CN109167182A - A kind of printing-type low section feed antenna for the pulse reflector antenna that feedovers - Google Patents
A kind of printing-type low section feed antenna for the pulse reflector antenna that feedovers Download PDFInfo
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- CN109167182A CN109167182A CN201810855543.XA CN201810855543A CN109167182A CN 109167182 A CN109167182 A CN 109167182A CN 201810855543 A CN201810855543 A CN 201810855543A CN 109167182 A CN109167182 A CN 109167182A
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- comparing cell
- feedovers
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- 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
- H01Q19/10—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 reflecting surfaces
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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
- 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
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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
Abstract
The invention belongs to monopulse radar scanner technical fields, a kind of printing-type low section multipolarization feed antenna for the pulse reflector antenna that feedovers specifically is provided, the antenna is made of radiating antenna and matching integrated SIW pulse comparing cell, the radiating antenna is 2 × 2 array antennas, the array antenna is that stepping rotation is constituted using origin as rotation center, 90 ° by SIW broadside longitudinal joint antenna element or SIW rake joist antenna element, and the SIW pulse comparing cell provides respective phase for 4 antenna elements.The present invention uses single layer SIW technology, and pulse comparing cell and radiating antenna are integrated on single layer substrate, while realizing double-circle polarization pulse function, have the advantages that easy processing, low section and high integration；Guarantee antenna circular polarisation combined coefficient simultaneously.
Description
Technical field
It is specially a kind of for the pulse reflector antenna that feedovers the invention belongs to monopulse radar scanner technical field
Printing-type low section multipolarization feed antenna.
Background technique
There is monopulse radar the characteristic of efficient pointing to be widely adopted, and increase however as working frequency, space loss
Increase, high-gain aerial is the necessary condition tracked at a distance.Reflector antenna is famous with high-gain, high efficiency simultaneously, because
It is a selection well that Monopulse feed antenna is placed on reflecting surface focal point and fed to it by this.In some specific applications
In, before the rear space of reflector antenna is occupied by other equipment, therefore radar front end must not be not placed in reflector antenna
Side, in this case, in order to vacate enough spaces to radar transmit-receive component, the section of feed antenna is low as far as possible.
Multi-polarization single pulse feed antenna has many advantages, such as to overcome Path Loss, polarization loss, in satellite communication, missile-borne etc.
It has broad application prospects in the fields such as moving-target communication, pointing.
For example, document " V.K.Panasa, R.Chivukula, K.Sreekumar, and S.B.Sharma, " Dual
pola rized monopulse tracking feed for prime focal reflector antenna at S-
Band using crossed dip ole elements, " one is proposed in EuRAD2015,2015, pp.361-364. "
The Monopulse feed antenna of kind dual-linear polarization, the dipole antenna for the dual-linear polarization that antenna element is, and combine multi-sheet printed electricity
Road plate technique (PCB) realizes microstrip line comparing cell and strip line comparing cell；Every kind of comparing cell corresponds to a kind of antenna polarization,
Centre frequency is 2.25GHz, and it is high that multilayered structure leads to whole feed section, and at high frequencies microstrip line and strip line by
It is big in transmission loss, and be not suitable for, and the double-deck comparing cell considerably increases the complexity of feed antenna.
Document " P.Zheng, G.Zhao, S.Xu, F.Yang, and H.Sun, " Design of a W-band full-
pol arization monopulse Cassegrain antenna,”IEEE Antennas and Wireless
A kind of double-circle polarization pulse feedback is proposed in Propagation Letters., vol.16, pp.99-103, Apr.2016. "
Source antenna, antenna element are the electromagnetic horn of the high section of linear polarization, pass through the formation of single waveguide comparing cell and difference beam；Center
Frequency is 94GHz, and whole efficiency 18.4% and difference beam gain inequality are 5.5dB.
Document " P.Zheng, B.Hu, S.Xu, and H.Sun, " A W-band high-aperture-efficiency
multip olarized monopulse Cassegrain antenna fed by phased microstrip patch
quad,”IEEE Antenna s and Wireless Propagation Letters.,vol.16,pp.1609-1613,
Jan.2017. it also proposed a kind of double-circle polarization Monopulse feed antenna in ", antenna element is that the circular polarisation of two-terminal feeding is pasted
Chip antenna；Chip unit layout is more compact, but each chip unit needs two-terminal feeding, needs additional function point
Device, supply network road are increasingly complex；Its comparing cell is still the higher waveguide comparing cell of section；Centre frequency is 94GHz, whole
Efficiency is 41.2% and difference beam gain inequality is 5.2dB.
Although from it is existing report it can be found that multi-polarization single pulse feed antenna compared with traditional single pulse feed antenna
There is advantage in performance, but all use multilayered structure, cause feed antenna entirety section higher, also, use traditional array
Topology causes circular polarisation combined coefficient low；Therefore, multipolarization is realized, while efficiency is guaranteed, and the pulse of low section
Feed antenna difficulty is larger.
Summary of the invention
The purpose of the present invention is it is higher to solve existing report feed structure section under the premise of multipolarization Monopulse feed
Problem, while using the efficiency of new array topology guarantee feed antenna.
To achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of printing-type low section feed antenna for the pulse reflector antenna that feedovers, which is characterized in that the day
Line is made of radiating antenna and matching integrated SIW pulse comparing cell, and the radiating antenna is 2 × 2 array antennas,
The array antenna by SIW broadside longitudinal joint antenna element or SIW rake joist antenna element using origin as rotation center, 90 ° be step
It is constituted into rotation, the SIW pulse comparing cell provides respective phase for 4 antenna elements.
Compared with prior art, the beneficial effects of the present invention are:
1, the present invention uses single layer SIW technology, and pulse comparing cell and radiating antenna are integrated on single layer substrate,
While realizing double-circle polarization pulse function, have the advantages that easy processing, low section and high integration.
2, inventive antenna uses more compact 2 × 2 array topology, and traditional array topological circle polarity combination is effectively overcome to imitate
The low problem of rate, makes circular polarisation combined coefficient be guaranteed.
Detailed description of the invention
Fig. 1 is that three-dimensional structure of the present invention for the printing-type low section feed antenna for the pulse reflector antenna that feedovers is shown
It is intended to.
Fig. 2 is the printing-type low section feed antenna in the embodiment of the present invention 1 for the pulse reflector antenna that feedovers
Radiator antenna structure schematic diagram.
Fig. 3 is the printing-type low section feed antenna in the embodiment of the present invention 2 for the pulse reflector antenna that feedovers
Radiator antenna structure schematic diagram.
Fig. 4 is the printing-type low section feed antenna in the embodiment of the present invention 2 for the pulse reflector antenna that feedovers
SIW pulse comparing cell schematic diagram.
Fig. 5 is the right-handed circular polarization for the reflecting surface that feedovers in the embodiment of the present invention 2 and wave beam and difference beam directional diagram in the face xoz
Simulation result.
Fig. 6 is that simulation result is compared in the right-handed circular polarization and beam axis in the embodiment of the present invention 2 for the reflecting surface that feedovers.
Specific embodiment
The present invention is described in further details with reference to the accompanying drawings and examples.
The present invention provides a kind of printing-type low section feed antenna for the pulse reflector antenna that feedovers, which adopts
With single layer SIW technology, pulse comparing cell and radiating antenna are integrated on single layer substrate；Its structure as shown in Figure 1, by from
Under the lower metal copper clad layers 3, dielectric layer 2 and the upper layer metal copper clad layers 1 that up stack gradually constitute；The antenna is by radiation day
Line and matching integrated SIW pulse comparing cell are constituted, and the radiating antenna is 2 × 2 array antennas, the array day
Line is that stepping rotation is constituted using origin as rotation center, 90 ° by SIW broadside longitudinal joint antenna element or SIW rake joist antenna element
, the SIW pulse comparing cell provides respective phase for 4 antenna elements.
Embodiment 1
In the present embodiment, the SIW rake joist antenna of 2 × 2 array topology use ± 45 ° inclined slots of the radiating antenna
For unit, using origin as rotation center, 90 ° are stepping, form 2 × 2 array antennas, as shown in Figure 2.
Embodiment 2
In the present embodiment, 2 × 2 array topologies of the radiating antenna use SIW broadside longitudinal joint antenna for unit, with origin
For rotation center, 90 ° are stepping, form 2 × 2 array antennas, as shown in Figure 3；Compared to embodiment 1, the present embodiment radiate day
Line topology is more compact；By circular polarisation composition principle it is found that cell spacing is closer, circular polarisation combined coefficient is higher.
For feedforward reflector antenna, circular polarisation and beam aperture efficiency can be calculated with following formula:
For the feed antenna of two kinds of different topologies in embodiment 1 and embodiment 2, it is assumed that it is equal that reflecting face edge irradiates level
For -11dB, then both leakage efficiency etaiClose to identical, therefore overall efficiency ηvBy illumination efficiency ηsWith circular polarisation efficiency etac
Composition；θ-11dBFor the half of 11dB beam angle, EcirFor corresponding circular polarisation electric field, PincidentFor incident power, ZTEMFor freedom
Space wave impedance；Shown in the moulded dimension following table of two kinds of array topologies:
Feed array topology design parameter (unit: MM)
By taking left-hand circular polarization and wave beam as an example, for the feed of conventional topologies and longitudinal joint topology, the effect of reflecting surface is corresponded to
Rate can calculate separately as 56.4% and 64.4%, it is clear that the reflecting surface based on longitudinal joint topology feed is more efficient, is one more excellent
Scheme；
Being illustrated in figure 3 pulse comparing cell includes four 90 ° of couplers, two phase shifters；
The SIW pulse comparing cell comprising four 90 ° of couplers, upper coupler, lower coupler, left coupler,
Right coupler and two phase shifters: one of them 180 ° of phase shifter is connected with longitudinal joint 13,360 ° of phase shifters and longitudinal joint 11
It is connected；The lower delivery outlet of left coupler is connected with the input port of 360 ° of phase shifters, upper delivery outlet and 12 phase of longitudinal joint of left coupler
Even；The lower delivery outlet of right coupler is connected with longitudinal joint 14, and the upper delivery outlet of right coupler is connected with the input port of 180 ° of phase shifters；
The left delivery outlet of upper coupler is connected with the upper input port of left coupler, and the right delivery outlet of upper coupler is upper defeated with right coupler
Entrance is connected；The left delivery outlet of lower coupler is connected with the lower input port of left coupler, the right delivery outlet and right coupling of lower coupler
The lower input port of clutch is connected；The end of four input ports of upper coupler and lower coupler has having a size of 1.2mm × 0.8mm
Couple bore 31,32,33 and 34；Finally, being fed respectively to four coupling bores with WR-10 standard waveguide；Each coupling
The feed of bore corresponds to a kind of phase state of Longitudinal Slot Arrays, and every kind of phase state corresponds to different circular polarisation directional diagrams:
Double-circle polarization pulse principle
The working frequency 94GHz of the present embodiment, the substrate of selection are Taconic TSM-DS3, with a thickness of 0.508mm, are situated between
Copper thickness is 0.018mm in matter；SIW width be 1.6mm, longitudinal joint unit size be 1.12mm × 0.2mm, place-centric away from
The center SIW 0.18mm, away from SIW end metal through hole center 0.8mm；Four longitudinal joint sizes are identical in 2 × 2 arrays, and have rotation
Turn symmetry；SIW pulse comparing cell is finally combined, under the premise of efficiency has certain ensure, is solved anti-for feedovering
It penetrates the traditional multi-polarization single pulse feed antenna low section of surface antenna and realizes difficult problem；In addition, matched anti-with the feed
Penetrating surface antenna diameter is 140mm, focal length 56mm.Be illustrated in figure 5 in the present embodiment feedover reflecting surface right-handed circular polarization and
Simulation result of the wave beam with difference beam directional diagram in the face xoz；If Fig. 6 is the dextrorotation entelechy in the present embodiment for the reflecting surface that feedovers
Change and beam axis compares simulation result；From figure it is found that right-handed circular polarization and beam gain are 36.1dBi, 3dB beam angle is
1.5°.Right-handed circular polarization difference beam zero point depth is -28.2dB and difference beam gain inequality is 3.5dB.
The above description is merely a specific embodiment, any feature disclosed in this specification, except non-specifically
Narration, can be replaced by other alternative features that are equivalent or have similar purpose；Disclosed all features or all sides
Method or in the process the step of, other than mutually exclusive feature and/or step, can be combined in any way.
Claims (1)
1. a kind of printing-type low section feed antenna for the pulse reflector antenna that feedovers, which is characterized in that the antenna
It is made of radiating antenna and matching integrated SIW pulse comparing cell, the radiating antenna is 2 × 2 array antennas, institute
It is rotation center, 90 ° for stepping using origin that array antenna, which is stated, by SIW broadside longitudinal joint antenna element or SIW rake joist antenna element
What rotation was constituted, the SIW pulse comparing cell provides respective phase for 4 antenna elements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810855543.XA CN109167182B (en) | 2018-07-31 | 2018-07-31 | Printed low-profile feed antenna for feedforward monopulse reflector antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810855543.XA CN109167182B (en) | 2018-07-31 | 2018-07-31 | Printed low-profile feed antenna for feedforward monopulse reflector antenna |
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| CN109167182A true CN109167182A (en) | 2019-01-08 |
| CN109167182B CN109167182B (en) | 2021-06-01 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110085980A (en) * | 2019-05-10 | 2019-08-02 | 电子科技大学 | Low section broadband feed antenna for the pulse reflector antenna that feedovers |
| CN110265787A (en) * | 2019-06-21 | 2019-09-20 | 西安电子科技大学 | Back chamber gap circle polarized millimeter wave antenna based on substrate integration wave-guide SIW |
| CN110518350A (en) * | 2019-09-10 | 2019-11-29 | 北京理工大学 | A kind of circularly-polarized patch antenna of high-gain miniaturization |
| CN113036459A (en) * | 2021-03-08 | 2021-06-25 | 安徽大学 | Millimeter wave low-profile broadband circularly polarized slot-fed dipole array antenna |
| CN114171909A (en) * | 2021-12-09 | 2022-03-11 | 四川九洲电器集团有限责任公司 | SIW (substrate integrated waveguide) circularly polarized monopulse antenna |
| CN114883808A (en) * | 2022-05-23 | 2022-08-09 | 电子科技大学 | Single-layer three-passband frequency selective surface based on SIW |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110085980A (en) * | 2019-05-10 | 2019-08-02 | 电子科技大学 | Low section broadband feed antenna for the pulse reflector antenna that feedovers |
| CN110265787A (en) * | 2019-06-21 | 2019-09-20 | 西安电子科技大学 | Back chamber gap circle polarized millimeter wave antenna based on substrate integration wave-guide SIW |
| CN110518350A (en) * | 2019-09-10 | 2019-11-29 | 北京理工大学 | A kind of circularly-polarized patch antenna of high-gain miniaturization |
| CN113036459A (en) * | 2021-03-08 | 2021-06-25 | 安徽大学 | Millimeter wave low-profile broadband circularly polarized slot-fed dipole array antenna |
| CN114171909A (en) * | 2021-12-09 | 2022-03-11 | 四川九洲电器集团有限责任公司 | SIW (substrate integrated waveguide) circularly polarized monopulse antenna |
| CN114171909B (en) * | 2021-12-09 | 2023-02-03 | 四川九洲电器集团有限责任公司 | SIW (substrate integrated waveguide) circularly polarized monopulse antenna |
| CN114883808A (en) * | 2022-05-23 | 2022-08-09 | 电子科技大学 | Single-layer three-passband frequency selective surface based on SIW |
| CN114883808B (en) * | 2022-05-23 | 2023-04-25 | 电子科技大学 | Single-layer three-passband frequency selective surface based on SIW |
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