CN115249897A - Array antenna and PCB - Google Patents
Array antenna and PCB Download PDFInfo
- Publication number
- CN115249897A CN115249897A CN202110462053.5A CN202110462053A CN115249897A CN 115249897 A CN115249897 A CN 115249897A CN 202110462053 A CN202110462053 A CN 202110462053A CN 115249897 A CN115249897 A CN 115249897A
- Authority
- CN
- China
- Prior art keywords
- antenna
- main
- main feeder
- feeder line
- feed line
- 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
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
-
- 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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The application provides an array antenna and PCB board, array antenna includes: a main feed line; and a plurality of antenna elements arranged in pairs and at intervals on opposite sides of the main feed line; the antenna comprises a main feeder line and antenna units, wherein a matching branch section is arranged at one end of the main feeder line, a through hole is formed at the other end of the main feeder line, the antenna units are arranged between the matching branch section and the through hole, the distance between every two adjacent antenna units is a waveguide wavelength, the coupling gap between each antenna unit and the main feeder line is 0.1-2 mm, the antenna units are arranged in parallel to the main feeder line, and the length of each antenna unit in parallel to the main feeder line is one half of the waveguide wavelength. By the mode, the bandwidth of the array antenna is increased, and the side lobe of the array antenna is reduced.
Description
Technical Field
The invention relates to the technical field of microwave communication, in particular to an array antenna and a PCB (printed circuit board).
Background
The array antenna is an antenna system formed by arranging and combining a plurality of same antennas according to a certain rule. Compared with a single antenna, the array antenna effectively enhances the directivity of the antenna, improves the gain of the antenna, can realize beam scanning by changing the phase difference between adjacent antennas, enables the optimal transmitting direction to move along with a user, and ensures the quality of data transmission.
With the rapid development of wireless communication technology, the rapid increase of communication demand puts higher and higher demands on communication devices such as antennas at the front end of the system, for example: multi-band, multi-function, high gain, miniaturization, etc. Therefore, to cope with the increasing communication demand, a multiband common aperture antenna array has been developed. Antennas of different frequency bands in a common system are designed independently, and each frequency band occupies one radiation port surface, so that the antenna system is large in size and weight. The multi-band common-aperture antenna array integrates antennas with different frequency bands into the same radiation aperture, and ensures that each antenna can work independently, thereby effectively reducing the overall size and weight of the antenna, fully utilizing the aperture of the antenna, reducing the manufacturing cost and ensuring the richness of the contents of transmitting and receiving signals.
In the application of the millimeter wave MIMO array antenna, the series feeding mode is widely applied to the subarray due to the short feeding, path and low loss. In the prior art of common series feeding, the feed line is in direct contact with the antenna element.
Disclosure of Invention
The application provides an array antenna and PCB board to feeder and antenna element direct contact's problem among the solution prior art, and increased array antenna's bandwidth, reduced array antenna's side lobe.
In order to solve the above technical problem, the present application provides an array antenna, including: a main feeder line; and a plurality of antenna elements arranged in pairs and at intervals on opposite sides of the main feed line; one end of the main feeder line is provided with a matching branch section, the other end of the main feeder line is provided with a via hole, and the antenna unit is arranged between the matching branch section and the via hole; the distance between two adjacent antenna units is a waveguide wavelength, the coupling gap between each antenna unit and the main feeder is 0.1-2 mm, the antenna units are arranged in parallel to the main feeder, and the length of each antenna unit in parallel to the main feeder is one half of the waveguide wavelength.
And coupling gaps between the antenna units and the main feeder line on the same side are distributed in a U shape.
And coupling gaps between the antenna units positioned on two opposite sides of the main feeder line and the main feeder line are arranged identically.
And a feed point is further arranged on one side of the main feeder line close to the matching branch section so as to feed in an electromagnetic signal.
The matching branch section is arranged close to one end of the main feeder line fed with the electric signal so as to control the signal feeding amount.
The through hole is arranged far away from one end of the main feeder line fed with the electric signal, so that the main feeder line is connected with the ground.
The antenna unit and the main feeder line are made of the same material.
In order to solve the above technical problem, the present application further provides a PCB, where the PCB is provided with the array antenna in any of the above embodiments.
The array antenna is arranged on the same side of the PCB.
The beneficial effect of this application is: the antenna units are arranged on two sides of the main feeder line in pairs at intervals to be coupled with the main feeder line to form a coupling circuit, and the coupling amount is controlled by controlling the coupling gaps between the antenna units and the main feeder line to realize the amplitude distribution required by an antenna directional diagram. On the other hand, the through hole is formed at the tail end of the main feeder line, and the short circuit is realized through the grounding of the through hole, so that the resonance of the main feeder line and the antenna unit is increased, the bandwidth of the array antenna is widened, and the secondary lobe of the array antenna is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of an array antenna according to the present application;
fig. 2 is a schematic structural diagram of another embodiment of an array antenna according to the present application;
fig. 3 is a schematic structural diagram of an embodiment of a PCB board according to the present application.
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.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, the "plurality" typically includes at least two, but does not exclude the presence of at least one.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be understood that the terms "comprises," "comprising," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indication is changed accordingly.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of an array antenna according to the present application.
As shown in fig. 1, the array antenna includes: a main feed line 11, and a plurality of antenna elements 12 arranged in pairs and at intervals on both sides of the main feed line 11. The antenna element 12 is coupled to the main feeder 11 to form a coupling circuit.
One end of the main feeder line 11 is provided with a matching stub 111, the other end is provided with a via hole 112, and the plurality of antenna units 12 are disposed between the matching stub and the via hole.
The antenna elements 12 are arranged parallel to the main feeder 11, and the distance between two adjacent antenna elements 12 on the same side of the main feeder 11 is a waveguide wavelength, wherein the waveguide wavelength can be calculated according to the dielectric constant of the material and the electromagnetic signal introduced by the main feeder 11. The antenna elements 12 on opposite sides of the main feed line 11 are arranged in mirror image.
During the process of feeding electromagnetic signals from the feeding end of the main feeder 11 to the tail end for transmission, energy is partially fed into each antenna unit 12 by means of slot coupling. In the present embodiment, two adjacent antenna units 12 are spaced by one waveguide wavelength, so that each two adjacent antenna units 12 can realize in-phase superposition, thereby realizing in-phase superposition of all antenna units 12 in the same plane to enhance the coupling signal of the antenna unit. In the present embodiment, the length of each antenna element 12 is set to be one-half of one wavelength. The length of the antenna element 12 is set in relation to the coupling of electromagnetic signals, and by setting the length of the antenna element 12 to be one half of the wavelength of the electromagnetic signals transmitted by the main feeder 11, the antenna element 12 can be better coupled to the electromagnetic signals transmitted by the main feeder 11, and when the length of the antenna element 12 is less than or greater than one half of the waveguide wavelength, the coupling effect of the antenna element 12 is affected.
The spacing distance between the antenna units 12 and the main feeder 11 is called as a coupling slot, the setting of the coupling slot is closely related to the coupling amount of the antenna units, an electromagnetic signal is fed from the feed end of the main feeder 11, energy is partially fed into each antenna unit 12 in a slot coupling mode in the process of transmitting the electromagnetic signal to the tail end, the coupling amount is stronger when the coupling slot is smaller, the coupling amount is weaker when the coupling slot is larger, and the coupling amount presents the amplitude distribution of an antenna directional diagram.
In one embodiment, the coupling slots between two antenna elements 12 distributed on opposite sides of the main feed line 11 and the main feed line 11 are arranged in the same manner, and the coupling slots between two adjacent antenna elements 12 located on the same side of the main feed line 11 and the main feed line 11 are arranged in the different manner.
It should be noted that the directional pattern of the antenna includes many lobes, wherein the lobe with the largest radiation direction is called a main lobe, the other lobes are collectively called side lobes, and the lobe directly behind the main lobe is called a back lobe. Reducing the amplitude distribution of the side lobes is advantageous for providing the radiating capability of the array antenna.
In the present embodiment, the coupling amount is flexibly controlled by controlling the size of the coupling slot between the antenna element 12 and the main feeder 11, and the amplitude distribution required for the antenna pattern is realized. In this embodiment, all the antenna elements 22 are not connected to the main feed line 21, and the coupling gap between the antenna element 12 and the main feed line 11 may be as small as 0.1 mm and as large as 2 mm. The larger the coupling gap between the antenna element 22 and the main feeder 21 is, the smaller the coupling amount of the antenna element 22 is, and the weaker the radiation signal is. When the coupling gap between the antenna element 22 and the main feed line 21 exceeds 2 mm, the amount of coupling between the antenna element 22 and the main feed line 21 is almost zero.
In one embodiment, the coupling slots between the antenna elements 12 and the main feed line 11 on the same side are U-shaped. The coupling gaps near the middle are smaller, the coupling gaps at the two ends of the main feeder line 11 are larger, and in the process that the antenna units 12 are uniformly distributed to the two ends along the middle position of the main feeder line 11, the coupling gaps between the antenna units 12 and the main feeder line 11 are gradually increased. The coupling gap between the antenna unit 12 and the main feeder 11 is gradually increased from the middle to both sides, and an antenna directional pattern with conical amplitude distribution can be formed, that is, the amplitude distribution of the antenna positioned in the middle is small, and the amplitude distribution of the antenna positioned at both ends is large, so that low side lobes are realized. The smaller the amplitude distribution of the middle antenna is, the larger the amplitude distribution of the two ends antenna is, namely the larger the difference between the amplitude distribution of the middle antenna and the amplitude distribution of the two ends antenna is, the better the antenna directional diagram is, and the lower the side lobe is.
In one embodiment, the coupling gap between the antenna element 12 located at the middle of the main feed line 11 and the main feed line 11 is set to 0.1 mm, the coupling gap between the antenna element 12 located at the outermost side of the main feed line 11 and the main feed line 11 is set to 2 mm, and the coupling gaps between the antenna element 12 and the main feed line 11 gradually increase from the middle to both sides.
In the present embodiment, the antenna elements 12 are provided in plurality, so as to better radiate the electromagnetic signals transmitted by the main feeder 11, thereby setting the length of each antenna element 12 to one-half of one waveguide wavelength. Here, the length of the antenna element 12 refers to the length in parallel to the direction of the main feed line 11. The width of the antenna element 12 refers to its own length perpendicular to the main feed line direction. In this embodiment, the width of the antenna unit 12 is not set, and may be set according to actual production requirements. The number of the antenna elements 12 includes a plurality, and the antenna elements are arranged in pairs on both sides of the main feeder. The number of the antenna units 12 may be 4 pairs, 5 pairs or 6 pairs, and may be specifically set according to actual needs, and is not limited herein.
The matching branch sections 111 and the via holes 112 arranged on the main feeder line 11 are respectively positioned at two ends of the main feeder line 11. The matching branch section 111 is disposed near one end of the main feeder line 11 fed with the electrical signal, the via hole 112 is disposed far from one end of the main feeder line 11 fed with the electrical signal, and the antenna unit 12 is disposed between the matching branch section 111 and the via hole 112 and spaced from the main feeder line 11. The main feeder line 11 is further provided with a feeding point 113, the feeding point 113 is for introducing an electrical signal, and the matching branch node 111 is disposed near the feeding point 113 to control the signal feeding amount of the feeding point 113, so as to ensure that the electrical signal of the feeding point 113 can be transmitted to the greatest extent. The via holes 112 are also called metallized holes, and in the double-sided boards and the multilayer boards, in order to connect the printed wires between the layers, a common hole, i.e., a via hole, is drilled at the intersection of the wires to be connected in each layer. In this embodiment, the via hole 112 is disposed at the end of the main feed line 11, and the via hole 112 is grounded to realize a short circuit, so that the main feed line 11 forms a complete signal loop, and thus the main feed line 11 forms an individual antenna, and forms resonance or resonance with the antenna unit 12, thereby increasing a new resonance point, widening the bandwidth of the array antenna, and reducing the side lobe.
In this embodiment, the main feeder 11 and the antenna unit 12 are made of the same material, and may be a copper layer or a circuit pattern layer on a PCB, which is not limited herein. In another embodiment, the material of the main feed line 11 and the antenna element 12 may be set differently.
The beneficial effect of this embodiment is: the antenna units are arranged on two sides of the main feeder line in pairs at intervals to be coupled with the main feeder line to form a coupling circuit, and the coupling amount is controlled by controlling the size of a coupling gap between the antenna units and the main feeder line to realize amplitude distribution required by an antenna directional diagram. On the other hand, the through hole is formed at the tail end of the main feeder line, and the short circuit is realized through the grounding of the through hole, so that the resonance of the main feeder line and the antenna unit is increased, the bandwidth of the array antenna is widened, and the secondary lobe of the array antenna is reduced.
Referring to fig. 2, fig. 2 is a schematic structural diagram of another embodiment of the array antenna of the present application.
As shown in fig. 2, the array wire includes: a main feed line 21, and an antenna element 22 spaced from the main feed line 21. The antenna element 22 is coupled to the main feed line 21 to form a coupling circuit.
The antenna elements 22 include a plurality of antenna elements 22, and the plurality of antenna elements 22 are distributed in pairs on both sides of the main feed line 21. In other embodiments, the antenna elements 22 may not be arranged in pairs, that is, the position arrangement of the antenna elements 22 on both sides of the main feed line 21 may be different. Generally, the distribution of the antenna elements 22 and the main feeder 21 affects the amplitude distribution of the antenna pattern, and the amplitude distribution required for the millimeter wave MIMO system can be realized by arranging the antenna elements 22 located on both sides of the main feeder 21 in pairs.
In the present embodiment, the spacing between two adjacent antenna elements 22 is one waveguide wavelength, which can be calculated. In the present embodiment, two adjacent antenna units 22 are spaced by one waveguide wavelength, so that the antenna units 22 can realize in-phase superposition, and the coupled signal is enhanced.
In one embodiment, the coupling slots between two antenna elements 22 oppositely distributed on two sides of the main feed line 21 and the main feed line 21 are arranged the same, and the coupling slots between two adjacent antenna elements 22 on the same side and the main feed line 21 are also arranged the same. I.e. the antenna elements 22 on the same side are in the same horizontal line as the main feed line 21. Specifically, the coupling gap between the antenna element 22 and the main feed line 21 is set between 0.1 mm and 2 mm. All the antenna elements 22 are not connected with the main feed line 21, and the coupling gap between the antenna elements 22 and the main feed line 21 can be set to 0.1 mm at minimum and 2 mm at maximum. The larger the coupling gap between the antenna element 22 and the main feeder 21 is, the smaller the coupling amount of the antenna element 22 is, and the weaker the radiation signal is. When the coupling gap between the antenna element 22 and the main feed line 21 exceeds 2 mm, the amount of coupling between the antenna element 22 and the main feed line 21 is almost zero. In the present embodiment, the coupling slots between each antenna element 22 and the main feed line 21 are arranged identically, the coupling amount of each antenna element 22 is identical, and the amplitude distribution of the antenna pattern is uniform.
In the present embodiment, the material of the antenna unit 22 is a conductive metal material, and may be a metal sheet, which is not limited herein.
The main feed line 21 is further provided with a matching branch section 211 and a metalized hole 212, and the matching branch section 211 and the metalized hole 212 are respectively located at two ends of the main feed line 21. The matching branch sections 211 are arranged near one end of the main feed line 21 where the electric signal is fed, the metalized holes 212 are arranged far from one end of the main feed line 21 where the electric signal is fed, and the antenna units 22 are uniformly distributed on two sides of the main feed line 21 between the matching branch sections 211 and the metalized holes 212 and are arranged at intervals with the main feed line 21. The main feeder 21 is further provided with a feeder point 213, the feeder point 213 is for introducing an electrical signal, and the matching branch node 211 is disposed near the feeder point 213 to control the signal feeding amount of the feeder point 213 and ensure that the electrical signal of the feeder point 213 can be transmitted to the greatest extent. The metallized holes 212 are also referred to as vias. In the present embodiment, the metalized hole 212 is provided at the end of the main feed line 21, and the metalized hole 212 is grounded to realize a short circuit, so that a new resonance point is added, and the bandwidth of the array antenna is widened. In this embodiment, the main feed line 21 is made of a material capable of introducing an electrical signal, and may be a metal line or a metallization pattern, which is not limited herein.
The beneficial effect of this embodiment is: the antenna units are arranged on two sides of the main feeder line in pairs at intervals to be coupled with the main feeder line to form a coupling circuit, and the coupling amount is controlled by controlling the size of a coupling gap between the antenna units and the main feeder line to realize amplitude distribution required by an antenna directional diagram. On the other hand, the tail end of the main feeder line is also provided with a via hole, and the short circuit is realized by grounding of the via hole, so that a new resonance point is added, the bandwidth is widened, and the side lobe is reduced.
Fig. 3 is a schematic structural diagram of a PCB according to an embodiment of the present disclosure.
As shown in fig. 3, a main feed line 31 and a plurality of antenna elements 32 which are located on both sides of the main feed line 31 in pairs and spaced apart from the main feed line 31 are provided on the PCB board 1, and the antenna elements 32 are coupled to the main feed line 31 to form a coupling circuit.
In the present embodiment, the main feed line 31 and the antenna element 32 are located on the same plane of the PCB board 1. The main feed line 31 and the antenna element 32 may be a metallization pattern or a pattern on the PCB board 1, or may be a conductive copper layer on the PCB board 1, which is not limited herein. The width settings of the main feed line 31 and the antenna element 32 may be the same or different, and are not limited herein.
In the present embodiment, the antenna elements 32 include a plurality of elements, and ideally, the length of each antenna element 32 is one half of one waveguide wavelength. The width of each antenna unit 32 is set to be the same, but in an actual application process, the length and the width of each antenna unit 32 may be different, and may be specifically set according to actual requirements. The number of the antenna elements 32 can also be set according to actual requirements.
In the present embodiment, the distance between two adjacent antenna elements 32 is one waveguide wavelength. In the present embodiment, the waveguide wavelength is calculated from the dielectric constant of the PCB board 1 and the electromagnetic signal introduced by the main feeder line 31.
The coupling slots between two adjacent antenna elements 32 on the same side and the main feed line 31 are arranged differently, and the coupling slots between two antenna elements 32 on opposite sides of the main feed line 31 and the main feed line 31 are arranged identically.
Specifically, the coupling gaps between the antenna elements 32 and the main feeder 31 on the same side are distributed in a U shape, that is, the middle coupling gap is small, the coupling gaps on both sides are large, and the coupling gaps are gradually increased. In the present embodiment, the signal coupling amount between the antenna element 32 and the main feed line 31 can be controlled by controlling the size of the coupling slot of the antenna element 32 and the main feed line 31, so as to achieve the amplitude distribution required by the antenna pattern. The coupling gap between the antenna element 32 and the main feed line 31 can be up to 0.1 mm at minimum and 2 mm at maximum.
The two ends of the main feeder line 31 are further provided with a matching branch node 311 and a via hole 312, wherein the matching branch node 311 is arranged near one end of the main feeder line 31 for feeding the electric signal to control the feeding amount of the electric signal, the via hole 312 is arranged far from one end of the main feeder line 31 for feeding the electric signal, and the via hole 312 is grounded to realize short circuit, so that a new resonance point is added, and the bandwidth of the array antenna arranged on the PCB board 1 is widened. The main feed line 31 is further provided with a feed point 313 on the side close to the matching stub 311 to introduce an electromagnetic signal.
The beneficial effect of this embodiment is: the main feeder is arranged on the PCB, the antenna units are symmetrically arranged on two sides of the main feeder at intervals, the antenna units are coupled with the main feeder to form a coupling circuit, and the coupling amount can be controlled by controlling the size of a coupling gap between the antenna units and the main feeder, so that the amplitude distribution required by an antenna directional diagram is realized, the microwave communication of the PCB is realized, the application field of the PCB is expanded, and the PCB can be widely applied to radars and communication systems of a millimeter wave MIMO system.
The above description is only an embodiment of the present application, and not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (10)
1. An array antenna, comprising:
a main feed line; and a plurality of antenna elements arranged in pairs and at intervals on opposite sides of the main feed line;
one end of the main feeder line is provided with a matching branch section, the other end of the main feeder line is provided with a via hole, and the antenna unit is arranged between the matching branch section and the via hole;
the distance between two adjacent antenna units is a waveguide wavelength, the coupling gap between each antenna unit and the corresponding main feeder is 0.1-2 mm, the antenna units are arranged in parallel to the main feeders, and the length of each antenna unit parallel to the main feeders is half of the waveguide wavelength.
2. Array antenna according to claim 1,
the coupling gaps between the antenna units and the main feeder line respectively have the following distribution: gradually increase from the middle of the plurality of antenna units to two sides along the main feed line.
3. Array antenna according to claim 1,
the coupling gaps between the antenna units on the two opposite sides of the main feeder line and the main feeder line are arranged identically.
4. Array antenna according to claim 1,
the antenna units are not directly connected with the main feeder.
5. Array antenna according to claim 1,
and a feed point is further arranged on one side of the main feed line close to the matching branch section so as to feed in an electromagnetic signal.
6. Array antenna according to claim 5,
the matching branch knot is arranged close to one end of the main feeder line for feeding in the electric signal so as to control the signal feeding amount.
7. Array antenna according to claim 6,
the via hole is arranged far away from one end of the main feeder line fed with the electric signal, so that the main feeder line is connected with the ground.
8. Array antenna according to claims 1 to 7,
the antenna unit and the main feeder are made of the same material.
9. A PCB board provided with the array antenna according to any one of claims 1 to 8.
10. The PCB board of claim 9, wherein the array antennas are disposed on the same side of the PCB board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110462053.5A CN115249897A (en) | 2021-04-27 | 2021-04-27 | Array antenna and PCB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110462053.5A CN115249897A (en) | 2021-04-27 | 2021-04-27 | Array antenna and PCB |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115249897A true CN115249897A (en) | 2022-10-28 |
Family
ID=83696997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110462053.5A Pending CN115249897A (en) | 2021-04-27 | 2021-04-27 | Array antenna and PCB |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115249897A (en) |
-
2021
- 2021-04-27 CN CN202110462053.5A patent/CN115249897A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211428346U (en) | Antenna module and electronic equipment | |
| US10910700B2 (en) | Omnidirectional antenna for mobile communication service | |
| EP1748516B1 (en) | Plate board type mimo array antenna including isolation element | |
| JP5548779B2 (en) | Antenna device | |
| US6593891B2 (en) | Antenna apparatus having cross-shaped slot | |
| EP2919323A1 (en) | Array antenna | |
| JP2006319767A (en) | Flat antenna | |
| KR20170067887A (en) | Stripline coupled antenna with periodic slots for wireless electronic devices | |
| CA2172834A1 (en) | Multipatch antenna | |
| EP0700115B1 (en) | Stripline antenna | |
| JP4139837B2 (en) | Dual frequency dipole antenna device | |
| JP3924267B2 (en) | Dual frequency dipole antenna device | |
| WO2022133922A1 (en) | Multi-frequency antenna and communication device | |
| US7286086B2 (en) | Gain-adjustable antenna | |
| CN113540792B (en) | Antenna structure, terminal and terminal processing method | |
| CN115249897A (en) | Array antenna and PCB | |
| EP3972057A1 (en) | Dual polarized antenna using shift series feed | |
| WO2002065581A1 (en) | A layered micro strip patch antenna | |
| KR102039398B1 (en) | Integrated Antenna Operating in Multiple Frequency Bands | |
| KR20220159708A (en) | Dual band multi-beam antenna apparauts with frequency divider/combiner and multi-beam antenna for 5g mobile communication | |
| US5877729A (en) | Wide-beam high gain base station communications antenna | |
| CN112448174A (en) | Antenna system and terminal equipment | |
| CN215896702U (en) | Double-frequency double-fed antenna and communication equipment | |
| US20220376397A1 (en) | Antenna device | |
| JP3047896B2 (en) | Helical antenna and method of manufacturing the same |
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 |