CN112803175A - Multifunctional vehicle-mounted combined antenna and vehicle - Google Patents
Multifunctional vehicle-mounted combined antenna and vehicle Download PDFInfo
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- CN112803175A CN112803175A CN202110145874.6A CN202110145874A CN112803175A CN 112803175 A CN112803175 A CN 112803175A CN 202110145874 A CN202110145874 A CN 202110145874A CN 112803175 A CN112803175 A CN 112803175A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
- H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
- H01Q1/3291—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle mounted in or on other locations inside the vehicle or vehicle body
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
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- 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
- H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
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Abstract
The invention discloses a multifunctional vehicle-mounted combined antenna and a vehicle, which comprise a medium substrate, wherein a navigation antenna is arranged in the middle area of the medium substrate, an LTE-MIMO antenna, a V2X-MIMO antenna, a WIFI main antenna and a WIFI slave antenna are also arranged on the medium substrate, the LTE-MIMO antenna comprises two LTE antennas, and the V2X-MIMO antenna comprises a main V2X antenna and a slave V2X antenna; the navigation antenna, two LTE antennas, main V2X antenna, follow V2X antenna, WIFI main antenna, WIFI from the antenna respectively through the coaxial cable feed. According to the invention, the LTE-MIMO antenna, the V2X-MIMO antenna, the WIFI main antenna, the WIFI slave antenna and the navigation antenna are integrated on the dielectric substrate, so that multiple frequency bands such as 2G/3G/4G/5G can work simultaneously in a limited space, and the intelligent development trend of vehicles is adapted.
Description
Technical Field
The invention relates to the technical field of intelligent transportation equipment, in particular to a multifunctional vehicle-mounted combined antenna and a vehicle.
Background
The development of vehicle antennas has mainly gone through two stages: conventional vehicle mounted AM/FM antennas and existing shark fin vehicle mounted antennas. At present, automobiles are developing towards intelligent terminals, and are not simply driving tools. More and more antennas are required to be integrated in the vehicle to acquire information such as vehicles, roads, communication, positioning, environment perception, information processing and the like.
The length of a traditional vehicle-mounted AM/FM antenna is generally one-fourth of the working wavelength or one-half of the working wavelength, omnidirectional radiation can be realized on a horizontal plane, but the antenna is overlarge due to a very low working frequency range, so that the attractiveness of an automobile is seriously influenced; the shark fin type antenna can be integrated with a plurality of antennas, but the shark fin type antenna is installed above a vehicle roof, but the shark fin type antenna brings huge challenges to production and processing technology, the problem of wind resistance in the running process of a vehicle is considered, the size of the shark fin type antenna is limited, mutual interference of different antennas is caused, and therefore too many antennas cannot be integrated, meanwhile, the shark fin type antenna is exposed outside the vehicle and is easy to be directly irradiated by sunlight, so that the internal temperature is too high, the performance of the antenna is influenced, and therefore the shark fin type antenna cannot adapt to the development trend of automobile intellectualization.
Disclosure of Invention
In order to solve the problems, the invention provides a multifunctional vehicle-mounted combined antenna and a vehicle, which can realize concealed installation while integrating a plurality of antennas and adapt to the development trend of automobiles.
In order to achieve the purpose, the technical scheme adopted by the invention comprises the following steps: the multifunctional vehicle-mounted combined antenna comprises a dielectric substrate, wherein a navigation antenna is arranged in the middle area of the dielectric substrate, an LTE-MIMO antenna, a V2X-MIMO antenna, a WIFI main antenna and a WIFI slave antenna are further arranged on the dielectric substrate, the LTE-MIMO antenna comprises two LTE antennas, and the V2X-MIMO antenna comprises a main V2X antenna and a slave V2X antenna; two the LTE antenna sets up respectively in navigation antenna's both sides, and main V2X antenna, follow V2X antenna and set up respectively in navigation antenna's both sides, and WIFI main antenna, WIFI are followed the antenna and are set up respectively in navigation antenna's both sides, navigation antenna, two LTE antenna, main V2X antenna, follow V2X antenna, WIFI main antenna, WIFI are followed the antenna and are passed through coaxial cable feed respectively.
As a preferred technical scheme of the invention: the LTE-MIMO antenna comprises two identical LTE antennas, and the two LTE antennas are respectively positioned at two ends of the medium substrate.
As a preferred technical scheme of the invention: the LTE antenna comprises a radiation unit, wherein the radiation unit comprises a feed branch and a grounding branch, and the feed branch comprises a long branch, a short branch and a patch coupled with the short branch; the resonance modes of the long branch and the grounding branch cover the low-frequency band 698-960MHz together, and the resonance modes of the short branch and the patch cover the high-frequency band 1710-2690MHz together.
As a preferred technical scheme of the invention: the radiation unit is etched on the front surface of the medium substrate, and the patch is rectangular; the feed branch is grounded through the metal through hole.
As a preferred technical scheme of the invention: the V2X-MIMO antenna comprises a same main V2X antenna and a same auxiliary V2X antenna, and the main V2X antenna and the auxiliary V2X antenna are respectively arranged on two opposite diagonal side areas of the dielectric substrate.
As a preferred technical scheme of the invention: the main V2X antenna and the auxiliary V2X antenna are inverted L-shaped metal oscillators, and the opening directions of the inverted L-shaped metal oscillators face to the end part of the dielectric substrate.
As a preferred technical scheme of the invention: and the inverted L-shaped metal vibrator is provided with a stub line.
As a preferred technical scheme of the invention: the WIFI main antenna comprises a first radiation unit, the first radiation unit comprises a first feeding branch and a first grounding branch, and the first feeding branch is in a resonant mode covering the low-frequency band 2400-2484 MHz; the first grounding branch node resonance mode covers a high-frequency band of 5150 and 5850 MHz; the first feed branch is grounded through the metal through hole.
As a preferred technical scheme of the invention: the WIFI slave antenna comprises a PIFA antenna and a transmission line, and an L-shaped slot is arranged above the PIFA antenna; the PIFA antenna is electrically connected with the coaxial cable through a transmission line.
As a preferred technical scheme of the invention: irregular gaps are formed in the dielectric substrate, and the transmission lines are arranged in the gaps.
As a preferred technical scheme of the invention: the navigation antenna comprises a single-layer ceramic structure, wherein a radiation patch is arranged above the single-layer ceramic structure and is fed through a feed probe.
As a preferred technical scheme of the invention: and a metal shielding cover is arranged at the back of the navigation antenna.
The embodiment of the present invention further provides a vehicle, including a vehicle body, further including: the multifunctional vehicle-mounted combined antenna is described above.
Compared with the prior art, the multifunctional vehicle-mounted combined antenna and the vehicle provided by the invention at least have the following beneficial effects:
(1) by integrating the LTE-MIMO antenna, the V2X-MIMO antenna, the WIFI master antenna, the WIFI slave antenna and the navigation antenna on the dielectric substrate, multiple frequency bands such as 2G/3G/4G/5G can work simultaneously in a limited space, and therefore the intelligent development trend of vehicles is adapted.
(2) The dielectric substrate can be installed in the vehicle, and is particularly suitable for being installed in a stand column of the vehicle, so that the problem that the shark fin type antenna is limited in size and cannot be provided with more antennas due to the problem of wind resistance can be avoided.
(3) The LTE antenna adopts a planar printing monopole antenna form, avoids the problems of easy deformation, difficult welding and the like in the processing production of a PIFA, IFA and other three-dimensional structure antenna forms, and has the advantages of easy production, controllable cost and the like.
(4) The WIFI slave antenna is provided with an L-shaped slot so that the working bandwidth can be effectively expanded; the transmission line is arranged on the dielectric substrate in an etching mode, so that the subsequent processing and production process is facilitated. The dielectric substrate is provided with irregular gaps for arranging transmission lines. Under the condition of limited size, the isolation is improved, the influence caused by multipath effect is reduced, and the efficiency of the WIFI slave antenna is effectively improved, so that the communication speed is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a simulation diagram of S-parameters of an LTE-MIMO antenna according to the present invention.
FIG. 3 is a simulation diagram of S parameters of V2X-MIMO antenna according to the present invention.
Fig. 4 is a simulation and actual mapping diagram of S parameters of the WIFI master and slave antennas.
FIG. 5 is a simulation diagram of S-parameters of the navigation antenna of the present invention.
In fig. 1, a navigation antenna, 2, an LTE antenna, 3, a master V2X antenna, 4, a slave V2X antenna, 5, a WIFI master antenna, 6, a WIFI slave antenna, 7, a coaxial cable, 8, a dielectric substrate, 9, a feeding branch, 10, a grounding branch, 11, a long branch, 12, a short branch, 13, a patch, 14, an inverted "L" shaped metal oscillator, 15, a short stub, 16, a first feeding branch, 17, a first grounding branch, 18, a PIFA antenna, 19, a transmission line, 20, an "L" shaped slot, 21, a slot, 22, a single-layer ceramic structure, 23, and a radiating patch.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described in detail below with reference to examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, an embodiment of the present invention provides a multifunctional vehicle-mounted combined antenna, which includes a dielectric substrate 8, a navigation antenna 1 is disposed in the middle of the dielectric substrate 8, and an LTE-MIMO antenna, a V2X-MIMO antenna, a WIFI master antenna 5, a WIFI slave antenna 6, and the navigation antenna 1 are further disposed on the dielectric substrate 8; the LTE-MIMO antenna comprises two LTE antennas 2, the V2X-MIMO antenna comprises a master V2X antenna 3 and a slave V2X antenna 4; the two LTE antennas 2, the main V2X antenna 3, the auxiliary V2X antenna 4, the WIFI main antenna 5 and the WIFI auxiliary antenna 6 are respectively arranged on two sides of the navigation antenna 1; navigation antenna 1, two LTE antennas 2, main V2X antenna 3, from V2X antenna 4, WIFI main antenna 5, WIFI from antenna 6 respectively through coaxial cable 7 feed. The dielectric substrate 8 is integrated with a plurality of groups of antennas, so that the shark fin type antenna is convenient to mount and can be mounted at a hidden position in a vehicle, and the problem that the shark fin type antenna is limited in size and cannot be integrated with more antennas due to the fact that the shark fin type antenna is mounted on a vehicle roof is solved. The PCB can be selected as the dielectric substrate 8, FR4 is preferably selected as the substrate, the coaxial cables 7 connected with the navigation antenna 1, the two LTE antennas 2, the main V2X antenna 3, the auxiliary V2X antenna 4, the WIFI main antenna 5 and the WIFI auxiliary antenna 6 are flexible cables, and an SMA joint is adopted to connect subsequent radio frequency equipment; the outgoing line position of the coaxial cable 7 is selected to be located at the position of the dielectric substrate 8 according to actual conditions, the coaxial cables of the LTE-MIMO antenna, the V2X-MIMO antenna, the WIFI main antenna 5 and the WIFI slave antenna 6 are uniformly arranged at two sides of the dielectric substrate 8 except the coaxial cable of the navigation antenna 1 in the invention, that is, 3 coaxial cables are respectively arranged at two sides of the dielectric substrate 8, so that the isolation between two antennas in each antenna combination (two LTE antenna combinations, a main V2X antenna and a slave V2X antenna combination, a WIFI main antenna and a WIFI slave antenna combination) in the same working frequency band is favorably improved, and in consideration of actual processing technology, the coaxial cables are respectively arranged at two sides of the dielectric substrate 8 and have structural stability. The length of the dielectric substrate 8 is preferably 150 +/-5 mm, the width of the dielectric substrate 8 is 70 +/-5 mm, the dielectric substrate 8 integrated with various antennas can be installed inside a vehicle while meeting the use of normal application functions of the vehicle, for example, the dielectric substrate is integrated or absorbed inside a column of the vehicle, such as an a column, a B column or a C column, and particularly, the multifunctional vehicle-mounted combined antenna with the dielectric substrate is preferably integrated in the B column of the vehicle, so that the problem that the shark fin type antenna is limited in size and cannot be provided with more antennas due to the problem of wind resistance can be avoided.
The LTE-MIMO antenna is preferably connected in an MIMO mode so as to reduce interference between different antennas, and comprises two identical LTE antennas 2, wherein the two LTE antennas 2 are planar printed monopole antennas and are respectively positioned at two ends of a dielectric substrate 8, and preferably, the two identical LTE antennas 2 are arranged in two opposite side areas of the dielectric substrate 8, so that the requirement of isolation is met. In the prior art, most of the LTE antenna 2 is in a three-dimensional structure antenna form such as PIFA and IFA, and is easy to deform and difficult to weld during processing and production, in the invention, the LTE antenna 2 can be arranged on a dielectric substrate 8 in a planar printing mode, preferably, the LTE antenna 2 is arranged on the dielectric substrate 8 in an etching mode, the LTE antenna 2 comprises a radiation unit, and the radiation unit comprises a feed branch 9 and a grounding branch 10; the feed stub 9 is grounded through a metal via. The feed branch 9 comprises a long branch 11, a short branch 12 and a patch 13 coupled with the short branch 12; the resonant modes of the long branch 11 and the grounding branch 10 cover the low-frequency band 698-960MHz together, the resonant modes of the short branch 12 and the patch 13 cover the high-frequency band 1710-2690MHz together, the shape of the patch 13 is preferably rectangular, and the short branch 12 and the rectangular patch 13 form a resonant point in the high-frequency band through coupling, so that the LTE antenna 2 can cover the high-frequency band. As shown in FIG. 2, it can be known through software simulation that-6 dB impedance bandwidth of the LTE-MIMO antenna can cover 698-960MHz and 1710-2690MHz frequency bands, respectively.
V2X is a communication mode for exchanging information between vehicle and outside, i.e. V2X-MIMO antenna is used for receiving or transmitting information between vehicle and outside, and mutual interference between antennas can be reduced by adopting MIMO mode connection. The V2X-MIMO antenna comprises a same main V2X antenna 3 and a same auxiliary V2X antenna 4, wherein the main V2X antenna 3 and the auxiliary V2X antenna 4 are respectively arranged on two opposite diagonal sides of the navigation antenna 1, the main V2X antenna 3 and the auxiliary V2X antenna 4 are arranged on two opposite diagonal sides of the navigation antenna 1 in a fixed welding mode, in order to meet the gain requirement of the omnidirectional antenna, the main V2X antenna 3 and the auxiliary V2X antenna 4 are preferably inverted L-shaped metal oscillators 14, the opening direction of the inverted L-shaped metal oscillators 14 faces towards the LTE-MIMO antenna, namely the main V2X antenna 3 and the auxiliary V2X antenna 4 respectively face towards the end parts of the adjacent dielectric substrate 8. The inverted L-shaped metal vibrator 14 is provided with a stub 15. The provision of the stub 15 can lengthen the current path, thereby reducing the antenna profile height. As shown in fig. 3, it can be known from software simulation that the impedance bandwidth of the V2X-MIMO antenna at-10 dB can cover a frequency band range of 5900-5925MHz, and refer to white paper for internet of vehicles (C-V2X), published by china communication institute in 2019, where evolution and development planning of C-V2X is further described, and the V2X-MIMO antenna of the present invention can meet the current standard.
The WIFI master antenna 5 and the WIFI slave antenna 6 are respectively located at two ends of the navigation antenna 1, the WIFI master antenna 5 is a monopole antenna and comprises a first radiation unit, the first radiation unit comprises a first feed branch 16 and a first grounding branch 17, and the first feed branch 16 is etched on the surface of the dielectric substrate 8; the first feed branch section 16 covers the low-frequency band 2400-; the first feed limb 16 is connected to ground by a metal via. The WIFI main antenna 5 adopts a monopole antenna, and working wavelengths at high and low frequency center frequency points of the WIFI main antenna are obtained according to a monopole calculation formula. The WIFI slave antenna 6 comprises a PIFA antenna 18 and a transmission line 19, the PIFA is in a three-dimensional form, the height of the PIFA is preferably 5mm, an L-shaped slot 20 is arranged above the PIFA antenna 18, and the L-shaped slot 20 can effectively expand the working bandwidth; the PIFA antenna 18 is electrically connected to the coaxial cable 7 by a transmission line 19. The transmission line 19 is arranged on the dielectric substrate 8 in an etching mode, so that the subsequent processing and production process is facilitated, and the input impedance is about 50 omega; the medium substrate 8 is provided with the irregular gap 21, the transmission line 19 is arranged in the gap 21, the irregular gap 21 improves isolation under the condition of limited size, influences caused by multipath effects are reduced, efficiency of the WIFI slave antenna 6 is effectively improved, and accordingly communication speed is improved. As shown in fig. 4, it can be known from the results of software simulation and actual measurement that-10 dB impedance bandwidths of the WIFI master antenna and the WIFI slave antenna can respectively cover 2400-2484MHz frequency bands and 5150-5850MHz frequency bands.
In order to reduce the overall cross-sectional height of the combined antenna, the navigation antenna 1 preferably comprises a single-layer ceramic structure 22, the volume of the single-layer ceramic structure 22 preferably being 40mm × 40mm × 5 mm; a radiation patch 23 is arranged above the single-layer ceramic structure 22, and the radiation patch 23 is fed by a feed probe. The feed probe is preferably a metal probe, and in order to avoid the influence of other antennas on the navigation antenna 1, a metal shielding cover is preferably arranged on the back of the navigation antenna 1. Since the phase center of the navigation antenna 1 is greatly affected by the surrounding ground, in the present invention, the navigation antenna 1 is preferably placed at the geometric center, and the surrounding ground environment is homogenized as much as possible, and the radiation patch 23 is preferably in the form of a microstrip antenna, and the size of the microstrip line is calculated according to the operating wavelength, that is, the size of the microstrip line can be calculated according to the central frequency in the operating frequency band. As shown in FIG. 5, the-10 dB impedance bandwidth of the navigation antenna can cover L1, BEIDOU, GLONASS, etc. frequency bands obtained by software simulation.
According to the invention, the LTE-MIMO antenna, the V2X-MIMO antenna, the WIFI master antenna 5, the WIFI slave antenna 6 and the navigation antenna 1 are integrated on the dielectric substrate 8, and multiple frequency bands such as 2G/3G/4G/5G can be simultaneously operated in a limited space.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.
Claims (12)
1. The utility model provides a multi-function vehicle carries combination antenna, includes dielectric substrate, its characterized in that: a navigation antenna is arranged in the middle area of the dielectric substrate, an LTE-MIMO antenna, a V2X-MIMO antenna, a WIFI main antenna and a WIFI slave antenna are further arranged on the dielectric substrate, the LTE-MIMO antenna comprises two LTE antennas, and the V2X-MIMO antenna comprises a main V2X antenna and a slave V2X antenna; two the LTE antenna sets up respectively in navigation antenna's both sides, and main V2X antenna, follow V2X antenna and set up respectively in navigation antenna's both sides, and WIFI main antenna, WIFI are followed the antenna and are set up respectively in navigation antenna's both sides, navigation antenna, two LTE antenna, main V2X antenna, follow V2X antenna, WIFI main antenna, WIFI are followed the antenna and are passed through coaxial cable feed respectively.
2. The multifunctional vehicle-mounted combined antenna according to claim 1, wherein: the LTE-MIMO antenna comprises two identical LTE antennas, and the two LTE antennas are respectively positioned at two ends of the medium substrate.
3. The multifunctional vehicle-mounted combined antenna according to claim 2, wherein: the LTE antenna comprises a radiation unit, wherein the radiation unit comprises a feed branch and a grounding branch, and the feed branch comprises a long branch, a short branch and a patch coupled with the short branch; the resonance modes of the long branch and the grounding branch cover the low-frequency band 698-960MHz together, and the resonance modes of the short branch and the patch cover the high-frequency band 1710-2690MHz together.
4. The multifunctional vehicle-mounted combined antenna according to claim 3, wherein: the radiation unit is etched on the front surface of the medium substrate, and the patch is rectangular; the feed branch is grounded through the metal through hole.
5. The multifunctional vehicle-mounted combined antenna according to claim 1, wherein: the V2X-MIMO antenna comprises a same main V2X antenna and a same auxiliary V2X antenna, and the main V2X antenna and the auxiliary V2X antenna are respectively arranged on two opposite diagonal side areas of the dielectric substrate.
6. The multifunctional vehicle-mounted combined antenna according to claim 5, wherein: the main V2X antenna and the auxiliary V2X antenna are inverted L-shaped metal oscillators, and the opening directions of the inverted L-shaped metal oscillators face to the end part of the dielectric substrate.
7. The multifunctional vehicle-mounted combined antenna according to claim 6, wherein: and the inverted L-shaped metal vibrator is provided with a stub line.
8. The multifunctional vehicle-mounted combined antenna according to claim 1, wherein: the WIFI main antenna comprises a first radiation unit, the first radiation unit comprises a first feeding branch and a first grounding branch, the first feeding branch is in a resonance mode covering the low-frequency band 2400-5884 MHz, and the first grounding branch is in a resonance mode covering the high-frequency band 5150-5850 MHz; the first feed branch is grounded through the metal through hole.
9. The multifunctional vehicle-mounted combined antenna according to claim 1, wherein: the WIFI slave antenna comprises a PIFA antenna and a transmission line, and an L-shaped slot is arranged above the PIFA antenna; the PIFA antenna is electrically connected with the coaxial cable through a transmission line.
10. The multifunctional vehicle-mounted combined antenna according to claim 9, wherein: irregular gaps are formed in the dielectric substrate, and the transmission lines are arranged in the gaps.
11. The multifunctional vehicle-mounted combined antenna according to claim 1, wherein: the navigation antenna comprises a single-layer ceramic structure, wherein a radiation patch is arranged above the single-layer ceramic structure and is fed through a feed probe.
12. A vehicle comprising a vehicle body, characterized in that: a multi-function vehicular combination antenna comprising any one of claims 1-11.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110145874.6A CN112803175A (en) | 2021-02-03 | 2021-02-03 | Multifunctional vehicle-mounted combined antenna and vehicle |
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| CN202110145874.6A CN112803175A (en) | 2021-02-03 | 2021-02-03 | Multifunctional vehicle-mounted combined antenna and vehicle |
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| CN112803175A true CN112803175A (en) | 2021-05-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114498086A (en) * | 2022-02-21 | 2022-05-13 | 深圳市晟达通讯设备有限公司 | Four-in-one antenna |
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