CN114188714A - Structure of broadband microstrip antenna - Google Patents
Structure of broadband microstrip antenna Download PDFInfo
- Publication number
- CN114188714A CN114188714A CN202111496486.9A CN202111496486A CN114188714A CN 114188714 A CN114188714 A CN 114188714A CN 202111496486 A CN202111496486 A CN 202111496486A CN 114188714 A CN114188714 A CN 114188714A
- Authority
- CN
- China
- Prior art keywords
- printed board
- base
- microstrip antenna
- accommodating cavity
- electric connector
- 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.)
- Pending
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 239000011889 copper foil Substances 0.000 claims description 8
- 239000000523 sample Substances 0.000 claims description 7
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 4
- 238000005476 soldering Methods 0.000 claims description 4
- 230000008859 change Effects 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract description 2
- 238000012546 transfer Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/10—Resonant antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
Landscapes
- Waveguide Aerials (AREA)
Abstract
A structure of a broadband microstrip antenna comprising: the device comprises a base, a printed board and an electric connector; an open accommodating cavity is formed in the top surface of the base, the printed board is arranged in the accommodating cavity, and the printed board and the accommodating cavity form a closed air cavity; the printed board is used for radiating electromagnetic waves; the electric connector is arranged at the center of the lower surface of the base; the electric connector is connected with the printed board; the electric connector is used for transmitting signals to the printed board. In the broadband microstrip antenna structure provided by the invention, the air cavity with a certain height is formed between the printed board and the base to widen the bandwidth of the antenna due to the composite structure with the air cavity. The air has slow heat transfer and low heat conductivity coefficient, and the technical indexes of the antenna can be more stable under the conditions of high temperature or low temperature by adding the air cavity, so that the broadband microstrip antenna structure provided by the invention also enhances the stability of the indexes under the temperature change.
Description
Technical Field
The invention relates to the technical field of antennas, in particular to a structure of a broadband microstrip antenna.
Background
Microstrip antennas are widely used due to their advantages of small size, light weight, easy fabrication, etc., but with the rapid development of radio technology, the requirements for antennas are higher and higher, and antennas with high gain and wide frequency band are needed, so the design of wide frequency band antennas is the development direction of antennas in the future. Due to the inherent structural characteristics of the microstrip antenna, the bandwidth of the microstrip antenna is narrow, the requirement of engineering cannot be met, and the application of the microstrip antenna is greatly limited. At present, the methods capable of widening the bandwidth of the antenna in a limited manner include changing the slot shape, adopting a stacked radiation patch structure, using a dielectric plate with a low dielectric constant and a thick dielectric plate, and the like. When designing the antenna, the above three methods are required to be adopted simultaneously to achieve the purpose of widening the bandwidth.
However, in the conventional microstrip antenna bandwidth widening method, a slot shape and a dielectric constant are generally changed to widen the bandwidth based on a laminated radiating patch structure, but this type of microstrip antenna has a strong surface wave and large backward radiation, and it is difficult to realize engineering between a feed layer and a radiating layer, and the bandwidth can be widened to only several tens of mhz.
Disclosure of Invention
The invention mainly aims to provide a structure of a broadband microstrip antenna, and aims to solve the technical problem.
In order to achieve the above object, the present invention provides a structure of a broadband microstrip antenna, including: the device comprises a base, a printed board and an electric connector; an open accommodating cavity is formed in the top surface of the base, the printed board is arranged in the accommodating cavity, and the printed board and the accommodating cavity form a closed air cavity; the printed board is used for radiating electromagnetic waves; the electric connector is arranged at the center of the lower surface of the base; the probe of the electric connector is connected with the printed board; the electric connector is used for transmitting signals to the printed board.
Preferably, the height of the air chamber is 5 mm.
Preferably, a cover plate is arranged on the accommodating cavity of the base, and the printed board is packaged in the accommodating cavity by the cover plate.
Preferably, the accommodating cavity of the base is a stepped cavity, a first step surface is arranged on the side wall of the accommodating cavity, and the printed board is mounted on the first step surface.
Preferably, a second step surface is arranged on the side wall of the accommodating cavity; the cover plate is mounted on the second step surface.
Preferably, the connection part between the probe of the electric connector and the printed board is welded by soldering tin.
Preferably, a convex debugging copper foil is arranged on the printed board and used for debugging the antenna index.
Preferably, an angular positioning groove is arranged on the circumferential surface of the base.
Preferably, threaded holes are formed in the first step surface and the second step surface, and the printed board is connected with the first step surface and the cover plate is connected with the second step surface through countersunk screws.
Preferably, the electric connector is connected with the lower surface of the base by pan head screws.
Due to the adoption of the technical scheme, the invention has the beneficial effects that:
(1) in the broadband microstrip antenna structure provided by the invention, the air cavity with a certain height is formed between the printed board and the base to widen the bandwidth of the antenna due to the composite structure with the air cavity. Compared with the prior art, the broadband microstrip antenna structure can not only expand the bandwidth of the microstrip antenna to 100 MHz, but also enable the technical index of the antenna to be relatively stable under the condition of high temperature or low temperature due to the fact that air is slow in heat transfer and low in heat conduction coefficient, and further enhance the stability of the index under the condition of temperature change.
(2) The broadband microstrip antenna provided by the invention consists of the cover plate, the printed board, the base and the electric connector, and the base is added, so that the antenna is convenient to mount.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a front view of a structure of a broadband microstrip antenna provided by the present invention;
fig. 2 is a top view of a structure of a broadband microstrip antenna provided by the present invention;
fig. 3 is a schematic structural diagram of a base in the broadband microstrip antenna provided by the present invention;
fig. 4 is a performance test chart obtained by simulating the broadband microstrip antenna provided by the invention by using electromagnetic simulation software;
the reference numbers illustrate: 1-cover plate; 2-a printed board; 201-debugging copper foil; 3-a base; 301-a housing chamber; 302-a first step surface; 303-a second step surface; 304-angular positioning slot; 4-an air cavity; 5-an electrical connector; 6-soldering tin.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1 and fig. 2, a specific embodiment of a structure of a broadband microstrip antenna provided by the present invention includes a base 3, a printed board 2, and an electrical connector 5; an open accommodating cavity 301 is formed in the top surface of the base 3, the printed board 2 is arranged in the accommodating cavity 301, and the printed board 2 and the accommodating cavity 301 form a closed air cavity 4; the printed board 2 is a radiation element of the antenna and is used for radiating electromagnetic waves; the lower surface of the electric connector (5) is in a parabolic spherical shape, the electric connector 5 is installed at the center of the lower surface of the base 3, and the electric connector 5 is connected with the lower surface of the base 3 through pan head screws; the probe of the electric connector 5 is connected with the printed board 2; the electrical connector 5 is used for transmitting signals to the printed board 2.
In this embodiment, the height of the air cavity 4 is 5mm, that is, the distance between the lower surface of the printed board 2 and the bottom of the accommodating cavity 301 is 5mm, and the bandwidth of the microstrip antenna is widened by controlling the height of the air cavity 4.
As shown in fig. 1 and 2, in this embodiment, a cover plate 1 is disposed on the accommodating cavity 301 of the base 3, and the cover plate 1 encapsulates the printed board 2 in the accommodating cavity 301. The cover plate 1 mainly functions to transmit waves, prevent water and dust, and protect the printed board 2.
As shown in fig. 3, in the present embodiment, the accommodating chamber 301 of the base 3 is a stepped cavity, a first step surface 302 is provided on a side wall of the accommodating chamber 301, and the printed board 2 is mounted on the first step surface 302. A second step surface 303 is arranged on the side wall of the accommodating cavity 301; the cover plate 1 is mounted on the second step surface 303. Through setting up first step face 302, second step face 303, can play the positioning action to printed board 2, apron 1 respectively, and it is fixed with the installation of base 3 to be convenient for printed board 2 and apron 1, and is concrete, all be provided with the screw hole on first step face 302, second step face 303, printed board 2 and first step face 302 and apron 1 adopt countersunk screw to connect respectively with second step face 303.
As shown in fig. 1, in the present embodiment, a connection portion between the electrical connector 5 and the printed board 2 is soldered by using solder 6. The probe of the electric connector 5 and the printed board 2 are welded by the soldering tin 6, so that the reliability of connection between the probe and the printed board can be further ensured, and the stability of signal transmission is ensured.
As shown in fig. 2, in this embodiment, a convex debugging copper foil 201 is disposed on the printed board 2, the debugging copper foil 201 is used for debugging the index of the antenna, and the debugging copper foil 201 is a copper foil that is cut by a blade and protrudes from the printed board 2 and is used for debugging the antenna to reach a required antenna resonance point.
As shown in fig. 2, in the present embodiment, an angular positioning groove 304 is provided on the circumferential surface of the base 3. When the whole broadband microstrip antenna is installed on other parts, the angular positioning groove 304 is used for determining the angular direction of the broadband microstrip antenna, so that installation errors are prevented.
Fig. 4 shows a performance test chart obtained by simulating the broadband microstrip antenna provided by the present invention with electromagnetic simulation software, which shows that the bandwidth of the broadband microstrip antenna provided by the present invention is greater than 100 mhz.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A structure of a broadband microstrip antenna is characterized by comprising a base (3), a printed board (2) and an electric connector (5);
an open accommodating cavity (301) is formed in the top surface of the base (3), the printed board (2) is arranged in the accommodating cavity (301), and the printed board (2) and the accommodating cavity (301) form a closed air cavity (4); the printed board (2) is used for radiating electromagnetic waves;
the electric connector (5) is arranged at the center of the lower surface of the base (3); the probe of the electric connector (5) is connected with the printed board (2); the electric connector (5) is used for transmitting signals to the printed board (2).
2. The structure of a broadband microstrip antenna according to claim 1 wherein: the height of the air cavity (4) is 5 mm.
3. The structure of a broadband microstrip antenna according to claim 1 wherein: the base is characterized in that a cover plate (1) is arranged on the accommodating cavity (301) of the base (3), and the printed board (2) is packaged in the accommodating cavity (301) through the cover plate (1).
4. The structure of claim 3, wherein: the accommodating cavity (301) of the base (3) is a stepped cavity, a first step surface (302) is arranged on the side wall of the accommodating cavity (301), and the printed board (2) is installed on the first step surface (302).
5. The structure of claim 3, wherein: a second step surface (303) is arranged on the side wall of the accommodating cavity (301); the cover plate (1) is installed on the second step surface (303).
6. The structure of a broadband microstrip antenna according to claim 1 wherein: and the probe of the electric connector (5) is welded with the connecting part of the printed board (2) by adopting soldering tin (6).
7. The structure of a broadband microstrip antenna according to claim 1 wherein: the printed board (2) is provided with a convex debugging copper foil (201), and the debugging copper foil (201) is used for debugging the antenna index.
8. The structure of a broadband microstrip antenna according to claim 7 wherein: an angular positioning groove (304) is arranged on the circumferential surface of the base (3).
9. The structure of claim 4, wherein: threaded holes are formed in the first step surface (302) and the second step surface (303), and the printed board (2) is connected with the first step surface (302) and the cover plate (1) is connected with the second step surface (303) through countersunk screws.
10. The structure of a broadband microstrip antenna according to claim 1 wherein: the electric connector (5) is connected with the lower surface of the base (3) through pan head screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111496486.9A CN114188714A (en) | 2021-12-08 | 2021-12-08 | Structure of broadband microstrip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111496486.9A CN114188714A (en) | 2021-12-08 | 2021-12-08 | Structure of broadband microstrip antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114188714A true CN114188714A (en) | 2022-03-15 |
Family
ID=80542856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111496486.9A Pending CN114188714A (en) | 2021-12-08 | 2021-12-08 | Structure of broadband microstrip antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114188714A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204289691U (en) * | 2014-07-25 | 2015-04-22 | 北京航天长征飞行器研究所 | A kind of small-sized three anti-satellite reception active antennas |
| CN104836015A (en) * | 2015-05-28 | 2015-08-12 | 深圳市华颖泰科电子技术有限公司 | Broadband capacitive coupling laminated GNSS antenna |
| CN204793580U (en) * | 2015-07-14 | 2015-11-18 | 无锡市同步电子科技有限公司 | Electric connector casting glue mould |
| CN205666326U (en) * | 2016-06-08 | 2016-10-26 | 嘉善金昌电子有限公司 | Super thick light GNSS antenna of silk screen printing through hole |
| CN106848526A (en) * | 2016-12-19 | 2017-06-13 | 北京遥测技术研究所 | A kind of full navigation system Portable economic high accuracy navigation antenna |
| CN206712017U (en) * | 2017-04-28 | 2017-12-05 | 上海旦迪通信技术有限公司 | A kind of Big Dipper location navigation antenna |
| CN109873249A (en) * | 2017-12-04 | 2019-06-11 | 北京自动化控制设备研究所 | A kind of micro-strip navigation antenna with air back chamber |
| CN109921199A (en) * | 2019-03-05 | 2019-06-21 | 成都雷电微力科技有限公司 | A kind of airproof T/R module of double bamboo plywood transceiving chip |
| CN110911809A (en) * | 2019-12-29 | 2020-03-24 | 南京屹信航天科技有限公司 | Satellite-borne ceramic antenna |
| CN213460097U (en) * | 2020-12-16 | 2021-06-15 | 厦门松元电子有限公司 | Circular positioning antenna of full-frequency GNSS navigation system |
-
2021
- 2021-12-08 CN CN202111496486.9A patent/CN114188714A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204289691U (en) * | 2014-07-25 | 2015-04-22 | 北京航天长征飞行器研究所 | A kind of small-sized three anti-satellite reception active antennas |
| CN104836015A (en) * | 2015-05-28 | 2015-08-12 | 深圳市华颖泰科电子技术有限公司 | Broadband capacitive coupling laminated GNSS antenna |
| CN204793580U (en) * | 2015-07-14 | 2015-11-18 | 无锡市同步电子科技有限公司 | Electric connector casting glue mould |
| CN205666326U (en) * | 2016-06-08 | 2016-10-26 | 嘉善金昌电子有限公司 | Super thick light GNSS antenna of silk screen printing through hole |
| CN106848526A (en) * | 2016-12-19 | 2017-06-13 | 北京遥测技术研究所 | A kind of full navigation system Portable economic high accuracy navigation antenna |
| CN206712017U (en) * | 2017-04-28 | 2017-12-05 | 上海旦迪通信技术有限公司 | A kind of Big Dipper location navigation antenna |
| CN109873249A (en) * | 2017-12-04 | 2019-06-11 | 北京自动化控制设备研究所 | A kind of micro-strip navigation antenna with air back chamber |
| CN109921199A (en) * | 2019-03-05 | 2019-06-21 | 成都雷电微力科技有限公司 | A kind of airproof T/R module of double bamboo plywood transceiving chip |
| CN110911809A (en) * | 2019-12-29 | 2020-03-24 | 南京屹信航天科技有限公司 | Satellite-borne ceramic antenna |
| CN213460097U (en) * | 2020-12-16 | 2021-06-15 | 厦门松元电子有限公司 | Circular positioning antenna of full-frequency GNSS navigation system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10749263B2 (en) | Printed circuit board mounted antenna and waveguide interface | |
| US6943749B2 (en) | Printed circuit board dipole antenna structure with impedance matching trace | |
| US8164535B2 (en) | Coplanar waveguide FED planar log-periodic antenna | |
| CN110006504B (en) | Circuit board for a radar level gauge having a waveguide coupling device | |
| CN217655285U (en) | Radar structure | |
| CN114188714A (en) | Structure of broadband microstrip antenna | |
| CN114624654B (en) | Radar structure and vehicle-mounted radar equipment | |
| CN213340725U (en) | WIFI antenna structure and wireless communication equipment | |
| CN210926323U (en) | Strong penetration antenna device | |
| CN114188713A (en) | Structure of double-frequency broadband microstrip antenna | |
| CN109326879B (en) | Signal transmission device and television | |
| KR20040073999A (en) | Low cost antennas and electromagnetic(EMF) absorption in electronic circuit packages or transceivers using conductive loaded resin-based materials | |
| CN218412879U (en) | Millimeter wave radar and unmanned aerial vehicle | |
| CN219227952U (en) | Integrated coupling structure | |
| CN112117534A (en) | High-isolation dual-polarization magnetoelectric dipole antenna based on PCB and optimization method | |
| CN219457993U (en) | Coupling structure and coupling device | |
| CN218070194U (en) | Antenna and communication equipment | |
| CN218415027U (en) | Antenna structure of radio frequency generator | |
| CN110611152A (en) | Miniaturized conformal antenna | |
| CN219477001U (en) | Compact DRA antenna module | |
| CN220474908U (en) | Double-line polarized horn antenna | |
| WO2023226758A1 (en) | Radiation unit, base station antenna and base station antenna feed system | |
| CN219717426U (en) | Connector and connecting assembly thereof | |
| CN220963747U (en) | Printed oscillator antenna | |
| CN212908063U (en) | Duplex antenna radio frequency board, antenna structure and antenna system of level meter |
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 |