CN106505309A - Present array antenna in a kind of gap loaded microstrip side - Google Patents
Present array antenna in a kind of gap loaded microstrip side Download PDFInfo
- Publication number
- CN106505309A CN106505309A CN201610949830.8A CN201610949830A CN106505309A CN 106505309 A CN106505309 A CN 106505309A CN 201610949830 A CN201610949830 A CN 201610949830A CN 106505309 A CN106505309 A CN 106505309A
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- China
- Prior art keywords
- antenna
- array
- gap
- rectangular patch
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Classifications
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
Abstract
The invention provides array antenna is presented on a kind of gap loaded microstrip side, it is characterised in that：Using the gap rectangular patch that cracks as radiating element, the left and right two ends of gap of cracking rectangular patch are equipped with the bootstrap loading structure for carrying out capacitive coupling to antenna；Every linear array is realized by micro-strip quarter-wave transformer section using edge feed, the structure of center short circuit, microstrip antenna array secondary lobe.The present invention proposes the novel side feedback form of a kind of center short circuit, edge feed, runs into short-circuit structure energy equivalent to electromagnetic wave and again returns on each radiating element, and realizes the taper distribution of array using a quarter short-circuit block.Not only there is relatively low secondary lobe, and be easily worked.Compact structure, is easy to be combined with other aerial arrays, can meet spatially, compatible demand compound with other aerial arrays, with very strong practicality and application prospect.
Description
Technical field
The present invention relates to array antenna is presented on a kind of gap loaded microstrip side, belong to two waveband communication, radar, remote sensing technology neck
Domain.
Background technology
Modern electronic warfare equipment forward direction multifunctional all, small integrated, modularization, intelligentized direction constantly step
Enter.Waveguiding structure is adopted traditional monopulse system, antenna volume and weight are larger more, and realize that two complementary wave lead antenna are combined nothing
By very big from design or processing all difficulty.Therefore research miniaturization, easily compound, clever structure Sidelobe monopulse antenna
Become more and more important.The features such as considering the light weight of microstrip antenna, easily realize integrated design, low cost with integrated circuit, micro-strip
Antenna gradually enters into the visual field of researcher, a member being increasingly becoming in monopulse antenna big family.
The antenna of low-sidelobe level to be obtained, common design are pectinate line microstrip antenna arrays, but radiate master due to which
To be accordingly difficult to control from the end of comb, be difficult to realize Low sidelobe level.Document [1] (S.G.Kim and K.Chang,
“Low-cost monopulse antenna using bi-directionally-fed microstrip patch
Array ", Electronics Letters, Vol.39, no.20, pp.1428-1429,2003.) in 2003 years S.G.Kim and
K.Chang have devised an one-dimensional low-loss bidirectional radiation pulse microstrip antenna array, is more than the secondary lobe electricity of -10dB
Flat.In the higher millimeter wave band of frequency, document [2] (Fang Dagang, Chen xiaoguang, " A novel compact
Microstrip monopulse Antenna Array ", Journal of Nanjing University of Science
And Technology, Vol.27, no.5, pp.474-477,2003) give a kind of coplanar pulse microstrip antenna designs,
But its secondary lobe is unsatisfactory.In ku wave bands, document [3] (Hao Wang, Da-Gang Fang, " Investigation on the
Performance of a compact microstrip monopulse antenna array ", 20036th
International Symposium on Antennas, Propagation and EM Theory Proceedings,
Pp100-103) outline professor in country side's have devised 16 × 16 yuan of rectangular patch pulse and be uniformly distributed planar array, most increase
Benefit is 24.5dB, secondary lobe ＜ -17dB.In addition in the design of 16 yuan of pulse rectangular patch linear arrays, in order to obtain relatively low secondary lobe,
Each unit is connected with attenuator and phase regulator.
Microstrip array design in above-mentioned document is all using apex drive structure, but in (main passive) double frequency combined antenna
Or multifrequency combined antenna etc. is when needing two secondary or how secondary feed structures, division center can be made crowded using apex drive, or even nothing
Method is realized.
Content of the invention
The technical problem to be solved in the present invention is to provide a kind of miniaturization of clever structure, Sidelobe micro-strip side feedback antenna array
Row, not only have relatively low secondary lobe, and are easily worked, compound with other aerial arrays due to being easy to small size performance.
In order to solve above-mentioned technical problem, a kind of gap loaded microstrip side feedback array day of offer is the technical scheme is that
Line, it is characterised in that：Using the gap rectangular patch that cracks as radiating element, it is right that the left and right two ends of gap of cracking rectangular patch are equipped with
Antenna carries out the bootstrap loading structure of capacitive coupling；Every linear array is using edge feed, the structure of center short circuit, microstrip antenna array pair
Lobe is realized by micro-strip quarter-wave transformer section.
Preferably, by slotting to rectangular patch, make surface current bend, increase resonance length, shorten antenna chi
Very little.
Preferably, the size of the rectangular patch madam width w is：(0.2±0.05)λl≤w≤(0.5±0.05)λl,
λlWavelength for lowest operating frequency.
Preferably, length l in the loading gapsFor：ls=(0.8 ± 0.05) w.
Preferably, array current is distributed as dongle husband-Chebyshev's distribution, forms four points using feeder line between each antenna element
One of wavelength impedance transforming section controlling array current distribution, every linear array central point is short dot.
The present invention proposes the novel side feedback form of a kind of center short circuit, edge feed, runs into short circuit equivalent to electromagnetic wave
Structural energy is again returned on each radiating element, and realizes the taper distribution of array using a quarter short-circuit block.Not only have
There is relatively low secondary lobe, and be easily worked.Compact structure, be easy to compound with other aerial arrays, can meet spatially with
Other aerial arrays are compound, compatible demand, with very strong practicality and application prospect.
Description of the drawings
Fig. 1 presents array antenna unit model schematic for the gap loaded microstrip side that the present embodiment is provided；
Fig. 2 presents array antenna Array Model schematic diagram for the gap loaded microstrip side that the present embodiment is provided.
Specific embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limit the scope of the present invention.In addition, it is to be understood that after the content for having read instruction of the present invention, people in the art
Member can be made various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited
Scope.
Array antenna is presented using the gap rectangular patch that cracks as radiating element in the gap loaded microstrip side that the present embodiment is provided,
The left and right two ends of gap of cracking rectangular patch are equipped with the bootstrap loading structure for carrying out capacitive coupling to antenna, and every linear array adopts edge
Feed, the structure of center short circuit, microstrip antenna array secondary lobe are realized by micro-strip quarter-wave transformer section.
I, radiating element parameter determination
The radiation of inventive antenna rectangular patch unit mainly by gap of cracking is realizing.Rectangular patch unit is selected first
Length and width, according to calculating, when working in TM01When (main mould), its vertical polarized antenna dimension width is not less than w=(0.5
±0.05)λl.
Antenna element is taken as shown in figure 1, by slotting to microband paste, making surface current bend, so as to reach
Increase resonance length, shorten the effect of antenna size.
Adapt to Miniaturization Design, rectangular patch width w may be selected in (0.2 ± 0.05) λl≤w≤(0.5±0.05)λlModel
In enclosing, λlWavelength for lowest operating frequency.Length l in loading gapsWith width ws, lsChange on antenna low frequency end affect
Larger, increase lsThe operating frequency of antenna can suitably be reduced, l is typically takens=(0.8 ± 0.05) w.wsThe resistance of main decision gap
Anti- size, so that affect the matching degree with feed, on the other hand, wsCross-polarized size can also be affected.
In order to reduce the impact to other combined antennas, antenna thickness is reduced as far as possible.As thickness diminishes, antenna perception
Increase, capacitive coupling need to be carried out to antenna, therefore add bootstrap loading structure at antenna or so two ends, antenna longitudinal size is constant,
But dielectric-slab lower thickness.The selection of bootstrap loading physical dimension is mainly determined at the reactance value of antenna itself, and this can basis
Smith graphics calculations and obtain.
II, side feedback microstrip array parameter determination
In order to obtain low sidelobe and have higher gain, array current distribution need to be designed as dongle husband-Chebyshev
Distribution, forms quarter-wave transformer section using feeder line between each antenna element to control array current point as shown in Figure 2
Cloth, center A points are short dot.Traditional apex drive pattern is changed, using edge feed, the structure of center short circuit, space
On can meet, compatible demand compound with other aerial arrays.
Every linear array presents structure using side, and design bare bones are：For aerial array, first will by gain and sidelobe level
Ask and select unit number M, N and CURRENT DISTRIBUTION, then carry out taper feeding network design.Due in the short circuit of every microstrip array center,
Therefore matching section need to be added at edge feed, it is ensured that the radiation efficiency of each radiating element in linear array.
Claims (5)
1. array antenna is presented on a kind of gap loaded microstrip side, it is characterised in that：Using the gap rectangular patch that cracks as radiating element,
The left and right two ends of gap of cracking rectangular patch are equipped with the bootstrap loading structure for carrying out capacitive coupling to antenna；Every linear array adopts edge
Feed, the structure of center short circuit, microstrip antenna array secondary lobe are realized by micro-strip quarter-wave transformer section.
2. array antenna is presented on a kind of gap loaded microstrip side as claimed in claim 1, it is characterised in that：By to rectangular patch
Fluting, makes surface current bend, and increases resonance length, shortens antenna size.
3. array antenna is presented on a kind of gap loaded microstrip side as claimed in claim 1, it is characterised in that：The rectangular patch husband
The size of people width w is：(0.2±0.05)λl≤w≤(0.5±0.05)λl, λlWavelength for lowest operating frequency.
4. array antenna is presented on a kind of gap loaded microstrip side as claimed in claim 3, it is characterised in that：The length in loading gap
lsFor：ls=(0.8 ± 0.05) w.
5. array antenna is presented on a kind of gap loaded microstrip side as described in any one of Claims 1 to 4, it is characterised in that：Array
CURRENT DISTRIBUTION is dongle husband-Chebyshev's distribution, forms quarter-wave transformer section using feeder line between each antenna element
To control array current distribution, every linear array central point is short dot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610949830.8A CN106505309A (en) | 2016-11-02 | 2016-11-02 | Present array antenna in a kind of gap loaded microstrip side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610949830.8A CN106505309A (en) | 2016-11-02 | 2016-11-02 | Present array antenna in a kind of gap loaded microstrip side |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106505309A true CN106505309A (en) | 2017-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610949830.8A Pending CN106505309A (en) | 2016-11-02 | 2016-11-02 | Present array antenna in a kind of gap loaded microstrip side |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107026322A (en) * | 2017-03-27 | 2017-08-08 | 杭州电子科技大学 | Short distance vehicle radar antenna |
| CN107275767A (en) * | 2017-05-31 | 2017-10-20 | 西安交通大学 | A kind of high-gain phased antenna array of side loaded media plate |
| CN107946772A (en) * | 2017-10-24 | 2018-04-20 | 浙江大学 | A kind of novel double-frequency gap resonant antenna |
| CN113131205A (en) * | 2019-12-31 | 2021-07-16 | 重庆品胜科技有限公司 | Low-sidelobe RFID antenna and communication equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6017003B1 (en) * | 2015-10-06 | 2016-10-26 | 株式会社フジクラ | Microstrip antenna and manufacturing method thereof |
-
2016
- 2016-11-02 CN CN201610949830.8A patent/CN106505309A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6017003B1 (en) * | 2015-10-06 | 2016-10-26 | 株式会社フジクラ | Microstrip antenna and manufacturing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 姚凤薇: "《新型双波段共面微带/波导单脉冲天线设计》", 《电波科学学报》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107026322A (en) * | 2017-03-27 | 2017-08-08 | 杭州电子科技大学 | Short distance vehicle radar antenna |
| CN107275767A (en) * | 2017-05-31 | 2017-10-20 | 西安交通大学 | A kind of high-gain phased antenna array of side loaded media plate |
| CN107275767B (en) * | 2017-05-31 | 2019-06-11 | 西安交通大学 | A kind of high-gain phased antenna array of side loaded media plate |
| CN107946772A (en) * | 2017-10-24 | 2018-04-20 | 浙江大学 | A kind of novel double-frequency gap resonant antenna |
| CN107946772B (en) * | 2017-10-24 | 2019-09-10 | 浙江大学 | A kind of novel double-frequency gap resonant antenna |
| CN113131205A (en) * | 2019-12-31 | 2021-07-16 | 重庆品胜科技有限公司 | Low-sidelobe RFID antenna and communication equipment |
| CN113131205B (en) * | 2019-12-31 | 2023-08-15 | 重庆品胜科技有限公司 | Low sidelobe RFID antenna and communication equipment |
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Application publication date: 20170315 |