Curved surface ceramic antenna

Abstract

The utility model discloses a curved surface ceramic antenna which comprises an antenna module and an installation module, the antenna module is installed on the installation module, and the antenna module comprises a radiation layer, a dielectric layer, a grounding layer, a first feed pin and a second feed pin. The radiation layer is mounted on one side of the dielectric layer, the grounding layer is mounted on the other side of the dielectric layer, a first cambered surface is arranged on one side, close to the dielectric layer, of the radiation layer, and a second cambered surface is arranged on one side, close to the dielectric layer, of the grounding layer. According to the curved-surface ceramic antenna disclosed by the utility model, the antenna module is subjected to curved-surface design, so that the effect that the antenna and the cylindrical shell are attached and conformal during installation is achieved, the shielding is less, and the use quality of the antenna is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of antennas, and in particular relates to a curved ceramic antenna. Background Art

[0002] The application of satellite positioning systems has been very extensive. Satellite positioning systems can be used for navigation services in the fields of sea, land, and air. They are also widely used in military industry, measurement and other fields that require precise positioning. The size of navigation positioning and communication equipment is getting smaller and smaller, requiring antennas to develop in the aspects of miniaturization, lightness, and high reliability.

[0003] At present, ceramic antennas are widely used. For ordinary ceramic antennas, feed pins are installed in the antenna ceramic sheet, and the feed pins are connected to the radiating surface and pass through the ceramic sheet for feeding. Under the same conditions, the larger the antenna radiating surface area, the lower the antenna frequency. Ordinary ceramic antennas are planar antennas and can only be assembled in a planar environment. However, when the assembly environment is a cylindrical shell, the antenna ground plane cannot fit the cylinder in the same shape, and the cylinder blocks the antenna relatively more, thus affecting the use of the antenna.

[0004] Therefore, further improvements are made to the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a curved ceramic antenna. By designing the antenna module to have a curved surface, the antenna and the cylindrical shell can be made to fit in a conformal manner during installation, with less obstruction, thereby improving the quality of antenna use.

[0006] In order to achieve the above object, the utility model provides a curved ceramic antenna, including an antenna module and a mounting module, wherein the antenna module is mounted on the mounting module, wherein:

[0007] The antenna module includes a radiation layer, a dielectric layer, a ground layer, a first feed needle and a second feed needle, the radiation layer is installed on one side of the dielectric layer and the ground layer is installed on the other side of the dielectric layer, the radiation layer is provided with a first arc surface on a side close to the dielectric layer and the ground layer is provided with a second arc surface on a side close to the dielectric layer, a third arc surface and a fourth arc surface are respectively provided on both sides of the dielectric layer, the first arc surface is fitted with the third arc surface and the second arc surface is fitted with the fourth arc surface; the first end of the first feed needle and the first end of the second feed needle are both installed on the radiation layer, and the second end of the first feed needle and the second end of the second feed needle both pass through the dielectric layer and the ground layer in sequence;

[0008] The mounting module includes a shell, a ground plate, a feeding network, a matching resistor and a connector. The shell is provided with a fifth arc surface on a side close to the antenna module and a first plane on a side of the shell away from the antenna module. The ground layer is provided with a sixth arc surface on a side away from the dielectric layer, and the fifth arc surface is in contact with the sixth arc surface. The ground plate is fixedly installed on the first plane and the feeding network is installed on the ground plate. The matching resistor, the connector, the first feed pin and the second feed pin are all electrically connected to the feeding network.

[0009] As a further preferred technical solution of the above technical solution, the second end of the first feed needle and the second end of the second feed needle penetrate the ground layer and then sequentially penetrate the shell and the ground plate and are electrically connected to the feeding network respectively.

[0010] As a further preferred technical solution of the above technical solution, the shell is provided with a plurality of connecting holes.

[0011] As a further preferred technical solution of the above technical solution, the radiation layer, the dielectric layer, the grounding layer, the shell and the grounding plate are all provided with a first mounting hole and a second mounting hole for installing the first feed needle and the second feed needle.

[0012] As a further preferred technical solution of the above technical solution, a distance is set between the first feeding needle and the second feeding needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a structural schematic diagram of a curved ceramic antenna.

[0014] Figure 2 The utility model is a structural schematic diagram of a curved ceramic antenna.

[0015] Figure 3 The utility model is a structural schematic diagram of a curved ceramic antenna.

[0016] The reference numerals include: 10, antenna module; 11, radiation layer; 12, dielectric layer; 13, ground layer; 14, first feed pin; 15, second feed pin; 20, mounting module; 21, shell; 22, ground plate; 23, feeding network; 24, matching resistor; 25, connector; 26, connecting hole. DETAILED DESCRIPTION

[0017] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0018] The utility model discloses a curved ceramic antenna. The specific embodiments of the utility model are further described below in conjunction with preferred embodiments.

[0019] In the embodiments of the present invention, those skilled in the art note that the ceramics and the like involved in the present invention may be regarded as prior art.

[0020] Preferred embodiments.

[0021] like Figure 1-3 As shown, the utility model discloses a curved ceramic antenna, comprising an antenna module 10 and a mounting module 20, wherein the antenna module 10 is mounted on the mounting module 20, wherein:

[0022] The antenna module 10 includes a radiation layer 11, a dielectric layer 12, a ground layer 13, a first feed needle 14 and a second feed needle 15, the radiation layer 11 is installed on one side of the dielectric layer 12 and the ground layer 13 is installed on the other side of the dielectric layer 12, the radiation layer 11 is provided with a first arc surface on the side close to the dielectric layer 12 and the ground layer 13 is provided with a second arc surface on the side close to the dielectric layer 12, the dielectric layer 12 is provided with a third arc surface and a fourth arc surface on both sides, the first arc surface is bonded to the third arc surface and the second arc surface is bonded to the fourth arc surface; the first end of the first feed needle 14 and the first end of the second feed needle 15 are both installed on the radiation layer 11, and the second end of the first feed needle 14 and the second end of the second feed needle 15 pass through the dielectric layer 12 and the ground layer 13 in sequence;

[0023] The installation module 20 includes a shell 21, a ground plate 22, a feed network 23, a matching resistor 24 and a connector 25. The shell 21 is provided with a fifth arc surface on the side close to the antenna module 10 and the shell 21 is provided with a first plane away from the antenna module. The ground layer 13 is provided with a sixth arc surface on the side away from the dielectric layer 12, and the fifth arc surface is in contact with the sixth arc surface; the ground plate 22 is fixedly installed on the first plane and the feed network 23 is installed on the ground plate 22, and the matching resistor 24, the connector 25, the first feed needle 14 and the second feed needle 15 are all electrically connected to the feed network 23.

[0024] Specifically, after penetrating the ground layer, the second end of the first feed needle 14 and the second end of the second feed needle 15 also sequentially penetrate the housing 21 and the ground plate 22 and are electrically connected to the feed network 23 respectively.

[0025] More specifically, the housing 21 is provided with a plurality of connecting holes 26 .

[0026] Furthermore, the radiation layer 11 , the dielectric layer 12 , the grounding layer 13 , the shell 21 and the grounding plate 22 are all provided with a first mounting hole and a second mounting hole (not shown) for mounting the first feed needle 14 and the second feed needle 15 .

[0027] Furthermore, a distance is provided between the first feeding needle 14 and the second feeding needle 15 .

[0028] For this utility model:

[0029] The radiating layer can resonate with the corresponding frequency and be fed through the shell through the feed needle to the feeding network on the ground plane. The feeding network has a matching resistor and is finally synthesized to the connector.

[0030] It is worth mentioning that the technical features such as ceramics involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected by conventional methods in the field and should not be regarded as the invention point of this utility model patent. This utility model patent will not be further elaborated.

[0031] For those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A curved ceramic antenna, characterized in that: It comprises an antenna module and a mounting module, wherein the antenna module is mounted on the mounting module, wherein: The antenna module includes a radiation layer, a dielectric layer, a ground layer, a first feed needle and a second feed needle, the radiation layer is installed on one side of the dielectric layer and the ground layer is installed on the other side of the dielectric layer, the radiation layer is provided with a first arc surface on a side close to the dielectric layer and the ground layer is provided with a second arc surface on a side close to the dielectric layer, a third arc surface and a fourth arc surface are respectively provided on both sides of the dielectric layer, the first arc surface is fitted with the third arc surface and the second arc surface is fitted with the fourth arc surface; the first end of the first feed needle and the first end of the second feed needle are both installed on the radiation layer, and the second end of the first feed needle and the second end of the second feed needle both pass through the dielectric layer and the ground layer in sequence; The mounting module includes a shell, a ground plate, a feeding network, a matching resistor and a connector. The shell is provided with a fifth arc surface on a side close to the antenna module and a first plane on a side of the shell away from the antenna module. The ground layer is provided with a sixth arc surface on a side away from the dielectric layer, and the fifth arc surface is in contact with the sixth arc surface. The ground plate is fixedly installed on the first plane and the feeding network is installed on the ground plate. The matching resistor, the connector, the first feed pin and the second feed pin are all electrically connected to the feeding network.

2. The curved ceramic antenna according to claim 1, characterized in that: After penetrating the ground layer, the second end of the first feed needle and the second end of the second feed needle also sequentially penetrate the housing and the ground plate and are electrically connected to the feed network respectively.

3. The curved ceramic antenna according to claim 2, characterized in that: The shell is provided with a plurality of connection holes.

4. The curved ceramic antenna according to claim 3, characterized in that: The radiation layer, the dielectric layer, the grounding layer, the shell and the grounding plate are all provided with a first mounting hole and a second mounting hole for mounting the first feed pin and the second feed pin.

5. The curved ceramic antenna according to claim 4, characterized in that: A distance is set between the first feeding needle and the second feeding needle.

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