CN204391275U - Low section lightness E microstrip - Google Patents

Abstract

The utility model is suitable for the technical field of antenna structures, and provides a low-profile light-weight E-shaped microstrip antenna, which includes a metal base plate and a printed board for receiving electrical signals, and the printed board is fixedly installed on the place through a supporting column. the metal bottom plate with a first gap between them, a radio frequency connector for feeding power and transmitting electrical signals is arranged between the metal bottom plate and the printed board, and both the metal bottom plate and the printed board It is electrically connected with the radio frequency connector, and the opposite sides of the metal base plate are bent to form a bent part; the printed board includes an E-shaped patch and a dielectric board, and the E-shaped patch is attached to the On the dielectric board, the bent portion is located on both sides of the metal bottom plate parallel to the opening direction of the E-shaped patch, and is bent downward. The low-profile light-weight E-shaped microstrip antenna provided by the utility model has a simple structure, is easy to process and produce, and is light in weight, taking into account the characteristics of low profile and broadband, high gain, and reliable structure.

Description

Low Profile Lightweight E-shaped Microstrip Antenna

technical field

The utility model belongs to the technical field of antenna structures, in particular to a low-profile and lightweight E-shaped microstrip antenna.

Background technique

Microstrip antennas are widely used in various communication systems due to their low cost, low profile, and light weight. However, their further development is limited by their narrow bandwidth. Researchers have proposed a method of slotting the surface of the patch Construct dual-frequency resonance characteristics to obtain broadband microstrip antennas, the most classic of which is the E-shaped microstrip antenna.

In recent years, in the performance research of E-shaped microstrip antennas, researchers mostly aim at expanding the impedance bandwidth. The impedance bandwidth of a single-layer E-shaped microstrip antenna can reach more than 30%, and the E-shaped microstrip antenna with a stacked structure The impedance bandwidth can reach more than 40%. However, these E-shaped microstrip antennas all use thick dielectric substrates, and the design of reducing the antenna profile is not considered. However, the reduction of the antenna profile height is usually accompanied by the narrowing of the impedance bandwidth, and in practical applications, it is often encountered that the impedance bandwidth requirement is not so wide, but the antenna profile requirement is as low as possible, which requires the antenna When designing, multiple factors such as profile height, impedance bandwidth, gain, beam width, and backlobe should be considered comprehensively.

Utility model content

The purpose of the utility model is to overcome the shortcomings of the above-mentioned prior art, and provide a low-profile and lightweight E-shaped microstrip antenna, which has a simple structure, is easy to process and produce, and is light in weight, taking into account the characteristics of low profile and broadband, and high gain , reliable structure.

The utility model is realized in the following way: a low-profile light-weight E-shaped microstrip antenna includes a metal base plate and a printed board for receiving electrical signals, and the printed board is fixedly installed on the metal base plate through a support column , and there is a first gap between them, a radio frequency connector for feeding power and transmitting electrical signals is arranged between the metal base plate and the printed board, and both the metal base plate and the printed board are connected to the radio frequency The connector is electrically connected, and the opposite sides of the metal base plate are bent to form a bent portion; the printed board includes an E-shaped patch and a dielectric plate, and the E-shaped patch is attached to the dielectric plate , the bent portion is located on both sides of the metal bottom plate parallel to the opening direction of the E-shaped patch, and is bent downward.

Specifically, the metal bottom plate includes a folded metal plate and a mounting seat for fixing and installing the radio frequency connector, the bending part is formed on opposite sides of the folded metal plate, and the mounting seat is arranged on the center of the hemmed sheet metal.

Specifically, the height of the bent portion is less than or equal to the height of the first gap.

Specifically, the radio frequency connector includes a conductive probe and a ground conductive sheet, the conductive probe is electrically connected to the E-shaped patch, the ground conductive sheet is electrically connected to the metal base plate, and the radio frequency The connector is also provided with a mounting flange, and the mounting flange is connected with the mounting seat through fasteners.

Specifically, there are multiple support columns, and multiple mounting holes are correspondingly opened on the dielectric plate.

The utility model provides a low-profile light-weight E-shaped microstrip antenna. The printed board is fixedly installed on the metal base plate through the support column, and there is a first gap between them, and the metal base plate and the printed board are connected through the radio frequency connector. Feed power and transmit electrical signals. At the same time, the E-shaped patch is pasted on the dielectric board, and the bending part is located on the two sides of the metal base plate parallel to the opening direction of the E-shaped patch, and is bent downward. With this arrangement, the antenna has a simple structure, is easy to process and produce, and is light in weight. The antenna takes into account the characteristics of low profile and broadband, and expands the metal base plate by folding the edge, so as to improve the gain and structural reliability, and has high reliability in use.

Description of drawings

Fig. 1 is the structural representation of the low-profile lightweight E-shaped microstrip antenna provided by the embodiment of the utility model;

Fig. 2 is the top view of the low-profile and lightweight E-shaped microstrip antenna provided by the embodiment of the utility model;

Fig. 3 is a schematic structural view of the metal bottom plate provided by the embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in Figures 1 to 3, a low-profile and lightweight E-shaped microstrip antenna 1 provided by the embodiment of the present invention includes a metal base plate 11 and a printed board 12 for receiving electrical signals, and the printed board 12 passes through The support column 13 is fixedly installed on the metal base plate 11, and there is a first gap 14 therebetween. A radio frequency connector 15 for feeding power and transmitting electrical signals is arranged between the metal base plate 11 and the printed board 12, and the metal base plate 11 and the printed circuit board 12 The printed boards 12 are electrically connected to the radio frequency connector 15, and the metal base plate 11 and the printed board 12 are powered by the radio frequency connector 15, so that they can be used for receiving and transmitting broadband signals and meet the requirements of the antenna 1. The printed board 12 is light in weight, and the metal bottom plate 11 is made of a metal plate, usually a light metal material, such as aluminum, aluminum alloy, etc., of course, other light metal materials can also be used, thereby reducing the weight of the antenna 1. The overall quality improves the lightweight feature of the antenna 1 .

Specifically, as shown in FIG. 1 to FIG. 3 , the opposite sides of the metal bottom plate 11 are bent to form a bent portion 113 , the printed board 12 includes an E-shaped patch 121 and a dielectric plate 122 , and the E-shaped patch 121 is pasted Located on the dielectric plate 122 , the bent portion 113 is located on two sides of the metal bottom plate 11 parallel to the opening direction of the E-shaped patch 121 , and is bent downward. Through such arrangement, the antenna 1 is combined to form the antenna 1, taking into account the characteristics of low profile and broadband, and by bending the two opposite sides of the metal base plate 11 downward to form the bent portion 113, the thickness of the metal base plate 11 is expanded. Radiation area, so as to achieve the effect of improving the gain and structural reliability.

Specifically, as shown in FIGS. 1 to 3 , the metal bottom plate 11 includes a hemmed metal plate 111 and a mounting seat 112 for fixing and installing the radio frequency connector 15 , and the bent portion 113 is formed on opposite sides of the hemmed metal plate 111 , the mounting seat 112 is disposed at the center of the hemmed metal plate 111 . The printed board 12 is installed and fixed on the upper surface of the metal bottom plate 11 through the support column 13 , and the mounting seat 112 is arranged on the bottom surface of the metal bottom plate 11 . During installation, the radio frequency connector 15 is installed on the mounting base 112, passes through the mounting base 112, and is electrically connected to the printed board 12 and the metal base 11, so as to supply power to the printed board 12 and the metal base at the same time. The electrical signals received by the printed board 12 and the metal base plate 11 are output to corresponding devices for use through the radio frequency connector 15 .

Specifically, in order to ensure the impedance bandwidth and gain effect of the antenna 1 , in this embodiment, the height of the bent portion 113 is less than or equal to the height of the first gap 14 .

Specifically, as shown in FIG. 1 and FIG. 3, the radio frequency connector 15 includes a conductive probe (not shown in the figure) and a ground electrode conductive sheet (not shown in the figure), and the conductive probe is electrically connected to the E-shaped patch 121. connection, the ground electrode conductive sheet is electrically connected to the metal base plate 11 , and the radio frequency connector 15 is also provided with a mounting flange 151 , and the mounting flange 151 is connected to the mounting seat 112 through the fastener 16 . Since the actual functions of the E-shaped patch 121 and the metal base plate 11 are different, in addition, in actual use, the conductive probe is the positive pole, and the ground conductive sheet is the negative pole. The function of the signal. In addition, in order to facilitate the installation of the radio frequency connector 15, a mounting flange 151 is also provided on the radio frequency connector 15, so that the radio frequency connector 15 is fixed by passing the fastener 16 on the mounting flange 151, so that the installation and connection are convenient. Good stability.

Specifically, as shown in Figures 1 and 2, in order to ensure the stability of the printed board 12 installed on the metal base plate 11, so as to be able to reliably receive electrical signals, a plurality of support columns 13 are provided, and the dielectric board 122 A plurality of mounting holes 123 are correspondingly opened on the top. In this way, by means of one-to-one correspondence arrangement, screw fasteners are pierced through the installation holes 123 to install and connect the printed board 12 and the metal bottom plate 11 , ensuring the stability of the connection.

In the low-profile light-weight E-shaped microstrip antenna 1 provided by the embodiment of the utility model, the printed board 12 is fixedly installed on the metal base plate 11 through a plurality of support columns 13, and there is a first gap 14 therebetween, and will be positioned on the metal base plate 11 , the two sides parallel to the opening direction of the E-shaped patch 121 are bent downward to form a bent portion 113 , and the height of the bent portion 113 is set to be less than or equal to the height of the first gap 14 . In this way, the profile of the antenna 1 is extremely low, taking into account the characteristics of low profile and broadband, and the setting of the bent portion 113 expands the radiation area of the metal base plate 11, thereby achieving the effect of improving gain and structural reliability. In addition, the overall structure of the antenna 1 is simple, easy to process and produce, light in weight, easy to install, and highly capable of mass production.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modification, equivalent replacement or improvement made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (5)

1. A low-profile light-weight E-shaped microstrip antenna, characterized in that it includes a metal base plate and a printed board for receiving electrical signals, and the printed board is fixedly installed on the metal base plate by a support column, and There is a first gap between them, and a radio frequency connector for feeding power and transmitting electrical signals is arranged between the metal base plate and the printed board, and both the metal base plate and the printed board are connected to the radio frequency connector For electrical connection, the opposite sides of the metal base plate are bent to form a bent portion; the printed board includes an E-shaped patch and a dielectric plate, and the E-shaped patch is attached to the dielectric plate. The bent portion is located on both sides of the metal bottom plate parallel to the opening direction of the E-shaped patch, and is bent downward. 2. The low-profile light-weight E-shaped microstrip antenna as claimed in claim 1, wherein the metal base plate includes a folded metal plate and a mount for fixedly installing the radio frequency connector, and the bent portions are formed on opposite sides of the hemmed metal plate, and the mounting seat is arranged at the center of the hemmed metal plate. 3. The low-profile and lightweight E-shaped microstrip antenna according to claim 1 or 2, wherein the height of the bent portion is less than or equal to the height of the first gap. 4. The low-profile light-weight E-shaped microstrip antenna as claimed in claim 2, wherein the radio frequency connector includes a conductive probe and a ground electrode conductive sheet, and the conductive probe and the E-shaped patch Electrically connected, the ground electrode conductive sheet is electrically connected to the metal base plate, and the radio frequency connector is also provided with a mounting flange, and the mounting flange is connected to the mounting seat through a fastener. 5 . The low-profile and lightweight E-shaped microstrip antenna according to claim 2 , wherein there are a plurality of support columns, and a plurality of mounting holes are correspondingly opened on the dielectric plate. 5 .