Small-sized low-profile printed dual-frequency dipole antenna

Abstract

The utility model discloses a small-sized low-profile printing double-frequency symmetrical dipole antenna, which comprises a metal reflecting plate and a dielectric substrate which are connected through a copper column, two surfaces of the dielectric substrate are respectively provided with a group of radiation units, and each radiation unit comprises a connecting piece and two inverted U-shaped structures arranged at two ends of the connecting piece. The beneficial effects of the utility model are that: it can be compatible with 2.4 G-2.5 G and 4.9 G-5.85 G wave band signals.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of small low profile printed double-frequency symmetrical array element antenna. BACKGROUND

[0002] Wireless communication system develops to large capacity, multi-function, multi-band, ultra-wideband, miniaturization direction, system antenna increases in quantity, weight, cost rises, electromagnetic complexity is high and coupling interference is serious situation is proposed. The antenna working at two or more frequency bands can reduce the cost of communication system, miniaturization and realize good electromagnetic compatibility, maximum limit improves spectrum efficiency and resource sharing, reduces the overall cost of wireless communication system, reduces weight, reduces electromagnetic coupling.

[0003] Symmetrical dipole is the most widely used antenna in antenna engineering technology application. In communication, broadcasting, television, radar, navigation, telemetry, remote sensing and other radio application systems. Printed symmetrical dipole has the characteristics of low profile, small volume, light weight, low cost, easy integration and array composition. UTILIT Y MODEL CONTENT

[0004] The utility model solves the problem that a kind of small low profile printed double-frequency symmetrical array element antenna compatible with frequency 2.4G-2.5G and 4.9G-5.85G band is provided.

[0005] To solve the above technical problem, the utility model adopts the technical scheme: a kind of small low profile printed double-frequency symmetrical array element antenna, including the metal reflecting plate and dielectric substrate connected by copper column, characterized in that, the two surfaces of the dielectric substrate are respectively provided with a group of radiation units, the radiation unit includes connecting piece and two inverted U-shaped structures arranged at the two ends of the connecting piece.

[0006] Preferably, the small low profile printed double-frequency symmetrical array element antenna, wherein at least two convex structures are provided on the connecting piece.

[0007] Preferably, the small low profile printed double-frequency symmetrical array element antenna, wherein the metal reflecting plate is parallelly arranged with the dielectric substrate.

[0008] Preferably, the small low profile printed double-frequency symmetrical array element antenna, wherein the metal reflecting plate is provided with back glue on the side away from the dielectric substrate.

[0009] Preferably, the small low profile printed double-frequency symmetrical array element antenna, wherein the metal reflecting plate is connected with the joint by cable.

[0010] Preferably, the small low profile printed double-frequency symmetrical array element antenna, wherein the thickness of the metal reflecting plate is 0.7-1.3mm.

[0011] Preferably, in the above-described small low-profile printed dual-frequency symmetrical array antenna, the dielectric substrate has a dielectric constant of 3.5.

[0012] Preferably, in the above-mentioned small low-profile printed dual-frequency symmetrical array antenna, the thickness of the dielectric substrate is 0.6-1.0 mm.

[0013] The main technical advantages of this invention are: it is compatible with the frequency bands required by IEEE 802.11b and IEEE 802.11a, namely 2.4-2.5GHz and 4.9-5.85GHz; and it achieves easy manufacturing, low cost, small size, light weight, low profile, dual frequency band, and high gain. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 for Figure 1 Top view of the dielectric substrate;

[0016] Figure 3 for Figure 1 A schematic diagram of the bottom structure of the dielectric substrate. Detailed Implementation

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

[0018] like Figure 1 , 2 As shown in Figure 3, a small, low-profile printed dual-frequency symmetrical array antenna includes a metal reflector 1 and a dielectric substrate 2 connected by copper pillars 6. The metal reflector 1 has a thickness of 0.7-1.3 mm, and the dielectric substrate 2 has a dielectric constant of 3.5 and a thickness of 0.6-1.0 mm. In this invention, the metal reflector 1 and the dielectric substrate 2 are arranged parallel to each other. The metal reflector 1 is connected to a connector 4 via a cable 5.

[0019] The two surfaces of the dielectric substrate 2 are respectively provided with a group of radiation units 3, the radiation unit 3 comprises a connecting piece 31 and two inverted U-shaped structures 32 arranged at two ends of the connecting piece 31.

[0020] The metal reflecting plate 1 in the utility model is provided with a back adhesive 7 on the side far from the dielectric substrate 2, and the back adhesive 7 is used for being pasted on a wall surface or other object surface.

[0021] It should be noted that the standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, and the mechanical parts and equipment adopt the conventional type in the prior art, and the utility model person will not be described in detail.

[0022] The above has carried out the detailed description to one embodiment of the utility model, but the content is only the preferred embodiment of the utility model, and cannot be considered for limiting the implementation scope of the utility model. Any equivalent change and improvement made according to the application scope of the utility model should still belong to the patent coverage scope of the utility model.

Claims

1. A small low profile printed dual-band symmetrical array antenna comprising a metal reflector plate and a dielectric substrate connected by copper pillars, characterized in that: The two surfaces of the medium substrate are respectively provided with a group of radiation units, the radiation unit comprises a connecting piece and two inverted U-shaped structures arranged at two ends of the connecting piece.

2. The compact low-profile printed dual-band symmetrical array antenna according to claim 1, wherein: At least two convex structures are arranged on the connecting piece.

3. The compact low-profile printed dual-band symmetrical array antenna according to claim 1 or 2, characterized in that: The metal reflecting plate is arranged in parallel with the medium substrate.

4. The compact low-profile printed dual-band symmetrical array antenna according to claim 3, wherein: The metal reflecting plate is provided with back adhesive on the side away from the medium substrate.

5. The compact low-profile printed dual-band symmetrical array antenna according to claim 1 or 2, characterized in that: The metal reflecting plate is connected with a connector through a cable.

6. The compact low-profile printed dual-band symmetrical array antenna according to claim 1 or 2, characterized in that: The thickness of the metal reflecting plate is 0.7-1.3mm.

7. The compact low-profile printed dual-band symmetrical array antenna according to claim 6, characterized in that: The dielectric constant of the medium substrate is 3.

5.

8. The small low-profile printed dual-band symmetrical array antenna according to claim 1, wherein: The thickness of the medium substrate is 0.6-1.0mm.

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