NL2032457B1 - Circularly polarized antenna working in beidou, gps and 5g frequency bands - Google Patents
Circularly polarized antenna working in beidou, gps and 5g frequency bands Download PDFInfo
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- NL2032457B1 NL2032457B1 NL2032457A NL2032457A NL2032457B1 NL 2032457 B1 NL2032457 B1 NL 2032457B1 NL 2032457 A NL2032457 A NL 2032457A NL 2032457 A NL2032457 A NL 2032457A NL 2032457 B1 NL2032457 B1 NL 2032457B1
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- Netherlands
- Prior art keywords
- layer
- beidou
- gps
- ghz
- frequency bands
- Prior art date
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- 239000002184 metal Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 230000005684 electric field Effects 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 230000005672 electromagnetic field Effects 0.000 claims description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 4
- 229910052737 gold Inorganic materials 0.000 claims description 4
- 239000010931 gold Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 239000004332 silver Substances 0.000 claims description 4
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims description 2
- 239000003063 flame retardant Substances 0.000 claims description 2
- 238000001259 photo etching Methods 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims description 2
- 230000006854 communication Effects 0.000 abstract description 11
- 238000004891 communication Methods 0.000 abstract description 10
- 230000010287 polarization Effects 0.000 abstract description 6
- 238000003754 machining Methods 0.000 abstract description 2
- 230000005855 radiation Effects 0.000 description 24
- 238000010586 diagram Methods 0.000 description 4
- 238000004088 simulation Methods 0.000 description 3
- 241000220300 Eupsilia transversa Species 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229940009188 silver Drugs 0.000 description 2
- 206010001497 Agitation Diseases 0.000 description 1
- 241000282326 Felis catus Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/0428—Substantially flat resonant element parallel to ground plane, e.g. patch antenna radiating a circular polarised wave
-
- 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
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
- H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
- H01Q5/364—Creating multiple current paths
Landscapes
- Waveguide Aerials (AREA)
Abstract
Disclosed is a circularly polarized antenna working in Beidou, GPS and 5G frequency bands. The antenna consists of a lower grounding layer, a middle dielectric layer and an upper L—shaped, branch patch layer, and, the microstrip antenna can generate four‘ pass 5 bands in a communication. frequency range of l GHz—ll GHz, the first pass band falling within the Beidou and GPS frequency bands, the second pass band falling within the 5G frequency band, and the third, pass band falling within a WIFI 6E frequency band. The microstrip antenna, with axial ratios less than 3 dB, has a 10 circular polarization feature. A microstrip line is used for feeding, such that a structure is simple, and a machining cost is low. The circularly polarized antenna working in Beidou, GPS and 5G frequency bands can be widely used in the fields of satellite navigation, 5G communication, etc.
Description
P1466/NLpd
CIRCULARLY POLARIZED ANTENNA WORKING IN BEIDOU, GPS AND 5G
FREQUENCY BANDS
The present invention belongs to the technical field of an- tennas, and relates to a circularly polarized antenna working in
Beidou, GPS and 5G frequency bands.
As the spaceflight industry in China advances, a Beidou sat- ellite navigation system has completed networking and becomes the third mature satellite navigation system after GPS and GLONASS. As an essential component in a communication process between a user and a satellite, a circularly polarized antenna has become a hot spot of research in the antenna field. An electromagnetic wave is reflected and refracted in the propagation process to cause polar- ization direction deflection, so the polarization direction of the electromagnetic wave at a reception end is different from that of the antenna; and a circularly polarized wave has small attenuation in rain and snow weather and high capability of penetrating the ionosphere, and is not influenced by the Faraday effect generated by the two-pole magnetic field of the earth, and mounting and de- bugging are simple, so a microstrip antenna is usually used for the Beidou navigation system. The circularly polarized antenna not only is widely used in the field of satellite comunication, but also has important application in broadcast television, electronic countermeasure, electronic investigation and other aspects. The satellite communication mainly has Beidou communication and GPS communication, and has four communication frequency bands, so the circularly polarized antenna capable of covering the four satel- lite communication frequency bands simultaneously has important research value; moreover, the development of 5G and WIFI 6E tech- nologies brings great improvement of the data transmission rate and shorter network delay, thereby providing great convenience for the life of people; and therefore, the antenna capable of simulta-
neously achieving matching of the multiple frequency bands of Bei- dou, GPS, 5G and WIFI 6E has very wide application value and inno- vative significance.
Objective of the present invention: for the problems, the present invention provides a circularly polarized antenna working in Beidou, GPS and 5G frequency bands. The antenna may generate four pass bands in a communication frequency range of 1 GHz-10
GHz, the first pass band falling within the Beidou and GPS fre- quency bands and having a circular polarization feature, so as to achieve use in a satellite communication frequency band, the sec- ond pass band also having a circular polarization feature in the 5G frequency band, so as to achieve communication in the 5G fre- quency band, and the third frequency band being used in a WIFI 6E frequency band. A microstrip line feeding mode is used in the pre- sent invention, a structure is simple, machining difficulty is low, and cost is low.
Technical solution: for achieving the objective of the pre- sent invention, the present invention uses a technical solution: a circularly polarized antenna working in Beidou, GPS and 5G fre- quency bands consists of a dielectric substrate, a radiator and a grounding plate, where the antenna sequentially includes a ground- ing layer (3), a dielectric layer (2) and a patch layer (1) from bottom to top; the grounding layer is used for exciting a high- frequency electromagnetic field together with the microstrip patch layer and radiating the high-frequency electromagnetic field out- wards by means of a gap around the grounding layer and the mi- crostrip patch layer; the dielectric layer is used for forming a cavity resonator; and the patch layer is a metal thin layer with a specific shape by means of a photoetching process to serve as a radiator.
Further, the patch layer (1) includes a metal layer of an L- shaped feed branch, and the metal layer of the L-shaped feed branch is used for exciting and radiating an effective electric field.
Further, the grounding layer (3) and the patch layer (1) have a thickness of 0 mm-0.035 mm, may be made of metal of gold, sil- ver, copper, etc., and may also be made of conductive materials with conductivity equivalent to that of gold, silver and copper.
Further, the dielectric layer (2) has a size of 80 mm * 80 mm * 1.6 mm, and the size may float up and down by 0.1 mm on the ba- sis of the size; and the material is a flame retardant level 4 (FR4) material with a dielectric constant of 4.4 and has a loss tangent of 0.02. 1. An L-shaped feed branch and a rectangular-ring grounding plate are combined to generate a multi-band antenna with one pass band in the Beidou and GPS frequency bands, one pass band in the 5G frequency band and one pass band in the WIFI 6E frequency band. 2. On a theoretical basis of a microstrip patch antenna, a size of the antenna, a size of a patch metal, a shape of the patch metal and a thickness of a dielectric are designed through an equivalent circuit method, and the antenna working in different frequency bands may be designed by means of one circuit.
FIG. 1 is a three-dimensional structural schematic diagram of a circularly polarized antenna working in Beidou, GPS and 5G fre- quency bands in the present invention.
FIG. 2 is a top view of a circularly polarized antenna work- ing in Beidou, GPS and 5G frequency bands in the present inven- tion.
FIG. 3 is a reflection coefficient simulation diagram of a circularly polarized antenna working in Beidou, GPS and 5G fre- quency bands at 0.9 GHz-10.5 GHz in the present invention.
FIG. 4 is an axial ratio simulation diagram of a circularly polarized antenna working in Beidou, GPS and 5G frequency bands at 1 GHz-8 GHz in the present invention.
FIG. 5 is an antenna radiation pattern of plane E of a circu- larly polarized antenna working in Beidou, GPS and 5G frequency bands at 1.5 GHz in the present invention.
FIG. 6 is an antenna radiation pattern of plane H of a circu- larly polarized antenna working in Beidou, GPS and 5G frequency bands at 1.5 GHz in the present invention.
FIG. 7 is an antenna radiation pattern of plane E of a circu- larly polarized antenna working in Beidou, GPS and 5G frequency bands at 3.3 GHz in the present invention.
FIG. 8 is an antenna radiation pattern of plane H of a circu- larly polarized antenna working in Beidou, GPS and 5G frequency bands at 3.3 GHz in the present invention.
FIG. 9 is an antenna radiation pattern of plane E of a circu- larly polarized antenna working in Beidou, GPS and 5G frequency bands at 6.5 GHz in the present invention.
FIG. 10 is an antenna radiation pattern of plane H of a cir- cularly polarized antenna working in Beidou, GPS and 5G frequency bands at 6.5 GHz in the present invention.
FIG. 11 is an antenna radiation pattern of plane E of a cir- cularly polarized antenna working in Beidou, GPS and 5G frequency bands at 9.5 GHz in the present invention.
FIG. 12 is an antenna radiation pattern of plane H of a cir- cularly polarized antenna working in Beidou, GPS and 5G frequency bands at 9.5 GHz in the present invention.
The present invention relates to a circularly polarized an- tenna working in Beidou, GPS and 5G frequency bands. The present invention is described in more detail below in combination with accompanying drawings and technical solutions.
A circularly polarized antenna working in Beidou, GPS, 5G and
WIFI 6E frequency bands has a three-dimensional structural sche- matic diagram as shown in FIG. 1, the circularly polarized antenna sequentially includes a grounding layer (3), a dielectric layer (2) and a patch layer (1) from bottom to top; and the microstrip patch layer includes a metal layer of an L-shaped feed branch, and the metal layer of the L-shaped feed branch is used for exciting and radiating an effective electric field.
Working principle: when a power supply is connected to a feeder line by means of an SMA adapter to feed the antenna, the dielectric layer provides the cavity resonator, and equivalent LC resonance is generated between the grounding layer and the mi- crostrip patch layer to excite and radiate an effective electric field. At 1.5 GHz, a right side of the L-shaped branch has large surface current distribution, which indicates that the right side of the L-shaped branch is a main radiation unit at a low frequency band of 1.15 GHz-2.11 GHz. At 4.6 GHz, a lower side of the L- 5 shaped branch and a lower side of the rectangular frame have large surface current distribution, which indicates that the lower side of the L-shaped branch and the lower side of the rectangular frame are main radiation units at a middle and low frequency band of 3.03 GHz-5.30 GHz. At 7.4 GHz, the lower side and the right side of the L-shaped branch have large surface current distribution, which indicates that the lower side and the right side of the L- shaped branch are main radiation units at a middle and high fre- quency band of 5.84 GHz-8.16 GHz. At 9.7 GHz, the lower side of the L-shaped branch has large surface current distribution, which indicates that the lower side of the L-shaped branch is a main ra- diation unit at a high frequency band of 9.39 GHz-10.11 GHz.
As shown in FIG. 3, the electric field generated by excita- tion forms four effective pass bands, which are 1.16 GHz-2.11 GHz, 3.03 GHz-5.46 GHz, 5.82 GHz-8.17 GHz, and 9.39-10.11 GHz respec- tively; and the first pass band is in the Beidou and GPS frequency bands, the second pass band is in the 5G frequency band, and the third pass band is in the WIFI 6E frequency band.
As shown in FIG. 4, an axial ratio is less than 3 dB at 1.19
GHz-2.11 GHz, 3.21 GHz-4.70 GHz and 5.79 GHz-6.21 GHz, which indi- cates a circular polarization feature.
As shown in FIG. 5, when the frequency is 1.5 GHz, plane E of the antenna is approximately circular in radiation, and a radia- tion direction is omnidirectional.
As shown in FIG. 6, when the frequency is 1.5 GHz, plane H is approximately circular, and a radiation direction is omnidirec- tional.
As shown in FIG. 7, when the frequency is 3.3 GHz, plane E of the antenna is approximately circular, and a radiation direction is omnidirectional.
As shown in FIG. 8, when the frequency is 3.3 GHz, plane H is approximately circular, and a radiation direction is omnidirec- tional.
As shown in FIG. 9, when the frequency is 6.5 GHz, plane E of the antenna is approximately circular, and a radiation direction is omnidirectional.
As shown in FIG. 10, when the frequency is 6.5 GHz, plane H is approximately circular, and a radiation direction is omnidirec- tional.
As shown in FIG. 11, when the frequency is 9.5 GHz, plane E of the antenna is approximately circular with some distortion, and a radiation direction is angularly limited.
As shown in FIG. 12, when the frequency is 9.5 GHz, plane H of the antenna is approximately circular with some distortion, and a radiation direction is angularly limited.
Analyzing from simulation results: 1. Below a reflection coefficient of -10dB, four pass bands of 1.16 GHz-2.11 GHz, 3.03 GHz-5.46 GHz, 5.82 GHz-8.17 GHz, 9.39
GHz-10.11 GHz are generated. The low-frequency pass band of 1.16
GHz-2.11 GHz of the antenna completely covers frequency band Bl (1561 +4 2.046 MHz) and frequency band B2 (1207 + 2.046 MHz) of
Beidou, and frequency band L1 (1575 + 10.23 MHz) and frequency band L2 (1227 + 10.23 MHz) of GPS. The middle-and-low-frequency pass band of 3.03 GHz-5.46 GHz of the antenna completely covers frequency band N77 (3.3 GHz-4.2 GHz) and frequency band N78 (3.3
GHz-3.8 GHz) of 5G, and may be used in the 5G frequency band of 3.2 GHz-3.5 GHz in China Telecom in reality. The high-frequency pass band of 5.82 GHz-8.17 GHz of the antenna completely covers the frequency band (5.925 GHz-7.125 GHz) of WIFI 6E. 2. When the frequency is 1.5 GHz, 3.3 GHz, 6.5 GHz and 9.5
GHz, plane E of the antenna is approximately circular in radia- tion, and plane H of the antenna is basically omnidirectional in radiation. The radiation direction is stable and is less influ- enced by frequency. When the frequency is increased, a gain direc- tion of the antenna is distorted, for example, at 9.5 GHz, alt- hough being approximately circular in radiation, plane E of the antenna has certain distortion.
The above embodiment is to be understood as merely illustra- tive of the present invention and not as limiting the scope of protection of the present invention. After reading the content of the present invention, those skilled may make various changes or modifications to the present invention, such equivalent changes and modifications likewise falling within the scope as defined by the claims of the present invention.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL2032457A NL2032457B1 (en) | 2022-07-12 | 2022-07-12 | Circularly polarized antenna working in beidou, gps and 5g frequency bands |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL2032457A NL2032457B1 (en) | 2022-07-12 | 2022-07-12 | Circularly polarized antenna working in beidou, gps and 5g frequency bands |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL2032457B1 true NL2032457B1 (en) | 2024-01-25 |
Family
ID=89621210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL2032457A NL2032457B1 (en) | 2022-07-12 | 2022-07-12 | Circularly polarized antenna working in beidou, gps and 5g frequency bands |
Country Status (1)
| Country | Link |
|---|---|
| NL (1) | NL2032457B1 (en) |
-
2022
- 2022-07-12 NL NL2032457A patent/NL2032457B1/en active
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