CN-224232928-U - Radome and antenna assembly

Abstract

The application provides an antenna housing and an antenna assembly, wherein the antenna housing comprises a first substrate layer, a supporting layer and a second substrate layer which are stacked, the thicknesses of the first substrate layer and the second substrate layer are different, the supporting layer is provided with a plurality of hollowed-out areas, and the hollowed-out areas face the first substrate layer and the second substrate layer respectively so as to form a path allowing electromagnetic waves to be transmitted from the first substrate layer to the second substrate layer. The radome can meet the wave-transmitting requirement of a large angle.

Inventors

• LIU GUODONG
• YIN LIUZHONG

Assignees

• 深圳TCL数字技术有限公司

Dates

Publication Date

20260512

Application Date

20250616

Claims (10)

1. 1. The antenna housing is characterized by comprising a first substrate layer, a supporting layer and a second substrate layer which are arranged in a stacked mode, wherein the thicknesses of the first substrate layer and the second substrate layer are different; The supporting layer is provided with a plurality of hollowed-out areas, and the hollowed-out areas face the first substrate layer and the second substrate layer respectively so as to form a path allowing electromagnetic waves to transmit from the first substrate layer to the second substrate layer.
2. 2. The radome of claim 1, wherein the support layer is a honeycomb structure, the honeycomb structure comprises a plurality of honeycomb units, the plurality of honeycomb units are arranged in sequence, and each honeycomb unit forms the hollowed-out area.
3. 3. The radome of claim 2, wherein the honeycomb cells have a wall thickness of 0.3mm to 0.7mm.
4. 4. A radome according to any one of claims 1 to 3, wherein the refractive index of the first substrate layer is the same as the refractive index of the second substrate layer.
5. 5. The radome of any one of claims 1 to 3, wherein the relative dielectric constants of the first substrate layer and the second substrate layer are each less than 4, and the loss tangent values of the first substrate layer and the second substrate layer are each less than 0.01.
6. 6. A radome according to any one of claims 1 to 3, wherein the support layer is integrally formed with at least one of the first substrate layer and the second substrate layer.
7. 7. A radome according to any one of claims 1 to 3, wherein the thickness of the first substrate layer is greater than the thickness of the second substrate layer.
8. 8. The radome of claim 7, wherein the first substrate layer has a thickness of 0.3mm to 0.7mm and the second substrate layer has a thickness of 0.2 to 0.4mm.
9. 9. A radome according to any one of claims 1 to 3, wherein the outer surface of the second substrate layer is provided with locally thickened areas for enhanced structural strength.
10. 10. An antenna assembly, comprising: A radome, which is the radome of any one of claims 1 to 9; and the antenna structure is arranged on one side of the first substrate layer close to the antenna housing.

Description

Radome and antenna assembly Technical Field The utility model relates to the technical field of antennas, in particular to an antenna housing and an antenna assembly. Background In the technical field of the existing radome, the design scheme of the radome is mainly divided into a dome-shaped radome and a multilayer plane radome. The radome is an important component for electromagnetic wave transmission, has extremely strict performance requirements, and needs to have high wave transmittance, wide-angle coverage, broadband response and enough structural strength. However, these high performance indexes cause the design and manufacturing process of the radome to become extremely complex, and the cost is high, which limits the popularization of the radome in consumer electronics. In recent years, millimeter wave radar technology has been widely used in various fields by virtue of its advantages of privacy protection, broadband communication, and volumetric power consumption. But the short wavelength nature of millimeter waves makes its transmission capability highly dependent on the choice and design of radome materials. The radome in the traditional scheme has large obstruction to millimeter waves with short wavelength and large angle and low wave transmission rate, and influences the antenna performance. Therefore, how to design a radome capable of meeting the requirement of wide-angle wave transmission becomes a key problem in the development of the current technology. Disclosure of utility model The embodiment of the application provides an antenna housing and an antenna assembly, which can meet the wave transmission requirement of a large angle. The embodiment of the application provides an antenna housing, which comprises a first substrate layer, a supporting layer and a second substrate layer which are arranged in a stacked manner, wherein the thicknesses of the first substrate layer and the second substrate layer are different; The supporting layer is provided with a plurality of hollowed-out areas, and the hollowed-out areas face the first substrate layer and the second substrate layer respectively so as to form a path allowing the electromagnetic waves to be transmitted from the first substrate layer to the second substrate layer. In some embodiments, the supporting layer is a honeycomb structure, the honeycomb structure includes a plurality of honeycomb units, the honeycomb units are sequentially arranged, and each honeycomb unit forms the hollowed-out area. In some embodiments, the honeycomb cells have a wall thickness of 0.3mm to 0.7mm. In some embodiments, the refractive index of the first substrate layer is the same as the refractive index of the second substrate layer. In some embodiments, the relative dielectric constants of the first substrate layer and the second substrate layer are both less than 4, and the loss tangent values of the first substrate layer and the second substrate layer are both less than 0.01. In some embodiments, the support layer is integrally formed with at least one of the first substrate layer and the second substrate layer. In some embodiments, the thickness of the first substrate layer is greater than the thickness of the second substrate layer. In some embodiments, the first substrate layer has a thickness of 0.3mm to 0.7mm and the second substrate layer has a thickness of 0.2 to 0.4mm. In some embodiments, the outer surface of the second substrate layer is provided with localized thickened regions for enhanced structural strength. The embodiment of the application also provides an antenna assembly, which comprises: the antenna housing is the antenna housing; and the antenna structure is arranged on one side of the first substrate layer close to the antenna housing. In the radome and the antenna assembly provided by the embodiment of the application, the radome comprises a first substrate layer, a supporting layer and a second substrate layer which are stacked, wherein the thicknesses of the first substrate layer and the second substrate layer are different, the supporting layer is provided with a plurality of hollowed-out areas, and the hollowed-out areas face the first substrate layer and the second substrate layer respectively so as to form a path allowing electromagnetic waves to be transmitted from the first substrate layer to the second substrate layer. Through optimizing the lamination structural design, the phase superposition effect of the twice interface reflected wave and the once transmitted wave generated by the thickness difference between the first substrate layer and the second substrate layer is utilized, the transmittance of the incident electromagnetic wave with a large angle is obviously improved, and the wave transmission requirement with a large angle can be met. Drawings In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the description of the