CN105490036A - Series-feed and shunt-feed combination filtering microstrip array antenna - Google Patents
Series-feed and shunt-feed combination filtering microstrip array antenna Download PDFInfo
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- CN105490036A CN105490036A CN201610013467.9A CN201610013467A CN105490036A CN 105490036 A CN105490036 A CN 105490036A CN 201610013467 A CN201610013467 A CN 201610013467A CN 105490036 A CN105490036 A CN 105490036A
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- 238000001914 filtration Methods 0.000 title claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 230000000694 effects Effects 0.000 claims abstract description 9
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- 239000002184 metal Substances 0.000 claims abstract description 8
- 230000005855 radiation Effects 0.000 claims description 9
- 238000012546 transfer Methods 0.000 claims description 9
- 230000008520 organization Effects 0.000 claims description 7
- 230000000191 radiation effect Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 abstract description 4
- 238000010168 coupling process Methods 0.000 abstract description 4
- 238000005859 coupling reaction Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 abstract 2
- 239000011888 foil Substances 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 6
- 238000004088 simulation Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000010287 polarization Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000005388 cross polarization Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
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- 230000007547 defect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
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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
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a series-feed and shunt-feed combination filtering microstrip array antenna, which comprises a plate-like dielectric substrate, a microstrip structure and ground, wherein the microstrip structure is formed by metal foil on the upper surface of the substrate; the ground is formed by the metal foil on the lower surface of the substrate; the microstrip structure comprises a port structure, a resonator and a series-feed patch array; the port structure and the resonator feed electricity in a slot coupling manner; and energy transmission of the resonator and the series-feed patch array is achieved in the slot coupling manner. The series-feed and shunt-feed combination filtering microstrip array antenna has the core contents that the series-feed path array feeds the electricity in a shunt-feed manner; meanwhile, a shunt-feed network is achieved by the resonator; and the energy transmission is achieved between the resonator and the port and the series-feed path array in the slot coupling manner, so that the targets of miniaturization and a filtering effect are achieved on the whole. Above all, the antenna disclosed by the invention has the characteristics of high selectivity, high out-of-band rejection, small size and the like, and also has the characteristics of being simple in structure, easy to process and manufacture, low in cost, easy to integrate and the like.
Description
Technical field
The present invention relates to the technical field of microstrip antenna, refer in particular to a kind of series feed and feedback combine filtering micro-strip array antenna.
Background technology
In recent decades, along with the development of information and electronic technology, various new technology and invention emerge in an endless stream, the wherein fast development of microwave integrated circuit and very large scale integration technology, impels the electronic equipment in the field such as modern radar, telemetry, satellite communication, mobile communication, electronic countermeasures towards miniaturization, multifunction, the intelligentized future development of process information.People are integrated with the electronic equipment of increasing satisfied different requirement and various antennas supporting with it thereof on the platform be limited in scope, and it is desirable to realize more function with less device.
Antenna and RF/Microwave filter are as the Primary Component in communicating, normally independent design, connected by transmission line, filter is by port Impedance 50 ohm design, then antenna is linked by transmission line, but antenna and filter are due to the difference of bandwidth, their input impedance can not be mated usually completely, and this will affect frequency characteristic.If carry out independent matched design, complicated by what cause designing like this, and match circuit also can cause the size of device to increase.
Therefore must there is wide application prospect in the filter antenna of integrated design.Integrated filter antenna can possess filtering and radiation two functions simultaneously, and not only have good radiation characteristic at passband, and can realize the gain of high selectivity, antenna had huge advantage more in the past.Because integrating filtering antenna realizes filtering and radiation dual-use function, they will reduce communication equipment volume and cost, are conducive to the miniaturization of radio-frequency front-end.
Summary of the invention
The object of the invention is to overcome existing micro-strip array antenna and lack good filtering characteristic and the defect taking large-size, provide a kind of series feed and feedback combine filtering micro-strip array antenna, there is high selectivity, high out-of-side rejection, size be little, lightweight and be easy to the advantages such as processing and fabricating.
For achieving the above object, technical scheme provided by the present invention is: the filtering micro-strip array antenna that a kind of series feed and feedback combines, the microstrip structure comprise plate-like dielectric substrate, being formed at upper surface of base plate by metal forming, the ground formed by metal forming at base lower surface; Described microstrip structure comprises port organization, resonator and series feed patch array, and described port organization and resonator pass through the mode feed of slot-coupled, and the Energy Transfer of described resonator and series feed patch array is realized by the mode of slot-coupled; Each series feed paster in described series feed patch array plays the chip unit of radiation effects by two, is respectively the first chip unit and the second chip unit, and plays the first transmission line of Energy Transfer effect and play the second transmission line composition of energy acceptance effect; Each chip unit is all formed with a groove, groove wherein in the first chip unit can controls transfer to the energy size of the second chip unit, groove in second chip unit plays impedance matching, the groove notch of two chip units in each series feed paster is opposed in opposite directions, and between them, be connected with the first transmission line, the length of described first transmission line is half-wavelength, object is by the phase-difference control of two chip units at 180 degree, and described second transmission line is connected with the first chip unit.
Described first chip unit is identical with the radiation intensity of the second chip unit.
Described second transmission line is connected to the another side of the first chip unit confronting grooves.
Compared with prior art, tool has the following advantages and beneficial effect in the present invention:
1, this filtering micro-strip array antenna has good filtering characteristic when not having cascading filter.
2, this filtering micro-strip array antenna adopts mode that is series feed and feedback combination, improves space utilization, decreases entire physical size.
3, this filtering micro-strip array antenna is easy to processing and manufacturing, and cost is low, and planar structure is easy to integrated, is applicable in plurality of communication systems.
Accompanying drawing explanation
Fig. 1 is the vertical section cutaway view of inventive antenna.
Fig. 2 is the microstrip structure schematic diagram of inventive antenna.
Fig. 3 is the structural representation of an inventive antenna wherein series feed paster.
Fig. 4 is inventive antenna | S11| and gain simulation result schematic diagram.
Fig. 5 is that inventive antenna is in H face, centre frequency place Direction Pattern Simulation result schematic diagram.
Fig. 6 is that inventive antenna is in the main polarization Direction Pattern Simulation result schematic diagram in E face, centre frequency place.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Filtering micro-strip array antenna integral manufacturing of the present invention, on the medium substrate of double-sided copper-clad, uses machinery to scribe, the technology such as laser scoring, circuit board corrosion all can easily make.Core content of the present invention is that series feed patch array adopts and the mode feed presented, simultaneously and present network and realize with a resonator, all carry out transmitting energy in the mode of slot-coupled between resonator and port and series feed patch array, totally reach miniaturized and there is the object of filter effect.
It is 2.55 that filtering micro-strip array antenna of the present invention is produced on dielectric constant in the manner of a printed circuit board, thickness is on the micro-band plate of polytetrafluoroethylene double-sided copper-clad of 0.8mm, as shown in Figure 1, 2, 3, described filtering micro-strip array antenna comprises the microstrip structure 2 that plate-like dielectric substrate 1, on substrate 1 surface comprises metal paper tinsel are formed, the ground 3 formed by metal forming at substrate 1 lower surface to structure.Described microstrip structure 2 comprises port organization 211, resonator 221 and series feed patch array 231-234.Described port organization 211 and the mode feed of resonator 221 by slot-coupled, appropriate design resonator 221, makes it be operated in mode of resonance.Described resonator 221 is realized by the mode of slot-coupled with the Energy Transfer of series feed patch array 231-234.Each series feed paster in described series feed patch array 231-234 plays the chip unit of radiation effects by two, be respectively the first chip unit 2312 and the second chip unit 2314, and the first transmission line 2313 playing Energy Transfer effect forms with the second transmission line 2311 playing energy acceptance effect, each chip unit is all formed with a groove, groove wherein in the first chip unit 2312 can controls transfer to the energy size of the second chip unit 2314, appropriate design makes the radiation intensity of two chip units suitable, and the groove in the second chip unit 2314 plays impedance matching, the groove notch of two chip units in each series feed paster is opposed in opposite directions, and between them, be connected with the first transmission line 2313, the length of described first transmission line 2313 is half-wavelength, object is at 180 degree by the phase-difference control of the first chip unit 2312 and the second chip unit 2314, described second transmission line 2311 is connected to the another side of the first chip unit 2312 confronting grooves.
The working method of whole antenna is that electromagnetic signal inputs from port organization 211 feed, Energy Coupling is to resonator 221, be coupled to series feed patch array 231-234 by resonator 221 again, radiate finally by by series feed patch array 231-234, the mode of Received signal strength is then contrary.
Fig. 4 is the present embodiment antenna | S11| and gain simulation result schematic diagram, this antenna 10dB reflection loss scope is 3.46GHz to 3.54GHz, and relative bandwidth is about 2.3%.Within the scope of Antenna Operation, average gain is about 11.7dBi, and maximum gain is 12.1dBi.As seen from the figure, no matter be S curve or gain curve, antenna is all very precipitous to the transition of stopband by passband, in gain curve, Out-of-band rejection is also very strong, although there are two little radiation peaks, but its gain one is at below 1.3dBi, and another is below-5dBi, is all suppressed widely.It is noted that these two little radiation peaks are that the parasitic mode of series feed patch array causes, this is ubiquity in the series feed patch array of tradition, and if entire physical does not have filter effect, these radiation peak intensities are stronger.Visible, this antenna has the advantage such as high selectivity, high out-of-side rejection.
Fig. 5 and Fig. 6 is respectively the main polarization Direction Pattern Simulation result schematic diagram of H face, centre frequency place Direction Pattern Simulation result schematic diagram and E face of the present embodiment antenna.As seen from the figure, the main polarization minor level in antenna H face is less than-12dB, and cross polarization is less than-23dB, and-3dB main lobe width is 23.2 degree.The cross polarization of E face is less than-80dB, and therefore E face directional diagram only gives main polarization.Both direction figure only gives the region of-90 degree to+90 degree, this is because emulation employing is IE3D software, in software, floor is set to infinitely great.Visible, antenna has the advantage such as Sidelobe, low-cross polarization.
The examples of implementation of the above are only the preferred embodiment of the present invention, not limit practical range of the present invention with this, therefore the change that all shapes according to the present invention, principle are done, all should be encompassed in protection scope of the present invention.
Claims (3)
1. the filtering micro-strip array antenna that series feed and feedback combines, is characterized in that: the microstrip structure comprise plate-like dielectric substrate, being formed at upper surface of base plate by metal forming, the ground formed by metal forming at base lower surface; Described microstrip structure comprises port organization, resonator and series feed patch array, and described port organization and resonator pass through the mode feed of slot-coupled, and the Energy Transfer of described resonator and series feed patch array is realized by the mode of slot-coupled; Each series feed paster in described series feed patch array plays the chip unit of radiation effects by two, is respectively the first chip unit and the second chip unit, and plays the first transmission line of Energy Transfer effect and play the second transmission line composition of energy acceptance effect; Each chip unit is all formed with a groove, groove wherein in the first chip unit can controls transfer to the energy size of the second chip unit, groove in second chip unit plays impedance matching, the groove notch of two chip units in each series feed paster is opposed in opposite directions, and between them, be connected with the first transmission line, the length of described first transmission line is half-wavelength, object is by the phase-difference control of two chip units at 180 degree, and described second transmission line is connected with the first chip unit.
2. according to claim 1 a kind of series feed and feedback combine filtering micro-strip array antenna, it is characterized in that: described first chip unit is identical with the radiation intensity of the second chip unit.
3. according to claim 1 a kind of series feed and feedback combine filtering micro-strip array antenna, it is characterized in that: described second transmission line is connected to the another side of the first chip unit confronting grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610013467.9A CN105490036B (en) | 2016-01-07 | 2016-01-07 | Filtering micro-strip array antenna that is a kind of series feed and presenting combination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610013467.9A CN105490036B (en) | 2016-01-07 | 2016-01-07 | Filtering micro-strip array antenna that is a kind of series feed and presenting combination |
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| CN105490036A true CN105490036A (en) | 2016-04-13 |
| CN105490036B CN105490036B (en) | 2018-06-22 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425272A (en) * | 2017-07-18 | 2017-12-01 | 华南理工大学 | Filter antenna array |
| CN107623192A (en) * | 2017-08-23 | 2018-01-23 | 湖南纳雷科技有限公司 | A kind of combination and the micro-strip crossfeed array antenna for presenting power division network |
| CN108493589A (en) * | 2018-05-17 | 2018-09-04 | 华南理工大学 | A kind of filter antenna for wearable device |
| CN110098469A (en) * | 2019-04-15 | 2019-08-06 | 上海瀚唯科技有限公司 | A kind of vehicle-mounted 4D radar antenna of 76.5GHz inhibiting minor lobe using parasitic element |
| CN113113773A (en) * | 2021-03-26 | 2021-07-13 | 谷波技术(常州)有限公司 | Novel anti-interference microstrip array antenna of millimeter wave radar |
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| US6147658A (en) * | 1998-07-06 | 2000-11-14 | Murata Manufacturing Co., Ltd. | Array antenna device and radio equipment |
| US7437187B1 (en) * | 2000-10-30 | 2008-10-14 | Conductus, Inc. | Superconductive filter with capacitive patches providing reduced cross-coupling |
| CN102280677A (en) * | 2010-06-08 | 2011-12-14 | 天津海泰超导电子有限公司 | Dual-bandpass high-temperature superconducting filter |
| CN102522618A (en) * | 2011-12-29 | 2012-06-27 | 北京理工大学 | Active left-handed transmission line formed by lumped element and diode |
| CN103633399A (en) * | 2013-11-19 | 2014-03-12 | 华南理工大学 | Microstrip ultra wide stop band low pass filter |
| CN205355263U (en) * | 2016-01-07 | 2016-06-29 | 华南理工大学 | Filtering microstrip array antenna that series feed shunt feed combines |
-
2016
- 2016-01-07 CN CN201610013467.9A patent/CN105490036B/en not_active Expired - Fee Related
Patent Citations (6)
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| US6147658A (en) * | 1998-07-06 | 2000-11-14 | Murata Manufacturing Co., Ltd. | Array antenna device and radio equipment |
| US7437187B1 (en) * | 2000-10-30 | 2008-10-14 | Conductus, Inc. | Superconductive filter with capacitive patches providing reduced cross-coupling |
| CN102280677A (en) * | 2010-06-08 | 2011-12-14 | 天津海泰超导电子有限公司 | Dual-bandpass high-temperature superconducting filter |
| CN102522618A (en) * | 2011-12-29 | 2012-06-27 | 北京理工大学 | Active left-handed transmission line formed by lumped element and diode |
| CN103633399A (en) * | 2013-11-19 | 2014-03-12 | 华南理工大学 | Microstrip ultra wide stop band low pass filter |
| CN205355263U (en) * | 2016-01-07 | 2016-06-29 | 华南理工大学 | Filtering microstrip array antenna that series feed shunt feed combines |
Non-Patent Citations (1)
| Title |
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| 陈付昌: "新型平面多频带滤波器研究", 《中国博士学位论文全文库》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425272A (en) * | 2017-07-18 | 2017-12-01 | 华南理工大学 | Filter antenna array |
| CN107425272B (en) * | 2017-07-18 | 2023-07-18 | 华南理工大学 | Filtering antenna array |
| CN107623192A (en) * | 2017-08-23 | 2018-01-23 | 湖南纳雷科技有限公司 | A kind of combination and the micro-strip crossfeed array antenna for presenting power division network |
| CN108493589A (en) * | 2018-05-17 | 2018-09-04 | 华南理工大学 | A kind of filter antenna for wearable device |
| CN108493589B (en) * | 2018-05-17 | 2024-05-07 | 华南理工大学 | Filtering antenna for wearable equipment |
| CN110098469A (en) * | 2019-04-15 | 2019-08-06 | 上海瀚唯科技有限公司 | A kind of vehicle-mounted 4D radar antenna of 76.5GHz inhibiting minor lobe using parasitic element |
| CN110098469B (en) * | 2019-04-15 | 2024-03-01 | 上海几何伙伴智能驾驶有限公司 | Vehicle-mounted 4D radar antenna |
| CN113113773A (en) * | 2021-03-26 | 2021-07-13 | 谷波技术(常州)有限公司 | Novel anti-interference microstrip array antenna of millimeter wave radar |
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| Publication number | Publication date |
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| CN105490036B (en) | 2018-06-22 |
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