Miniaturized low-profile UWB array antenna

Abstract

The utility model discloses a miniaturized low-profile UWB array antenna, which comprises a substrate, a main radiation plate and two radiation patches, the main radiation plate is arranged on the top of the substrate and is connected with the substrate, and the radiation patches are attached to the main radiation plate and are symmetrically arranged on a central line. The radiation patch is a square patch, two triangular grooves are symmetrically formed in two opposite corners of the radiation patch, the parasitic patch is connected to the side face of the radiation patch, and the gain of the antenna can be improved by arranging the triangular grooves and the parasitic patch.

Description

Technical Field

[0001] The utility model relates to the field of antennas, and in particular to a miniaturized low-profile UWB array antenna. Background Art

[0002] With the rapid development of wireless communication technology, the penetration rate of various terminal devices in daily life has increased rapidly, and people's requirements for mobile communication devices are increasingly tending towards miniaturization and low profile. Therefore, designing low-profile and high-performance antennas has become one of the current research focuses. In pursuit of strong anti-interference ability, wider directional robustness and polarization matching requirements, indoor positioning antennas need to have characteristics such as low profile, strong adaptability and small size. At the same time, its performance such as bandwidth and gain must also meet certain standards to better meet user needs.

[0003] With the rapid development of wireless communication technology, the penetration rate of various terminal devices in daily life has increased rapidly, and people's requirements for mobile communication devices are increasingly tending towards miniaturization and low profile. Therefore, designing low-profile and high-performance antennas has become one of the current research focuses. In pursuit of strong anti-interference ability, wider directional robustness and polarization matching requirements, indoor positioning antennas need to have characteristics such as low profile, strong adaptability and small size. At the same time, its performance such as bandwidth and gain must also meet certain standards to better meet user needs. Utility Model Content

[0004] The main purpose of the utility model is to provide a miniaturized low-profile UWB array antenna with the characteristics of easy production and light weight.

[0005] The utility model proposes a miniaturized low-profile UWB array antenna, comprising a substrate, a main radiation board and two radiation patches, wherein the main radiation board is arranged on the top of the substrate and connected to the substrate, and the radiation patches are arranged on the main radiation board and symmetrically on the midline;

[0006] The radiation patch is a square patch, and two triangular grooves are symmetrically arranged on two opposite corners of the radiation patch. A parasitic patch is connected to the side of the radiation patch. The gain of the antenna can be improved by arranging the triangular grooves and the parasitic patches.

[0007] Preferably, it further comprises a rear patch, which is arranged on the back of the main radiation board, and the radiation patch is connected to the rear patch through a metal connecting column.

[0008] Preferably, the parasitic patch includes a first parasitic patch and a second parasitic patch, and the first parasitic patch and the second parasitic patch are respectively connected and arranged on the front and rear sides of the square patch.

[0009] Preferably, the length of the second parasitic patch is greater than that of the first parasitic patch, and the widths of the second parasitic patch and the first parasitic patch are the same.

[0010] The beneficial effects of the miniaturized low-profile UWB array antenna of the utility model are:

[0011] 1. By providing a radiation patch with symmetrical triangular grooves on the main radiation plate, the influence of a too small substrate on the overall parameters can be overcome, and the overall antenna size can be reduced without increasing the thickness, and the requirements of the existing design can be met.

[0012] 2. By setting parasitic patches on both sides of the radiation patch, the effective radiation area can be expanded and the gain of the antenna can be increased, which is beneficial to improving the positioning accuracy and system performance of the antenna, and enhancing the antenna's ability to receive and send signals, thereby improving the performance and reliability of the positioning system.

[0013] 3. Compared with traditional external antennas, no external wiring is required, thus avoiding the problem of signal quality degradation due to interference from external factors.

[0014] 4. It can achieve high integration, reduce the volume of the product, and improve the overall performance of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A top view of the miniaturized low-profile UWB array antenna of the utility model;

[0016] Figure 2 A bottom view of the main radiation board of the miniaturized low-profile UWB array antenna of the utility model;

[0017] Numbers in the figure: 1, main radiation board, 2, radiation patch, 3, first parasitic patch, 4, second parasitic patch, 5, rear patch, 21, triangular slot.

[0018] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0019] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] Reference Figure 1 and Figure 2 , an embodiment of a miniaturized low-profile UWB array antenna of the utility model is proposed:

[0021] A miniaturized low-profile UWB array antenna comprises a substrate, a main radiation plate 1, a parasitic patch 3, a rear patch 4 and two radiation patches 2.

[0022] The main radiation board 1 is arranged on the top of the substrate and connected to the substrate, and the radiation patch 2 is arranged on the main radiation board 1 in affixed manner. The radiation patch 2 is a square patch, and two triangular grooves 21 are symmetrically arranged at two opposite corners of the radiation patch 2. The radiation patches 2 on both sides have the same shape and are symmetrically arranged along the center line of the main radiation board 1.

[0023] The first parasitic patch 3 and the second parasitic patch 4 are connected to the front and rear sides of the radiation patch 3, respectively. The first parasitic patch 3, the second parasitic patch 4 and the radiation patch 2 are integrally formed. The length of the second parasitic patch 4 is greater than that of the first parasitic patch 3, and the width of the second parasitic patch 4 is consistent with that of the first parasitic patch 3. One end of the second parasitic patch 4 extends outward from one side of the radiation patch 2, and the length of the second parasitic patch 4 extending outward is consistent with the length of the connection between the second parasitic patch 4 and the radiation patch 2.

[0024] The rear patch 4 is arranged on the rear side of the main radiation board 1 . The rear patch 5 is circular and corresponds to the radiation patch 2 . The radiation patch 2 is connected to the rear patch 5 through a metal connecting column.

[0025] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. A miniaturized low-profile UWB array antenna, characterized in that: It includes a substrate, a main radiation board and two radiation patches, wherein the main radiation board is arranged on the top of the substrate and connected to the substrate, and the radiation patches are attached to the main radiation board and symmetrically arranged on the midline; The radiation patch is a square patch, and two triangular grooves are symmetrically arranged on two opposite corners of the radiation patch. A parasitic patch is connected to the side of the radiation patch. The gain of the antenna can be improved by arranging the triangular grooves and the parasitic patches.

2. The miniaturized low-profile UWB array antenna according to claim 1, characterized in that: It also includes a rear patch, which is arranged on the rear side of the main radiation board, and the radiation patch is connected to the rear patch through a metal connecting column.

3. The miniaturized low-profile UWB array antenna according to claim 1, characterized in that: The parasitic patch includes a first parasitic patch and a second parasitic patch, and the first parasitic patch and the second parasitic patch are respectively connected and arranged on the front and rear sides of the square patch.

4. The miniaturized low-profile UWB array antenna according to claim 3, characterized in that: The length of the second parasitic patch is greater than that of the first parasitic patch, and the widths of the second parasitic patch and the first parasitic patch are the same.

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