CN110931970A - Microstrip patch antenna unit convenient to tune - Google Patents
Microstrip patch antenna unit convenient to tune Download PDFInfo
- Publication number
- CN110931970A CN110931970A CN201911256682.1A CN201911256682A CN110931970A CN 110931970 A CN110931970 A CN 110931970A CN 201911256682 A CN201911256682 A CN 201911256682A CN 110931970 A CN110931970 A CN 110931970A
- Authority
- CN
- China
- Prior art keywords
- patch
- antenna unit
- metal back
- back cavity
- patch antenna
- Prior art date
- 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.)
- Granted
Links
Images
Classifications
-
- 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
- H01Q1/12—Supports; Mounting means
-
- 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 relates to the technical field of radar antennas, in particular to a microstrip patch antenna unit convenient to tune, which is suitable for an antenna system of a broadband phased array radar. The radiation patch, the H-shaped coupling slot patch, the feed patch, the bracket and the metal back cavity are sequentially stacked and arranged from top to bottom, and the position between the bracket and the metal back cavity can be adjusted by moving up and down. The device is convenient for batch production and processing.
Description
Technical Field
The invention relates to the technical field of radar antennas, in particular to a microstrip patch antenna unit convenient to tune, which is suitable for an antenna system of a broadband phased array radar.
Background
The microstrip patch antenna has the advantages of light weight, small volume, low section, good processing consistency, easiness in conformal, low cost and the like, so that the microstrip patch antenna is widely researched and applied, but the narrow frequency band of the microstrip patch antenna is always suffered by people, and the relative bandwidth of a common microstrip patch antenna is only about 3%. Therefore, the method has important significance for developing the work of widening the working frequency band of the microstrip patch antenna. The conventional means for widening the bandwidth of the microstrip patch antenna are more, such as increasing the thickness of the microstrip substrate, reducing the dielectric constant of the microstrip substrate, and the like. Expanding the bandwidth by increasing the thickness of the microstrip substrate can increase the excitation of surface waves, and bring negative effects such as reduction of isolation, reduction of radiation efficiency and the like; broadening the bandwidth by lowering the dielectric constant is effective but has limited potential.
At present, a microstrip patch antenna has a certain application in a narrow-band radar, but the application in a radar of a broadband phased array system is less, and in recent years, with the rapid development of a polarization technology in the field of radars, the phased array has more and more demands on microstrip patch antenna units and higher demands. The antenna unit is required to have the characteristics of wider bandwidth, higher structural strength, lower profile, smaller size, lower cost, lighter weight, convenience for conformality and array surface integration and the like. Meanwhile, due to the deviation between the simulation design value and the actual measurement value of the electrical parameters of the antenna, the index requirements can be met only by re-processing a new set of antenna after the structural parameters needing to be adjusted are determined in the debugging process. This greatly increases the economic and time costs.
Moreover, the existing large active phased array radar generally has thousands of antenna units, the consistency of the antenna units determines the performance of the whole radar, the workload for debugging the thousands of antenna units is huge, the consumed time is long, and the debugging period of the whole radar is long.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a microstrip patch antenna unit convenient for tuning, the depth of a metal back cavity of the microstrip patch antenna unit is the most critical parameter, and the microstrip patch antenna unit can play a decisive role in the quality of the electrical performance index of the microstrip patch antenna unit, so that the antenna unit can be used for processing and debugging an external field antenna by adjusting the depth of the metal back cavity, and is convenient for batch production and processing.
The technical scheme of the invention is as follows: the utility model provides a microstrip patch antenna element convenient to tune, includes radiation patch, H type coupling slot paster, feed paster, support, metal back of the body chamber, connector, and the outer conductor of connector passes the bottom contact of support and feed paster, and the inner conductor of connector passes the metal wire connection of support and feed paster upper surface, its characterized in that: the radiation patch, the H-shaped coupling slot patch, the feed patch, the support and the metal back cavity are sequentially stacked and arranged from top to bottom, and the position between the support and the metal back cavity can be adjusted by moving up and down.
According to a microstrip patch antenna unit convenient to tune as mentioned above, characterized in that: the metal back cavity is provided with scales.
According to a microstrip patch antenna unit convenient to tune as mentioned above, characterized in that: also comprises a waist round hole and a fastening screw, wherein the waist round hole is formed on the side wall of the metal back cavity, the waist round hole is internally tapped with a thread for matching and fixing the fastening screw,
according to a microstrip patch antenna unit convenient to tune as mentioned above, characterized in that: the radiation patch, the H-shaped coupling gap patch and the feed patch are connected in a pressing mode through a half-wave plate thermal compression process and are fixed on the support through screws.
According to a microstrip patch antenna unit convenient to tune as mentioned above, characterized in that: the radiation patch is a rectangular PTFE ceramic copper clad plate, the thickness is 3 mm-5 mm, the length is 120 mm-130 mm, the width is 100 mm-120 mm, and the dielectric constant is 2-3.6.
According to a microstrip patch antenna unit convenient to tune as mentioned above, characterized in that: the H-shaped coupling gap patch is a rectangular PTFE ceramic copper clad plate, the thickness is 1 mm-3 mm, the length is 120 mm-130 mm, the width is 100 mm-120 mm, and the dielectric constant is 2-3.6.
According to a microstrip patch antenna unit convenient to tune as mentioned above, characterized in that: the feed patch is a rectangular PTFE ceramic copper-clad plate, the thickness is 1 mm-3 mm, the length is 120 mm-130 mm, the width is 100 mm-120 mm, and the dielectric constant is 2-3.6.
According to a microstrip patch antenna unit convenient to tune as mentioned above, characterized in that: the bracket is of a cuboid frame structure, the height of the bracket is 8-10 mm, the bracket is made of aluminum alloy, the wall thickness is 2-5 mm, the length is 120-130 mm, and the width is 100-120 mm; the metal back cavity is of a cuboid structure and made of aluminum alloy, the wall thickness is 2 mm-5 mm, the length is 120 mm-130 mm, and the width is 100 mm-120 mm.
The invention has the beneficial effects that: firstly, be convenient for batch production processing. And secondly, when the standing-wave ratio is not more than 1.3, the relative bandwidth is more than 40% (the relative bandwidth of the conventional microstrip patch antenna is only about 3%), and the debugging is convenient after the assembly is finished.
Drawings
Fig. 1 is a schematic view of a radiation patch structure of the antenna of the present invention.
Fig. 2 is a schematic diagram of an H-type coupling slot patch structure of the antenna of the present invention.
Fig. 3 is a schematic diagram of a feed patch structure of the antenna of the present invention.
Fig. 4 is a front view of the antenna of the present invention.
Fig. 5 is a top view of the antenna of the present invention.
Fig. 6 is a cross-sectional view of an antenna of the present invention.
Fig. 7 shows the simulation result of standing wave ratio of the antenna of the present invention.
Description of reference numerals: the antenna comprises a radiation patch 1, an H-shaped coupling slot patch 2, a feed patch 3, a support 4, a waist circular hole 5, a fastening screw 6, a metal back cavity 7 and a connector 8.
Detailed Description
The invention is further illustrated below with reference to the figures and examples.
As shown in fig. 1 to 6, the microstrip patch antenna unit convenient for tuning of the present invention includes a radiation patch 1, an H-type coupling slot patch 2, a feed patch 3, a bracket 4, a waist circular hole 5, a fastening screw 6, a metal back cavity 7, and a connector 8. The radiation patch 1, the H-shaped coupling gap patch 2, the feed patch 3, the support 4 and the metal back cavity 7 are sequentially stacked and arranged from top to bottom, the radiation patch 1, the H-shaped coupling gap patch 2 and the feed patch 3 are connected in a pressing mode through a half-wave chip hot compression process and fixed on the support 4 through screws, the outer conductor of the connector 8 penetrates through the support 4 to be in contact with the bottom of the feed patch 3, and the inner conductor of the connector 8 penetrates through the support 4 and the feed patch 3 to be connected with a metal wire on the upper surface of the feed patch 3.
Because the antenna unit is provided with the adjustable metal resonant cavity formed by the support 4 and the metal back cavity 7, the existence of the adjustable metal resonant cavity is equivalent to the introduction of a larger equivalent capacitor in a system transmission function, and the introduction of the equivalent capacitor can effectively widen the working frequency band of the antenna. When the simulation value and the measured value are different, the machining is not needed to be carried out again, the position between the bracket 4 and the metal back cavity 7 can be adjusted up and down and fixed through the fastening screw 6, and the problem that the simulation design value and the actual required value have deviation can be solved. When the product is debugged, the indexes of the working frequency band, standing-wave ratio, radiation efficiency and the like of the antenna can be adjusted only by adjusting the relative positions of the bracket 4 and the metal back cavity 7.
The metal back cavity 7 of the invention is preferably provided with scales, the precision of the scales should meet the requirement of the working frequency band of the antenna on the precision (if the antenna works in an L wave band, the scales should be accurate to 1mm, the higher the frequency band is, the higher the precision requirement is), and the relative position between the bracket 4 and the metal back cavity 7 can be read through the scales. When the mass production is carried out, the products are fixedly installed only by ensuring that the scales of different products are the same when the processing technology of the products is consistent, and if the products have processing flaws to cause performance change, the processing errors among batches can be eliminated by adjusting the relative positions of the metal back cavity 7 and the bracket 4 when the errors are within a controllable range, the quality problems of a production workshop can be found and solved in real time conveniently, and the quality control among the batches is ensured by a simple method. By adopting the simple method, the consistency of the array elements (generally up to thousands of antenna units) of the large active phased array antenna is effectively ensured, and for the large active phased array antenna, the consistency of the antenna array elements can play a decisive role in the performance of the whole radar.
The distance between the bracket 4 and the metal back cavity 7 can be adjusted in other ways, such as setting a waist-round hole on the bracket 4, or by sliding locking, so long as the distance between the bracket 4 and the metal back cavity 7 can be adjusted.
The radiation patch 1 is a rectangular PTFE ceramic copper clad plate, the thickness is 3 mm-5 mm, the preferential thickness is 4.5mm, the length is 120 mm-130 mm, the width is 100 mm-120 mm, the dielectric constant is 2-3.6, the preferential thickness is 3.48, the front surface of the radiation patch 1 is shown in figure 1, and the shaded part is copper clad.
The H-shaped coupling gap patch 2 is a rectangular PTFE ceramic copper-clad plate, the thickness is 1 mm-3 mm, the optimal thickness is 1.5mm, the length is 120 mm-130 mm, the width is 100 mm-120 mm, the dielectric constant is 2-3.6, the optimal dielectric constant is 3.48, the front surface of the H-shaped coupling gap patch 2 is shown in figure 2, and the shaded part is copper clad.
The feed patch 3 is a rectangular PTFE ceramic copper clad plate, the thickness is 1 mm-3 mm, the preferential thickness is 1.5mm, the length is 120 mm-130 mm, the width is 100 mm-120 mm, the dielectric constant is 2-3.6, the preferential thickness is 3.48, the front surface of the feed patch 3 is shown in figure 3, and the shaded part is copper clad.
The bracket 4 is of a cuboid frame structure, the height of the bracket is 8-10 mm, the bracket is made of aluminum alloy, the wall thickness is 2-5 mm, the length is 120-130 mm, and the width is 100-120 mm.
The waist circular hole 5 is formed in the side wall of the metal back cavity 7, the waist circular hole is 5-8 mm long, threads for fixing the fastening screw 6 are tapped in the waist circular hole, the fastening screw 6 fixing hole is formed in the support 4, so that the metal back cavity 7 can move up and down on the support 4 by loosening the fastening screw 6, and the metal back cavity 7 is fixedly connected with the support 4 by fixing the fastening screw 6.
The fastening screw 6 of the present invention is a metal screw of M3 × 8.
The metal back cavity 7 is of a cuboid structure and made of aluminum alloy, the wall thickness is 2 mm-5 mm, the length is 120 mm-130 mm, and the width is 100 mm-120 mm.
The external conductor of the SMA type connector 8 of the invention passes through the bracket 4 to contact the bottom of the feed patch 3, and the internal conductor of the connector 8 passes through the bracket 4 and the feed patch 3 to be connected with the metal wire on the upper surface of the feed patch 3. The connector 8 of the present invention may be an SMA type elbow connector.
It can be seen from the curves in fig. 7 that the introduction of the metal back cavity 4 and the tuning metal post 5 increases the poles (resonance points) of the system transfer function, widening the relative bandwidth, so that the relative bandwidth is greater than 40% when the standing-wave ratio is not greater than 1.3.
Claims (8)
1. The utility model provides a microstrip patch antenna element convenient to tune, includes radiation patch, H type coupling slot paster, feed paster, support, metal back of the body chamber, connector, and the outer conductor of connector passes the bottom contact of support and feed paster, and the inner conductor of connector passes the metal wire connection of support and feed paster upper surface, its characterized in that: the radiation patch, the H-shaped coupling slot patch, the feed patch, the support and the metal back cavity are sequentially stacked and arranged from top to bottom, and the position between the support and the metal back cavity can be adjusted by moving up and down.
2. The microstrip patch antenna unit of claim 1 wherein: the metal back cavity is provided with scales.
3. The microstrip patch antenna unit of claim 1 wherein: the metal back cavity is characterized by further comprising a waist circular hole and a fastening screw, wherein the waist circular hole is formed in the side wall of the metal back cavity, and threads for fixing the fastening screw are screwed in the waist circular hole in a matched mode.
4. A microstrip patch antenna unit for facilitating tuning according to any of claims 1 to 3 wherein: the radiation patch, the H-shaped coupling gap patch and the feed patch are connected in a pressing mode through a half-wave plate thermal compression process and are fixed on the support through screws.
5. A microstrip patch antenna unit for facilitating tuning according to any of claims 1 to 3 wherein: the radiation patch is a rectangular PTFE ceramic copper clad plate, the thickness is 3 mm-5 mm, the length is 120 mm-130 mm, the width is 100 mm-120 mm, and the dielectric constant is 2-3.6.
6. A microstrip patch antenna unit for facilitating tuning according to any of claims 1 to 3 wherein: the H-shaped coupling gap patch is a rectangular PTFE ceramic copper clad plate, the thickness is 1 mm-3 mm, the length is 120 mm-130 mm, the width is 100 mm-120 mm, and the dielectric constant is 2-3.6.
7. A microstrip patch antenna unit for facilitating tuning according to any of claims 1 to 3 wherein: the feed patch is a rectangular PTFE ceramic copper-clad plate, the thickness is 1 mm-3 mm, the length is 120 mm-130 mm, the width is 100 mm-120 mm, and the dielectric constant is 2-3.6.
8. A microstrip patch antenna unit for facilitating tuning according to any of claims 1 to 3 wherein: the bracket is of a cuboid frame structure, the height of the bracket is 8-10 mm, the bracket is made of aluminum alloy, the wall thickness is 2-5 mm, the length is 120-130 mm, and the width is 100-120 mm; the metal back cavity is of a cuboid structure and made of aluminum alloy, the wall thickness is 2 mm-5 mm, the length is 120 mm-130 mm, and the width is 100 mm-120 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911256682.1A CN110931970B (en) | 2019-12-10 | 2019-12-10 | Microstrip patch antenna unit convenient to tune |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911256682.1A CN110931970B (en) | 2019-12-10 | 2019-12-10 | Microstrip patch antenna unit convenient to tune |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110931970A true CN110931970A (en) | 2020-03-27 |
| CN110931970B CN110931970B (en) | 2021-10-22 |
Family
ID=69859288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911256682.1A Active CN110931970B (en) | 2019-12-10 | 2019-12-10 | Microstrip patch antenna unit convenient to tune |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110931970B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050054317A1 (en) * | 2003-09-09 | 2005-03-10 | Haeng-Sook Ro | Microstrip patch antenna having high gain and wideband |
| US20070132642A1 (en) * | 2005-12-08 | 2007-06-14 | Elta Systems Ltd. | Patch antenna element and application thereof in a phased array antenna |
| CN101394024A (en) * | 2008-11-06 | 2009-03-25 | 上海交通大学 | Ultra-wideband elliptical slot antenna having back chamber |
| CN104319464A (en) * | 2014-10-29 | 2015-01-28 | 中国人民解放军理工大学 | UHF waveband satellite communication dual-band circularly polarized antenna device |
| CN110098453A (en) * | 2018-01-31 | 2019-08-06 | 株式会社Kmw | Radio-frequency filter |
| CN110197946A (en) * | 2019-05-22 | 2019-09-03 | 成都海澳科技有限公司 | High-gain microstrip antenna |
| CN209344310U (en) * | 2018-12-06 | 2019-09-03 | 湖南金翎箭信息技术有限公司 | A kind of C-band Space Coupling fed microstrip antenna |
| CN110265782A (en) * | 2019-05-22 | 2019-09-20 | 成都海澳科技有限公司 | Double coupled microstrip antennas and aerial array |
| CN110277620A (en) * | 2019-05-27 | 2019-09-24 | 西安空间无线电技术研究所 | A kind of tracery type butler matrix and its design method |
-
2019
- 2019-12-10 CN CN201911256682.1A patent/CN110931970B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050054317A1 (en) * | 2003-09-09 | 2005-03-10 | Haeng-Sook Ro | Microstrip patch antenna having high gain and wideband |
| US20070132642A1 (en) * | 2005-12-08 | 2007-06-14 | Elta Systems Ltd. | Patch antenna element and application thereof in a phased array antenna |
| CN101394024A (en) * | 2008-11-06 | 2009-03-25 | 上海交通大学 | Ultra-wideband elliptical slot antenna having back chamber |
| CN104319464A (en) * | 2014-10-29 | 2015-01-28 | 中国人民解放军理工大学 | UHF waveband satellite communication dual-band circularly polarized antenna device |
| CN110098453A (en) * | 2018-01-31 | 2019-08-06 | 株式会社Kmw | Radio-frequency filter |
| CN209344310U (en) * | 2018-12-06 | 2019-09-03 | 湖南金翎箭信息技术有限公司 | A kind of C-band Space Coupling fed microstrip antenna |
| CN110197946A (en) * | 2019-05-22 | 2019-09-03 | 成都海澳科技有限公司 | High-gain microstrip antenna |
| CN110265782A (en) * | 2019-05-22 | 2019-09-20 | 成都海澳科技有限公司 | Double coupled microstrip antennas and aerial array |
| CN110277620A (en) * | 2019-05-27 | 2019-09-24 | 西安空间无线电技术研究所 | A kind of tracery type butler matrix and its design method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110931970B (en) | 2021-10-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101777703B (en) | High-gain and high-power antenna based on materials with low refractive index | |
| CN112864636A (en) | Ultra-wideband metal Vivaldi dual-polarized antenna | |
| CN110931970B (en) | Microstrip patch antenna unit convenient to tune | |
| CN104466429A (en) | Millimeter wave one-dimensional single-pulse biplane reflecting antenna | |
| KR101056019B1 (en) | Broadband flat antenna | |
| CN201378629Y (en) | High gain metallic resonant cavity antenna | |
| CN205941705U (en) | Compound dielectric constant measurement element | |
| CN2789948Y (en) | Substrate integrated wave guide double-frequency wideband slot array antenna unit | |
| CN110829007B (en) | L-band microstrip patch antenna unit | |
| Zhang et al. | Developme nt of circularly polarized antennas based on dual-mode hexagonal SIW cavity | |
| CN109342825A (en) | A kind of coaxial resonance test device and test method | |
| Zakaria et al. | Design of a circular microstrip antenna | |
| Du et al. | Wideband low-profile H-shaped dielectric patch antennas based microwave dielectric ceramics | |
| CN105789911B (en) | Circular polarisation elliptical beam circular array electromagnetic horn unit | |
| CN210167506U (en) | Conformal RFID antenna applied to switch cabinet contact | |
| CN210894444U (en) | Novel test probe | |
| Pan et al. | Circularly polarized V-shaped patch antenna for RFID application | |
| CN105445563A (en) | Device and method for measuring parameters of BST ceramic in X waveband | |
| CN206332185U (en) | A kind of broadband low section carries on the back chamber microstrip gap array antenna altogether | |
| Xu | Broadband Microstrip Antenna Overview | |
| Zhong et al. | A 97-GHz-Band High-Gain 8× 8 Waveguide Slot Array Antenna | |
| CN109460585A (en) | A kind of millimetre-wave radar microstrip antenna designs scaling method | |
| CN215816406U (en) | Horizontal polarization antenna and antenna array | |
| CN109599669A (en) | A kind of communication antenna of miniaturization vertical polarization multiband work | |
| Xiaopeng et al. | Design of C-band Dual-polarized waveguide slot Antenna for Spaceborne SAR |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200611 Address after: 51 No. 430205 Hubei province Wuhan City Liufang high tech Development Zone East Lake Road Applicant after: WUHAN BINHU ELECTRONIC Co.,Ltd. Address before: No. 103-2, Hong Kong Road, Jiang'an District, Wuhan City, Hubei Province Applicant before: Xu Huamin |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |