Multi-band indoor distributed ceiling antenna

Abstract

This utility model relates to a multi-band indoor distributed ceiling-mounted antenna. A lower conical base plate is fixed to the upper surface of a substrate. The lower end of an insulating bracket is fixed to the outer circumference of the lower conical tube, and the upper end of the insulating bracket is fixed to the outer circumference of the upper conical tube. The upper conical base plate is located above the lower conical top plate. The lower end of a grounding cable is fixed to the lower conical tube, and the upper end of the grounding cable is fixed to the upper conical tube. The first pin of a capacitor is fixed to the lower conical tube, and the second pin of the capacitor is fixed to the upper conical tube. The lower end of a connector cable is fixed to the substrate, the middle part of the connector cable is installed in the central hole of the lower conical top plate, and the upper end of the connector cable is installed in the central hole of the upper conical base plate. This utility model adopts a double-conical design, which can effectively reduce the volume. This utility model is an omnidirectional antenna, which is convenient for indoor coverage.

Description

Technical Field

[0001] This utility model belongs to the field of antenna technology, and specifically discloses a multi-band indoor distributed ceiling antenna. Background Technology

[0002] With the rapid development of wireless communication technology and the widespread adoption of the information society, the development of mobile communication technology has become increasingly important, and mobile users have increasingly higher requirements for the capacity and quality of wireless communication. However, current wireless channels suffer from problems such as multipath fading, spectrum congestion, and noise interference, which significantly affect the improvement of data rates.

[0003] To enhance indoor wireless signal coverage and improve blind spots, various indoor antennas are commonly used. Indoor antennas are a crucial component for mobile communications in providing wireless signal coverage in enclosed spaces, and broadband antennas capable of simultaneously supporting multiple networks will undoubtedly maximize the satisfaction of operators' needs. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a multi-band indoor distributed ceiling antenna that is easy to cover indoors and is miniaturized.

[0005] According to the technical solution provided by this utility model, the multi-band indoor distributed ceiling antenna includes a substrate, a lower cone, an upper cone, an insulating bracket, a grounding cable, a capacitor, and a connector cable. The lower cone is made of a conductor material and includes a lower cone cylinder, a lower cone cylinder bottom plate, and a lower cone cylinder top plate. The lower cone cylinder is a hollow conical cylinder with a smaller upper opening and a larger lower opening. The lower cone cylinder bottom plate is fixed on the outer circle of the lower end of the lower cone cylinder and is annular. The lower cone cylinder top plate is fixed on the inner circle of the upper end of the lower cone cylinder and has a central hole. The upper cone is made of a conductor material and includes an upper cone cylinder and an upper cone cylinder bottom plate. The upper cone cylinder is a hollow conical cylinder with a larger upper opening and a smaller lower opening. The upper cone cylinder bottom plate is fixed on the inner circle of the lower end of the upper cone cylinder and has a central hole.

[0006] The lower conical base plate is fixed to the upper surface of the substrate, which is an FR4 printed circuit board. The lower end of the insulating bracket is fixed to the outer circle of the lower conical cylinder, and the upper end of the insulating bracket is fixed to the outer circle of the upper conical cylinder. The upper conical base plate is located above the lower conical top plate. The lower end of the grounding cable is fixed to the lower conical cylinder, and the upper end of the grounding cable is fixed to the upper conical cylinder. The first pin of the capacitor is fixed to the lower conical cylinder, and the second pin of the capacitor is fixed to the upper conical cylinder.

[0007] The lower end of the connector cable is fixed on the base plate, the middle part of the connector cable is installed in the center hole of the lower cone top plate and welded to the lower cone top plate, and the upper end of the connector cable is installed in the center hole of the upper cone bottom plate and welded to the upper cone bottom plate.

[0008] Preferably, at least three evenly distributed radial grooves are formed on the lower cone, with the length direction of the radial grooves being the same as the generatrix length direction of the lower cone. At least three evenly distributed radial grooves are formed on the bottom plate of the lower cone, dividing the bottom plate into independent sector plates. A circumferential groove is formed on each sector plate of the lower cone bottom plate, which is concentric with the bottom plate. The central angle of the circumferential groove is less than the central angle of the sector plate of the lower cone bottom plate to which it is located. The same end of each circumferential groove is connected to the corresponding radial groove. The number of radial grooves, bottom plate radial grooves, and circumferential grooves is equal. The lower end of the radial groove is connected to the inner end of the corresponding radial groove.

[0009] Preferably, the lower cone and the upper cone are coaxially arranged.

[0010] Preferably, the taper of the lower cone is greater than that of the upper cone, the outer diameter of the lower end of the lower cone is greater than the outer diameter of the upper end of the upper cone, and the inner diameter of the upper end of the lower cone is greater than the inner diameter of the lower end of the upper cone.

[0011] Preferably, the system also includes an antenna radome, which is fixed to the substrate and encloses the substrate, lower cone, upper cone, insulating support, grounding cable, and capacitor within it.

[0012] This invention adopts a double-cone design, which can effectively reduce the size; this invention is an omnidirectional antenna, which is convenient for indoor coverage. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a front view of the present invention after the antenna cover has been removed.

[0015] Figure 3 This is a top view of the present invention after the antenna cover has been removed.

[0016] Figure 4 This is a perspective view of the present invention after the antenna cover has been removed. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] A multi-band indoor distributed ceiling antenna includes a substrate 1, a lower cone 2, an upper cone 3, an insulating bracket 4, a grounding cable 5, a capacitor 6, and a connector cable 7. The lower cone 2 is made of conductive material and includes a lower cone cylinder 2.1, a lower cone cylinder bottom plate 2.2, and a lower cone cylinder top plate. The lower cone cylinder 2.1 is a hollow conical cylinder with a smaller upper opening and a larger lower opening. The lower cone cylinder bottom plate 2.2 is fixed to the outer circle of the lower end of the lower cone cylinder 2.1 and is annular. The lower cone cylinder top plate is fixed to the inner circle of the upper end of the lower cone cylinder 2.1 and has a central hole. The upper cone 3 is made of conductive material and includes an upper cone cylinder 3.1 and an upper cone cylinder bottom plate. The upper cone cylinder 3.1 is a hollow conical cylinder with a larger upper opening and a smaller lower opening. The upper cone cylinder bottom plate is fixed to the inner circle of the lower end of the upper cone cylinder 3.1 and has a central hole.

[0019] The lower conical base plate 2.2 is fixed on the upper surface of the substrate 1, which is an FR4 printed circuit board. The lower end of the insulating bracket 4 is fixed on the outer circle of the lower conical 2.1, and the upper end of the insulating bracket 4 is fixed on the outer circle of the upper conical 3.1. The upper conical base plate is located above the lower conical top plate. The lower end of the grounding cable 5 is fixed on the lower conical 2.1, and the upper end of the grounding cable 5 is fixed on the upper conical 3.1. The first pin of the capacitor 6 is fixed on the lower conical 2.1, and the second pin of the capacitor 6 is fixed on the upper conical 3.1.

[0020] The lower end of the connector cable 7 is fixed on the base plate 1, the middle part of the connector cable 7 is installed in the center hole of the lower cone top plate and welded to the lower cone top plate, and the upper end of the connector cable 7 is installed in the center hole of the upper cone bottom plate and welded to the upper cone bottom plate.

[0021] At least three evenly distributed radial grooves 2.11 are formed on the lower cone 2.1, with the length direction of the radial grooves 2.11 being the same as the length direction of the generatrix of the lower cone 2.1. At least three evenly distributed radial grooves 2.21 are formed on the lower cone bottom plate 2.2, dividing the lower cone bottom plate 2.2 into independent sector plates. A circumferential groove 2.22 is formed on each sector plate of the lower cone bottom plate 2.2. The groove 2.22 is concentrically arranged with the lower conical bottom plate 2.2. The central angle of the circumferential groove 2.22 of the lower conical bottom plate is less than the central angle of the sector plate of the lower conical bottom plate 2.2 to which it is located. The same end of each circumferential groove 2.22 of the lower conical bottom plate is connected to the corresponding radial groove 2.21 of the lower conical bottom plate. The number of radial grooves 2.11 of the lower conical bottom plate and radial grooves 2.21 of the lower conical bottom plate are equal to the number of circumferential grooves 2.22 of the lower conical bottom plate. The lower end of the radial groove 2.11 of the lower conical bottom plate is connected to the inner end of the corresponding radial groove 2.21 of the lower conical bottom plate.

[0022] The lower cone 2.1 and the upper cone 3.1 are coaxially arranged.

[0023] The taper of the lower cone 2.1 is greater than that of the upper cone 3.1, the outer diameter of the lower end of the lower cone 2.1 is greater than the outer diameter of the upper end of the upper cone 3.1, and the inner diameter of the upper end of the lower cone 2.1 is greater than the inner diameter of the lower end of the upper cone 3.1.

[0024] It also includes an antenna cover 8, which is fixed to the substrate 1. The antenna cover 8 covers the substrate 1, the lower cone 2, the upper cone 3, the insulating support 4, the grounding cable 5 and the capacitor 6 inside it.

[0025] During assembly, the 4.3-10 connector cable 7 is passed through the connector cable mounting hole in the center of the base plate 1 and fixed to the base plate 1 with metal screws. The center hole of the lower cone top plate is passed through the connector cable 7, and the lower cone bottom plate 2.2 is fixed to the upper surface of the base plate 1 with plastic rivets. The connector cable 7 is welded to the lower cone top plate. The center hole of the upper cone bottom plate is passed through the connector cable 7, and the upper cone 3.1 is fixed to the outer circle of the lower cone 2.1 with the insulating bracket 4. The connector cable 7 is welded to the upper cone bottom plate. The two ends of the grounding cable 5 and the capacitor 6 are welded to the lower cone 2.1 and the upper cone 3.1 respectively, so that the lower cone 2 and the upper cone 3 are electrically connected, thereby obtaining the antenna. The assembled and welded antenna is covered with the antenna cover 8, and the antenna cover 8 is fixed to the base plate 1 with metal screws.

[0026] This invention uses the lower cone 2 and the upper cone 3 as the main body of the antenna, which mainly generates signals in the frequency bands of 698-960MHz, 1695-2700MHz and 5200-6000MHz. It is matched with capacitor 6 to form a single-input single-output (SISO) multi-band omnidirectional antenna.

[0027] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A multi-band indoor distributed ceiling antenna, comprising a substrate (1), a lower cone (2), an upper cone (3), an insulating support (4), a grounding cable (5), a capacitor (6) and a joint cable (7), characterized in that: The lower cone (2) is made of conductive material. The lower cone (2) includes a lower cone cylinder (2.1), a lower cone cylinder bottom plate (2.2), and a lower cone cylinder top plate. The lower cone cylinder (2.1) is a hollow conical cylinder with a small upper opening and a large lower opening. The lower cone cylinder bottom plate (2.2) is fixed on the outer circle of the lower end of the lower cone cylinder (2.1). The lower cone cylinder bottom plate (2.2) is annular. The lower cone cylinder top plate is fixed on the inner circle of the upper end of the lower cone cylinder (2.1). The lower cone cylinder top plate has a central hole. The upper cone (3) is made of conductive material. The upper cone (3) includes an upper cone cylinder (3.1) and an upper cone cylinder bottom plate. The upper cone cylinder (3.1) is a hollow conical cylinder with a large upper opening and a small lower opening. The upper cone cylinder bottom plate is fixed on the inner circle of the lower end of the upper cone cylinder (3.1). The upper cone cylinder bottom plate has a central hole. The lower cone base plate (2.2) is fixed on the upper surface of the substrate (1), the substrate (1) is an FR4 printed circuit board, the lower end of the insulating bracket (4) is fixed on the outer circle of the lower cone (2.1), the upper end of the insulating bracket (4) is fixed on the outer circle of the upper cone (3.1), the upper cone base plate is located above the lower cone top plate, the lower end of the grounding cable (5) is fixed on the lower cone (2.1), the upper end of the grounding cable (5) is fixed on the upper cone (3.1), the first pin of the capacitor (6) is fixed on the lower cone (2.1), and the second pin of the capacitor (6) is fixed on the upper cone (3.1); The lower end of the connector cable (7) is fixed on the base plate (1), the middle part of the connector cable (7) is installed in the center hole of the lower cone top plate and welded to the lower cone top plate, and the upper end of the connector cable (7) is installed in the center hole of the upper cone bottom plate and welded to the upper cone bottom plate.

2. The multi-band indoor distributed ceiling antenna as described in claim 1, characterized in that: in At least three evenly distributed radial grooves (2.11) are provided on the lower cone (2.1), the length direction of which is the same as the generatrix length direction of the lower cone (2.1). At least three evenly distributed radial grooves (2.21) are provided on the bottom plate (2.2) of the lower cone, dividing the bottom plate (2.2) into independent sector plates. A circumferential groove (2.22) is provided on each sector plate of the bottom plate (2.2). (2.22) is concentrically set with the lower cone bottom plate (2.2). The central angle of the circumferential groove (2.22) of the lower cone bottom plate is less than the central angle of the sector plate of the lower cone bottom plate (2.2). The same end of each circumferential groove (2.22) of the lower cone bottom plate is connected to the corresponding radial groove (2.21) of the lower cone bottom plate. The number of radial grooves (2.11) of the lower cone bottom plate, radial grooves (2.21) of the lower cone bottom plate and circumferential grooves (2.22) of the lower cone bottom plate are equal. The lower end of the radial groove (2.11) of the lower cone bottom plate is connected to the inner end of the corresponding radial groove (2.21) of the lower cone bottom plate.

3. The multi-band indoor distributed ceiling antenna as described in claim 1 or 2, characterized in that: The lower cone (2.1) and the upper cone (3.1) are coaxially arranged.

4. The multi-band indoor distributed ceiling antenna as described in claim 3, characterized in that: The taper of the lower cone (2.1) is greater than that of the upper cone (3.1), the outer diameter of the lower end of the lower cone (2.1) is greater than that of the upper end of the upper cone (3.1), and the inner diameter of the upper end of the lower cone (2.1) is greater than that of the lower end of the upper cone (3.1).

5. The multi-band indoor distributed ceiling antenna as described in claim 1, characterized in that: It also includes an antenna cover (8), which is fixed to the substrate (1). The antenna cover (8) covers the substrate (1), the lower cone (2), the upper cone (3), the insulating support (4), the grounding cable (5) and the capacitor (6) inside it.

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