CN117977216A - Common-caliber millimeter wave lens antenna - Google Patents
Common-caliber millimeter wave lens antenna Download PDFInfo
- Publication number
- CN117977216A CN117977216A CN202311801227.1A CN202311801227A CN117977216A CN 117977216 A CN117977216 A CN 117977216A CN 202311801227 A CN202311801227 A CN 202311801227A CN 117977216 A CN117977216 A CN 117977216A
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- antenna
- chip
- common
- lens
- caliber
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- 239000002184 metal Substances 0.000 claims abstract description 26
- 229910052751 metal Inorganic materials 0.000 claims abstract description 26
- 239000011093 chipboard Substances 0.000 claims abstract description 12
- 230000005855 radiation Effects 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Abstract
The invention discloses a common-caliber millimeter wave lens antenna, which comprises: dielectric lens, metal wall and chip board; wherein the metal wall is arranged at the lower part of the dielectric lens; the chip plate is arranged inside the metal wall, and the center point of the chip plate is coincided with the focus of the dielectric lens. The invention reduces the antenna caliber, improves the gain of the antenna and narrows the antenna beam.
Description
Technical Field
The invention belongs to the technical field of antennas, and particularly relates to a common-caliber millimeter wave lens antenna.
Background
Antennas are a key component in the field of modern communication technology, and face miniaturization and integration challenges. The shared-aperture array antenna can greatly reduce the occupied area of the antenna, and is widely applied in various fields. However, the mutual constraint of the requirements of high gain and narrow beam of the antenna and the limitation of the caliber of the antenna is still a main factor influencing the performance of the antenna, so that the negative effect is that the high gain and narrow beam of the transmitting antenna and the receiving antenna cannot be realized in the application scene with limited volume.
Disclosure of Invention
The invention solves the technical problems that: the common-caliber millimeter wave lens antenna is provided, the caliber of the antenna is reduced, and the gain of the antenna and the beam of the antenna are improved.
The invention aims at realizing the following technical scheme: a common aperture millimeter wave lens antenna comprising: dielectric lens, metal wall and chip board; wherein the metal wall is arranged at the lower part of the dielectric lens; the chip plate is arranged inside the metal wall, and the center point of the chip plate is coincided with the focus of the dielectric lens.
In the common-caliber millimeter wave lens antenna, a vertical line where the spherical center of the dielectric lens is located coincides with the central axis of the metal wall.
In the common-caliber millimeter wave lens antenna, the chip board comprises a PCB board, a first antenna transmitting chip, a second antenna transmitting chip, a third antenna transmitting chip, a fourth antenna transmitting chip and an antenna receiving chip; the first antenna transmitting chip, the second antenna transmitting chip, the third antenna transmitting chip, the fourth antenna transmitting chip and the antenna receiving chip are all arranged on the PCB; the connecting lines among the first antenna transmitting chip, the second antenna transmitting chip, the third antenna transmitting chip and the fourth antenna transmitting chip form a square, and the antenna receiving chip is positioned at the center of the square.
In the common-caliber millimeter wave lens antenna, the center position of the square is coincident with the center point of the chip board.
In the common-caliber millimeter wave lens antenna, the PCB comprises a radiation layer, a prepreg bonding layer and a coupling feed layer; the radiation layer, the prepreg bonding layer and the coupling feed layer are sequentially connected.
In the common-caliber millimeter wave lens antenna, the radiation layer is a microstrip board coated copper.
In the common-caliber millimeter wave lens antenna, the coupling feed layer is a microstrip substrate with a dielectric constant of 3.
In the common-caliber millimeter wave lens antenna, the lens is made of polytetrafluoroethylene material.
In the common-caliber millimeter wave lens antenna, the center point of the metal wall coincides with the focus of the dielectric lens.
In the common-caliber millimeter wave lens antenna, the chip board is connected with the inner surface of the metal wall through a screw.
Compared with the prior art, the invention has the following beneficial effects:
(1) The invention realizes energy enhancement and beam focusing through the beam focusing of the dielectric lens;
(2) According to the invention, the transceiving antennas are designed to be of common caliber, and the transceiving antennas share the characteristics of one set of antenna, so that the volume of the device is reduced on the premise of realizing the same effect;
(3) The invention can effectively reduce side lobes by using the method of microstrip back cavity antenna design.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
fig. 1 is a schematic structural diagram of a common-caliber millimeter-wave lens antenna according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of a dielectric lens and metal wall connection provided by an embodiment of the present invention;
FIG. 3 is a schematic diagram of a standing wave coefficient of a unit according to an embodiment of the present invention;
Fig. 4 is a 3D pattern of a first group of antenna elements provided by an embodiment of the present invention;
fig. 5 is a main plane pattern of a first group of antenna elements provided by an embodiment of the present invention;
fig. 6 is a 3D pattern of a second set of antenna elements provided by an embodiment of the present invention;
fig. 7 is a main plane pattern of a second group of antenna elements provided in an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
Fig. 1 is a schematic structural diagram of a common-caliber millimeter-wave lens antenna according to an embodiment of the present invention. Fig. 2 is a schematic diagram of a dielectric lens and metal wall connection provided by an embodiment of the present invention. As shown in fig. 1 and 2, the common aperture millimeter wave lens antenna includes: a dielectric lens 1, a metal wall 2 and a chip board 3; wherein the metal wall 2 is arranged at the lower part of the dielectric lens 1; the chip plate 3 is arranged inside the metal wall 2, and the center point of the chip plate 3 coincides with the focal point of the dielectric lens 1. The center point of the metal wall 2 coincides with the focal point of the dielectric lens 1. The chip plate 3 is connected to the inner surface of the metal wall 2 by means of screws.
The vertical line of the center of sphere of the dielectric lens 1 coincides with the central axis of the metal wall 2.
The chip board 3 comprises a PCB board, a first antenna transmitting chip 4, a second antenna transmitting chip 5, a third antenna transmitting chip 6, a fourth antenna transmitting chip 7 and an antenna receiving chip 8; the first antenna transmitting chip 4, the second antenna transmitting chip 5, the third antenna transmitting chip 6, the fourth antenna transmitting chip 7 and the antenna receiving chip 8 are all arranged on the PCB; the connection lines among the first antenna transmitting chip 4, the second antenna transmitting chip 5, the third antenna transmitting chip 6 and the fourth antenna transmitting chip 7 form a square, and the antenna receiving chip 8 is positioned at the center of the square.
The center of the square coincides with the center point of the chip board 3.
The PCB comprises a radiation layer, a prepreg bonding layer and a coupling feed layer; the radiation layer, the prepreg bonding layer and the coupling feed layer are sequentially connected. The radiation layer is a microstrip board coated with copper. The coupling feed layer is a microstrip substrate with a dielectric constant of 3. The lens is made of polytetrafluoroethylene material.
The embodiment adopts a microstrip back cavity antenna and dielectric lens combined structure on the basis of the common-caliber antenna technology. The microstrip back cavity antenna is adopted, so that the structure size is small, the gain is high, and the integration is easy to realize; by reasonably designing and placing the positions of the receiving and transmitting antennas, overlapping the phase centers of the receiving and transmitting antennas, and adopting the principle of power beam focusing of the lens shared central point, the small-sized antenna with high gain and narrow beam of the transmitting and receiving antennas can be realized.
The transmitting microstrip back cavity antenna adopts an N-by-N array layout (in the embodiment, 2-by-2 array layout) to realize central point power beam focusing on the PCB, the receiving microstrip back cavity antenna is placed at the equivalent central point position of the transmitting antenna on the PCB, and the dielectric lens is placed at the position where the focus of the dielectric lens is shared with the equivalent central point of the transmitting and receiving antennas.
Designing an array antenna combination, and calculating the position of an antenna equivalent phase center point according to the array antenna beam pointing forming principle; and designing another unit antenna at the equivalent center position, wherein two groups of unit antennas are used for transmitting and one group of unit antennas are used for receiving, the equivalent phase centers of the two groups of antennas are overlapped, and a dielectric lens is placed above the position of which the center point is shared by the equivalent center points of the transmitting and receiving antennas, so that the center point power beam focusing is realized.
The dielectric lens 1 is arranged above the small chip plate 3, and the metal wall 2 is arranged at the periphery of the small chip plate 3; wherein,
The antenna transmitting end 4, the antenna transmitting end 5, the antenna transmitting end 6, the antenna transmitting end 7 and the antenna receiving end 8 are in the same plane;
the antenna transmitting end equivalent center and the receiving end center 8 are positioned at the same position, and the following constraint relation exists:
L1＝L2＝L3＝L4；
L5＝√2(L1)；
The focus of the dielectric lens 1 coincides with the center 8 of the receiving end;
The effect is as follows: the receiving antenna and the transmitting antenna are designed to be of the same caliber, the caliber of the antenna is reduced while the transmitting and receiving functions are realized, the center point power beam focusing is realized by installing the dielectric lens at the position where the focus of the dielectric lens is shared by the equivalent center points of the transmitting and receiving antennas, and the effect of amplifying gain is achieved, so that the gain of the antenna is improved and the antenna beam is narrowed.
Simulation analysis is carried out on the designed antenna combination to obtain the coincidence of the equivalent center positions of the two groups of antennas, and simulation results are shown in fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7.
A rectangular patch microstrip edge feed mode is adopted to design and develop a plate antenna. The antenna is divided into two layers, the two layers of dielectric plates are the same, the middle is bonded by using a prepreg, a strip line transmission structure is formed by punching a metal through hole on a dielectric copper-clad substrate, and excitation feeding is carried out on the upper radiation layer microstrip plate. The radiating layer slit edges radiate together with the strip line rectangular patch. The upper layer of the micro band plate is a radiation layer, the lower layer of the micro band plate is a coupling feed layer, and a back cavity structure is formed through a metallized via hole.
The narrow beam of the antenna is realized through the design of the lens, and the lens is made of polytetrafluoroethylene materials.
The antenna, lens and metal wall combination were combined to perform a shrouded pattern simulation. The results show that both the first set of antennas and the second set of antennas achieve high gain and narrow beam effects.
The embodiment realizes energy enhancement and beam focusing through beam focusing of the dielectric lens; according to the embodiment, the transceiving antennas are designed to be of the same caliber, and the transceiving antennas share the characteristics of one set of antenna, so that the size of the device is reduced on the premise of realizing the same effect; the embodiment can effectively reduce side lobes by using the microstrip back cavity antenna design method.
Although the present invention has been described in terms of the preferred embodiments, it is not intended to be limited to the embodiments, and any person skilled in the art can make any possible variations and modifications to the technical solution of the present invention by using the methods and technical matters disclosed above without departing from the spirit and scope of the present invention, so any simple modifications, equivalent variations and modifications to the embodiments described above according to the technical matters of the present invention are within the scope of the technical matters of the present invention.
Claims (10)
1. A common aperture millimeter wave lens antenna, comprising: a dielectric lens (1), a metal wall (2) and a chip board (3); wherein,
The metal wall (2) is arranged at the lower part of the dielectric lens (1);
The chip plate (3) is arranged inside the metal wall (2), and the center point of the chip plate (3) coincides with the focus of the dielectric lens (1).
2. The common-caliber millimeter-wave lens antenna according to claim 1, wherein: the vertical line of the sphere center of the dielectric lens (1) coincides with the central axis of the metal wall (2).
3. The common-caliber millimeter-wave lens antenna according to claim 1, wherein: the chip board (3) comprises a PCB board, a first antenna transmitting chip (4), a second antenna transmitting chip (5), a third antenna transmitting chip (6), a fourth antenna transmitting chip (7) and an antenna receiving chip (8); wherein,
The first antenna transmitting chip (4), the second antenna transmitting chip (5), the third antenna transmitting chip (6), the fourth antenna transmitting chip (7) and the antenna receiving chip (8) are all arranged on the PCB;
the connecting lines among the first antenna transmitting chip (4), the second antenna transmitting chip (5), the third antenna transmitting chip (6) and the fourth antenna transmitting chip (7) form a square, and the antenna receiving chip (8) is positioned at the center of the square.
4. A common aperture millimeter-wave lens antenna according to claim 3, wherein: the center position of the square is coincident with the center point of the chip board (3).
5. A common aperture millimeter-wave lens antenna according to claim 3, wherein: the PCB comprises a radiation layer, a prepreg bonding layer and a coupling feed layer; the radiation layer, the prepreg bonding layer and the coupling feed layer are sequentially connected.
6. The common-caliber millimeter-wave lens antenna according to claim 5, wherein: the radiation layer is a microstrip board coated copper.
7. The common-caliber millimeter-wave lens antenna according to claim 5, wherein: the coupling feed layer is a microstrip substrate with a dielectric constant of 3.
8. The common-caliber millimeter-wave lens antenna according to claim 1, wherein: the lens is made of polytetrafluoroethylene material.
9. The common-caliber millimeter-wave lens antenna according to claim 1, wherein: the center point of the metal wall (2) coincides with the focal point of the dielectric lens (1).
10. The common-caliber millimeter-wave lens antenna according to claim 1, wherein: the chip board (3) is connected with the inner surface of the metal wall (2) through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311801227.1A CN117977216A (en) | 2023-12-25 | 2023-12-25 | Common-caliber millimeter wave lens antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311801227.1A CN117977216A (en) | 2023-12-25 | 2023-12-25 | Common-caliber millimeter wave lens antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117977216A true CN117977216A (en) | 2024-05-03 |
Family
ID=90856622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311801227.1A Pending CN117977216A (en) | 2023-12-25 | 2023-12-25 | Common-caliber millimeter wave lens antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117977216A (en) |
-
2023
- 2023-12-25 CN CN202311801227.1A patent/CN117977216A/en active Pending
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