modifying the radiation pattern of a radiating horn in which it is located
Abstract
The present invention relates to a kind of novel substrate integration wave-guide polar duplex antenna systems, including the orthomode coupler in double-layer base on piece, dual-polarization horn antenna, vertical-type rectangular waveguide-quasi- concentric zones line transition structure and horizontal tapered rectangular waveguide-substrate integrated waveguide transition structure is arranged, the orthomode coupler is connected with dual-polarization horn antenna, vertical-type rectangular waveguide-quasi- concentric zones line transition structure and horizontal tapered rectangular waveguide-substrate integrated waveguide transition structure respectively.Present invention design uses substrate integrated wave guide structure, entire polar duplex antenna system is produced in a planar package, realize the miniaturization of whole system with it is integrated, cost of manufacture is greatly reduced, while ensureing that invented substrate integration wave-guide polar duplex antenna has higher power capacity and lower transmission loss.
Description
Technical field
The present invention relates to microwave technical fields, and in particular to a kind of novel substrate integration wave-guide polar duplex antenna system.
Background technology
With the continuous development of Information And Communication industry, spectrum efficiency is increasingly paid attention in large capacity microwave communication, is made with this
More and more nervous crowded frequency spectrum resource is fully used.Orthomode transducer (Ortho-Mode Transducer, OMT)
It is the key element of the different polarization of separation/merging (or communication mode) electromagnetic wave in microwave telecommunication system, is widely used
In various wireless communications, radar and electronic warfare system.
Double polarization transmission can realize that the electromagnetic wave of different polarization is defeated with keeping pouring in simultaneously, and theoretical spectrum efficiency is monopole
Change transmission twice, thus be widely used in all kinds of wirelessly with mobile communication system with lifting system capacity.The transmission technology
In following wireless and mobile communication field, the especially large capacity millimeter wave passback towards the application of the 5th third-generation mobile communication (5G)
In system, have broad application prospects.In Dual polarization transmission system, orthomode coupler (OMT) is that most critical is most important
Component.Orthomode coupler enables single antenna to support two kinds of not like-polarized electromagnetic waves while receiving and dispatching.It is ideal orthogonal
The input signal of two points of ports can be converted to the independent signal of cross polarization by mode coupler, be launched from port is closed, and
Do not generate cross polarization；Conversely, orthomode coupler also can isolate two-way mutually just from the reception signal of dual polarized antenna
The polarized wave of friendship is respectively fed to two points of ports.Since orthomode coupler can carry out the signal of two cross polarization patterns
It efficiently separates or merges so that the unlike signal with frequency range is able to work at the same time in different POLARIZATION CHANNELs, logical to effectively improve
Believe capacity.By orthomode coupler, double polarization transmission only can be realized with an antenna, effectively reduce development cost and circuit
Size.Therefore, the development of double polarization transmission technology has high-performance orthogonal mode coupler urgent demand.
Invention content
Technical problem to be solved by the invention is to provide a kind of novel substrate integration wave-guide polar duplex antenna system, solutions
Certainly traditional antenna systems loss is high, the low problem of efficiency.
The technical solution that the present invention solves above-mentioned technical problem is as follows：A kind of novel substrate integration wave-guide polar duplex antenna
System, including the orthomode coupler in double-layer base on piece, dual-polarization horn antenna, vertical-type rectangular waveguide-standard are set coaxially
Band line transition structure and horizontal tapered rectangular waveguide-substrate integrated waveguide transition structure, the orthomode coupler respectively with it is double
Polarize electromagnetic horn, vertical-type rectangular waveguide-quasi- concentric zones line transition structure and the integrated wave of horizontal tapered rectangular waveguide-substrate
Transition structure is led to be connected.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the orthomode coupler includes the substrate integration wave-guide end being arranged in substrate integration wave-guide T junction
Mouth, quasi- coaxial strip line end mouth and substrate integrated ridge waveguide close port, the substrate integration wave-guide port and horizontal tapered rectangle
Waveguide-substrate integration wave-guide transition structure is connected, the quasi- coaxial strip line end mouth and vertical-type rectangular waveguide-quasi- concentric zones
Line transition structure is connected, and the substrate integrated ridge waveguide closes port and is connected with dual-polarization horn antenna.
Further, the merging section of the substrate integration wave-guide port in the orthomode coupler and quasi- coaxial strip line end mouth
The line of rabbet joint is equipped at point.
Further, the dual-polarization horn antenna includes upper/lower layer metallic face, interlayer lens, the carinate metal in both sides
Narrow wall and metal blind hole, the carinate narrow wall of metal are distributed in ladder, and the material of the interlayer lens is semi-circular section
Limited step.
Further, the vertical-type rectangular waveguide-quasi- concentric zones line transition structure includes rectangular waveguide and quasi- concentric zones
The shape of line, the rectangular waveguide and quasi- concentric zones line contact surface is probe irradiation structure, and material is high low-impedance line feed-in gold
Belong to rectangular patch.
Further, the tapered rectangular waveguide-substrate integrated waveguide transition structure of the level carries out impedance by tapered cross-section
Matching, the length L of the tapered cross-sectionrWith width WrCalculation formula be：
In formula (1) and formula (2), λsiwFor the wavelength of substrate integration wave-guide cutoff frequency, εraAnd εrsIt is respectively empty
The relative dielectric constant of gas and substrate, the relative dielectric constant ε of airra=1.
The beneficial effects of the invention are as follows：
1. present invention design uses substrate integrated wave guide structure, entire polar duplex antenna system is produced on a plane
In encapsulation, realize the miniaturization of whole system with it is integrated, greatly reduce cost of manufacture, while ensureing invented substrate
Integrated waveguide polar duplex antenna has higher power capacity and lower transmission loss.
2. using stepped narrow wall and ridge in dual-polarization horn antenna proposed by the present invention, resistance can be better achieved
Anti- matching extends bandwidth of operation.
3. dual-polarization horn antenna port proposed by the present invention goes out to use the quasi- lens arrangement of halfround bar slice type, allow radiated wave by
Spherical surface wave direction plane wave changes, and reduces radiation lobe width, improves the efficiency of antenna.
4. the present invention provides the integrated approach of a plane orthomode coupler and dual polarized antenna, microwave can be improved
The integrated level of millimetre-wave circuit and system, manufacture craft is simple, facilitates large-scale production.
Description of the drawings
Fig. 1 is structure of the invention schematic diagram；
Scattering parameter characteristics of the Fig. 2 between each port of orthomode coupler；
Fig. 3 is the simulation radiation diagram of the present invention；
Fig. 4 is power plant's distribution map of different directions component of the present invention.
In attached drawing, parts list represented by the reference numerals are as follows：
1, the double-deck substrate, 2, orthomode coupler, 3, dual-polarization horn antenna, 4, horizontal tapered rectangular waveguide-substrate collection
At waveguide transition structure, 5, vertical-type rectangular waveguide-quasi- concentric zones line transition structure.
Specific implementation mode
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
As shown in Figure 1, a kind of novel substrate integration wave-guide polar duplex antenna system, including be arranged on the double-deck substrate 1
Orthomode coupler 2, dual-polarization horn antenna 3, vertical-type rectangular waveguide-quasi- concentric zones line transition structure 5 and level it is tapered
Rectangular waveguide-substrate integrated waveguide transition structure 4, orthomode coupler 2 respectively with dual-polarization horn antenna 3, vertical-type rectangle
The quasi- concentric zones line transition structure of waveguide -5 is connected with horizontal tapered rectangular waveguide-substrate integrated waveguide transition structure 4.
In embodiments of the present invention, orthomode coupler 2 include substrate integration wave-guide T junction, substrate integration wave-guide port,
Quasi- coaxial strip line end mouth and substrate integrated ridge waveguide close port, substrate integration wave-guide port and horizontal tapered rectangular waveguide-base
Piece integrated waveguide transition structure 4 is connected, quasi- coaxial strip line end mouth and vertical-type rectangular waveguide-quasi- concentric zones line transition structure 5
It is connected, substrate integrated ridge waveguide closes port and is connected with dual-polarization horn antenna 3, and orthomode coupler 2 is mainly by a substrate collection
At waveguide T junction and the transmission line of different transmission mode is supported to form, the ports A are the ports substrate integration wave-guide (SIW), for swashing
TE10 pattern polarized waves are encouraged out, the ports B are quasi- coaxial strip line end mouths, for motivating Quasi-TEM mode polarized wave, from the ends A/B
Mouthful excitation reach T junction, after line of rabbet joint matching transition, into C/D mouthful, C/D mouthfuls are to have embedded the substrate of slot line structure to integrate
Ridge waveguide closes port, TE10 and Quasi-TEM mode can transmit simultaneously, and the two is mutually orthogonal, to each other cross-couplings performance.According to
Scattering parameter characteristic between the realized each port of substrate integration wave-guide orthomode coupler of invention is as shown in Fig. 2, the ports A
Insertion loss to the wave for transmitting TE10 patterns between C-terminal mouth is less than 3dB, and return loss is more than 10dB, does not connect in some structures
Continuous place is easy to form some resonance points, leads to the presence of transmission recess in working band.It is propagated between the ports B and the ports D
The insertion loss of quasi- TEM waves is less than 4dB, and return loss is better than 5dB, understands because of impedance not in the frequency range performance of 85GHz to 87GHz
Can good match thus become poor.In port, C/D adds horn-like substrate integrated ridge waveguide radiating element, can improve entire
The performance of substrate integration wave-guide orthomode coupler makes the interport isolation of input port A, B be increased to 25dB.
In embodiments of the present invention, dual-polarization horn antenna 3 to be to be integrated with the substrate integration wave-guide of slot line structure as feed,
Electromagnetic wave feed-in is carried out from orthomode coupler 2.Dual-polarization horn antenna 3 mainly include upper and lower metal covering, middle layer loudspeaker
The narrow wall of carinate metal and seven row metal blind holes for the di-lens, both sides that type is combined with wafer type, the combination of above structure
Impedance matching can be preferably carried out, the width of radiation lobe of antenna is reduced, improves the radiation efficiency of antenna, allows the performance of antenna
It is promoted.
In embodiments of the present invention, probe technique is used in vertical-type rectangular waveguide to quasi- concentric zones line transition structure 5,
It is supported from the high low-impedance line transition probe of modified of quasi- concentric zones line extension by double layer substrate 1 and vertical by rectangular waveguide port
Covering.Meanwhile being drilled by probe or so by two air chambers of double layer substrate 1, to impedance matching.By adjusting opposite position
It sets and the length and width of two air chambers, better return loss and smaller insertion loss can be obtained.
In embodiments of the present invention, the different base of horizontal tapered rectangular waveguide-substrate integrated waveguide transition structure 4
Taper or hierarchic structure is usually used to carry out impedance matching between rectangular waveguide.Waveguiding structure may insure using conical by its shape
Effective dielectric constant and equivalent permeability gradually from medium substrate to air change, to reduce the abrupt change journey of characteristic impedance
Degree improves the impedance matching of medium substrate and the boundary of air intersection, extends bandwidth of operation.Length (the L of tapered cross-sectionr) and
Width (Wr) can be calculated by such as formula (1) and (2)：
Wherein λsiwIt is wavelength of the substrate integration wave-guide by frequency, εraAnd εrsIt is the opposite dielectric of air and substrate respectively
Constant calculates, for convenience usually by the permittivity ε of airraIt is set as 1.
By three-dimensional (3D) Full wave FEM software (ANSYS high frequency structure simulator HFSS) to structure shown in Fig. 1
Modeling and simulating and optimization are carried out, also, antenna performance is analyzed by emulating the radiation event of Quasi-TEM mode and TE10 patterns.
The simulation radiation diagram of substrate integration wave-guide polar duplex antenna system is as shown in Figure 3.In figure 3, the antenna of Quasi-TEM mode has more
Wide angular coverage, but with compared with low gain；And under TE10 patterns, antenna has relatively narrow angular breadth, and preferably orientation is special
Property and higher gain.
As can be known from Fig. 4, when encouraging TE10 pattern electromagnetic waves from port 1, the electric field component of x, the directions y are less, and the directions z
Electric field component it is more, and at this time port 2 be nearly no detectable electric field energy distribution, it is clear that the electromagnetic wave of TE10 patterns exists
There is good isolation between port 1,2.When encouraging Quasi-TEM mode electromagnetic wave by port 2, the directions x electric field component has larger
Energy distribution, only less Energy distribution in the y and z directions；Moreover, being only able to detect the seldom directions y electricity in 1 port
Field component, this also illustrates Quasi-TEM modes to have preferable isolation between port 1,2.The two of the polar duplex communication system
Kind polarization mode has preferable isolation.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of novel substrate integration wave-guide polar duplex antenna system, which is characterized in that including being arranged on the double-deck substrate (1)
Orthomode coupler (2), dual-polarization horn antenna (3), vertical-type rectangular waveguide-quasi- concentric zones line transition structure (5) and water
Put down tapered rectangular waveguide-substrate integrated waveguide transition structure (4), the orthomode coupler (2) respectively with dual polarization loudspeaker day
Line (3), vertical-type rectangular waveguide-quasi- concentric zones line transition structure (5) and horizontal tapered rectangular waveguide-substrate integrated waveguide mistake
Structure (4) is crossed to be connected.
2. novel substrate integration wave-guide polar duplex antenna system according to claim 1, which is characterized in that described orthogonal
Mode coupler (2) include the substrate integration wave-guide port being arranged in substrate integration wave-guide T junction, quasi- coaxial strip line end mouth and
Substrate integrated ridge waveguide closes port, the substrate integration wave-guide port and horizontal tapered rectangular waveguide-substrate integrated waveguide transition
Structure (4) is connected, and the quasi- coaxial strip line end mouth is connected with vertical-type rectangular waveguide-quasi- concentric zones line transition structure (5),
The substrate integrated ridge waveguide closes port and is connected with dual-polarization horn antenna (3).
3. novel substrate integration wave-guide polar duplex antenna system according to claim 2, which is characterized in that described orthogonal
Substrate integration wave-guide port in mode coupler (2) and the line of rabbet joint is equipped at the merge node of quasi- coaxial strip line end mouth.
4. novel substrate integration wave-guide polar duplex antenna system according to claim 1, which is characterized in that described bipolar
It includes upper/lower layer metallic face, interlayer lens, the narrow wall of the carinate metal in both sides and metal blind hole to change electromagnetic horn (3), described
The carinate narrow wall of metal is distributed in ladder, and the material of the interlayer lens is semi-circular cut out tab.
5. novel substrate integration wave-guide polar duplex antenna system according to claim 1, which is characterized in that described vertical
Type rectangular waveguide-quasi- concentric zones line transition structure (5) includes rectangular waveguide and quasi- concentric zones line, and the rectangular waveguide and standard are same
Shape of the axis with line contact surface is probe irradiation structure, and material is high low-impedance line feed-in metal rectangular patch.
6. novel substrate integration wave-guide polar duplex antenna system according to claim 1, which is characterized in that the level
Tapered rectangular waveguide-substrate integrated waveguide transition structure (4) carries out impedance matching by tapered cross-section, the tapered cross-section
Length LrWith width WrCalculation formula be：
In formula (1) and formula (2), λsiwFor the wavelength of substrate integration wave-guide cutoff frequency, εraAnd εrsRespectively air and base
The relative dielectric constant of plate, the relative dielectric constant ε of airra=1.
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| CN201810233822.2A CN108493628A (en) | 2018-03-21 | 2018-03-21 | A kind of novel substrate integration wave-guide polar duplex antenna system |
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| CN201810233822.2A CN108493628A (en) | 2018-03-21 | 2018-03-21 | A kind of novel substrate integration wave-guide polar duplex antenna system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109921187A (en) * | 2019-03-11 | 2019-06-21 | 青岛海信移动通信技术股份有限公司 | Millimeter wave dual polarized antenna and array antenna |
| WO2020177713A1 (en) * | 2019-03-06 | 2020-09-10 | Huawei Technologies Co., Ltd. | Dual-polarized substrate-integrated beam steering antenna |
| CN112768934A (en) * | 2020-12-30 | 2021-05-07 | 深圳市信丰伟业科技有限公司 | Antenna and method for eliminating co-channel interference based on electromagnetic wave mode conversion |
| CN112864560A (en) * | 2021-01-11 | 2021-05-28 | 博微太赫兹信息科技有限公司 | Transition conversion structure from substrate integrated waveguide to rectangular waveguide |
| CN112886253A (en) * | 2021-02-07 | 2021-06-01 | 北京星英联微波科技有限责任公司 | Compact 5G millimeter wave dual-polarized horn antenna |
| CN112886255A (en) * | 2021-02-07 | 2021-06-01 | 北京星英联微波科技有限责任公司 | 5G ultra-wideband small-sized dual-polarized horn antenna |
| CN113794049A (en) * | 2021-08-09 | 2021-12-14 | 北京交通大学 | Three-dimensional substrate integrated antenna based on multilayer laminated dielectric integrated waveguide |
| US11394114B2 (en) | 2020-12-22 | 2022-07-19 | Huawei Technologies Co., Ltd. | Dual-polarized substrate-integrated 360° beam steering antenna |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020177713A1 (en) * | 2019-03-06 | 2020-09-10 | Huawei Technologies Co., Ltd. | Dual-polarized substrate-integrated beam steering antenna |
| US10854996B2 (en) | 2019-03-06 | 2020-12-01 | Huawei Technologies Co., Ltd. | Dual-polarized substrate-integrated beam steering antenna |
| CN113615004A (en) * | 2019-03-06 | 2021-11-05 | 华为技术有限公司 | Dual-polarized substrate integrated beam steering antenna |
| CN109921187A (en) * | 2019-03-11 | 2019-06-21 | 青岛海信移动通信技术股份有限公司 | Millimeter wave dual polarized antenna and array antenna |
| US11394114B2 (en) | 2020-12-22 | 2022-07-19 | Huawei Technologies Co., Ltd. | Dual-polarized substrate-integrated 360° beam steering antenna |
| CN112768934A (en) * | 2020-12-30 | 2021-05-07 | 深圳市信丰伟业科技有限公司 | Antenna and method for eliminating co-channel interference based on electromagnetic wave mode conversion |
| CN112768934B (en) * | 2020-12-30 | 2024-01-02 | 深圳市信丰伟业科技有限公司 | Antenna and method for eliminating same-frequency interference based on electromagnetic wave mode transformation |
| CN112864560A (en) * | 2021-01-11 | 2021-05-28 | 博微太赫兹信息科技有限公司 | Transition conversion structure from substrate integrated waveguide to rectangular waveguide |
| CN112886255A (en) * | 2021-02-07 | 2021-06-01 | 北京星英联微波科技有限责任公司 | 5G ultra-wideband small-sized dual-polarized horn antenna |
| CN112886255B (en) * | 2021-02-07 | 2021-12-21 | 北京星英联微波科技有限责任公司 | 5G ultra-wideband small-sized dual-polarized horn antenna |
| CN112886253B (en) * | 2021-02-07 | 2021-11-30 | 北京星英联微波科技有限责任公司 | Compact 5G millimeter wave dual-polarized horn antenna |
| CN112886253A (en) * | 2021-02-07 | 2021-06-01 | 北京星英联微波科技有限责任公司 | Compact 5G millimeter wave dual-polarized horn antenna |
| CN113794049A (en) * | 2021-08-09 | 2021-12-14 | 北京交通大学 | Three-dimensional substrate integrated antenna based on multilayer laminated dielectric integrated waveguide |
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Application publication date: 20180904 |