CN108963463A - A kind of broadband half module substrate integrated wave guide back chamber slot antenna - Google Patents
A kind of broadband half module substrate integrated wave guide back chamber slot antenna Download PDFInfo
- Publication number
- CN108963463A CN108963463A CN201810608003.1A CN201810608003A CN108963463A CN 108963463 A CN108963463 A CN 108963463A CN 201810608003 A CN201810608003 A CN 201810608003A CN 108963463 A CN108963463 A CN 108963463A
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- CN
- China
- Prior art keywords
- antenna
- module substrate
- substrate integrated
- wave guide
- half module
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- H01Q13/10—Resonant slot antennas
- H01Q13/18—Resonant slot antennas the slot being backed by, or formed in boundary wall of, a resonant cavity ; Open cavity antennas
-
- 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
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
Abstract
The invention discloses a kind of broadband half module substrate integrated wave guides to carry on the back chamber slot antenna, and antenna is mainly made of half module substrate integrated wave guide back chamber, opening in the rectangular radiation gap of the edge of half module substrate integrated wave guide back chamber and single short-circuit via hole.Antenna of the invention in the frequency range to be worked has many advantages, such as simple small in size, structure, low section, easy processing and with wide.
Description
Technical field
The present invention relates to the broadband half module substrate integrated wave guide (Half- that a kind of application prospect is widely capable of three die workers work
Mode Substrate Integrated Waveguide, HMSIW) back chamber slot antenna, belong to antenna technical field.
Background technique
Antenna is the important component of wireless communication system.The fast development of wireless communication, to it is small in size, at low cost,
High-gain, antenna easy of integration and broadband generate urgent need.Traditional cavity-backed radiator antenna has high-gain, low front and back ratio etc. excellent
Point, but that there is also volumes is excessive, is not easy the disadvantages of integrating with planar circuit.
Substrate integration wave-guide (Substrate Integrated Waveguide, SIW) carries on the back chamber slot antenna can be fine
Planarization, the actual demands such as easy of integration are realized in ground, but the problem of also bring narrower bandwidth.By load air dielectric layer, increase
Add resonant patch and increase the technological means such as mode of resonance, the broadened bandwidth for carrying on the back chamber slot antenna to SIW may be implemented.
In the case where certain pairs of antenna volumes have the application scenarios of requirements at the higher level, SIW back chamber slot antenna still has volume mistake
Big problem.With the fast development of Modern wireless communication, very big need are produced to the back chamber slot antenna with smaller volume
It asks.
Summary of the invention
Goal of the invention: aiming at the problems existing in the prior art, the present invention, which provides one kind, can satisfy wireless communication system
It is needing, can apply and microwave and millimeter wave frequency range, small in size, the easily designed and processing, broadband that is easy to Planar integration
Carry on the back chamber slot antenna.By design HMSIW class rectangle chamber, rectangular aperture and short-circuit via hole, three kinds of works have been motivated in different frequent points
Operation mode has broadened the bandwidth of antenna.The antenna have many advantages, such as it is small in size, be easy to Planar integration, structure it is simple, with wide.
Technical solution: a kind of broadband half module substrate integrated wave guide back chamber slot antenna, including dielectric layer, upper/lower layer metallic layer
And the antenna body that the metallization VIA of upper lower metal layer is constituted is connected, antenna body includes metallization VIA is constituted, opening
Opening class rectangle chamber in side is distributed in class square in upper metal layers, along the rectangular aperture of y-axis cutting and one by one
Short-circuit via hole near shape chamber open side.
By designing size and the position of rectangular aperture, and size and the position of short-circuit via hole, excited in suitable frequency point
A quarter TE110Mode, half TE210Odd mould mode and half TE210Even mould mode, so that antenna be made to work in different frequent points three
Under the different mode of kind, and the dimensional parameters by adjusting antenna, the resonance frequency point for these three modes of rationally arranging, to reach
Broaden the effect of the beamwidth of antenna.
Antenna feeds SIW cavity by 50 Ω microstrip lines, in the case where considering the input impedance of antenna, introduces four
/ mono- wavelength impedance transformers are fed to antenna.The size of the feeder line and antenna is related with the working frequency of antenna.
The utility model has the advantages that HMSIW provided by the invention carries on the back chamber slot antenna compared with existing cavity-backed radiator antenna, have as follows
Advantage:
1) antenna uses back chamber of the HMSIW as antenna, while remaining tradition back chamber slot antenna advantage, band
Small in size, planar structure is carried out, has been easily integrated, the advantages that the processing is simple.
2) antenna is made antenna work in different frequent points in Three models, is thus opened up using rectangular aperture and short-circuit via hole
The wide overall bandwidth of antenna.
Detailed description of the invention
Fig. 1 is the top view of inventive antenna；
Fig. 2 is inventive antenna mode of resonance a quarter TE110The equivalent circuit of mould；
Fig. 3 is the real part and standing-wave ratio schematic diagram varying with frequency of the input impedance of inventive antenna；
Fig. 4 is directional diagram of the inventive antenna at 9.6GHz；
Fig. 5 is directional diagram of the inventive antenna at 10.4GHz.
Specific embodiment
Combined with specific embodiments below, the present invention is furture elucidated, it should be understood that these embodiments are merely to illustrate the present invention
Rather than limit the scope of the invention, after the present invention has been read, those skilled in the art are to various equivalences of the invention
The modification of form falls within the application range as defined in the appended claims.
It is short by microstrip line feeder line, HMSIW back chamber, gap radiation unit and metallization that broadband HMSIW carries on the back chamber slot antenna
Pass by hole composition.The antenna is processed using single-layer printed circuit plate (Printed Circuit Board, PCB) technique.
Fig. 1 is the top view of inventive antenna.Antenna includes dielectric layer, upper and lower layer metal layer and connection upper/lower layer metallic
The metallization VIA 1 of layer.Multiple metallization VIAs 1 constitute and are opened on the opening class rectangle chamber of side, and antenna further includes upper
Layer metal layer cuts the rectangular aperture 2 to be formed and a short-circuit via hole 3 being distributed near class rectangle chamber open side along y-axis.
Dielectric layer with a thickness of h, dielectric constant εr.In figure, white circle is all metallization VIA 1, via diameter
For d.The part of grey is the lower metal layer of antenna in figure, including the feeder line 4 and SIW cavity by microstrip line to SIW cavity
Underlying metal.It include quarter wavelength impedance transducer from microstrip line to the feeder line 4 of SIW cavity.Multiple spacing are the metal of p
Change the opening class rectangle chamber that via hole 1 constitutes HMSIW.White rectangle 5 is the upper metal layers of antenna in figure, by dotted line and shade
The cutting of rectangular aperture 2 of expression is radiated as radiator in designed frequency range, is open in half-module chip collection in upper metal layers
At the open side of the class rectangle chamber of waveguide.One metallization VIA is located at side near the open side of HMSIW class rectangle chamber, as
Short-circuit via hole 3.
In Fig. 1, the feed microstrip line of antenna to the part of HMSIW chamber size by microstrip line width wf1、wf2And wf3,
And the width g of the slot at switchingmWith length lmIt determines.The width of HMSIW class rectangle chamber is w1, length l1.Rectangular aperture 2
Length and width is respectively ls1And ws1.The left edge via hole of half rectangular cavity of HMSIW is l at a distance from rectangular aperture 22.Short-circuit mistake
The spacing of hole 3 and rectangular aperture 2 is l3, it is s at a distance from HMSIW open edge1。
SIW resonant cavity used in antenna corresponds to the equivalent width of equivalent rectangular waveguide resonant cavity are as follows:
To mode of resonance a quarter TE110For mould, the equivalent length of corresponding equivalent rectangular waveguide resonant cavity are as follows:
When SIW is transmitted, admittance be may be expressed as:
Wherein, k0Indicate the wave number in vacuum, phase velocity β may be expressed as:
A quarter TE110The resonance frequency of mould can be by calculating the circuit equivalent, as shown in Figure 2 by short-circuit via hole 3
The resonance frequency of model obtains, wherein two concatenated capacitor-jXbIt can be given by:
Inductance jXaIt can be given by:
N indicates the serial number number of summation, i.e., to the just infinite summation of n=2 to n=in sum formula.
Double of TE210 surprise mould mode and half TE210 idol mould mode, working frequency can be provided by following formula approximation
Wherein, c is the light velocity in vacuum.
Antenna size is optimized using electromagnetic simulation software, obtains the HMSIW back chamber slot antenna of 10GHz work
Dimensional parameters are as shown in table 1.The meaning that each parameter represents is described above.
Simulation result is as shown in Figures 3 to 5.Fig. 3 is that the real part of inventive antenna input impedance and standing-wave ratio become with frequency
The schematic diagram of change；Fig. 4 is emulation directional diagram of the inventive antenna at 9.6GHz；Fig. 5 is inventive antenna at 10.4GHz
Emulate directional diagram.According to simulation result, -10dB the impedance bandwidth of antenna has reached 14.1%.
Table 1
| Parameter | Numerical value (mm) | Parameter | Numerical value (mm) |
| l1 | 23.2 | l2 | 6.0 |
| l3 | 5.8 | ls1 | 8.85 |
| lm | 3.9 | w1 | 9.4 |
| ws1 | 1.1 | wf1 | 1.55 |
| wf2 | 2.25 | wf3 | 3.1 |
| h | 1.0 | wf1 | 3.1 |
| s1 | 2.3 | εr | 2.2 |
Claims (5)
1. a kind of broadband half module substrate integrated wave guide carries on the back chamber slot antenna, including dielectric layer, upper/lower layer metallic layer and connection are up and down
The antenna body that the metallization VIA of metal layer is constituted, which is characterized in that antenna body includes that metallization VIA is constituted and opens
Mouth is in the opening class rectangle chamber of side, by one in upper metal layers, edgeyAxis cutting rectangular aperture and one be distributed in class
Short-circuit via hole near rectangular cavity open side.
2. broadband half module substrate integrated wave guide as described in claim 1 carries on the back chamber slot antenna, which is characterized in that opening class rectangle
Chamber is the half module substrate integrated wave guide cavity being made of metallization VIA, one side opening of forward direction in y-axis direction.
3. broadband half module substrate integrated wave guide as described in claim 1 carries on the back chamber slot antenna, which is characterized in that rectangular aperture is cut
The upper metal layers in antenna are cut, and are open in the open side of the class rectangle chamber of half module substrate integrated wave guide.
4. broadband half module substrate integrated wave guide as described in claim 1 carries on the back chamber slot antenna, which is characterized in that by adjusting square
The size in shape gap and position, and size and the position of short-circuit via hole, excite a quarter TE in different frequency points110Mode, half
TE210Odd mould mode and half TE210Even mould mode to make antenna in different frequent points work under three kinds of different modes, and is led to
The dimensional parameters for overregulating antenna, the resonance frequency point for these three modes of arranging, to achieve the effect that broaden the beamwidth of antenna.
5. broadband half module substrate integrated wave guide as described in claim 1 carries on the back chamber slot antenna, which is characterized in that opening class rectangle
The size and location of chamber, rectangular aperture and short-circuit via hole are adjusted according to the working frequency of antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810608003.1A CN108963463A (en) | 2018-06-13 | 2018-06-13 | A kind of broadband half module substrate integrated wave guide back chamber slot antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810608003.1A CN108963463A (en) | 2018-06-13 | 2018-06-13 | A kind of broadband half module substrate integrated wave guide back chamber slot antenna |
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| CN108963463A true CN108963463A (en) | 2018-12-07 |
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| CN201810608003.1A Pending CN108963463A (en) | 2018-06-13 | 2018-06-13 | A kind of broadband half module substrate integrated wave guide back chamber slot antenna |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111697321A (en) * | 2020-05-27 | 2020-09-22 | 宁波大学 | Filter antenna based on half-mode substrate integrated waveguide structure |
| CN113659324A (en) * | 2021-07-26 | 2021-11-16 | 西安理工大学 | Three-frequency quarter-mode substrate integrated waveguide antenna |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103515710A (en) * | 2013-08-07 | 2014-01-15 | 南京信息职业技术学院 | Dual-frequency-band slot antenna based on half-mode substrate integrated waveguide |
| CN105514600A (en) * | 2016-02-04 | 2016-04-20 | 东南大学 | Carinal cavity gap circularly polarized antenna adopting half module substrate integrated waveguide |
-
2018
- 2018-06-13 CN CN201810608003.1A patent/CN108963463A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103515710A (en) * | 2013-08-07 | 2014-01-15 | 南京信息职业技术学院 | Dual-frequency-band slot antenna based on half-mode substrate integrated waveguide |
| CN105514600A (en) * | 2016-02-04 | 2016-04-20 | 东南大学 | Carinal cavity gap circularly polarized antenna adopting half module substrate integrated waveguide |
Non-Patent Citations (3)
| Title |
|---|
| YUZHONG SHI、 JUHUA LIU、 YUNLIANG LONG: "Wideband Triple- and Quad-Resonance Substrate Integrated Waveguide Cavity-Backed Slot Antennas With Shorting Vias", 《IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION》 * |
| 史煜仲、刘菊华: "一种宽带基片集成波导背腔式缝隙天线", 《2017年全国天线年会论文集（上册）》 * |
| 吴波: "小型化基片集成波导背腔缝隙天线研究", 《中国优秀硕士学位论文全文数据库（电子期刊）》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111697321A (en) * | 2020-05-27 | 2020-09-22 | 宁波大学 | Filter antenna based on half-mode substrate integrated waveguide structure |
| CN113659324A (en) * | 2021-07-26 | 2021-11-16 | 西安理工大学 | Three-frequency quarter-mode substrate integrated waveguide antenna |
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Application publication date: 20181207 |
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