CN212783817U - Ku wave band phased array microstrip antenna - Google Patents
Ku wave band phased array microstrip antenna Download PDFInfo
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- CN212783817U CN212783817U CN202022018893.6U CN202022018893U CN212783817U CN 212783817 U CN212783817 U CN 212783817U CN 202022018893 U CN202022018893 U CN 202022018893U CN 212783817 U CN212783817 U CN 212783817U
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Abstract
The utility model provides a ku wave band phased array microstrip antenna, including the medium base plate, locate a plurality of radiation paster on the medium base plate front, locate the metal ground plate on the medium base plate back, the radiation paster is the rectangle, and its center coincides with the medium base plate center, is equipped with the feed point on the radiation paster, and the feed point is located the symmetry axis of radiation paster; the microstrip antenna feeds power through a coaxial line, and an inner conductor of the coaxial line penetrates through the dielectric substrate to be connected with the metal grounding plate. The utility model discloses a microstrip antenna, its characteristic that has the low section, the section is only 1 in 13 minutes of center frequency wavelength, and uses individual layer PCB, and coaxial back is presented, simple structure, has low weight, low-cost advantage.
Description
Technical Field
The utility model relates to an antenna technology field particularly, relates to a ku wave band phased array microstrip antenna.
Background
At present, with the continuous development of the mobile communication industry, especially the rapid progress of the millimeter wave technology, the requirements for integration, miniaturization and easy conformation of the antenna are higher and higher, and the patch antenna is widely concerned in the industry due to the characteristics of low profile, integration, easy array assembly and the like. However, the conventional phased array antenna has high profile, heavy weight and high cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a ku wave band phased array microstrip antenna, its section is only 1 of 13 minutes of central line frequency wavelength, uses individual layer PCB, and coaxial backfeed, simple structure.
The embodiment of the utility model discloses a realize through following technical scheme: a ku-band phased array microstrip antenna comprises a dielectric substrate, a plurality of radiation patches arranged on the front surface of the dielectric substrate, and a metal ground plate arranged on the back surface of the dielectric substrate,
the radiation patch is rectangular, the center of the radiation patch is superposed with the center of the dielectric substrate, and a feed point is arranged on the radiation patch and is arranged on a symmetry axis of the radiation patch;
the microstrip antenna is fed through a coaxial line, and the inner conductor of the coaxial line penetrates through the dielectric substrate to be connected with the metal grounding plate.
According to a preferred embodiment, the microstrip antenna adopts a feeding mode of coaxial back feeding.
According to a preferred embodiment, the dielectric substrate is a single-layer PCB, and the interior of the dielectric substrate is a hollow structure.
According to a preferred embodiment, the metal grounding plate is arranged in the middle of the back surface of the dielectric substrate.
According to a preferred embodiment, the ratio of the long side to the short side of the feed point on the symmetry axis of the radiating patch is 7.2: 1.
According to a preferred embodiment, the plurality of radiating patches are arranged linearly.
According to a preferred embodiment, the microstrip antenna has a cross-sectional thickness of 1-fold center frequency wavelength of 13 minutes.
The utility model discloses technical scheme has following advantage and beneficial effect at least: the utility model discloses a microstrip antenna, its characteristic that has the low section, the section is only 1 in 13 minutes of center frequency wavelength, and uses individual layer PCB, and coaxial back is presented, simple structure, has low weight, low-cost advantage.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a longitudinal sectional view of a microstrip antenna provided in embodiment 1 of the present invention;
fig. 2 is a plan view of a microstrip antenna provided in embodiment 1 of the present invention;
fig. 3 is a bottom view of the microstrip antenna provided in embodiment 1 of the present invention;
fig. 4 is a cross-sectional view of a microstrip antenna provided in embodiment 1 of the present invention;
fig. 5 is a transverse cross-sectional view of a microstrip antenna provided in embodiment 1 of the present invention;
fig. 6 is a schematic structural view of a dielectric substrate provided in embodiment 1 of the present invention;
icon: 1-dielectric substrate, 2-radiation patch, 3-metal grounding plate, 4-feeding point, 5-coaxial line and 6-coaxial feeding interface.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and thus, cannot be understood as a limitation of the present invention.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
As shown in fig. 1-6, the present embodiment provides a ku-band phased array microstrip antenna, which includes a dielectric substrate, a plurality of radiating patches disposed on the front surface of the dielectric substrate, and a metal ground plate disposed on the back surface of the dielectric substrate, wherein,
in this embodiment, the dielectric substrate is a single-layer PCB, and the interior thereof is a hollow structure, so that the weight of the microstrip antenna in this embodiment is low; in the example, the length of the dielectric substrate is 122.6mm, the width is 14.8mm, and the thickness is 1.57 mm; the plurality of radiation patches are linearly arranged at equal intervals, the interval between adjacent radiation patches is about 4.15mm, and the interval between the radiation patches at the two sides and the side edge of the dielectric substrate is about 4.84 mm.
The metal grounding plate is arranged in the middle of the back of the dielectric substrate, and optionally, the metal grounding plate is rectangular and coated with copper; the length of the metal grounding plate is 121.6mm, the width of the metal grounding plate is 13.7mm, and the distances between the periphery of the metal grounding plate and the periphery of the dielectric substrate are the same and are all 0.5 mm.
Optionally, the number of the radiation patches is even, in this example, the number of the radiation patches is 12, where the radiation patches are rectangular, the centers of the radiation patches coincide with the center of the dielectric substrate, the length of the radiation patches is 5.65mm, and the width of the radiation patches is 5.29 mm.
The radiation patch is provided with a feed point, the feed point is arranged on a symmetry axis of the radiation patch, and optionally, the ratio of the long side to the short side of the feed point on the symmetry axis of the radiation patch is 7.2: 1;
the microstrip antenna adopts a coaxial back feed mode, the microstrip antenna feeds through a coaxial line, a coaxial line inner conductor penetrates through the hollow interior of the dielectric substrate and is connected with a coaxial feed interface of the metal ground plate, the coaxial feed interface corresponds to the feed point, and the microstrip antenna is ensured to be matched with the input impedance.
The traditional phased array antenna has high profile, heavy weight and high cost; the cross section of the microstrip antenna in this embodiment is only 1/13 of the wavelength of the center frequency.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A ku-band phased array microstrip antenna is characterized by comprising a dielectric substrate, a plurality of radiation patches arranged on the front surface of the dielectric substrate, and a metal grounding plate arranged on the back surface of the dielectric substrate,
the radiation patch is rectangular, the center of the radiation patch is superposed with the center of the dielectric substrate, and a feed point is arranged on the radiation patch and is arranged on a symmetry axis of the radiation patch;
the microstrip antenna is fed through a coaxial line, and the inner conductor of the coaxial line penetrates through the dielectric substrate to be connected with the metal grounding plate.
2. The ku band phased array microstrip antenna according to claim 1 wherein said microstrip antenna is fed by coaxial backfeed.
3. The ku band phased array microstrip antenna according to claim 1 wherein said dielectric substrate is a single layer PCB board with a hollow interior.
4. The ku band phased array microstrip antenna according to claim 1 wherein said metal ground plane is centrally disposed on the back side of said dielectric substrate.
5. The ku band phased array microstrip antenna according to claim 1 wherein said feed point has a ratio of long to short sides of 7.2:1 on the symmetry axis of said radiating patch.
6. The ku band phased array microstrip antenna according to claim 1 wherein said plurality of radiating patches are linearly arranged.
7. The ku band phased array microstrip antenna according to claim 1 wherein said microstrip antenna has a cross-sectional thickness of 1 center frequency wavelength divided by 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022018893.6U CN212783817U (en) | 2020-09-15 | 2020-09-15 | Ku wave band phased array microstrip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022018893.6U CN212783817U (en) | 2020-09-15 | 2020-09-15 | Ku wave band phased array microstrip antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212783817U true CN212783817U (en) | 2021-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022018893.6U Active CN212783817U (en) | 2020-09-15 | 2020-09-15 | Ku wave band phased array microstrip antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212783817U (en) |
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2020
- 2020-09-15 CN CN202022018893.6U patent/CN212783817U/en active Active
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